Upstream to latest libcxx from NDK

.clang-format

@@ -12,10 +12,10 @@ AllowShortFunctionsOnASingleLine: true
 AllowShortLambdasOnASingleLine: All
 AttributeMacros: ['_LIBCPP_HIDE_FROM_ABI',
                   '_LIBCPP_CONSTEXPR',
-                  '_LIBCPP_CONSTEXPR_AFTER_CXX11',
+                  '_LIBCPP_CONSTEXPR_SINCE_CXX14',
-                  '_LIBCPP_CONSTEXPR_AFTER_CXX14',
+                  '_LIBCPP_CONSTEXPR_SINCE_CXX17',
-                  '_LIBCPP_CONSTEXPR_AFTER_CXX17',
+                  '_LIBCPP_CONSTEXPR_SINCE_CXX20',
-                  '_LIBCPP_CONSTEXPR_AFTER_CXX20',
+                  '_LIBCPP_CONSTEXPR_SINCE_CXX23',
                   '_LIBCPP_ALIGNOF',
                   '_ALIGNAS_TYPE',
                   '_ALIGNAS',
@@ -65,7 +65,6 @@ IndentRequires: true
 InsertTrailingCommas: Wrapped
 KeepEmptyLinesAtTheStartOfBlocks: false
 MaxEmptyLinesToKeep: 1
-NamespaceIndentation: Inner
 PackConstructorInitializers: NextLine
 
 PenaltyIndentedWhitespace: 2

.clang-tidy

@@ -15,6 +15,7 @@ Checks: >
 
   modernize-loop-convert,
   modernize-redundant-void-arg,
+  modernize-use-override,
 
   readability-duplicate-include,
   readability-identifier-naming,
@@ -24,6 +25,7 @@ Checks: >
   readability-redundant-control-flow,
   readability-redundant-function-ptr-dereference,
   readability-redundant-preprocessor,
+  readability-simplify-boolean-expr,
   readability-simplify-subscript-expr,
   readability-uniqueptr-delete-release,
 
@@ -38,6 +40,12 @@ CheckOptions:
     value: lower_case
   - key:   readability-identifier-naming.ParameterPrefix
     value: __
+  - key:   readability-identifier-naming.PrivateMemberCase
+    value: lower_case
+  - key:   readability-identifier-naming.PrivateMemberPrefix
+    value: __
+  - key:   readability-identifier-naming.PrivateMemberSuffix
+    value: _
 
 # TODO: investigate these checks
 # bugprone-branch-clone,
@@ -49,7 +57,6 @@ CheckOptions:
 # modernize-use-equals-default,
 # modernize-use-equals-delete,
 # modernize-use-nullptr,
-# modernize-use-override,
 # portability-restrict-system-includes,
 # readability-function-cognitive-complexity,
 # readability-implicit-bool-conversion,
@@ -57,4 +64,4 @@ CheckOptions:
 # readability-redundant-access-specifiers,
 # readability-redundant-declaration,
 # readability-redundant-member-init,
-# readability-simplify-boolean-expr,
+#

Android.mk

@@ -31,6 +31,7 @@ libcxx_sources := \
     legacy_pointer_safety.cpp \
     locale.cpp \
     memory.cpp \
+    memory_resource.cpp \
     mutex.cpp \
     mutex_destructor.cpp \
     new.cpp \

benchmarks/CMakeLists.txt

@@ -176,6 +176,7 @@ set(BENCHMARK_TESTS
     algorithms/stable_sort.bench.cpp
     allocation.bench.cpp
     deque.bench.cpp
+    deque_iterator.bench.cpp
     filesystem.bench.cpp
     format_to_n.bench.cpp
     format_to.bench.cpp
@@ -184,7 +185,9 @@ set(BENCHMARK_TESTS
     formatter_float.bench.cpp
     formatter_int.bench.cpp
     function.bench.cpp
+    join_view.bench.cpp
     map.bench.cpp
+    monotonic_buffer.bench.cpp
     ordered_set.bench.cpp
     std_format_spec_string_unicode.bench.cpp
     string.bench.cpp

benchmarks/algorithms/common.h

@@ -49,8 +49,8 @@ struct AllOrders : EnumValuesAsTuple<AllOrders, Order, 7> {
 // These values are arranged in such a way that they would invoke O(N^2)
 // behavior on any quick sort implementation that satisifies certain conditions.
 // Details are available in the following paper:
-// "A Killer Adversary for Quicksort", M. D. McIlroy, Software—Practice &
+// "A Killer Adversary for Quicksort", M. D. McIlroy, Software-Practice &
-// ExperienceVolume 29 Issue 4 April 10, 1999 pp 341–344.
+// Experience Volume 29 Issue 4 April 10, 1999 pp 341-344.
 // https://dl.acm.org/doi/10.5555/311868.311871.
 template <class T>
 void fillAdversarialQuickSortInput(T& V, size_t N) {

benchmarks/deque_iterator.bench.cpp

@@ -0,0 +1,232 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <algorithm>
+#include <deque>
+
+#include "benchmark/benchmark.h"
+
+namespace {
+void run_sizes(auto benchmark) {
+  benchmark->Arg(0)
+      ->Arg(1)
+      ->Arg(2)
+      ->Arg(64)
+      ->Arg(512)
+      ->Arg(1024)
+      ->Arg(4000)
+      ->Arg(4096)
+      ->Arg(5500)
+      ->Arg(64000)
+      ->Arg(65536)
+      ->Arg(70000);
+}
+
+template <class FromContainer, class ToContainer, class Func>
+void benchmark_containers(benchmark::State& state, FromContainer& d, ToContainer& v, Func&& func) {
+  for (auto _ : state) {
+    benchmark::DoNotOptimize(v);
+    benchmark::DoNotOptimize(d);
+    func(d.begin(), d.end(), v.begin());
+  }
+}
+
+template <class Func>
+void benchmark_deque_vector(benchmark::State& state, Func&& func) {
+  auto size = state.range(0);
+  std::deque<int> d;
+  d.resize(size);
+  std::ranges::fill(d, 10);
+  std::vector<int> v;
+  v.resize(size);
+  benchmark_containers(state, d, v, func);
+}
+
+template <class Func>
+void benchmark_deque_deque(benchmark::State& state, Func&& func) {
+  auto size = state.range(0);
+  std::deque<int> d;
+  d.resize(size);
+  std::ranges::fill(d, 10);
+  std::deque<int> v;
+  v.resize(size);
+  benchmark_containers(state, d, v, func);
+}
+
+template <class Func>
+void benchmark_vector_deque(benchmark::State& state, Func&& func) {
+  auto size = state.range(0);
+  std::vector<int> d;
+  d.resize(size);
+  std::ranges::fill(d, 10);
+  std::deque<int> v;
+  v.resize(size);
+  benchmark_containers(state, d, v, func);
+}
+
+template <class FromContainer, class ToContainer, class Func>
+void benchmark_containers_backward(benchmark::State& state, FromContainer& d, ToContainer& v, Func&& func) {
+  for (auto _ : state) {
+    benchmark::DoNotOptimize(v);
+    benchmark::DoNotOptimize(d);
+    func(d.begin(), d.end(), v.end());
+  }
+}
+
+template <class Func>
+void benchmark_deque_vector_backward(benchmark::State& state, Func&& func) {
+  auto size = state.range(0);
+  std::deque<int> d;
+  d.resize(size);
+  std::ranges::fill(d, 10);
+  std::vector<int> v;
+  v.resize(size);
+  benchmark_containers_backward(state, d, v, func);
+}
+
+template <class Func>
+void benchmark_deque_deque_backward(benchmark::State& state, Func&& func) {
+  auto size = state.range(0);
+  std::deque<int> d;
+  d.resize(size);
+  std::ranges::fill(d, 10);
+  std::deque<int> v;
+  v.resize(size);
+  benchmark_containers_backward(state, d, v, func);
+}
+
+template <class Func>
+void benchmark_vector_deque_backward(benchmark::State& state, Func&& func) {
+  auto size = state.range(0);
+  std::vector<int> d;
+  d.resize(size);
+  std::ranges::fill(d, 10);
+  std::deque<int> v;
+  v.resize(size);
+  benchmark_containers_backward(state, d, v, func);
+}
+
+struct CopyFunctor {
+  template <class... Args>
+  auto operator()(Args... args) const {
+    std::copy(std::forward<Args>(args)...);
+  }
+} copy;
+
+struct MoveFunctor {
+  template <class... Args>
+  auto operator()(Args... args) const {
+    std::move(std::forward<Args>(args)...);
+  }
+} move;
+
+struct CopyBackwardFunctor {
+  template <class... Args>
+  auto operator()(Args... args) const {
+    std::copy_backward(std::forward<Args>(args)...);
+  }
+} copy_backward;
+
+struct MoveBackwardFunctor {
+  template <class... Args>
+  auto operator()(Args... args) const {
+    std::move_backward(std::forward<Args>(args)...);
+  }
+} move_backward;
+
+// copy
+void BM_deque_vector_copy(benchmark::State& state) { benchmark_deque_vector(state, copy); }
+BENCHMARK(BM_deque_vector_copy)->Apply(run_sizes);
+
+void BM_deque_vector_ranges_copy(benchmark::State& state) { benchmark_deque_vector(state, std::ranges::copy); }
+BENCHMARK(BM_deque_vector_ranges_copy)->Apply(run_sizes);
+
+void BM_deque_deque_copy(benchmark::State& state) { benchmark_deque_deque(state, copy); }
+BENCHMARK(BM_deque_deque_copy)->Apply(run_sizes);
+
+void BM_deque_deque_ranges_copy(benchmark::State& state) { benchmark_deque_deque(state, std::ranges::copy); }
+BENCHMARK(BM_deque_deque_ranges_copy)->Apply(run_sizes);
+
+void BM_vector_deque_copy(benchmark::State& state) { benchmark_vector_deque(state, copy); }
+BENCHMARK(BM_vector_deque_copy)->Apply(run_sizes);
+
+void BM_vector_deque_ranges_copy(benchmark::State& state) { benchmark_vector_deque(state, std::ranges::copy); }
+BENCHMARK(BM_vector_deque_ranges_copy)->Apply(run_sizes);
+
+// move
+void BM_deque_vector_move(benchmark::State& state) { benchmark_deque_vector(state, move); }
+BENCHMARK(BM_deque_vector_move)->Apply(run_sizes);
+
+void BM_deque_vector_ranges_move(benchmark::State& state) { benchmark_deque_vector(state, std::ranges::move); }
+BENCHMARK(BM_deque_vector_ranges_move)->Apply(run_sizes);
+
+void BM_deque_deque_move(benchmark::State& state) { benchmark_deque_deque(state, move); }
+BENCHMARK(BM_deque_deque_move)->Apply(run_sizes);
+
+void BM_deque_deque_ranges_move(benchmark::State& state) { benchmark_deque_deque(state, std::ranges::move); }
+BENCHMARK(BM_deque_deque_ranges_move)->Apply(run_sizes);
+
+void BM_vector_deque_move(benchmark::State& state) { benchmark_vector_deque(state, move); }
+BENCHMARK(BM_vector_deque_move)->Apply(run_sizes);
+
+void BM_vector_deque_ranges_move(benchmark::State& state) { benchmark_vector_deque(state, std::ranges::move); }
+BENCHMARK(BM_vector_deque_ranges_move)->Apply(run_sizes);
+
+// copy_backward
+void BM_deque_vector_copy_backward(benchmark::State& state) { benchmark_deque_vector_backward(state, copy_backward); }
+BENCHMARK(BM_deque_vector_copy_backward)->Apply(run_sizes);
+
+void BM_deque_vector_ranges_copy_backward(benchmark::State& state) {
+  benchmark_deque_vector_backward(state, std::ranges::copy_backward);
+}
+BENCHMARK(BM_deque_vector_ranges_copy_backward)->Apply(run_sizes);
+
+void BM_deque_deque_copy_backward(benchmark::State& state) { benchmark_deque_deque_backward(state, copy_backward); }
+BENCHMARK(BM_deque_deque_copy_backward)->Apply(run_sizes);
+
+void BM_deque_deque_ranges_copy_backward(benchmark::State& state) {
+  benchmark_deque_deque_backward(state, std::ranges::copy_backward);
+}
+BENCHMARK(BM_deque_deque_ranges_copy_backward)->Apply(run_sizes);
+
+void BM_vector_deque_copy_backward(benchmark::State& state) { benchmark_vector_deque_backward(state, copy_backward); }
+BENCHMARK(BM_vector_deque_copy_backward)->Apply(run_sizes);
+
+void BM_vector_deque_ranges_copy_backward(benchmark::State& state) {
+  benchmark_vector_deque_backward(state, std::ranges::copy_backward);
+}
+BENCHMARK(BM_vector_deque_ranges_copy_backward)->Apply(run_sizes);
+
+// move_backward
+void BM_deque_vector_move_backward(benchmark::State& state) { benchmark_deque_vector_backward(state, move_backward); }
+BENCHMARK(BM_deque_vector_move_backward)->Apply(run_sizes);
+
+void BM_deque_vector_ranges_move_backward(benchmark::State& state) {
+  benchmark_deque_vector_backward(state, std::ranges::move_backward);
+}
+BENCHMARK(BM_deque_vector_ranges_move_backward)->Apply(run_sizes);
+
+void BM_deque_deque_move_backward(benchmark::State& state) { benchmark_deque_deque_backward(state, move_backward); }
+BENCHMARK(BM_deque_deque_move_backward)->Apply(run_sizes);
+
+void BM_deque_deque_ranges_move_backward(benchmark::State& state) {
+  benchmark_deque_deque_backward(state, std::ranges::move_backward);
+}
+BENCHMARK(BM_deque_deque_ranges_move_backward)->Apply(run_sizes);
+
+void BM_vector_deque_move_backward(benchmark::State& state) { benchmark_vector_deque_backward(state, move_backward); }
+BENCHMARK(BM_vector_deque_move_backward)->Apply(run_sizes);
+
+void BM_vector_deque_ranges_move_backward(benchmark::State& state) {
+  benchmark_vector_deque_backward(state, std::ranges::move_backward);
+}
+BENCHMARK(BM_vector_deque_ranges_move_backward)->Apply(run_sizes);
+
+} // namespace
+
+BENCHMARK_MAIN();

benchmarks/formatter_float.bench.cpp

@@ -203,7 +203,7 @@ struct Precision<PrecisionE::Small> {
 
 template <>
 struct Precision<PrecisionE::Huge> {
-  // The maximum precision for a minimal sub normal long double is ±0x1p-16494.
+  // The maximum precision for a minimal sub normal long double is +/- 0x1p-16494.
   // This value is always larger than that value forcing the trailing zero path
   // to be executed.
   static constexpr const char* fmt = ".17000";

benchmarks/join_view.bench.cpp

@@ -0,0 +1,77 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <algorithm>
+#include <deque>
+#include <ranges>
+
+#include "benchmark/benchmark.h"
+
+namespace {
+void run_sizes(auto benchmark) {
+  benchmark->Arg(0)
+      ->Arg(1)
+      ->Arg(2)
+      ->Arg(64)
+      ->Arg(512)
+      ->Arg(1024)
+      ->Arg(4000)
+      ->Arg(4096)
+      ->Arg(5500)
+      ->Arg(64000)
+      ->Arg(65536)
+      ->Arg(70000);
+}
+
+void BM_join_view_in_vectors(benchmark::State& state) {
+  auto size = state.range(0);
+  std::vector<std::vector<int>> input(size, std::vector<int>(32));
+  std::ranges::fill(input | std::views::join, 10);
+  std::vector<int> output;
+  output.resize(size * 32);
+
+  for (auto _ : state) {
+    benchmark::DoNotOptimize(input);
+    benchmark::DoNotOptimize(output);
+    std::ranges::copy(input | std::views::join, output.begin());
+  }
+}
+BENCHMARK(BM_join_view_in_vectors)->Apply(run_sizes);
+
+void BM_join_view_out_vectors(benchmark::State& state) {
+  auto size = state.range(0);
+  std::vector<std::vector<int>> output(size, std::vector<int>(32));
+  std::vector<int> input;
+  input.resize(size * 32);
+  std::ranges::fill(input, 10);
+
+  for (auto _ : state) {
+    benchmark::DoNotOptimize(output);
+    benchmark::DoNotOptimize(input);
+    std::ranges::copy(input, (output | std::views::join).begin());
+  }
+}
+BENCHMARK(BM_join_view_out_vectors)->Apply(run_sizes);
+
+void BM_join_view_deques(benchmark::State& state) {
+  auto size = state.range(0);
+  std::deque<std::deque<int>> deque(size, std::deque<int>(32));
+  std::ranges::fill(deque | std::views::join, 10);
+  std::vector<int> output;
+  output.resize(size * 32);
+
+  for (auto _ : state) {
+    benchmark::DoNotOptimize(deque);
+    benchmark::DoNotOptimize(output);
+    std::ranges::copy(deque | std::views::join, output.begin());
+  }
+}
+BENCHMARK(BM_join_view_deques)->Apply(run_sizes);
+} // namespace
+
+BENCHMARK_MAIN();

benchmarks/monotonic_buffer.bench.cpp

@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <list>
+#include <memory_resource>
+
+#include "benchmark/benchmark.h"
+
+static void bm_list(benchmark::State& state) {
+  char buffer[16384];
+  std::pmr::monotonic_buffer_resource resource(buffer, sizeof(buffer));
+  for (auto _ : state) {
+    std::pmr::list<int> l(&resource);
+    for (size_t i = 0; i != state.range(); ++i) {
+      l.push_back(1);
+      benchmark::DoNotOptimize(l);
+    }
+    resource.release();
+  }
+}
+BENCHMARK(bm_list)->Range(1, 2048);
+
+BENCHMARK_MAIN();

cmake/Modules/HandleLibCXXABI.cmake

@@ -63,22 +63,24 @@ function(import_private_headers target include_dirs headers)
   target_include_directories(${target} INTERFACE "${LIBCXX_BINARY_DIR}/private-abi-headers")
 endfunction()
 
-# This function creates an imported library named <target> of the given <kind> (SHARED|STATIC).
+# This function creates an imported static library named <target>.
 # It imports a library named <name> searched at the given <path>.
-function(imported_library target kind path name)
+function(import_static_library target path name)
-  add_library(${target} ${kind} IMPORTED GLOBAL)
+  add_library(${target} STATIC IMPORTED GLOBAL)
-  set(libnames "${CMAKE_${kind}_LIBRARY_PREFIX}${name}${CMAKE_${kind}_LIBRARY_SUFFIX}")
-  # Make sure we find .tbd files on macOS
-  if (kind STREQUAL "SHARED")
-    list(APPEND libnames "${CMAKE_${kind}_LIBRARY_PREFIX}${name}.tbd")
-  endif()
   find_library(file
-    NAMES ${libnames}
+    NAMES "${CMAKE_STATIC_LIBRARY_PREFIX}${name}${CMAKE_STATIC_LIBRARY_SUFFIX}"
     PATHS "${path}"
     NO_CACHE)
   set_target_properties(${target} PROPERTIES IMPORTED_LOCATION "${file}")
 endfunction()
 
+# This function creates an imported shared (interface) library named <target>
+# for the given library <name>.
+function(import_shared_library target name)
+  add_library(${target} INTERFACE IMPORTED GLOBAL)
+  set_target_properties(${target} PROPERTIES IMPORTED_LIBNAME "${name}")
+endfunction()
+
 # Link against a system-provided libstdc++
 if ("${LIBCXX_CXX_ABI}" STREQUAL "libstdc++")
   add_library(libcxx-abi-headers INTERFACE)
@@ -86,10 +88,10 @@ if ("${LIBCXX_CXX_ABI}" STREQUAL "libstdc++")
     "cxxabi.h;bits/c++config.h;bits/os_defines.h;bits/cpu_defines.h;bits/cxxabi_tweaks.h;bits/cxxabi_forced.h")
   target_compile_definitions(libcxx-abi-headers INTERFACE "-DLIBSTDCXX" "-D__GLIBCXX__")
 
-  imported_library(libcxx-abi-shared SHARED "${LIBCXX_CXX_ABI_LIBRARY_PATH}" stdc++)
+  import_shared_library(libcxx-abi-shared stdc++)
   target_link_libraries(libcxx-abi-shared INTERFACE libcxx-abi-headers)
 
-  imported_library(libcxx-abi-static STATIC "${LIBCXX_CXX_ABI_LIBRARY_PATH}" stdc++)
+  import_static_library(libcxx-abi-static "${LIBCXX_CXX_ABI_LIBRARY_PATH}" stdc++)
   target_link_libraries(libcxx-abi-static INTERFACE libcxx-abi-headers)
 
 # Link against a system-provided libsupc++
@@ -99,10 +101,10 @@ elseif ("${LIBCXX_CXX_ABI}" STREQUAL "libsupc++")
     "cxxabi.h;bits/c++config.h;bits/os_defines.h;bits/cpu_defines.h;bits/cxxabi_tweaks.h;bits/cxxabi_forced.h")
   target_compile_definitions(libcxx-abi-headers INTERFACE "-D__GLIBCXX__")
 
-  imported_library(libcxx-abi-shared SHARED "${LIBCXX_CXX_ABI_LIBRARY_PATH}" supc++)
+  import_shared_library(libcxx-abi-shared supc++)
   target_link_libraries(libcxx-abi-shared INTERFACE libcxx-abi-headers)
 
-  imported_library(libcxx-abi-static STATIC "${LIBCXX_CXX_ABI_LIBRARY_PATH}" supc++)
+  import_static_library(libcxx-abi-static "${LIBCXX_CXX_ABI_LIBRARY_PATH}" supc++)
   target_link_libraries(libcxx-abi-static INTERFACE libcxx-abi-headers)
 
 # Link against the in-tree libc++abi
@@ -133,10 +135,10 @@ elseif ("${LIBCXX_CXX_ABI}" STREQUAL "system-libcxxabi")
   import_private_headers(libcxx-abi-headers "${LIBCXX_CXX_ABI_INCLUDE_PATHS}" "cxxabi.h;__cxxabi_config.h")
   target_compile_definitions(libcxx-abi-headers INTERFACE "-DLIBCXX_BUILDING_LIBCXXABI")
 
-  imported_library(libcxx-abi-shared SHARED "${LIBCXX_CXX_ABI_LIBRARY_PATH}" c++abi)
+  import_shared_library(libcxx-abi-shared c++abi)
   target_link_libraries(libcxx-abi-shared INTERFACE libcxx-abi-headers)
 
-  imported_library(libcxx-abi-static STATIC "${LIBCXX_CXX_ABI_LIBRARY_PATH}" c++abi)
+  import_static_library(libcxx-abi-static "${LIBCXX_CXX_ABI_LIBRARY_PATH}" c++abi)
   target_link_libraries(libcxx-abi-static INTERFACE libcxx-abi-headers)
 
 # Link against a system-provided libcxxrt
@@ -154,10 +156,10 @@ elseif ("${LIBCXX_CXX_ABI}" STREQUAL "libcxxrt")
     "cxxabi.h;unwind.h;unwind-arm.h;unwind-itanium.h")
   target_compile_definitions(libcxx-abi-headers INTERFACE "-DLIBCXXRT")
 
-  imported_library(libcxx-abi-shared SHARED "${LIBCXX_CXX_ABI_LIBRARY_PATH}" cxxrt)
+  import_shared_library(libcxx-abi-shared cxxrt)
   target_link_libraries(libcxx-abi-shared INTERFACE libcxx-abi-headers)
 
-  imported_library(libcxx-abi-static STATIC "${LIBCXX_CXX_ABI_LIBRARY_PATH}" cxxrt)
+  import_static_library(libcxx-abi-static "${LIBCXX_CXX_ABI_LIBRARY_PATH}" cxxrt)
   target_link_libraries(libcxx-abi-static INTERFACE libcxx-abi-headers)
 
 # Link against a system-provided vcruntime

cmake/caches/AndroidNDK.cmake

@@ -0,0 +1,38 @@
+# Use CMake's built-in Android NDK support. This will also use the compiler from
+# the NDK.
+
+set(CMAKE_ANDROID_NDK "$ENV{ANDROID_NDK_HOME}" CACHE STRING "")
+set(CMAKE_SYSTEM_NAME Android CACHE STRING "")
+
+# Default architecture and Android API level. Selecting a much earlier API may
+# require adding a toybox build to the device's PATH.
+set(CMAKE_ANDROID_ARCH_ABI "x86_64" CACHE STRING "")
+set(CMAKE_SYSTEM_VERSION 21 CACHE STRING "")
+
+# Rename libc++.so to libc++_shared.so to ensure that it doesn't interfere with
+# the libc++.so on the device, then use LD_LIBRARY_PATH to point test
+# executables at the library. Also rename the static library for consistency
+# and to help prevent -lc++ from linking libc++.a.
+set(LIBCXX_SHARED_OUTPUT_NAME c++_shared CACHE STRING "")
+set(LIBCXX_STATIC_OUTPUT_NAME c++_static CACHE STRING "")
+
+# Use a different C++ namespace for the NDK libc++_shared.so to help avoid
+# symbol conflicts on older versions of Android.
+set(LIBCXX_ABI_NAMESPACE __test CACHE STRING "")
+
+# The build doesn't add a suffix to an Android shared object filename, so it
+# writes both a libc++_shared.so ELF file and a libc++_shared.so linker script
+# to the same output path (the script clobbers the binary). Turn off the linker
+# script.
+set(LIBCXX_ENABLE_ABI_LINKER_SCRIPT OFF CACHE BOOL "")
+
+set(LIBCXX_STATICALLY_LINK_ABI_IN_SHARED_LIBRARY ON CACHE BOOL "")
+set(LIBCXXABI_ENABLE_SHARED OFF CACHE BOOL "")
+
+# Use adb to push tests to a locally-connected device (e.g. emulator) and run them.
+set(LIBCXX_TEST_CONFIG "llvm-libc++-android-ndk.cfg.in" CACHE STRING "")
+set(LIBCXXABI_TEST_CONFIG "llvm-libc++abi-android-ndk.cfg.in" CACHE STRING "")
+
+# CMAKE_SOURCE_DIR refers to the "<monorepo>/runtimes" directory.
+set(LIBCXX_EXECUTOR "${CMAKE_SOURCE_DIR}/../libcxx/utils/adb_run.py" CACHE STRING "")
+set(LIBCXXABI_EXECUTOR "${LIBCXX_EXECUTOR}" CACHE STRING "")

cmake/caches/Generic-no-fstream.cmake

@@ -0,0 +1 @@
+set(LIBCXX_ENABLE_FSTREAM OFF CACHE BOOL "")

cmake/caches/Generic-no-transitive-includes.cmake

@@ -1,2 +0,0 @@
-set(LIBCXX_TEST_PARAMS "enable_transitive_includes=False" CACHE STRING "")
-set(LIBCXXABI_TEST_PARAMS "${LIBCXX_TEST_PARAMS}" CACHE STRING "")

cmake/caches/MinGW.cmake

@@ -8,8 +8,6 @@ set(LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
 set(LIBCXXABI_USE_COMPILER_RT ON CACHE BOOL "")
 set(LIBUNWIND_USE_COMPILER_RT ON CACHE BOOL "")
 
-set(LIBCXX_TARGET_INFO "libcxx.test.target_info.MingwLocalTI" CACHE STRING "")
-
 # Without this flag, 'long double' (which is 80 bit on x86 mingw, but
 # 64 bit in MSVC) isn't handled correctly in printf.
 set(LIBCXX_EXTRA_SITE_DEFINES "__USE_MINGW_ANSI_STDIO=1" CACHE STRING "")

cmake/caches/s390x-ibm-zos-ascii.cmake

@@ -0,0 +1,22 @@
+# Common
+set(CMAKE_BUILD_TYPE Release CACHE STRING "")
+
+set(LIBCXX_ENABLE_ABI_LINKER_SCRIPT OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_SHARED ON CACHE BOOL "")
+set(LIBCXX_ENABLE_STATIC OFF CACHE BOOL "")
+set(LIBCXX_INCLUDE_TESTS OFF CACHE BOOL "")
+set(LIBCXX_INSTALL_HEADERS OFF CACHE BOOL "")
+set(LIBCXX_INCLUDE_BENCHMARKS OFF CACHE BOOL "")
+
+set(LIBCXXABI_ENABLE_SHARED OFF CACHE BOOL "")
+set(LIBCXXABI_ENABLE_STATIC OFF CACHE BOOL "")
+set(LIBCXXABI_INCLUDE_TESTS OFF CACHE BOOL "")
+
+# Target Specific
+set(LIBCXX_DLL_NAME CRTEQCXS CACHE STRING "")
+set(LIBCXX_SHARED_OUTPUT_NAME "c++_a" CACHE STRING
+    "Output name for the shared libc++ runtime library.")
+set(LIBCXX_CXX_ABI system-libcxxabi CACHE STRING "")
+
+set(LIBCXX_ADDITIONAL_COMPILE_FLAGS "-fzos-le-char-mode=ascii" CACHE STRING "")
+set(LIBCXX_ADDITIONAL_LIBRARIES "-L../s390x-ibm-zos/lib -Wl,../s390x-ibm-zos/lib/libunwind.x" CACHE STRING "")

cmake/caches/s390x-ibm-zos.cmake

@@ -0,0 +1,17 @@
+set(CMAKE_BUILD_TYPE Release CACHE STRING "")
+
+# Common
+set(LIBCXX_ENABLE_ABI_LINKER_SCRIPT OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_SHARED ON CACHE BOOL "")
+set(LIBCXX_ENABLE_STATIC OFF CACHE BOOL "")
+set(LIBCXX_INCLUDE_TESTS ON CACHE BOOL "")
+
+set(LIBCXXABI_ENABLE_SHARED ON CACHE BOOL "")
+set(LIBCXXABI_ENABLE_STATIC OFF CACHE BOOL "")
+set(LIBCXXABI_INCLUDE_TESTS ON CACHE BOOL "")
+
+# Target Specific
+set(LIBCXX_DLL_NAME CRTEQCXE CACHE STRING "")
+
+set(LIBCXXABI_DLL_NAME CRTEQCXA CACHE STRING "")
+set(LIBCXXABI_ADDITIONAL_LIBRARIES "-Wl,lib/libunwind.x" CACHE STRING "")

cmake/caches/s390x32-ibm-zos-ascii.cmake

@@ -0,0 +1,22 @@
+# Common
+set(CMAKE_BUILD_TYPE Release CACHE STRING "")
+
+set(LIBCXX_ENABLE_ABI_LINKER_SCRIPT OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_SHARED ON CACHE BOOL "")
+set(LIBCXX_ENABLE_STATIC OFF CACHE BOOL "")
+set(LIBCXX_INCLUDE_TESTS OFF CACHE BOOL "")
+set(LIBCXX_INSTALL_HEADERS OFF CACHE BOOL "")
+set(LIBCXX_INCLUDE_BENCHMARKS OFF CACHE BOOL "")
+
+set(LIBCXXABI_ENABLE_SHARED OFF CACHE BOOL "")
+set(LIBCXXABI_ENABLE_STATIC OFF CACHE BOOL "")
+set(LIBCXXABI_INCLUDE_TESTS OFF CACHE BOOL "")
+
+# Target Specific
+set(LIBCXX_DLL_NAME CRTEHCXS CACHE STRING "")
+set(LIBCXX_SHARED_OUTPUT_NAME "c++_a" CACHE STRING
+    "Output name for the shared libc++ runtime library.")
+set(LIBCXX_CXX_ABI system-libcxxabi CACHE STRING "")
+
+set(LIBCXX_ADDITIONAL_COMPILE_FLAGS "-fzos-le-char-mode=ascii" CACHE STRING "")
+set(LIBCXX_ADDITIONAL_LIBRARIES "-L../s390x32-ibm-zos/lib -Wl,../s390x32-ibm-zos/lib/libunwind.x" CACHE STRING "")

cmake/caches/s390x32-ibm-zos.cmake

@@ -0,0 +1,18 @@
+# Common
+set(CMAKE_BUILD_TYPE Release CACHE STRING "")
+
+set(LIBCXX_ENABLE_ABI_LINKER_SCRIPT OFF CACHE BOOL "")
+set(LIBCXX_ENABLE_SHARED ON CACHE BOOL "")
+set(LIBCXX_ENABLE_STATIC OFF CACHE BOOL "")
+set(LIBCXX_INCLUDE_TESTS ON CACHE BOOL "")
+
+set(LIBCXXABI_ENABLE_SHARED ON CACHE BOOL "")
+set(LIBCXXABI_ENABLE_STATIC OFF CACHE BOOL "")
+set(LIBCXXABI_INCLUDE_TESTS ON CACHE BOOL "")
+
+# Target Specific
+set(LIBCXX_DLL_NAME CRTEHCXE CACHE STRING "")
+
+set(LIBCXXABI_DLL_NAME CRTEHCXA CACHE STRING "")
+
+set(LIBCXXABI_ADDITIONAL_LIBRARIES "-Wl,lib/libunwind.x" CACHE STRING "")

cmake/config-ix.cmake

@@ -61,7 +61,11 @@ if (CXX_SUPPORTS_NOSTDLIBXX_FLAG OR C_SUPPORTS_NODEFAULTLIBS_FLAG)
     include(HandleCompilerRT)
     find_compiler_rt_library(builtins LIBCXX_BUILTINS_LIBRARY
                              FLAGS ${LIBCXX_COMPILE_FLAGS})
-    list(APPEND CMAKE_REQUIRED_LIBRARIES "${LIBCXX_BUILTINS_LIBRARY}")
+    if (LIBCXX_BUILTINS_LIBRARY)
+      list(APPEND CMAKE_REQUIRED_LIBRARIES "${LIBCXX_BUILTINS_LIBRARY}")
+    else()
+      message(WARNING "Could not find builtins library from libc++")
+    endif()
   elseif (LIBCXX_HAS_GCC_LIB)
     list(APPEND CMAKE_REQUIRED_LIBRARIES gcc)
   elseif (LIBCXX_HAS_GCC_S_LIB)
@@ -94,7 +98,7 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
   set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Werror=unknown-pragmas")
   check_c_source_compiles("
 #pragma comment(lib, \"c\")
-int main() { return 0; }
+int main(void) { return 0; }
 " C_SUPPORTS_COMMENT_LIB_PRAGMA)
   cmake_pop_check_state()
 endif()

docs/AddingNewCIJobs.rst

@@ -46,6 +46,9 @@ it's possible to reproduce CI issues locally with ease, understanding of
 course that some setups may require access to special hardware that is not
 available.
 
+Finally, add your contact info to ``libcxx/utils/ci/BOT_OWNERS.txt``. This will
+be used to contact you when there are issues with the bot.
+
 Testing Your New Job
 ====================
 

docs/BuildingLibcxx.rst

@@ -157,8 +157,7 @@ e.g. the ``mingw-w64-x86_64-clang`` package), together with CMake and ninja.
           -DCMAKE_C_COMPILER=clang                                                    \
           -DCMAKE_CXX_COMPILER=clang++                                                \
           -DLLVM_ENABLE_RUNTIMES=libcxx                                               \
-          -DLIBCXX_CXX_ABI=libstdc++                                                  \
+          -DLIBCXX_CXX_ABI=libstdc++
-          -DLIBCXX_TARGET_INFO="libcxx.test.target_info.MingwLocalTI"
   > ninja -C build cxx
   > cp /mingw64/bin/{libstdc++-6,libgcc_s_seh-1,libwinpthread-1}.dll lib
   > ninja -C build check-cxx
@@ -287,6 +286,24 @@ libc++ specific options
   Path where target-specific libc++ headers should be installed. If a relative
   path, relative to ``CMAKE_INSTALL_PREFIX``.
 
+.. option:: LIBCXX_SHARED_OUTPUT_NAME:STRING
+
+  **Default**: ``c++``
+
+  Output name for the shared libc++ runtime library.
+
+.. option:: LIBCXX_ADDITIONAL_COMPILE_FLAGS:STRING
+
+  **Default**: ``""``
+
+  Additional Compile only flags which can be provided in cache.
+
+.. option:: LIBCXX_ADDITIONAL_LIBRARIES:STRING
+
+  **Default**: ``""``
+
+  Additional libraries libc++ is linked to which can be provided in cache.
+
 
 .. _ABI Library Specific Options:
 
@@ -330,6 +347,18 @@ ABI Library Specific Options
   Build and use the LLVM unwinder. Note: This option can only be used when
   libc++abi is the C++ ABI library used.
 
+.. option:: LIBCXXABI_ADDITIONAL_COMPILE_FLAGS:STRING
+
+  **Default**: ``""``
+
+  Additional Compile only flags which can be provided in cache.
+
+.. option:: LIBCXXABI_ADDITIONAL_LIBRARIES:STRING
+
+  **Default**: ``""``
+
+  Additional libraries libc++abi is linked to which can be provided in cache.
+
 
 libc++ Feature Options
 ----------------------

docs/Contributing.rst

@@ -70,6 +70,8 @@ After branching for an LLVM release:
 2. Update the version number in ``libcxx/docs/conf.py``
 3. Update ``_LIBCPPABI_VERSION`` in ``libcxxabi/include/cxxabi.h``
 4. Update ``_LIBUNWIND_VERSION`` in ``libunwind/include/__libunwind_config.h``
+5. Update the list of supported clang versions in ``libcxx/docs/index.rst``
+6. Remove the in-progress warning from ``libcxx/docs/ReleaseNotes.rst``
 
 Exporting new symbols from the library
 ======================================
@@ -84,5 +86,136 @@ updated list from the failed build at
 Look for the failed build and select the ``artifacts`` tab. There, download the
 abilist for the platform, e.g.:
 
-* C++20 for the Linux platform.
+* C++<version>.
-* MacOS C++20 for the Apple platform.
+* MacOS X86_64 and MacOS arm64 for the Apple platform.
+
+
+Pre-commit CI
+=============
+
+Introduction
+------------
+
+Unlike most parts of the LLVM project, libc++ uses a pre-commit CI [#]_. This
+CI is hosted on `Buildkite <https://buildkite.com/llvm-project/libcxx-ci>`__ and
+the build results are visible in the review on Phabricator. Please make sure
+the CI is green before committing a patch.
+
+The CI tests libc++ for all :ref:`supported platforms <SupportedPlatforms>`.
+The build is started for every diff uploaded to Phabricator. A complete CI run
+takes approximately one hour. To reduce the load:
+
+* The build is cancelled when a new diff for the same revision is uploaded.
+* The build is done in several stages and cancelled when a stage fails.
+
+Typically, the libc++ jobs use a Ubuntu Docker image. This image contains
+recent `nightly builds <https://apt.llvm.org>`__ of all supported versions of
+Clang and the current version of the ``main`` branch. These versions of Clang
+are used to build libc++ and execute its tests.
+
+Unless specified otherwise, the configurations:
+
+* use a nightly build of the ``main`` branch of Clang,
+* execute the tests using the language C++<latest>. This is the version
+  "developed" by the C++ committee.
+
+.. note:: Updating the Clang nightly builds in the Docker image is a manual
+   process and is done at an irregular interval on purpose. When you need to
+   have the latest nightly build to test recent Clang changes, ask in the
+   ``#libcxx`` channel on `LLVM's Discord server
+   <https://discord.gg/jzUbyP26tQ>`__.
+
+.. [#] There's `LLVM Dev Meeting talk <https://www.youtube.com/watch?v=B7gB6van7Bw>`__
+   explaining the benefits of libc++'s pre-commit CI.
+
+Builds
+------
+
+Below is a short description of the most interesting CI builds [#]_:
+
+* ``Format`` runs ``clang-format`` and uploads its output as an artifact. At the
+  moment this build is a soft error and doesn't fail the build.
+* ``Generated output`` runs the ``libcxx-generate-files`` build target and
+  tests for non-ASCII characters in libcxx. Some files are excluded since they
+  use Unicode, mainly tests. The output of these commands are uploaded as
+  artifact.
+* ``Documentation`` builds the documentation. (This is done early in the build
+  process since it is cheap to run.)
+* ``C++<version>`` these build steps test the various C++ versions, making sure all
+  C++ language versions work with the changes made.
+* ``Clang <version>`` these build steps test whether the changes work with all
+  supported Clang versions.
+* ``Booststrapping build`` builds Clang using the revision of the patch and
+  uses that Clang version to build and test libc++. This validates the current
+  Clang and lib++ are compatible.
+
+  When a crash occurs in this build, the crash reproducer is available as an
+  artifact.
+
+* ``Modular build`` tests libc++ using Clang modules [#]_.
+* ``GCC <version>`` tests libc++ with the latest stable GCC version. Only C++11
+  and the latest C++ version are tested.
+* ``Santitizers`` tests libc++ using the Clang sanitizers.
+* ``Parts disabled`` tests libc++ with certain libc++ features disabled.
+* ``Windows`` tests libc++ using MinGW and clang-cl.
+* ``Apple`` tests libc++ on MacOS.
+* ``ARM`` tests libc++ on various Linux ARM platforms.
+* ``AIX`` tests libc++ on AIX.
+
+.. [#] Not all all steps are listed: steps are added and removed when the need
+   arises.
+.. [#] Clang modules are not the same as C++20's modules.
+
+Infrastructure
+--------------
+
+All files of the CI infrastructure are in the directory ``libcxx/utils/ci``.
+Note that quite a bit of this infrastructure is heavily Linux focused. This is
+the platform used by most of libc++'s Buildkite runners and developers.
+
+Dockerfile
+~~~~~~~~~~
+
+Contains the Docker image for the Ubuntu CI. Because the same Docker image is
+used for the ``main`` and ``release`` branch, it should contain no hard-coded
+versions.  It contains the used versions of Clang, various clang-tools,
+GCC, and CMake.
+
+.. note:: This image is pulled from Docker hub and not rebuild when changing
+   the Dockerfile.
+
+run-buildbot-container
+~~~~~~~~~~~~~~~~~~~~~~
+
+Helper script that pulls and runs the Docker image. This image mounts the LLVM
+monorepo at ``/llvm``. This can be used to test with compilers not available on
+your system.
+
+run-buildbot
+~~~~~~~~~~~~
+
+Contains the buld script executed on Buildkite. This script can be executed
+locally or inside ``run-buildbot-container``. The script must be called with
+the target to test. For example, ``run-buildbot generic-cxx20`` will build
+libc++ and test it using C++20.
+
+.. warning:: This script will overwrite the directory ``<llvm-root>/build/XX``
+  where ``XX`` is the target of ``run-buildbot``.
+
+This script contains as little version information as possible. This makes it
+easy to use the script with a different compiler. This allows testing a
+combination not in the libc++ CI. It can be used to add a new (temporary)
+job to the CI. For example, testing the C++17 build with Clang-14 can be done
+like:
+
+.. code-block:: bash
+
+  CC=clang-14 CXX=clang++-14 run-buildbot generic-cxx17
+
+buildkite-pipeline.yml
+~~~~~~~~~~~~~~~~~~~~~~
+
+Contains the jobs executed in the CI. This file contains the version
+information of the jobs being executed. Since this script differs between the
+``main`` and ``release`` branch, both branches can use different compiler
+versions.

docs/DesignDocs/DebugMode.rst

@@ -35,10 +35,23 @@ user-provided comparator to assert that `!comp(y, x)` whenever `comp(x, y)`. Thi
 user-provided comparator to be evaluated up to twice as many times as it would be without the
 debug mode, and causes the library to violate some of the Standard's complexity clauses.
 
-Iterator debugging checks
+Iterator bounds checking
--------------------------
+------------------------
-The library contains various assertions to check the validity of iterators used
+The library provides iterators that ensure they are within the bounds of their container when dereferenced.
-by the program. The following containers and classes support iterator debugging:
+Arithmetic can be performed on these iterators to create out-of-bounds iterators, but they cannot be dereferenced
+when out-of-bounds. The following classes currently provide iterators that have bounds checking:
+
+- ``std::string``
+- ``std::vector<T>`` (``T != bool``)
+- ``std::span``
+
+.. TODO: Add support for iterator bounds checking in ``std::string_view`` and ``std::array``
+
+Iterator ownership checking
+---------------------------
+The library provides iterator ownership checking, which allows catching cases where e.g.
+an iterator from container ``X`` is used as a position to insert into container ``Y``.
+The following classes support iterator ownership checking:
 
 - ``std::string``
 - ``std::vector<T>`` (``T != bool``)
@@ -48,9 +61,6 @@ by the program. The following containers and classes support iterator debugging:
 - ``std::unordered_set``
 - ``std::unordered_multiset``
 
-The remaining containers do not currently support iterator debugging.
-Patches welcome.
-
 Randomizing unspecified behavior
 --------------------------------
 The library supports the randomization of unspecified behavior. For example, randomizing

docs/DesignDocs/HeaderRemovalPolicy.rst

@@ -0,0 +1,61 @@
+=====================
+Header Removal Policy
+=====================
+
+Policy
+------
+
+Libc++ is in the process of splitting larger headers into smaller modular
+headers. This makes it possible to remove these large headers from other
+headers. For example, instead of including ``<algorithm>`` entirely it is
+possible to only include the headers for the algorithms used. When the
+Standard indirectly adds additional header includes, using the smaller headers
+aids reducing the growth of top-level headers. For example ``<atomic>`` uses
+``std::chrono::nanoseconds`` and included ``<chrono>``. In C++20 ``<chrono>``
+requires ``<format>`` which adds several other headers (like ``<string>``,
+``<optional>``, ``<tuple>``) which are not needed in ``<atomic>``.
+
+The benefit of using minimal headers is that the size of libc++'s top-level
+headers becomes smaller. This improves the compilation time when users include
+a top-level header. It also avoids header inclusion cycles and makes it easier
+to port headers to platforms with reduced functionality.
+
+A disadvantage is that users unknowingly depend on these transitive includes.
+Thus removing an include might break their build after upgrading a newer
+version of libc++. For example, ``<algorithm>`` is often forgotten but using
+algorithms will still work through those transitive includes. This problem is
+solved by modules, however in practice most people do not use modules (yet).
+
+To ease the removal of transitive includes in libc++, libc++ will remove
+unnecessary transitive includes in newly supported C++ versions. This means
+that users will have to fix their missing includes in order to upgrade to a
+newer version of the Standard. Libc++ also reserves the right to remove
+transitive includes at any other time, however new language versions will be
+used as a convenient way to perform bulk removals of transitive includes.
+
+For libc++ developers, this means that any transitive include removal must be
+guarded by something of the form:
+
+.. code-block:: cpp
+
+   #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
+   #  include <algorithm>
+   #  include <iterator>
+   #  include <utility>
+   #endif
+
+When users define ``_LIBCPP_REMOVE_TRANSITIVE_INCLUDES``, libc++ will not
+include transitive headers, regardless of the language version. This can be
+useful for users to aid the transition to a newer language version, or by users
+who simply want to make sure they include what they use in their code.
+
+
+Rationale
+---------
+
+Removing headers is not only an issue for software developers, but also for
+vendors. When a vendor updates libc++ several of their upstream packages might
+fail to compile, forcing them to fix these packages or file a bug with their
+upstream packages. Usually upgrading software to a new language standard is
+done explicitly by software developers. This means they most likely will
+discover and fix the missing includes, lessening the burden for the vendors.

docs/DesignDocs/NoexceptPolicy.rst

@@ -1,9 +1,9 @@
-====================
+===================
 ``noexcept`` Policy
-====================
+===================
 
 Extended applications of ``noexcept``
-------------------------------------------
+-------------------------------------
 
 As of version 13 libc++ may mark functions that do not throw (i.e.,
 "Throws: Nothing") as ``noexcept``. This has two primary consequences:

docs/FeatureTestMacroTable.rst

@@ -126,7 +126,7 @@ Status
     ------------------------------------------------- -----------------
     ``__cpp_lib_math_special_functions``              *unimplemented*
     ------------------------------------------------- -----------------
-    ``__cpp_lib_memory_resource``                     *unimplemented*
+    ``__cpp_lib_memory_resource``                     ``201603L``
     ------------------------------------------------- -----------------
     ``__cpp_lib_node_extract``                        ``201606L``
     ------------------------------------------------- -----------------
@@ -202,7 +202,7 @@ Status
     ------------------------------------------------- -----------------
     ``__cpp_lib_constexpr_algorithms``                ``201806L``
     ------------------------------------------------- -----------------
-    ``__cpp_lib_constexpr_complex``                   *unimplemented*
+    ``__cpp_lib_constexpr_complex``                   ``201711L``
     ------------------------------------------------- -----------------
     ``__cpp_lib_constexpr_dynamic_alloc``             ``201907L``
     ------------------------------------------------- -----------------
@@ -222,7 +222,7 @@ Status
     ------------------------------------------------- -----------------
     ``__cpp_lib_constexpr_utility``                   ``201811L``
     ------------------------------------------------- -----------------
-    ``__cpp_lib_constexpr_vector``                    *unimplemented*
+    ``__cpp_lib_constexpr_vector``                    ``201907L``
     ------------------------------------------------- -----------------
     ``__cpp_lib_coroutine``                           ``201902L``
     ------------------------------------------------- -----------------
@@ -234,7 +234,7 @@ Status
     ------------------------------------------------- -----------------
     ``__cpp_lib_execution``                           *unimplemented*
     ------------------------------------------------- -----------------
-    ``__cpp_lib_format``                              ``202106L``
+    ``__cpp_lib_format``                              *unimplemented*
     ------------------------------------------------- -----------------
     ``__cpp_lib_generic_unordered_lookup``            ``201811L``
     ------------------------------------------------- -----------------
@@ -260,9 +260,9 @@ Status
     ------------------------------------------------- -----------------
     ``__cpp_lib_math_constants``                      ``201907L``
     ------------------------------------------------- -----------------
-    ``__cpp_lib_polymorphic_allocator``               *unimplemented*
+    ``__cpp_lib_polymorphic_allocator``               ``201902L``
     ------------------------------------------------- -----------------
-    ``__cpp_lib_ranges``                              *unimplemented*
+    ``__cpp_lib_ranges``                              ``202106L``
     ------------------------------------------------- -----------------
     ``__cpp_lib_remove_cvref``                        ``201711L``
     ------------------------------------------------- -----------------
@@ -274,7 +274,7 @@ Status
     ------------------------------------------------- -----------------
     ``__cpp_lib_smart_ptr_for_overwrite``             *unimplemented*
     ------------------------------------------------- -----------------
-    ``__cpp_lib_source_location``                     *unimplemented*
+    ``__cpp_lib_source_location``                     ``201907L``
     ------------------------------------------------- -----------------
     ``__cpp_lib_span``                                ``202002L``
     ------------------------------------------------- -----------------
@@ -308,10 +308,20 @@ Status
     ------------------------------------------------- -----------------
     ``__cpp_lib_byteswap``                            ``202110L``
     ------------------------------------------------- -----------------
+    ``__cpp_lib_constexpr_bitset``                    ``202207L``
+    ------------------------------------------------- -----------------
+    ``__cpp_lib_constexpr_charconv``                  ``202207L``
+    ------------------------------------------------- -----------------
     ``__cpp_lib_constexpr_cmath``                     *unimplemented*
     ------------------------------------------------- -----------------
+    ``__cpp_lib_constexpr_memory``                    ``202202L``
+    ------------------------------------------------- -----------------
     ``__cpp_lib_constexpr_typeinfo``                  *unimplemented*
     ------------------------------------------------- -----------------
+    ``__cpp_lib_expected``                            ``202202L``
+    ------------------------------------------------- -----------------
+    ``__cpp_lib_forward_like``                        ``202207L``
+    ------------------------------------------------- -----------------
     ``__cpp_lib_invoke_r``                            *unimplemented*
     ------------------------------------------------- -----------------
     ``__cpp_lib_is_scoped_enum``                      ``202011L``

docs/Helpers/Styles.rst

@@ -21,6 +21,8 @@
         .format { background-color: #FFE4B5; }
         .ranges { background-color: #7FFFD4; }
         .spaceship { background-color: #B0E0E6; }
+        .fc { background-color: #8EAF63; white-space:nowrap; }
+        .concurrency { background-color: #909090; white-space:nowrap; }
       </style>
 
 .. role:: notstarted
@@ -41,11 +43,15 @@
 .. role:: format
 .. role:: ranges
 .. role:: spaceship
+.. role:: fc
+.. role:: concurrency
 
 .. |chrono| replace:: :chrono:`chrono`
 .. |format| replace:: :format:`format`
 .. |ranges| replace:: :ranges:`ranges`
 .. |spaceship| replace:: :spaceship:`spaceship`
+.. |flat_containers| replace:: :fc:`flat containers`
+.. |concurrency TS| replace:: :concurrency:`concurrency TS`
 
 .. |sect| unicode:: U+00A7
 .. |hellip| unicode:: U+2026

docs/ReleaseNotes.rst

@@ -1,5 +1,5 @@
 =========================================
-Libc++ 15.0.0 (In-Progress) Release Notes
+Libc++ 17.0.0 (In-Progress) Release Notes
 =========================================
 
 .. contents::
@@ -10,7 +10,7 @@ Written by the `Libc++ Team <https://libcxx.llvm.org>`_
 
 .. warning::
 
-   These are in-progress notes for the upcoming libc++ 15 release.
+   These are in-progress notes for the upcoming libc++ 17 release.
    Release notes for previous releases can be found on
    `the Download Page <https://releases.llvm.org/download.html>`_.
 
@@ -18,7 +18,7 @@ Introduction
 ============
 
 This document contains the release notes for the libc++ C++ Standard Library,
-part of the LLVM Compiler Infrastructure, release 15.0.0. Here we describe the
+part of the LLVM Compiler Infrastructure, release 17.0.0. Here we describe the
 status of libc++ in some detail, including major improvements from the previous
 release and new feature work. For the general LLVM release notes, see `the LLVM
 documentation <https://llvm.org/docs/ReleaseNotes.html>`_. All LLVM releases may
@@ -32,238 +32,30 @@ main Libc++ web page, this document applies to the *next* release, not
 the current one. To see the release notes for a specific release, please
 see the `releases page <https://llvm.org/releases/>`_.
 
-What's New in Libc++ 15.0.0?
+What's New in Libc++ 17.0.0?
 ============================
 
-The main focus of the libc++ team has been to implement new C++20 and C++23
-features.
-
-The C++20 ``format`` library is feature complete, but not all Standard LWG
-issues have been addressed. Since it is expected that at least one of these
-issues will cause an ABI break the ``format`` library is considered
-experimental.
-
-The C++20 ``ranges`` library has progressed a lot since the last release and is
-almost complete. The ``ranges`` library is considered experimental.
-
-
 Implemented Papers
 ------------------
 
-- P1004R2 - Making ``std::vector`` constexpr
-- P0627R6 - Function to mark unreachable code
-- P1165R1 - Make stateful allocator propagation more consistent for ``operator+(basic_string)``
-- P0674R1 - Support arrays in ``make_shared`` and ``allocate_shared``
-- P0980R1 - Making ``std::string`` constexpr
-- P2216R3 - ``std::format`` improvements
-- P0174R2 - Deprecating Vestigial Library Parts in C++17
-- N4190 - Removing ``auto_ptr``, ``random_shuffle()``, And Old ``<functional>`` Stuff
-- P0154R1 - Hardware inference size
-- P0618R0 - Deprecating ``<codecvt>``
-- P2418R2 - Add support for ``std::generator``-like types to ``std::format``
-- LWG3659 - Consider ``ATOMIC_FLAG_INIT`` undeprecation
-- P1423R3 - ``char8_t`` backward compatibility remediation
-
-- Marked the following papers as "Complete" (note that some of those might have
-  been implemented in a previous release but not marked as such):
-
-    - P1207R4 - Movability of Single-pass Iterators
-    - P1474R1 - Helpful pointers for ``ContiguousIterator``
-    - P1522R1 - Iterator Difference Type and Integer Overflow
-    - P1523R1 - Views and Size Types
-    - P1456R1 - Move-only views
-    - P1870R1 - ``forwarding-range`` is too subtle
-    - P1878R1 - Constraining Readable Types
-    - P1970R2 - Consistency for ``size()`` functions: Add ``ranges::ssize``
-    - P1983R0 - Wording for GB301, US296, US292, US291, and US283
-
 Improvements and New Features
 -----------------------------
 
-- ``std::pop_heap`` now uses an algorithm known as "bottom-up heapsort" or
-  "heapsort with bounce" to reduce the number of comparisons, and rearranges
-  elements using move-assignment instead of ``std::swap``.
-
-- Libc++ now supports a variety of assertions that can be turned on to help catch
-  undefined behavior in user code. This new support is now separate from the old
-  (and incomplete) Debug Mode. Vendors can select whether the library they ship
-  should include assertions or not by default. For details, see
-  :ref:`the documentation <assertions-mode>` about this new feature.
-
-- Clang now implements the ``-fexperimental-library`` flag. This flag can be used to
-  enable experimental library features such as TSes and other in-progress work like
-  ``<ranges>`` and ``<format>``. Using this flag makes it unnecessary to manually link
-  against ``libc++experimental.a`` -- just use ``-fexperimental-library`` and the
-  compiler will do what's needed to make experimental features work. However, be
-  aware that experimental features are not stable!
-
-- The implementation of the function ``std::to_chars`` for integral types using
-  base 10 has moved from the dylib to the header. This means the function no
-  longer has a minimum deployment target.
-
-- The performance for ``std::to_chars``, for integral types using base 2, 8,
-  10, or 16 has been improved.
-
-- The functions ``std::from_chars`` and ``std::to_chars`` now have 128-bit integral
-  support.
-
-- The format functions (``std::format``, ``std::format_to``, ``std::format_to_n``, and
-  ``std::formatted_size``) now validate the format string at compile time.
-  When the format string is invalid this will make the code ill-formed instead
-  of throwing an exception at run-time.  (This does not affect the ``v``
-  functions.)
-
-- All format functions in ``<format>`` allow the usage of non-copyable types as
-  argument for the formatting functions. This change causes bit fields to become
-  invalid arguments for the formatting functions.
-
-- The ``_LIBCPP_ENABLE_CXX20_REMOVED_ALLOCATOR_VOID_SPECIALIZATION`` macro has been added to allow
-  re-enabling the ``allocator<void>`` specialization. When used in conjunction with
-  ``_LIBCPP_ENABLE_CXX20_REMOVED_ALLOCATOR_MEMBERS``, this ensures that the members of
-  ``allocator<void>`` removed in C++20 can be accessed.
-
-- ``boyer_moore_searcher`` and ``boyer_moore_horspool_searcher`` have been implemented.
-
-- ``vector<bool>::const_reference``, ``vector<bool>::const_iterator::reference``
-  and ``bitset::const_reference`` are now aliases for `bool` in the unstable ABI,
-  which improves libc++'s conformance to the Standard.
-
 Deprecations and Removals
 -------------------------
 
-- The header ``<experimental/filesystem>`` has been removed. Instead, use
-  ``<filesystem>`` header. The associated macro
-  ``_LIBCPP_DEPRECATED_EXPERIMENTAL_FILESYSTEM`` has been removed too.
-
-- The C++14 function ``std::quoted(const char*)`` is no longer supported in
-  C++03 or C++11 modes.
-
-- Setting a custom debug handler with ``std::__libcpp_debug_function`` is not
-  supported anymore. Please migrate to using the new support for
-  :ref:`assertions <assertions-mode>` instead.
-
-- ``std::function`` has been removed in C++03. If you are using it, please remove usages
-  or upgrade to C++11 or later. It is possible to re-enable ``std::function`` in C++03 by defining
-  ``_LIBCPP_ENABLE_CXX03_FUNCTION``. This option will be removed in LLVM 16.
-
-- ``unary_function`` and ``binary_function`` are no longer available in C++17 and C++20.
-  They can be re-enabled by defining ``_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION``.
-  They are also marked as ``[[deprecated]]`` in C++11 and later. To disable deprecation warnings
-  you have to define ``_LIBCPP_DISABLE_DEPRECATION_WARNINGS``. Note that this disables
-  all deprecation warnings.
-
-- The contents of ``<codecvt>``, ``wstring_convert`` and ``wbuffer_convert`` have been marked as deprecated.
-  To disable deprecation warnings you have to define ``_LIBCPP_DISABLE_DEPRECATION_WARNINGS``. Note that this
-  disables all deprecation warnings.
-
-- The ``_LIBCPP_DISABLE_EXTERN_TEMPLATE`` macro is not honored anymore when defined by
-  users of libc++. Instead, users not wishing to take a dependency on libc++ should link
-  against the static version of libc++, which will result in no dependency being
-  taken against the shared library.
-
-- The ``_LIBCPP_ABI_UNSTABLE`` macro has been removed in favour of setting
-  ``_LIBCPP_ABI_VERSION=2``. This should not have any impact on users because
-  they were not supposed to set ``_LIBCPP_ABI_UNSTABLE`` manually, however we
-  still feel that it is worth mentioning in the release notes in case some users
-  had been doing it.
-
-- The integer distributions ``binomial_distribution``, ``discrete_distribution``,
-  ``geometric_distribution``, ``negative_binomial_distribution``, ``poisson_distribution``,
-  and ``uniform_int_distribution`` now conform to the Standard by rejecting
-  template parameter types other than ``short``, ``int``, ``long``, ``long long``,
-  and the unsigned versions thereof. As an extension, ``int8_t``, ``__int128_t`` and
-  their unsigned versions are supported too. In particular, instantiating these
-  distributions with non-integer types like ``bool`` and ``char`` will not compile
-  anymore.
-
 Upcoming Deprecations and Removals
 ----------------------------------
 
-- The ``_LIBCPP_DEBUG`` macro is not supported anymore. It will be honoured until
+- The ``_LIBCPP_AVAILABILITY_CUSTOM_VERBOSE_ABORT_PROVIDED`` macro will not be honored anymore in LLVM 18.
-  LLVM 16, and then it will be an error to define that macro. To enable basic
+  Please see the updated documentation about the safe libc++ mode and in particular the ``_LIBCPP_VERBOSE_ABORT``
-  assertions (previously ``_LIBCPP_DEBUG=0``), please use ``_LIBCPP_ENABLE_ASSERTIONS=1``.
+  macro for details.
-  To enable the debug mode (previously ``_LIBCPP_DEBUG=1|2``), please ensure that
-  the library has been built with support for the debug mode, and it will be
-  enabled automatically (no need to define ``_LIBCPP_DEBUG``).
 
-- The experimental versions of ``boyer_moore_searcher`` and ``boyer_moore_horspool_searcher``
+API Changes
-  will be removed in LLVM 17. You can disable the deprecation warnings by defining
+-----------
-  ``_LIBCPP_NO_EXPERIMENTAL_DEPRECATION_WARNING_SEARCHERS``.
-
-- The implementation of the Coroutines TS in ``std::experimental`` will be removed in LLVM 16.
-
-- Libc++ is getting ready to remove unnecessary transitive inclusions. This may
-  break your code in the future. To future-proof your code to these removals,
-  please compile your code with ``_LIBCPP_REMOVE_TRANSITIVE_INCLUDES`` defined
-  and fix any compilation error resulting from missing includes.
 
 ABI Affecting Changes
 ---------------------
 
-- The ``_LIBCPP_ABI_USE_CXX03_NULLPTR_EMULATION`` macro controlling whether we use an
-  emulation for ``std::nullptr_t`` in C++03 mode has been removed. After this change,
-  ``_LIBCPP_ABI_USE_CXX03_NULLPTR_EMULATION`` will not be honoured anymore and there
-  will be no way to opt back into the C++03 emulation of ``std::nullptr_t``.
-
-- On FreeBSD, NetBSD, DragonFlyBSD and Solaris, ``std::random_device`` is now implemented on
-  top of ``arc4random()`` instead of reading from ``/dev/urandom``. Any implementation-defined
-  token used when constructing a ``std::random_device`` will now be ignored instead of
-  interpreted as a file to read entropy from.
-
-- ``std::valarray``'s unary operators ``!``, ``+``, ``~`` and ``-`` now return an expression
-  object instead of a ``valarray``. This was done to fix an issue where any expression involving
-  other ``valarray`` operators and one of these unary operators would end up with a dangling
-  reference. This is a potential ABI break for code that exposes ``std::valarray`` on an ABI
-  boundary, specifically if the return type of an ABI-boundary function is ``auto``-deduced
-  from an expression involving unary operators on ``valarray``. If you are concerned by this,
-  you can audit whether your executable or library exports any function that returns a
-  ``valarray``, and if so ensure that any such function uses ``std::valarray`` directly
-  as a return type instead of relying on the type of ``valarray``-expressions, which is
-  not guaranteed by the Standard anyway.
-
-- By default, the legacy debug mode symbols are not provided with the library anymore. If
-  you are a vendor and need to re-enable them, please use the ``LIBCXX_ENABLE_BACKWARDS_COMPATIBILITY_DEBUG_MODE_SYMBOLS``
-  CMake flag, and contact the libc++ developers as this will be removed in LLVM 16.
-  Furthermore, please note that ``LIBCXX_ENABLE_DEBUG_MODE_SUPPORT`` is not honored anymore.
-
 Build System Changes
 --------------------
-
-- Support for standalone builds have been entirely removed from libc++, libc++abi and
-  libunwind. Please use :ref:`these instructions <build instructions>` for building
-  libc++, libc++abi and/or libunwind.
-
-- The ``{LIBCXX,LIBCXXABI,LIBUNWIND}_TARGET_TRIPLE``, ``{LIBCXX,LIBCXXABI,LIBUNWIND}_SYSROOT`` and
-  ``{LIBCXX,LIBCXXABI,LIBUNWIND}_GCC_TOOLCHAIN`` CMake variables have been removed. Instead, please
-  use the ``CMAKE_CXX_COMPILER_TARGET``, ``CMAKE_SYSROOT`` and ``CMAKE_CXX_COMPILER_EXTERNAL_TOOLCHAIN``
-  variables provided by CMake.
-
-- When building for Windows, vendors who want to avoid dll-exporting symbols from the static libc++abi
-  library should set ``LIBCXXABI_HERMETIC_STATIC_LIBRARY=ON`` when configuring CMake. The current
-  behavior, which tries to guess the correct dll-export semantics based on whether we're building
-  the libc++ shared library, will be removed in LLVM 16.
-
-- Previously, the C++ ABI library headers would be installed inside ``<prefix>/include/c++/v1``
-  alongside the libc++ headers as part of building libc++. This is not the case anymore -- the
-  ABI library is expected to install its headers where it wants them as part of its own build.
-  Note that no action is required for most users, who build libc++ against libc++abi, since
-  libc++abi already installs its headers in the right location. However, vendors building
-  libc++ against alternate ABI libraries should make sure that their ABI library installs
-  its own headers.
-
-- The legacy testing configuration is now deprecated and will be removed in LLVM 16. For
-  most users, this should not have any impact. However, if you are testing libc++, libc++abi, or
-  libunwind in a configuration or on a platform that used to be supported by the legacy testing
-  configuration and isn't supported by one of the configurations in ``libcxx/test/configs``,
-  ``libcxxabi/test/configs``, or ``libunwind/test/configs``, please move to one of those
-  configurations or define your own.
-
-- MinGW DLL builds of libc++ no longer use dllimport in their headers, which
-  means that the same set of installed headers works for both DLL and static
-  linkage. This means that distributors finally can build both library
-  versions with a single CMake invocation.
-
-- The ``LIBCXX_HIDE_FROM_ABI_PER_TU_BY_DEFAULT`` configuration option has been removed. Indeed,
-  the risk of ODR violations from mixing different versions of libc++ in the same program has
-  been mitigated with a different technique that is simpler and does not have the drawbacks of
-  using internal linkage.

docs/Status/Cxx17Issues.csv

@@ -176,7 +176,7 @@
 "`2720 <https://wg21.link/LWG2720>`__","permissions function incorrectly specified for symlinks","Oulu","|Complete|",""
 "`2721 <https://wg21.link/LWG2721>`__","remove_all has incorrect post conditions","Oulu","|Complete|",""
 "`2723 <https://wg21.link/LWG2723>`__","Do directory_iterator and recursive_directory_iterator become the end iterator upon error?","Oulu","|Complete|",""
-"`2724 <https://wg21.link/LWG2724>`__","The protected virtual member functions of memory_resource should be private","Oulu","",""
+"`2724 <https://wg21.link/LWG2724>`__","The protected virtual member functions of memory_resource should be private","Oulu","|Complete|","16.0"
 "`2725 <https://wg21.link/LWG2725>`__","filesystem::exists(const path&, error_code&) error reporting","Oulu","|Complete|",""
 "`2726 <https://wg21.link/LWG2726>`__","``[recursive_]directory_iterator::increment(error_code&)`` is underspecified","Oulu","|Complete|",""
 "`2727 <https://wg21.link/LWG2727>`__","Parallel algorithms with constexpr specifier","Oulu","",""

docs/Status/Cxx17Papers.csv

@@ -27,7 +27,7 @@
 "","","","","",""
 "`P0024R2 <https://wg21.link/P0024R2>`__","LWG","The Parallelism TS Should be Standardized","Jacksonville","",""
 "`P0226R1 <https://wg21.link/P0226R1>`__","LWG","Mathematical Special Functions for C++17","Jacksonville","",""
-"`P0220R1 <https://wg21.link/P0220R1>`__","LWG","Adopt Library Fundamentals V1 TS Components for C++17","Jacksonville","|In Progress|",""
+"`P0220R1 <https://wg21.link/P0220R1>`__","LWG","Adopt Library Fundamentals V1 TS Components for C++17","Jacksonville","|Complete|","16.0"
 "`P0218R1 <https://wg21.link/P0218R1>`__","LWG","Adopt the File System TS for C++17","Jacksonville","|Complete|","7.0"
 "`P0033R1 <https://wg21.link/P0033R1>`__","LWG","Re-enabling shared_from_this","Jacksonville","|Complete|","3.9"
 "`P0005R4 <https://wg21.link/P0005R4>`__","LWG","Adopt not_fn from Library Fundamentals 2 for C++17","Jacksonville","|Complete|","3.9"

docs/Status/Cxx20.rst

@@ -40,7 +40,7 @@ Paper Status
 
 .. note::
 
-   .. [#note-P0600] P0600: The missing bits in P0600 are in |sect|\ [mem.res.class] and |sect|\ [mem.poly.allocator.class].
+   .. [#note-P0591] P0591: The changes in [mem.poly.allocator.mem] are missing.
    .. [#note-P0645] P0645: The paper is implemented but still marked as an incomplete feature
       (the feature-test macro is not set and the libary is only available when built with ``-fexperimental-library``).
       Not yet implemented LWG-issues will cause API and ABI breakage.
@@ -50,7 +50,6 @@ Paper Status
    .. [#note-P0883.2] P0883: ``ATOMIC_FLAG_INIT`` was marked deprecated in version 14.0, but was undeprecated with the implementation of LWG3659 in version 15.0.
    .. [#note-P2231] P2231: Optional is complete. The changes to variant haven't been implemented yet.
 
-
 .. _issues-status-cxx20:
 
 Library Working Group Issues Status

docs/Status/Cxx20Issues.csv

@@ -9,10 +9,10 @@
 "`2940 <https://wg21.link/LWG2940>`__","``result_of``\  specification also needs a little cleanup","Toronto","|Nothing To Do|",""
 "`2942 <https://wg21.link/LWG2942>`__","LWG 2873's resolution missed ``weak_ptr::owner_before``\ ","Toronto","|Complete|",""
 "`2954 <https://wg21.link/LWG2954>`__","Specialization of the convenience variable templates should be prohibited","Toronto","|Complete|",""
-"`2961 <https://wg21.link/LWG2961>`__","Bad postcondition for ``set_default_resource``\ ","Toronto","",""
+"`2961 <https://wg21.link/LWG2961>`__","Bad postcondition for ``set_default_resource``\ ","Toronto","|Complete|","16.0"
 "`2966 <https://wg21.link/LWG2966>`__","Incomplete resolution of US 74","Toronto","|Nothing To Do|",""
 "`2974 <https://wg21.link/LWG2974>`__","Diagnose out of bounds ``tuple_element/variant_alternative``\ ","Toronto","|Complete|",""
-"","","","",""
+"","","","","",""
 "`2779 <https://wg21.link/LWG2779>`__","[networking.ts] Relax requirements on buffer sequence iterators","Albuquerque","",""
 "`2870 <https://wg21.link/LWG2870>`__","Default value of parameter theta of polar should be dependent","Albuquerque","|Complete|",""
 "`2935 <https://wg21.link/LWG2935>`__","What should create_directories do when p already exists but is not a directory?","Albuquerque","|Nothing To Do|",""
@@ -29,7 +29,7 @@
 "`2972 <https://wg21.link/LWG2972>`__","What is ``is_trivially_destructible_v<int>``\ ?","Albuquerque","|Complete|",""
 "`2976 <https://wg21.link/LWG2976>`__","Dangling uses_allocator specialization for packaged_task","Albuquerque","|Complete|",""
 "`2977 <https://wg21.link/LWG2977>`__","unordered_meow::merge() has incorrect Throws: clause","Albuquerque","|Nothing To Do|",""
-"`2978 <https://wg21.link/LWG2978>`__","Hash support for pmr::string and friends","Albuquerque","",""
+"`2978 <https://wg21.link/LWG2978>`__","Hash support for pmr::string and friends","Albuquerque","|Complete|","16.0"
 "`2979 <https://wg21.link/LWG2979>`__","aligned_union should require complete object types","Albuquerque","|Complete|",""
 "`2980 <https://wg21.link/LWG2980>`__","Cannot compare_exchange empty pointers","Albuquerque","",""
 "`2981 <https://wg21.link/LWG2981>`__","Remove redundant deduction guides from standard library","Albuquerque","|Nothing To Do|",""
@@ -39,7 +39,7 @@
 "`2998 <https://wg21.link/LWG2998>`__","Requirements on function objects passed to {``forward_``,}list-specific algorithms","Albuquerque","|Nothing To Do|",""
 "`3001 <https://wg21.link/LWG3001>`__","weak_ptr::element_type needs remove_extent_t","Albuquerque","|Complete|","14.0"
 "`3024 <https://wg21.link/LWG3024>`__","variant's copies must be deleted instead of disabled via SFINAE","Albuquerque","|Complete|",""
-"","","","",""
+"","","","","",""
 "`2164 <https://wg21.link/LWG2164>`__","What are the semantics of ``vector.emplace(vector.begin(), vector.back())``\ ?","Jacksonville","|Complete|",""
 "`2243 <https://wg21.link/LWG2243>`__","``istream::putback``\  problem","Jacksonville","|Complete|",""
 "`2816 <https://wg21.link/LWG2816>`__","``resize_file``\  has impossible postcondition","Jacksonville","|Nothing To Do|",""
@@ -50,7 +50,7 @@
 "`2969 <https://wg21.link/LWG2969>`__","``polymorphic_allocator::construct()``\  shouldn't pass ``resource()``\ ","Jacksonville","|Complete|",""
 "`2975 <https://wg21.link/LWG2975>`__","Missing case for ``pair``\  construction in scoped and polymorphic allocators","Jacksonville","",""
 "`2989 <https://wg21.link/LWG2989>`__","``path``\ 's stream insertion operator lets you insert everything under the sun","Jacksonville","|Complete|",""
-"`3000 <https://wg21.link/LWG3000>`__","``monotonic_memory_resource::do_is_equal``\  uses ``dynamic_cast``\  unnecessarily","Jacksonville","",""
+"`3000 <https://wg21.link/LWG3000>`__","``monotonic_memory_resource::do_is_equal``\  uses ``dynamic_cast``\  unnecessarily","Jacksonville","|Complete|","16.0"
 "`3002 <https://wg21.link/LWG3002>`__","[networking.ts] ``basic_socket_acceptor::is_open()``\  isn't ``noexcept``\ ","Jacksonville","",""
 "`3004 <https://wg21.link/LWG3004>`__","|sect|\ [string.capacity] and |sect|\ [vector.capacity] should specify time complexity for ``capacity()``\ ","Jacksonville","|Nothing To Do|",""
 "`3005 <https://wg21.link/LWG3005>`__","Destruction order of arrays by ``make_shared/allocate_shared``\  only recommended?","Jacksonville","",""
@@ -74,7 +74,7 @@
 "`3048 <https://wg21.link/LWG3048>`__","``transform_reduce(exec, first1, last1, first2, init)``\  discards execution policy","Jacksonville","",""
 "`3051 <https://wg21.link/LWG3051>`__","Floating point classifications were inadvertently changed in P0175","Jacksonville","|Nothing To Do|",""
 "`3075 <https://wg21.link/LWG3075>`__","``basic_string``\  needs deduction guides from ``basic_string_view``\ ","Jacksonville","|Complete|",""
-"","","","",""
+"","","","","",""
 "`2139 <https://wg21.link/LWG2139>`__","What is a user-defined type?","Rapperswil","",""
 "`2970 <https://wg21.link/LWG2970>`__","Return type of std::visit misspecified","Rapperswil","",""
 "`3058 <https://wg21.link/LWG3058>`__","Parallel adjacent_difference shouldn't require creating temporaries","Rapperswil","",""
@@ -90,7 +90,7 @@
 "`3100 <https://wg21.link/LWG3100>`__","Unnecessary and confusing ""empty span"" wording","Rapperswil","|Nothing To Do|",""
 "`3102 <https://wg21.link/LWG3102>`__","Clarify span iterator and ``const_iterator`` behavior","Rapperswil","|Complete|",""
 "`3104 <https://wg21.link/LWG3104>`__","Fixing duration division","Rapperswil","|Complete|",""
-"","","","",""
+"","","","","",""
 "`2183 <https://wg21.link/LWG2183>`__","Muddled allocator requirements for ``match_results``\  constructors","San Diego","|Complete|",""
 "`2184 <https://wg21.link/LWG2184>`__","Muddled allocator requirements for ``match_results``\  assignments","San Diego","|Complete|",""
 "`2412 <https://wg21.link/LWG2412>`__","``promise::set_value()``\  and ``promise::get_future()``\  should not race","San Diego","",""
@@ -107,7 +107,7 @@
 "`3022 <https://wg21.link/LWG3022>`__","``is_convertible<derived*, base*>``\  may lead to ODR","San Diego","Resolved by 1285R0",""
 "`3025 <https://wg21.link/LWG3025>`__","Map-like container deduction guides should use ``pair<Key, T>``\ , not ``pair<const Key, T>``\ ","San Diego","|Complete|",""
 "`3031 <https://wg21.link/LWG3031>`__","Algorithms and predicates with non-const reference arguments","San Diego","",""
-"`3037 <https://wg21.link/LWG3037>`__","``polymorphic_allocator``\  and incomplete types","San Diego","",""
+"`3037 <https://wg21.link/LWG3037>`__","``polymorphic_allocator``\  and incomplete types","San Diego","|Complete|","16.0"
 "`3038 <https://wg21.link/LWG3038>`__","``polymorphic_allocator::allocate``\  should not allow integer overflow to create vulnerabilities","San Diego","|Complete|","14.0"
 "`3054 <https://wg21.link/LWG3054>`__","``uninitialized_copy``\  appears to not be able to meet its exception-safety guarantee","San Diego","|Nothing To Do|",""
 "`3065 <https://wg21.link/LWG3065>`__","LWG 2989 missed that all ``path``\ 's other operators should be hidden friends as well","San Diego","|Complete|",""
@@ -128,7 +128,7 @@
 "`3148 <https://wg21.link/LWG3148>`__","``<concepts>``\  should be freestanding","San Diego","",""
 "`3153 <https://wg21.link/LWG3153>`__","``Common``\  and ``common_type``\  have too little in common","San Diego","|Complete|","13.0"
 "`3154 <https://wg21.link/LWG3154>`__","``Common``\  and ``CommonReference``\  have a common defect","San Diego","|Nothing To Do|",""
-"","","","",""
+"","","","","",""
 "`3012 <https://wg21.link/LWG3012>`__","``atomic<T>``\  is unimplementable for non-``is_trivially_copy_constructible T``\ ","Kona","",""
 "`3040 <https://wg21.link/LWG3040>`__","``basic_string_view::starts_with``\  *Effects* are incorrect","Kona","|Complete|",""
 "`3077 <https://wg21.link/LWG3077>`__","``(push|emplace)_back``\  should invalidate the ``end``\  iterator","Kona","|Nothing To Do|",""
@@ -142,14 +142,14 @@
 "`3179 <https://wg21.link/LWG3179>`__","``subrange``\  should always model ``Range``\ ","Kona","|Nothing To Do|","","|ranges|"
 "`3180 <https://wg21.link/LWG3180>`__","Inconsistently named return type for ``ranges::minmax_element``\ ","Kona","|Complete|","15.0","|ranges|"
 "`3182 <https://wg21.link/LWG3182>`__","Specification of ``Same``\  could be clearer","Kona","|Complete|","15.0"
-"","","","",""
+"","","","","",""
 "`2899 <https://wg21.link/LWG2899>`__","``is_(nothrow_)move_constructible``\  and ``tuple``\ , ``optional``\  and ``unique_ptr``\ ","Cologne","",""
 "`3055 <https://wg21.link/LWG3055>`__","``path::operator+=(*single-character*)``\  misspecified","Cologne","|Complete|","7.0"
 "`3158 <https://wg21.link/LWG3158>`__","``tuple(allocator_arg_t, const Alloc&)``\  should be conditionally explicit","Cologne","|Complete|","10.0"
 "`3169 <https://wg21.link/LWG3169>`__","``ranges``\  permutation generators discard useful information","Cologne","|Complete|","15.0","|ranges|"
 "`3183 <https://wg21.link/LWG3183>`__","Normative permission to specialize Ranges variable templates","Cologne","|Nothing To Do|","","|ranges|"
 "`3184 <https://wg21.link/LWG3184>`__","Inconsistencies in ``bind_front``\  wording","Cologne","|Complete|","13.0"
-"`3185 <https://wg21.link/LWG3185>`__","Uses-allocator construction functions missing ``constexpr``\  and ``noexcept``\ ","Cologne","",""
+"`3185 <https://wg21.link/LWG3185>`__","Uses-allocator construction functions missing ``constexpr``\  and ``noexcept``\ ","Cologne","|Complete|","16.0"
 "`3186 <https://wg21.link/LWG3186>`__","``ranges``\  removal, partition, and ``partial_sort_copy``\  algorithms discard useful information","Cologne","|Complete|","15.0","|ranges|"
 "`3187 <https://wg21.link/LWG3187>`__","`P0591R4 <https://wg21.link/p0591r4>`__ reverted DR 2586 fixes to ``scoped_allocator_adaptor::construct()``\ ","Cologne","",""
 "`3191 <https://wg21.link/LWG3191>`__","``std::ranges::shuffle``\  synopsis does not match algorithm definition","Cologne","|Complete|","15.0","|ranges|"
@@ -160,13 +160,13 @@
 "`3206 <https://wg21.link/LWG3206>`__","``year_month_day``\  conversion to ``sys_days``\  uses not-existing member function","Cologne","|Complete|",""
 "`3208 <https://wg21.link/LWG3208>`__","``Boolean``\ 's expression requirements are ordered inconsistently","Cologne","|Nothing To Do|",""
 "`3209 <https://wg21.link/LWG3209>`__","Expression in ``year::ok()``\  returns clause is ill-formed","Cologne","|Complete|",""
-"","","","",""
+"","","","","",""
 "`3231 <https://wg21.link/LWG3231>`__","``year_month_day_last::day``\  specification does not cover ``!ok()``\  values","Belfast","|Nothing To Do|",""
 "`3225 <https://wg21.link/LWG3225>`__","``zoned_time``\  converting constructor shall not be ``noexcept``\ ","Belfast","","","|chrono|"
 "`3190 <https://wg21.link/LWG3190>`__","``std::allocator::allocate``\  sometimes returns too little storage","Belfast","|Complete|","14.0"
 "`3218 <https://wg21.link/LWG3218>`__","Modifier for ``%d``\  parse flag does not match POSIX and ``format``\  specification","Belfast","","","|chrono| |format|"
 "`3224 <https://wg21.link/LWG3224>`__","``zoned_time``\  constructor from ``TimeZonePtr``\  does not specify initialization of ``tp_``\ ","Belfast","","","|chrono|"
-"`3230 <https://wg21.link/LWG3230>`__","Format specifier ``%y/%Y``\  is missing locale alternative versions","Belfast","","","|chrono| |format|"
+"`3230 <https://wg21.link/LWG3230>`__","Format specifier ``%y/%Y``\  is missing locale alternative versions","Belfast","|Complete|","16.0","|chrono| |format|"
 "`3232 <https://wg21.link/LWG3232>`__","Inconsistency in ``zoned_time``\  deduction guides","Belfast","","","|chrono|"
 "`3222 <https://wg21.link/LWG3222>`__","P0574R1 introduced preconditions on non-existent parameters","Belfast","",""
 "`3221 <https://wg21.link/LWG3221>`__","Result of ``year_month``\  arithmetic with ``months``\  is ambiguous","Belfast","|Complete|","8.0"
@@ -175,33 +175,33 @@
 "`3253 <https://wg21.link/LWG3253>`__","``basic_syncbuf::basic_syncbuf()``\  should not be explicit","Belfast","",""
 "`3245 <https://wg21.link/LWG3245>`__","Unnecessary restriction on ``'%p'``\  parse specifier","Belfast","","","|chrono|"
 "`3244 <https://wg21.link/LWG3244>`__","Constraints for ``Source``\  in |sect|\ [fs.path.req] insufficiently constrainty","Belfast","",""
-"`3241 <https://wg21.link/LWG3241>`__","``chrono-spec``\  grammar ambiguity in |sect|\ [time.format]","Belfast","","","|chrono| |format|"
+"`3241 <https://wg21.link/LWG3241>`__","``chrono-spec``\  grammar ambiguity in |sect|\ [time.format]","Belfast","|Complete|","16.0","|chrono| |format|"
 "`3257 <https://wg21.link/LWG3257>`__","Missing feature testing macro update from P0858","Belfast","",""
 "`3256 <https://wg21.link/LWG3256>`__","Feature testing macro for ``constexpr``\  algorithms","Belfast","|Complete|","13.0"
-"`3273 <https://wg21.link/LWG3273>`__","Specify ``weekday_indexed``\  to range of ``[0, 7]``\ ","Belfast","","","|chrono|"
+"`3273 <https://wg21.link/LWG3273>`__","Specify ``weekday_indexed``\  to range of ``[0, 7]``\ ","Belfast","|Complete|","16.0","|chrono|"
 "`3070 <https://wg21.link/LWG3070>`__","``path::lexically_relative``\  causes surprising results if a filename can also be a  *root-name*","Belfast","",""
 "`3266 <https://wg21.link/LWG3266>`__","``to_chars(bool)``\  should be deleted","Belfast","|Complete|","14.0"
 "`3272 <https://wg21.link/LWG3272>`__","``%I%p``\  should parse/format ``duration``\  since midnight","Belfast","","","|chrono| |format|"
-"`3259 <https://wg21.link/LWG3259>`__","The definition of *constexpr iterators* should be adjusted","Belfast","|Nothing To Do|","","|ranges|"
+"`3259 <https://wg21.link/LWG3259>`__","The definition of *constexpr iterators* should be adjusted","Belfast","|Nothing To Do|",""
 "`3103 <https://wg21.link/LWG3103>`__","Errors in taking subview of ``span``\  should be ill-formed where possible","Belfast","",""
 "`3274 <https://wg21.link/LWG3274>`__","Missing feature test macro for ``<span>``\ ","Belfast","|Complete|","11.0"
 "`3276 <https://wg21.link/LWG3276>`__","Class ``split_view::outer_iterator::value_type``\  should inherit from ``view_interface``\ ","Belfast","|Complete|","15.0","|ranges|"
 "`3277 <https://wg21.link/LWG3277>`__","Pre-increment on prvalues is not a requirement of ``weakly_incrementable``\ ","Belfast","|Nothing To Do|","","|ranges|"
 "`3149 <https://wg21.link/LWG3149>`__","``DefaultConstructible``\  should require default initialization","Belfast","|Complete|","13.0"
-"","","","",""
+"","","","","",""
 "`1203 <https://wg21.link/LWG1203>`__","More useful rvalue stream insertion","Prague","|Complete|","12.0"
 "`2859 <https://wg21.link/LWG2859>`__","Definition of *reachable* in [ptr.launder] misses pointer arithmetic from pointer-interconvertible object","Prague","",""
 "`3018 <https://wg21.link/LWG3018>`__","``shared_ptr``\  of function type","Prague","",""
 "`3050 <https://wg21.link/LWG3050>`__","Conversion specification problem in ``chrono::duration``\  constructor","Prague","","","|chrono|"
 "`3141 <https://wg21.link/LWG3141>`__","``CopyConstructible``\  doesn't preserve source values","Prague","|Nothing to do|",""
-"`3150 <https://wg21.link/LWG3150>`__","``UniformRandomBitGenerator``\  should validate ``min``\  and ``max``\ ","Prague","|Complete|","13.0"
+"`3150 <https://wg21.link/LWG3150>`__","``UniformRandomBitGenerator``\  should validate ``min``\  and ``max``\ ","Prague","|Complete|","13.0","|ranges|"
 "`3175 <https://wg21.link/LWG3175>`__","The ``CommonReference``\  requirement of concept ``SwappableWith``\  is not satisfied in the example","Prague","|Complete|","13.0"
 "`3194 <https://wg21.link/LWG3194>`__","``ConvertibleTo``\  prose does not match code","Prague","|Complete|","13.0"
 "`3200 <https://wg21.link/LWG3200>`__","``midpoint``\  should not constrain ``T``\  is complete","Prague","|Nothing To Do|",""
 "`3201 <https://wg21.link/LWG3201>`__","``lerp``\  should be marked as ``noexcept``\ ","Prague","|Complete|",""
 "`3226 <https://wg21.link/LWG3226>`__","``zoned_time``\  constructor from ``string_view``\  should accept ``zoned_time<Duration2, TimeZonePtr2>``\ ","Prague","","","|chrono|"
 "`3233 <https://wg21.link/LWG3233>`__","Broken requirements for ``shared_ptr``\  converting constructors","Prague","",""
-"`3237 <https://wg21.link/LWG3237>`__","LWG 3038 and 3190 have inconsistent PRs","Prague","|Complete|","14.0"
+"`3237 <https://wg21.link/LWG3237>`__","LWG 3038 and 3190 have inconsistent PRs","Prague","|Complete|","16.0"
 "`3238 <https://wg21.link/LWG3238>`__","Insufficiently-defined behavior of ``std::function``\  deduction guides","Prague","",""
 "`3242 <https://wg21.link/LWG3242>`__","``std::format``\ : missing rules for ``arg-id``\  in ``width``\  and ``precision``\ ","Prague","|Complete|","Clang 14","|format|"
 "`3243 <https://wg21.link/LWG3243>`__","``std::format``\  and negative zeroes","Prague","|Complete|","14.0","|format|"
@@ -213,10 +213,10 @@
 "`3254 <https://wg21.link/LWG3254>`__","Strike ``stop_token``\ 's ``operator!=``\ ","Prague","",""
 "`3255 <https://wg21.link/LWG3255>`__","``span``\ 's ``array``\  constructor is too strict","Prague","|Complete|",""
 "`3260 <https://wg21.link/LWG3260>`__","``year_month*``\  arithmetic rejects durations convertible to years","Prague","","","|chrono|"
-"`3262 <https://wg21.link/LWG3262>`__","Formatting of negative durations is not specified","Prague","","","|chrono| |format|"
+"`3262 <https://wg21.link/LWG3262>`__","Formatting of negative durations is not specified","Prague","|Complete|","16.0","|chrono| |format|"
 "`3264 <https://wg21.link/LWG3264>`__","``sized_range``\  and ``ranges::size``\  redundantly use ``disable_sized_range``\ ","Prague","|Complete|","15.0","|ranges|"
 "`3269 <https://wg21.link/LWG3269>`__","Parse manipulators do not specify the result of the extraction from stream","Prague","","","|chrono|"
-"`3270 <https://wg21.link/LWG3270>`__","Parsing and formatting ``%j``\  with ``duration``\ s","Prague","","","|chrono| |format|"
+"`3270 <https://wg21.link/LWG3270>`__","Parsing and formatting ``%j``\  with ``duration``\ s","Prague","|Partial|","","|chrono| |format|"
 "`3280 <https://wg21.link/LWG3280>`__","View converting constructors can cause constraint recursion and are unneeded","Prague","|Complete|","15.0","|ranges|"
 "`3281 <https://wg21.link/LWG3281>`__","Conversion from ``*pair-like*``\  types to ``subrange``\  is a silent semantic promotion","Prague","|Complete|","15.0","|ranges|"
 "`3282 <https://wg21.link/LWG3282>`__","``subrange``\  converting constructor should disallow derived to base conversions","Prague","|Complete|","15.0","|ranges|"
@@ -230,21 +230,21 @@
 "`3299 <https://wg21.link/LWG3299>`__","Pointers don't need customized iterator behavior","Prague","|Complete|","15.0","|ranges|"
 "`3300 <https://wg21.link/LWG3300>`__","Non-array ``ssize``\  overload is underconstrained","Prague","|Nothing To Do|",""
 "`3301 <https://wg21.link/LWG3301>`__","``transform_view::iterator``\  has incorrect ``iterator_category``\ ","Prague","|Complete|","15.0","|ranges|"
-"`3302 <https://wg21.link/LWG3302>`__","Range adaptor objects ``keys``\  and ``values``\  are unspecified","Prague","","","|ranges|"
+"`3302 <https://wg21.link/LWG3302>`__","Range adaptor objects ``keys``\  and ``values``\  are unspecified","Prague","|Complete|","16.0","|ranges|"
 "`3303 <https://wg21.link/LWG3303>`__","Bad ""``constexpr``\ "" marker for ``destroy/destroy_n``\ ","Prague","",""
-"`3304 <https://wg21.link/LWG3304>`__","Allocate functions of ``std::polymorphic_allocator``\  should require ``[[nodiscard]]``\ ","Prague","",""
+"`3304 <https://wg21.link/LWG3304>`__","Allocate functions of ``std::polymorphic_allocator``\  should require ``[[nodiscard]]``\ ","Prague","|Complete|","16.0"
 "`3307 <https://wg21.link/LWG3307>`__","``std::allocator<void>().allocate(n)``\ ","Prague","",""
-"`3310 <https://wg21.link/LWG3310>`__","Replace ``SIZE_MAX``\  with ``numeric_limits<size_t>::max()``\ ","Prague","",""
+"`3310 <https://wg21.link/LWG3310>`__","Replace ``SIZE_MAX``\  with ``numeric_limits<size_t>::max()``\ ","Prague","|Complete|","16.0"
 "`3313 <https://wg21.link/LWG3313>`__","``join_view::iterator::operator--``\  is incorrectly constrained","Prague","|Complete|","14.0","|ranges|"
-"`3314 <https://wg21.link/LWG3314>`__","Is stream insertion behavior locale dependent when ``Period::type``\  is ``micro``\ ?","Prague","","","|chrono|"
+"`3314 <https://wg21.link/LWG3314>`__","Is stream insertion behavior locale dependent when ``Period::type``\  is ``micro``\ ?","Prague","|Complete|","16.0","|chrono|"
 "`3315 <https://wg21.link/LWG3315>`__","Correct Allocator Default Behavior","Prague","",""
 "`3316 <https://wg21.link/LWG3316>`__","Correctly define epoch for ``utc_clock``\  / ``utc_timepoint``\ ","Prague","","","|chrono|"
 "`3317 <https://wg21.link/LWG3317>`__","Incorrect ``operator<<``\  for floating-point durations","Prague","","","|chrono|"
 "`3318 <https://wg21.link/LWG3318>`__","Clarify whether clocks can represent time before their epoch","Prague","","","|chrono|"
 "`3319 <https://wg21.link/LWG3319>`__","Properly reference specification of IANA time zone database","Prague","","","|chrono|"
 "`3320 <https://wg21.link/LWG3320>`__","``span::cbegin/cend``\  methods produce different results than ``std::[ranges::]cbegin/cend``\ ","Prague","|Complete|",""
-"`3321 <https://wg21.link/LWG3321>`__","``uninitialized_construct_using_allocator``\  should use ``construct_at``\ ","Prague","",""
+"`3321 <https://wg21.link/LWG3321>`__","``uninitialized_construct_using_allocator``\  should use ``construct_at``\ ","Prague","|Complete|","16.0"
-"`3323 <https://wg21.link/LWG3323>`__","``*has-tuple-element*``\  helper concept needs ``convertible_to``\ ","Prague","","","|ranges|"
+"`3323 <https://wg21.link/LWG3323>`__","``*has-tuple-element*``\  helper concept needs ``convertible_to``\ ","Prague","|Complete|","16.0","|ranges|"
 "`3324 <https://wg21.link/LWG3324>`__","Special-case ``std::strong/weak/partial_order``\  for pointers","Prague","|Complete|","14.0","|spaceship|"
 "`3325 <https://wg21.link/LWG3325>`__","Constrain return type of transformation function for ``transform_view``\ ","Prague","|Complete|","15.0","|ranges|"
 "`3326 <https://wg21.link/LWG3326>`__","``enable_view``\  has false positives","Prague","|Complete|","15.0","|ranges|"
@@ -253,7 +253,7 @@
 "`3329 <https://wg21.link/LWG3329>`__","``totally_ordered_with``\  both directly and indirectly requires ``common_reference_with``\ ","Prague","|Complete|","13.0"
 "`3330 <https://wg21.link/LWG3330>`__","Include ``<compare>``\  from most library headers","Prague","|Complete|","13.0","|spaceship|"
 "`3331 <https://wg21.link/LWG3331>`__","Define ``totally_ordered/_with``\  in terms of ``partially-ordered-with``\ ","Prague","|Complete|","13.0"
-"`3332 <https://wg21.link/LWG3332>`__","Issue in |sect|\ [time.format]","Prague","","","|chrono| |format|"
+"`3332 <https://wg21.link/LWG3332>`__","Issue in |sect|\ [time.format]","Prague","|Complete|","16.0","|chrono| |format|"
 "`3334 <https://wg21.link/LWG3334>`__","``basic_osyncstream``\  move assignment and destruction calls ``basic_syncbuf::emit()``\  twice","Prague","",""
 "`3335 <https://wg21.link/LWG3335>`__","Resolve C++20 NB comments US 273 and GB 274","Prague","|Complete|","15.0","|ranges|"
 "`3338 <https://wg21.link/LWG3338>`__","Rename ``default_constructible``\  to ``default_initializable``\ ","Prague","|Complete|","13.0"
@@ -261,7 +261,7 @@
 "`3346 <https://wg21.link/LWG3346>`__","``pair``\  and ``tuple``\  copy and move constructor have backwards specification","Prague","",""
 "`3347 <https://wg21.link/LWG3347>`__","``std::pair<T, U>``\  now requires ``T``\  and ``U``\  to be less-than-comparable","Prague","",""
 "`3348 <https://wg21.link/LWG3348>`__","``__cpp_lib_unwrap_ref``\  in wrong header","Prague","|Complete|","12.0"
-"`3349 <https://wg21.link/LWG3349>`__","Missing ``__cpp_lib_constexpr_complex``\  for P0415R1","Prague","",""
+"`3349 <https://wg21.link/LWG3349>`__","Missing ``__cpp_lib_constexpr_complex``\  for P0415R1","Prague","|Complete|","16.0"
 "`3350 <https://wg21.link/LWG3350>`__","Simplify return type of ``lexicographical_compare_three_way``\ ","Prague","","","|spaceship|"
 "`3351 <https://wg21.link/LWG3351>`__","``ranges::enable_safe_range``\  should not be constrained","Prague","|Complete|","15.0","|ranges|"
 "`3352 <https://wg21.link/LWG3352>`__","``strong_equality``\  isn't a thing","Prague","|Nothing To Do|","","|spaceship|"
@@ -273,7 +273,7 @@
 "`3360 <https://wg21.link/LWG3360>`__","``three_way_comparable_with``\  is inconsistent with similar concepts","Prague","|Nothing To Do|","","|spaceship|"
 "`3362 <https://wg21.link/LWG3362>`__","Strike ``stop_source``\ 's ``operator!=``\ ","Prague","",""
 "`3363 <https://wg21.link/LWG3363>`__","``drop_while_view``\  should opt-out of ``sized_range``\ ","Prague","|Nothing To Do|","","|ranges|"
-"`3364 <https://wg21.link/LWG3364>`__","Initialize data members of ranges and their iterators","Prague","","","|ranges|"
+"`3364 <https://wg21.link/LWG3364>`__","Initialize data members of ranges and their iterators","Prague","|Complete|","16.0","|ranges|"
 "`3367 <https://wg21.link/LWG3367>`__","Integer-class conversions should not throw","Prague","|Nothing To Do|",""
 "`3369 <https://wg21.link/LWG3369>`__","``span``\ 's deduction-guide for built-in arrays doesn't work","Prague","|Complete|","14.0"
 "`3371 <https://wg21.link/LWG3371>`__","``visit_format_arg``\  and ``make_format_args``\  are not hidden friends","Prague","|Complete|","14.0","|format|"
@@ -281,7 +281,7 @@
 "`3373 <https://wg21.link/LWG3373>`__","``{to,from}_chars_result``\  and ``format_to_n_result``\  need the  ""we really mean what we say"" wording","Prague","|Complete|","14.0","|format|"
 "`3374 <https://wg21.link/LWG3374>`__","P0653 + P1006 should have made the other ``std::to_address``\  overload ``constexpr``\ ","Prague","|Complete|","12.0"
 "`3375 <https://wg21.link/LWG3375>`__","``decay``\  in ``viewable_range``\  should be ``remove_cvref``\ ","Prague","|Complete|","15.0","|ranges|"
-"`3377 <https://wg21.link/LWG3377>`__","``elements_view::iterator``\  befriends a specialization of itself","Prague","","","|ranges|"
+"`3377 <https://wg21.link/LWG3377>`__","``elements_view::iterator``\  befriends a specialization of itself","Prague","|Nothing To Do|","","|ranges|"
 "`3379 <https://wg21.link/LWG3379>`__","""``safe``\ "" in several library names is misleading","Prague","|Complete|","15.0","|ranges|"
 "`3380 <https://wg21.link/LWG3380>`__","``common_type``\  and comparison categories","Prague","|Complete|","15.0","|spaceship|"
 "`3381 <https://wg21.link/LWG3381>`__","``begin``\  and ``data``\  must agree for ``contiguous_range``\ ","Prague","|Nothing To Do|","","|ranges|"
@@ -290,12 +290,12 @@
 "`3384 <https://wg21.link/LWG3384>`__","``transform_view::*sentinel*``\  has an incorrect ``operator-``\ ","Prague","|Complete|","15.0","|ranges|"
 "`3385 <https://wg21.link/LWG3385>`__","``common_iterator``\  is not sufficiently constrained for non-copyable iterators","Prague","|Complete|","15.0","|ranges|"
 "`3387 <https://wg21.link/LWG3387>`__","|sect|\ [range.reverse.view] ``reverse_view<V>``\  unintentionally requires ``range<const V>``\ ","Prague","|Complete|","15.0","|ranges|"
-"`3388 <https://wg21.link/LWG3388>`__","``view``\  iterator types have ill-formed ``<=>``\  operators","Prague","","","|ranges|"
+"`3388 <https://wg21.link/LWG3388>`__","``view``\  iterator types have ill-formed ``<=>``\  operators","Prague","|Complete|","16.0","|ranges|"
 "`3389 <https://wg21.link/LWG3389>`__","A move-only iterator still does not have a ``counted_iterator``\ ","Prague","|Complete|","15.0","|ranges|"
 "`3390 <https://wg21.link/LWG3390>`__","``make_move_iterator()``\  cannot be used to construct a ``move_iterator``\  for a move-only iterator","Prague","|Complete|","14.0","|ranges|"
 "`3393 <https://wg21.link/LWG3393>`__","Missing/incorrect feature test macro for coroutines","Prague","|Complete|","14.0"
 "`3395 <https://wg21.link/LWG3395>`__","Definition for three-way comparison needs to be updated (US 152)","Prague","","","|spaceship|"
-"`3396 <https://wg21.link/LWG3396>`__","Clarify point of reference for ``source_location::current()``\  (DE 169)","Prague","",""
+"`3396 <https://wg21.link/LWG3396>`__","Clarify point of reference for ``source_location::current()``\  (DE 169)","Prague","|Nothing To Do|","16.0"
-"`3397 <https://wg21.link/LWG3397>`__","``ranges::basic_istream_view::iterator``\  should not provide ``iterator_category``\ ","Prague","","","|ranges|"
+"`3397 <https://wg21.link/LWG3397>`__","``ranges::basic_istream_view::iterator``\  should not provide ``iterator_category``\ ","Prague","|Complete|","16.0","|ranges|"
 "`3398 <https://wg21.link/LWG3398>`__","``tuple_element_t``\  is also wrong for ``const subrange``\ ","Prague","|Complete|","14.0","|ranges|"
-"`3446 <https://wg21.link/LWG3446>`__","``indirectly_readable_traits``\ ambiguity for types with both ``value_type``\ and ``element_type``\ ","November virtual meeting","|Complete|","13.0"
+"`3446 <https://wg21.link/LWG3446>`__","``indirectly_readable_traits``\  ambiguity for types with both ``value_type``\  and ``element_type``\ ","November virtual meeting","|Complete|","13.0","|ranges|"

docs/Status/Cxx20Papers.csv

@@ -1,15 +1,15 @@
-"Paper #","Group","Paper Name","Meeting","Status","First released version"
+"Paper #","Group","Paper Name","Meeting","Status","First released version","Labels"
 "`P0463R1 <https://wg21.link/P0463R1>`__","LWG","Endian just Endian","Toronto","|Complete|","7.0"
 "`P0674R1 <https://wg21.link/P0674R1>`__","LWG","Extending make_shared to Support Arrays","Toronto","|Complete|","15.0"
-"","","","","",""
+"","","","","","",""
 "`P0020R6 <https://wg21.link/P0020R6>`__","LWG","Floating Point Atomic","Albuquerque","",""
 "`P0053R7 <https://wg21.link/P0053R7>`__","LWG","C++ Synchronized Buffered Ostream","Albuquerque","",""
 "`P0202R3 <https://wg21.link/P0202R3>`__","LWG","Add constexpr modifiers to functions in <algorithm> and <utility> Headers","Albuquerque","|Complete|","12.0"
-"`P0415R1 <https://wg21.link/P0415R1>`__","LWG","Constexpr for ``std::complex``\ ","Albuquerque","|In Progress|","7.0"
+"`P0415R1 <https://wg21.link/P0415R1>`__","LWG","Constexpr for ``std::complex``\ ","Albuquerque","|Complete|","16.0"
 "`P0439R0 <https://wg21.link/P0439R0>`__","LWG","Make ``std::memory_order``\  a scoped enumeration","Albuquerque","|Complete|",""
 "`P0457R2 <https://wg21.link/P0457R2>`__","LWG","String Prefix and Suffix Checking","Albuquerque","|Complete|","6.0"
 "`P0550R2 <https://wg21.link/P0550R2>`__","LWG","Transformation Trait ``remove_cvref``\ ","Albuquerque","|Complete|","6.0"
-"`P0600R1 <https://wg21.link/P0600R1>`__","LWG","nodiscard in the Library","Albuquerque","|In Progress| [#note-P0600]_","7.0"
+"`P0600R1 <https://wg21.link/P0600R1>`__","LWG","nodiscard in the Library","Albuquerque","|Complete|","16.0"
 "`P0616R0 <https://wg21.link/P0616R0>`__","LWG","de-pessimize legacy <numeric> algorithms with std::move","Albuquerque","|Complete|","12.0"
 "`P0653R2 <https://wg21.link/P0653R2>`__","LWG","Utility to convert a pointer to a raw pointer","Albuquerque","|Complete|","6.0"
 "`P0718R2 <https://wg21.link/P0718R2>`__","LWG","Atomic shared_ptr","Albuquerque","",""
@@ -25,7 +25,7 @@
 "`P0858R0 <https://wg21.link/P0858R0>`__","LWG","Constexpr iterator requirements","Jacksonville","|Complete|","12.0"
 "`P0905R1 <https://wg21.link/P0905R1>`__","CWG","Symmetry for spaceship","Jacksonville","",""
 "`P0966R1 <https://wg21.link/P0966R1>`__","LWG","``string::reserve``\  Should Not Shrink","Jacksonville","|Complete| [#note-P0966]_","12.0"
-"","","","","",""
+"","","","","","",""
 "`P0019R8 <https://wg21.link/P0019R8>`__","LWG","Atomic Ref","Rapperswil","",""
 "`P0458R2 <https://wg21.link/P0458R2>`__","LWG","Checking for Existence of an Element in Associative Containers","Rapperswil","|Complete|","13.0"
 "`P0475R1 <https://wg21.link/P0475R1>`__","LWG","LWG 2511: guaranteed copy elision for piecewise construction","Rapperswil","|Complete|",""
@@ -49,25 +49,25 @@
 "`P1023R0 <https://wg21.link/P1023R0>`__","LWG","constexpr comparison operators for std::array","Rapperswil","|Complete|","8.0"
 "`P1025R1 <https://wg21.link/P1025R1>`__","CWG","Update The Reference To The Unicode Standard","Rapperswil","",""
 "`P1120R0 <https://wg21.link/P1120R0>`__","CWG","Consistency improvements for <=> and other comparison operators","Rapperswil","",""
-"","","","","",""
+"","","","","","",""
 "`P0318R1 <https://wg21.link/P0318R1>`__","LWG","unwrap_ref_decay and unwrap_reference","San Diego","|Complete|","8.0"
 "`P0356R5 <https://wg21.link/P0356R5>`__","LWG","Simplified partial function application","San Diego","|Complete|","13.0"
 "`P0357R3 <https://wg21.link/P0357R3>`__","LWG","reference_wrapper for incomplete types","San Diego","|Complete|","8.0"
-"`P0482R6 <https://wg21.link/P0482R6>`__","CWG","char8_t: A type for UTF-8 characters and strings","San Diego","|In Progress|",""
+"`P0482R6 <https://wg21.link/P0482R6>`__","CWG","char8_t: A type for UTF-8 characters and strings","San Diego","|Complete|","16.0"
 "`P0487R1 <https://wg21.link/P0487R1>`__","LWG","Fixing ``operator>>(basic_istream&, CharT*)``\  (LWG 2499)","San Diego","|Complete|","8.0"
-"`P0591R4 <https://wg21.link/P0591R4>`__","LWG","Utility functions to implement uses-allocator construction","San Diego","* *",""
+"`P0591R4 <https://wg21.link/P0591R4>`__","LWG","Utility functions to implement uses-allocator construction","San Diego","|Partial| [#note-P0591]_",""
-"`P0595R2 <https://wg21.link/P0595R2>`__","CWG","P0595R2 std::is_constant_evaluated()","San Diego","|Complete|","9.0"
+"`P0595R2 <https://wg21.link/P0595R2>`__","CWG","std::is_constant_evaluated()","San Diego","|Complete|","9.0"
 "`P0602R4 <https://wg21.link/P0602R4>`__","LWG","variant and optional should propagate copy/move triviality","San Diego","|Complete|","8.0"
 "`P0608R3 <https://wg21.link/P0608R3>`__","LWG","A sane variant converting constructor","San Diego","|Complete|","9.0"
 "`P0655R1 <https://wg21.link/P0655R1>`__","LWG","visit<R>: Explicit Return Type for visit","San Diego","|Complete|","12.0"
 "`P0771R1 <https://wg21.link/P0771R1>`__","LWG","std::function move constructor should be noexcept","San Diego","|Complete|","6.0"
-"`P0896R4 <https://wg21.link/P0896R4>`__","LWG","The One Ranges Proposal","San Diego","|Complete|","15.0"
+"`P0896R4 <https://wg21.link/P0896R4>`__","LWG","The One Ranges Proposal","San Diego","|Complete|","15.0","|ranges|"
 "`P0899R1 <https://wg21.link/P0899R1>`__","LWG","P0899R1 - LWG 3016 is not a defect","San Diego","|Nothing To Do|",""
 "`P0919R3 <https://wg21.link/P0919R3>`__","LWG","Heterogeneous lookup for unordered containers","San Diego","|Complete|","12.0"
 "`P0972R0 <https://wg21.link/P0972R0>`__","LWG","<chrono> ``zero()``\ , ``min()``\ , and ``max()``\  should be noexcept","San Diego","|Complete|","8.0"
 "`P1006R1 <https://wg21.link/P1006R1>`__","LWG","Constexpr in std::pointer_traits","San Diego","|Complete|","8.0"
 "`P1007R3 <https://wg21.link/P1007R3>`__","LWG","``std::assume_aligned``\ ","San Diego","|Complete|","15.0"
-"`P1020R1 <https://wg21.link/P1020R1>`__","LWG","Smart pointer creation with default initialization","San Diego","* *",""
+"`P1020R1 <https://wg21.link/P1020R1>`__","LWG","Smart pointer creation with default initialization","San Diego","|Complete|","16.0"
 "`P1032R1 <https://wg21.link/P1032R1>`__","LWG","Misc constexpr bits","San Diego","|Complete|","13.0"
 "`P1085R2 <https://wg21.link/P1085R2>`__","LWG","Should Span be Regular?","San Diego","|Complete|","8.0"
 "`P1123R0 <https://wg21.link/P1123R0>`__","LWG","Editorial Guidance for merging P0019r8 and P0528r3","San Diego","* *",""
@@ -79,8 +79,8 @@
 "`P1248R1 <https://wg21.link/P1248R1>`__","LWG","Remove CommonReference requirement from StrictWeakOrdering (a.k.a Fixing Relations)","San Diego","|Complete|","13.0"
 "`P1285R0 <https://wg21.link/P1285R0>`__","LWG","Improving Completeness Requirements for Type Traits","San Diego","* *",""
 "`P1353R0 <https://wg21.link/P1353R0>`__","CWG","Missing feature test macros","San Diego","* *",""
-"","","","","",""
+"","","","","","",""
-"`P0339R6 <https://wg21.link/P0339R6>`__","LWG","polymorphic_allocator<> as a vocabulary type","Kona","",""
+"`P0339R6 <https://wg21.link/P0339R6>`__","LWG","polymorphic_allocator<> as a vocabulary type","Kona","|Complete|","16.0"
 "`P0340R3 <https://wg21.link/P0340R3>`__","LWG","Making std::underlying_type SFINAE-friendly","Kona","|Complete|","9.0"
 "`P0738R2 <https://wg21.link/P0738R2>`__","LWG","I Stream, You Stream, We All Stream for istream_iterator","Kona","",""
 "`P0811R3 <https://wg21.link/P0811R3>`__","LWG","Well-behaved interpolation for numbers and pointers","Kona","|Complete|","9.0"
@@ -89,7 +89,7 @@
 "`P1024R3 <https://wg21.link/P1024R3>`__","LWG","Usability Enhancements for std::span","Kona","|Complete|","9.0"
 "`P1164R1 <https://wg21.link/P1164R1>`__","LWG","Make create_directory() Intuitive","Kona","|Complete|","12.0"
 "`P1227R2 <https://wg21.link/P1227R2>`__","LWG","Signed ssize() functions, unsigned size() functions","Kona","|Complete|","9.0"
-"`P1252R2 <https://wg21.link/P1252R2>`__","LWG","Ranges Design Cleanup","Kona","|Complete|","15.0"
+"`P1252R2 <https://wg21.link/P1252R2>`__","LWG","Ranges Design Cleanup","Kona","|Complete|","15.0","|ranges|"
 "`P1286R2 <https://wg21.link/P1286R2>`__","CWG","Contra CWG DR1778","Kona","",""
 "`P1357R1 <https://wg21.link/P1357R1>`__","LWG","Traits for [Un]bounded Arrays","Kona","|Complete|","9.0"
 "`P1458R1 <https://wg21.link/P1458R1>`__","LWG","Mandating the Standard Library: Clause 16 - Language support library","Kona","|Complete|","9.0"
@@ -97,7 +97,7 @@
 "`P1462R1 <https://wg21.link/P1462R1>`__","LWG","Mandating the Standard Library: Clause 20 - Strings library","Kona","|Complete|","9.0"
 "`P1463R1 <https://wg21.link/P1463R1>`__","LWG","Mandating the Standard Library: Clause 21 - Containers library","Kona","",""
 "`P1464R1 <https://wg21.link/P1464R1>`__","LWG","Mandating the Standard Library: Clause 22 - Iterators library","Kona","|Complete|","9.0"
-"","","","","",""
+"","","","","","",""
 "`P0325R4 <https://wg21.link/P0325R4>`__","LWG","to_array from LFTS with updates","Cologne","|Complete|","10.0"
 "`P0408R7 <https://wg21.link/P0408R7>`__","LWG","Efficient Access to basic_stringbuf's Buffer","Cologne","",""
 "`P0466R5 <https://wg21.link/P0466R5>`__","LWG","Layout-compatibility and Pointer-interconvertibility Traits","Cologne","",""
@@ -108,40 +108,40 @@
 "`P0784R7 <https://wg21.link/P0784R7>`__","CWG","More constexpr containers","Cologne","|Complete|","12.0"
 "`P0980R1 <https://wg21.link/P0980R1>`__","LWG","Making std::string constexpr","Cologne","|Complete|","15.0"
 "`P1004R2 <https://wg21.link/P1004R2>`__","LWG","Making std::vector constexpr","Cologne","|Complete|","15.0"
-"`P1035R7 <https://wg21.link/P1035R7>`__","LWG","Input Range Adaptors","Cologne","",""
+"`P1035R7 <https://wg21.link/P1035R7>`__","LWG","Input Range Adaptors","Cologne","|Complete|","16.0","|ranges|"
 "`P1065R2 <https://wg21.link/P1065R2>`__","LWG","Constexpr INVOKE","Cologne","|Complete|","12.0"
 "`P1135R6 <https://wg21.link/P1135R6>`__","LWG","The C++20 Synchronization Library","Cologne","|Complete|","11.0"
-"`P1207R4 <https://wg21.link/P1207R4>`__","LWG","Movability of Single-pass Iterators","Cologne","|Complete|","15.0"
+"`P1207R4 <https://wg21.link/P1207R4>`__","LWG","Movability of Single-pass Iterators","Cologne","|Complete|","15.0","|ranges|"
-"`P1208R6 <https://wg21.link/P1208R6>`__","LWG","Adopt source_location for C++20","Cologne","",""
+"`P1208R6 <https://wg21.link/P1208R6>`__","LWG","Adopt source_location for C++20","Cologne","|Complete|","16.0"
 "`P1355R2 <https://wg21.link/P1355R2>`__","LWG","Exposing a narrow contract for ceil2","Cologne","|Complete|","9.0"
-"`P1361R2 <https://wg21.link/P1361R2>`__","LWG","Integration of chrono with text formatting","Cologne","",""
+"`P1361R2 <https://wg21.link/P1361R2>`__","LWG","Integration of chrono with text formatting","Cologne","|Partial|",""
 "`P1423R3 <https://wg21.link/P1423R3>`__","LWG","char8_t backward compatibility remediation","Cologne","|Complete|","15.0"
 "`P1424R1 <https://wg21.link/P1424R1>`__","LWG","'constexpr' feature macro concerns","Cologne","Superseded by `P1902 <https://wg21.link/P1902>`__",""
 "`P1466R3 <https://wg21.link/P1466R3>`__","LWG","Miscellaneous minor fixes for chrono","Cologne","",""
-"`P1474R1 <https://wg21.link/P1474R1>`__","LWG","Helpful pointers for ContiguousIterator","Cologne","|Complete|","15.0"
+"`P1474R1 <https://wg21.link/P1474R1>`__","LWG","Helpful pointers for ContiguousIterator","Cologne","|Complete|","15.0","|ranges|"
 "`P1502R1 <https://wg21.link/P1502R1>`__","LWG","Standard library header units for C++20","Cologne","",""
-"`P1522R1 <https://wg21.link/P1522R1>`__","LWG","Iterator Difference Type and Integer Overflow","Cologne","|Complete|","15.0"
+"`P1522R1 <https://wg21.link/P1522R1>`__","LWG","Iterator Difference Type and Integer Overflow","Cologne","|Complete|","15.0","|ranges|"
-"`P1523R1 <https://wg21.link/P1523R1>`__","LWG","Views and Size Types","Cologne","|Complete|","15.0"
+"`P1523R1 <https://wg21.link/P1523R1>`__","LWG","Views and Size Types","Cologne","|Complete|","15.0","|ranges|"
 "`P1612R1 <https://wg21.link/P1612R1>`__","LWG","Relocate Endian's Specification","Cologne","|Complete|","10.0"
 "`P1614R2 <https://wg21.link/P1614R2>`__","LWG","The Mothership has Landed","Cologne","|In Progress|",""
-"`P1638R1 <https://wg21.link/P1638R1>`__","LWG","basic_istream_view::iterator should not be copyable","Cologne","",""
+"`P1638R1 <https://wg21.link/P1638R1>`__","LWG","basic_istream_view::iterator should not be copyable","Cologne","|Complete|","16.0","|ranges|"
 "`P1643R1 <https://wg21.link/P1643R1>`__","LWG","Add wait/notify to atomic_ref","Cologne","",""
 "`P1644R0 <https://wg21.link/P1644R0>`__","LWG","Add wait/notify to atomic<shared_ptr>","Cologne","",""
-"`P1650R0 <https://wg21.link/P1650R0>`__","LWG","Output std::chrono::days with 'd' suffix","Cologne","",""
+"`P1650R0 <https://wg21.link/P1650R0>`__","LWG","Output std::chrono::days with 'd' suffix","Cologne","|Complete|","16.0"
 "`P1651R0 <https://wg21.link/P1651R0>`__","LWG","bind_front should not unwrap reference_wrapper","Cologne","|Complete|","13.0"
 "`P1652R1 <https://wg21.link/P1652R1>`__","LWG","Printf corner cases in std::format","Cologne","|Complete|","14.0"
 "`P1661R1 <https://wg21.link/P1661R1>`__","LWG","Remove dedicated precalculated hash lookup interface","Cologne","|Nothing To Do|",""
-"`P1754R1 <https://wg21.link/P1754R1>`__","LWG","Rename concepts to standard_case for C++20, while we still can","Cologne","|In Progress|",""
+"`P1754R1 <https://wg21.link/P1754R1>`__","LWG","Rename concepts to standard_case for C++20, while we still can","Cologne","|Complete|","15.0","|ranges|"
 "","","","","",""
 "`P0883R2 <https://wg21.link/P0883R2>`__","LWG","Fixing Atomic Initialization","Belfast","|Complete| [#note-P0883.1]_ [#note-P0883.2]_","14.0"
-"`P1391R4 <https://wg21.link/P1391R4>`__","LWG","Range constructor for std::string_view","Belfast","|Complete|","14.0"
+"`P1391R4 <https://wg21.link/P1391R4>`__","LWG","Range constructor for std::string_view","Belfast","|Complete|","14.0","|ranges|"
-"`P1394R4 <https://wg21.link/P1394R4>`__","LWG","Range constructor for std::span","Belfast","|Complete|","14.0"
+"`P1394R4 <https://wg21.link/P1394R4>`__","LWG","Range constructor for std::span","Belfast","|Complete|","14.0","|ranges|"
-"`P1456R1 <https://wg21.link/P1456R1>`__","LWG","Move-only views","Belfast","|Complete|","15.0"
+"`P1456R1 <https://wg21.link/P1456R1>`__","LWG","Move-only views","Belfast","|Complete|","15.0","|ranges|"
 "`P1622R3 <https://wg21.link/P1622R3>`__","LWG","Mandating the Standard Library: Clause 32 - Thread support library","Belfast","* *",""
 "`P1645R1 <https://wg21.link/P1645R1>`__","LWG","constexpr for numeric algorithms","Belfast","|Complete|","12.0"
 "`P1686R2 <https://wg21.link/P1686R2>`__","LWG","Mandating the Standard Library: Clause 27 - Time library","Belfast","* *",""
 "`P1690R1 <https://wg21.link/P1690R1>`__","LWG","Refinement Proposal for P0919 Heterogeneous lookup for unordered containers","Belfast","|Complete|","12.0"
-"`P1716R3 <https://wg21.link/P1716R3>`__","LWG","ranges compare algorithm are over-constrained","Belfast","|Complete|","15.0"
+"`P1716R3 <https://wg21.link/P1716R3>`__","LWG","ranges compare algorithm are over-constrained","Belfast","|Complete|","15.0","|ranges|"
 "`P1718R2 <https://wg21.link/P1718R2>`__","LWG","Mandating the Standard Library: Clause 25 - Algorithms library","Belfast","* *",""
 "`P1719R2 <https://wg21.link/P1719R2>`__","LWG","Mandating the Standard Library: Clause 26 - Numerics library","Belfast","* *",""
 "`P1720R2 <https://wg21.link/P1720R2>`__","LWG","Mandating the Standard Library: Clause 28 - Localization library","Belfast","* *",""
@@ -149,59 +149,58 @@
 "`P1722R2 <https://wg21.link/P1722R2>`__","LWG","Mandating the Standard Library: Clause 30 - Regular Expression library","Belfast","* *",""
 "`P1723R2 <https://wg21.link/P1723R2>`__","LWG","Mandating the Standard Library: Clause 31 - Atomics library","Belfast","* *",""
 "`P1855R0 <https://wg21.link/P1855R0>`__","LWG","Make ``<compare>``\  freestanding","Belfast","* *",""
-"`P1862R1 <https://wg21.link/P1862R1>`__","LWG","Ranges adaptors for non-copyable iterators","Belfast","* *",""
+"`P1862R1 <https://wg21.link/P1862R1>`__","LWG","Ranges adaptors for non-copyable iterators","Belfast","|Complete|","16.0","|ranges|"
 "`P1865R1 <https://wg21.link/P1865R1>`__","LWG","Add max() to latch and barrier","Belfast","|Complete|","11.0"
 "`P1869R1 <https://wg21.link/P1869R1>`__","LWG","Rename 'condition_variable_any' interruptible wait methods","Belfast","* *",""
-"`P1870R1 <https://wg21.link/P1870R1>`__","LWG","forwarding-range is too subtle","Belfast","|Complete|","15.0"
+"`P1870R1 <https://wg21.link/P1870R1>`__","LWG","forwarding-range is too subtle","Belfast","|Complete|","15.0","|ranges|"
-"`P1871R1 <https://wg21.link/P1871R1>`__","LWG","Concept traits should be named after concepts","Belfast","|Complete|","14.0"
+"`P1871R1 <https://wg21.link/P1871R1>`__","LWG","Concept traits should be named after concepts","Belfast","|Complete|","14.0","|ranges|"
 "`P1872R0 <https://wg21.link/P1872R0>`__","LWG","span should have size_type, not index_type","Belfast","|Complete|","10.0"
-"`P1878R1 <https://wg21.link/P1878R1>`__","LWG","Constraining Readable Types","Belfast","|Complete|","15.0"
+"`P1878R1 <https://wg21.link/P1878R1>`__","LWG","Constraining Readable Types","Belfast","|Complete|","15.0","|ranges|"
 "`P1892R1 <https://wg21.link/P1892R1>`__","LWG","Extended locale-specific presentation specifiers for std::format","Belfast","|Complete|","14.0"
 "`P1902R1 <https://wg21.link/P1902R1>`__","LWG","Missing feature-test macros 2018-2019","Belfast","* *",""
-"`P1959R0 <https://wg21.link/P1959R0>`__","LWG","Remove std::weak_equality and std::strong_equality","Belfast","* *",""
+"`P1959R0 <https://wg21.link/P1959R0>`__","LWG","Remove std::weak_equality and std::strong_equality","Belfast","|Nothing To Do|",""
 "`P1960R0 <https://wg21.link/P1960R0>`__","LWG","NB Comment Changes Reviewed by SG1","Belfast","* *",""
 "`P1961R0 <https://wg21.link/P1961R0>`__","LWG","Harmonizing the definitions of total order for pointers","Belfast","* *",""
 "`P1965R0 <https://wg21.link/P1965R0>`__","LWG","Blanket Wording for Specifying ""Hidden Friends""","Belfast","* *",""
-"","","","","",""
+"","","","","","",""
 "`P0586R2 <https://wg21.link/P0586R2>`__","LWG","Safe integral comparisons","Prague","|Complete|","13.0"
 "`P0593R6 <https://wg21.link/P0593R6>`__","CWG","Implicit creation of objects for low-level object manipulation","Prague","* *",""
 "`P1115R3 <https://wg21.link/P1115R3>`__","LWG","Improving the Return Value of Erase-Like Algorithms II: Free erase/erase if","Prague","|Complete|","11.0"
-"`P1243R4 <https://wg21.link/P1243R4>`__","LWG","Rangify New Algorithms","Prague","|Complete|","15.0"
+"`P1243R4 <https://wg21.link/P1243R4>`__","LWG","Rangify New Algorithms","Prague","|Complete|","15.0","|ranges|"
 "`P1460R1 <https://wg21.link/P1460R1>`__","LWG","Mandating the Standard Library: Clause 20 - Utilities library","Prague","* *",""
-"`P1739R4 <https://wg21.link/P1739R4>`__","LWG","Avoid template bloat for safe_ranges in combination with ""subrange-y"" view adaptors","Prague","|Complete|","15.0"
+"`P1739R4 <https://wg21.link/P1739R4>`__","LWG","Avoid template bloat for safe_ranges in combination with ""subrange-y"" view adaptors","Prague","|Complete|","15.0","|ranges|"
 "`P1831R1 <https://wg21.link/P1831R1>`__","LWG","Deprecating volatile: library","Prague","* *",""
 "`P1868R2 <https://wg21.link/P1868R2>`__","LWG","width: clarifying units of width and precision in std::format","Prague","|Complete|","14.0"
-"`P1908R1 <https://wg21.link/P1908R1>`__","CWG","Reserving Attribute Namespaces for Future Use","Prague","* *",""
 "`P1937R2 <https://wg21.link/P1937R2>`__","CWG","Fixing inconsistencies between constexpr and consteval functions","Prague","* *",""
 "`P1956R1 <https://wg21.link/P1956R1>`__","LWG","On the names of low-level bit manipulation functions","Prague","|Complete|","12.0"
 "`P1957R2 <https://wg21.link/P1957R2>`__","CWG","Converting from ``T*``\  to bool should be considered narrowing (re: US 212)","Prague","* *",""
-"`P1963R0 <https://wg21.link/P1963R0>`__","LWG","Fixing US 313","Prague","* *",""
+"`P1963R0 <https://wg21.link/P1963R0>`__","LWG","Fixing US 313","Prague","* *","",""
 "`P1964R2 <https://wg21.link/P1964R2>`__","LWG","Wording for boolean-testable","Prague","|Complete|","13.0"
-"`P1970R2 <https://wg21.link/P1970R2>`__","LWG","Consistency for size() functions: Add ranges::ssize","Prague","|Complete|","15.0"
+"`P1970R2 <https://wg21.link/P1970R2>`__","LWG","Consistency for size() functions: Add ranges::ssize","Prague","|Complete|","15.0","|ranges|"
-"`P1973R1 <https://wg21.link/P1973R1>`__","LWG","Rename ""_default_init"" Functions, Rev1","Prague","* *",""
+"`P1973R1 <https://wg21.link/P1973R1>`__","LWG","Rename ""_default_init"" Functions, Rev1","Prague","|Complete|","16.0"
-"`P1976R2 <https://wg21.link/P1976R2>`__","LWG","Fixed-size span construction from dynamic range","Prague","|Complete|","11.0"
+"`P1976R2 <https://wg21.link/P1976R2>`__","LWG","Fixed-size span construction from dynamic range","Prague","|Complete|","11.0","|ranges|"
 "`P1981R0 <https://wg21.link/P1981R0>`__","LWG","Rename leap to leap_second","Prague","* *",""
 "`P1982R0 <https://wg21.link/P1982R0>`__","LWG","Rename link to time_zone_link","Prague","* *",""
-"`P1983R0 <https://wg21.link/P1983R0>`__","LWG","Wording for GB301, US296, US292, US291, and US283","Prague","|Complete|","15.0"
+"`P1983R0 <https://wg21.link/P1983R0>`__","LWG","Wording for GB301, US296, US292, US291, and US283","Prague","|Complete|","15.0","|ranges|"
-"`P1994R1 <https://wg21.link/P1994R1>`__","LWG","elements_view needs its own sentinel","Prague","* *",""
+"`P1994R1 <https://wg21.link/P1994R1>`__","LWG","elements_view needs its own sentinel","Prague","|Complete|","16.0","|ranges|"
 "`P2002R1 <https://wg21.link/P2002R1>`__","CWG","Defaulted comparison specification cleanups","Prague","* *",""
 "`P2045R1 <https://wg21.link/P2045R1>`__","LWG","Missing Mandates for the standard library","Prague","* *",""
 "`P2085R0 <https://wg21.link/P2085R0>`__","CWG","Consistent defaulted comparisons","Prague","* *",""
-"`P2091R0 <https://wg21.link/P2091R0>`__","LWG","Issues with range access CPOs","Prague","|Complete|","15.0"
+"`P2091R0 <https://wg21.link/P2091R0>`__","LWG","Issues with range access CPOs","Prague","|Complete|","15.0","|ranges|"
 "`P2101R0 <https://wg21.link/P2101R0>`__","LWG","'Models' subsumes 'satisfies' (Wording for US298 and US300)","Prague","* *",""
 "`P2102R0 <https://wg21.link/P2102R0>`__","LWG","Make 'implicit expression variations' more explicit (Wording for US185)","Prague","* *",""
-"`P2106R0 <https://wg21.link/P2106R0>`__","LWG","Alternative wording for GB315 and GB316","Prague","|Complete|","15.0"
+"`P2106R0 <https://wg21.link/P2106R0>`__","LWG","Alternative wording for GB315 and GB316","Prague","|Complete|","15.0","|ranges|"
 "`P2116R0 <https://wg21.link/P2116R0>`__","LWG","Remove tuple-like protocol support from fixed-extent span","Prague","|Complete|","11.0"
-"","","","","",""
+"","","","","","",""
 "`P2231R1 <https://wg21.link/P2231R1>`__","LWG","Missing constexpr in std::optional and std::variant","June 2021","|Partial| [#note-P2231]_","13.0"
-"`P2325R3 <https://wg21.link/P2325R3>`__","LWG","Views should not be required to be default constructible","June 2021","|In progress|",""
+"`P2325R3 <https://wg21.link/P2325R3>`__","LWG","Views should not be required to be default constructible","June 2021","|Complete|","16.0","|ranges|"
-"`P2210R2 <https://wg21.link/P2210R2>`__","LWG",Superior String Splitting,"June 2021","",""
+"`P2210R2 <https://wg21.link/P2210R2>`__","LWG","Superior String Splitting","June 2021","|Complete|","16.0","|ranges|"
-"`P2216R3 <https://wg21.link/P2216R3>`__","LWG",std::format improvements,"June 2021","|Complete|","15.0"
+"`P2216R3 <https://wg21.link/P2216R3>`__","LWG","std::format improvements","June 2021","|Complete|","15.0"
-"`P2281R1 <https://wg21.link/P2281R1>`__","LWG",Clarifying range adaptor objects,"June 2021","|Complete|","14.0"
+"`P2281R1 <https://wg21.link/P2281R1>`__","LWG","Clarifying range adaptor objects","June 2021","|Complete|","14.0","|ranges|"
-"`P2328R1 <https://wg21.link/P2328R1>`__","LWG",join_view should join all views of ranges,"June 2021","",""
+"`P2328R1 <https://wg21.link/P2328R1>`__","LWG","join_view should join all views of ranges","June 2021","|Complete|","15.0","|ranges|"
-"`P2367R0 <https://wg21.link/P2367R0>`__","LWG",Remove misuses of list-initialization from Clause 24,"June 2021","",""
+"`P2367R0 <https://wg21.link/P2367R0>`__","LWG","Remove misuses of list-initialization from Clause 24","June 2021","|Complete|","15.0","|ranges|"
-"","","","","",""
+"","","","","","",""
-"`P2372R3 <https://wg21.link/P2372R3>`__","LWG","Fixing locale handling in chrono formatters","October 2021","",""
+"`P2372R3 <https://wg21.link/P2372R3>`__","LWG","Fixing locale handling in chrono formatters","October 2021","|In Progress|",""
-"`P2415R2 <https://wg21.link/P2415R2>`__","LWG","What is a ``view``","October 2021","|Complete|","14.0"
+"`P2415R2 <https://wg21.link/P2415R2>`__","LWG","What is a ``view``","October 2021","|Complete|","14.0","|ranges|"
 "`P2418R2 <https://wg21.link/P2418R2>`__","LWG","Add support for ``std::generator``-like types to ``std::format``","October 2021","|Complete|","15.0"
-"`P2432R1 <https://wg21.link/P2432R1>`__","LWG","Fix ``istream_view``","October 2021","",""
+"`P2432R1 <https://wg21.link/P2432R1>`__","LWG","Fix ``istream_view``","October 2021","|Complete|","16.0","|ranges|"

docs/Status/Cxx2b.rst

@@ -37,6 +37,12 @@ Paper Status
    :header-rows: 1
    :widths: auto
 
+.. note::
+
+   .. [#note-P0533R9] P0533R9: ``isfinite``, ``isinf``, ``isnan`` and ``isnormal`` are implemented.
+   .. [#note-P1413R3] P1413R3: ``std::aligned_storage_t`` and ``std::aligned_union_t`` are marked deprecated, but
+      clang doesn't issue a diagnostic for deprecated using template declarations.
+
 .. _issues-status-cxx2b:
 
 Library Working Group Issues Status

docs/Status/Cxx2bIssues.csv

@@ -1,15 +1,15 @@
 "Issue #","Issue Name","Meeting","Status","First released version","Labels"
 "`2839 <https://wg21.link/LWG2839>`__","Self-move-assignment of library types, again","November 2020","|Nothing To Do|",""
-"`3117 <https://wg21.link/LWG3117>`__","Missing ``packaged_task`` deduction guides","November 2020","",""
+"`3117 <https://wg21.link/LWG3117>`__","Missing ``packaged_task`` deduction guides","November 2020","|Complete|","16.0"
 "`3143 <https://wg21.link/LWG3143>`__","``monotonic_buffer_resource`` growth policy is unclear","November 2020","",""
 "`3195 <https://wg21.link/LWG3195>`__","What is the stored pointer value of an empty ``weak_ptr``?","November 2020","|Nothing To Do|",""
 "`3211 <https://wg21.link/LWG3211>`__","``std::tuple<>`` should be trivially constructible","November 2020","|Complete|","9.0"
-"`3236 <https://wg21.link/LWG3236>`__","Random access iterator requirements lack limiting relational operators domain to comparing those from the same range","November 2020","|Nothing To Do|","","|ranges|"
+"`3236 <https://wg21.link/LWG3236>`__","Random access iterator requirements lack limiting relational operators domain to comparing those from the same range","November 2020","|Nothing To Do|",""
 "`3265 <https://wg21.link/LWG3265>`__","``move_iterator``'s conversions are more broken after P1207","November 2020","Fixed by `LWG3435 <https://wg21.link/LWG3435>`__",""
 "`3435 <https://wg21.link/LWG3435>`__","``three_way_comparable_with<reverse_iterator<int*>, reverse_iterator<const int*>>``","November 2020","|Complete|","13.0"
-"`3432 <https://wg21.link/LWG3432>`__","Missing requirement for ``comparison_category``","November 2020","","","|spaceship|"
+"`3432 <https://wg21.link/LWG3432>`__","Missing requirement for ``comparison_category``","November 2020","|Complete|","16.0","|spaceship|"
-"`3447 <https://wg21.link/LWG3447>`__","Deduction guides for ``take_view`` and ``drop_view`` have different constraints","November 2020","|Complete|","14.0"
+"`3447 <https://wg21.link/LWG3447>`__","Deduction guides for ``take_view`` and ``drop_view`` have different constraints","November 2020","|Complete|","14.0","|ranges|"
-"`3450 <https://wg21.link/LWG3450>`__","The const overloads of ``take_while_view::begin/end`` are underconstrained","November 2020","","","|ranges|"
+"`3450 <https://wg21.link/LWG3450>`__","The const overloads of ``take_while_view::begin/end`` are underconstrained","November 2020","|Complete|","16.0","|ranges|"
 "`3464 <https://wg21.link/LWG3464>`__","``istream::gcount()`` can overflow","November 2020","",""
 "`2731 <https://wg21.link/LWG2731>`__","Existence of ``lock_guard<MutexTypes...>::mutex_type`` typedef unclear","November 2020","|Complete|","5.0"
 "`2743 <https://wg21.link/LWG2743>`__","P0083R3 ``node_handle`` private members missing ""exposition only"" comment","November 2020","|Nothing To Do|",""
@@ -22,26 +22,26 @@
 "`3403 <https://wg21.link/LWG3403>`__","Domain of ``ranges::ssize(E)`` doesn't ``match ranges::size(E)``","November 2020","","","|ranges|"
 "`3404 <https://wg21.link/LWG3404>`__","Finish removing subrange's conversions from pair-like","November 2020","","","|ranges|"
 "`3405 <https://wg21.link/LWG3405>`__","``common_view``'s converting constructor is bad, too","November 2020","|Complete|","14.0","|ranges|"
-"`3406 <https://wg21.link/LWG3406>`__","``elements_view::begin()`` and ``elements_view::end()`` have incompatible constraints","November 2020","","","|ranges|"
+"`3406 <https://wg21.link/LWG3406>`__","``elements_view::begin()`` and ``elements_view::end()`` have incompatible constraints","November 2020","|Complete|","16.0","|ranges|"
 "`3419 <https://wg21.link/LWG3419>`__","[algorithms.requirements]/15 doesn't reserve as many rights as it intends to","November 2020","|Nothing To Do|",""
 "`3420 <https://wg21.link/LWG3420>`__","cpp17-iterator should check that the type looks like an iterator first","November 2020","|Complete|","14.0","|ranges|"
 "`3421 <https://wg21.link/LWG3421>`__","Imperfect ADL emulation for boolean-testable","November 2020","|Nothing To Do|","","|ranges|"
 "`3425 <https://wg21.link/LWG3425>`__","``condition_variable_any`` fails to constrain its Lock parameters","November 2020","|Nothing To Do|",""
-"`3426 <https://wg21.link/LWG3426>`__","``operator<=>(const unique_ptr<T, D>&, nullptr_t)`` can't get no satisfaction","November 2020","","","|spaceship|"
+"`3426 <https://wg21.link/LWG3426>`__","``operator<=>(const unique_ptr<T, D>&, nullptr_t)`` can't get no satisfaction","November 2020","|Complete|","16.0","|spaceship|"
-"`3427 <https://wg21.link/LWG3427>`__","``operator<=>(const shared_ptr<T>&, nullptr_t)`` definition ill-formed","November 2020","","","|spaceship|"
+"`3427 <https://wg21.link/LWG3427>`__","``operator<=>(const shared_ptr<T>&, nullptr_t)`` definition ill-formed","November 2020","|Complete|","16.0","|spaceship|"
 "`3428 <https://wg21.link/LWG3428>`__","``single_view``'s in place constructor should be explicit","November 2020","|Complete|","14.0","|ranges|"
 "`3434 <https://wg21.link/LWG3434>`__","``ios_base`` never reclaims memory for iarray and parray","November 2020","|Nothing To Do|",""
 "`3437 <https://wg21.link/LWG3437>`__","``__cpp_lib_polymorphic_allocator`` is in the wrong header","November 2020","|Complete|","14.0"
 "`3446 <https://wg21.link/LWG3446>`__","``indirectly_readable_traits`` ambiguity for types with both ``value_type`` and ``element_type``","November 2020","|Complete|","14.0","|ranges|"
 "`3448 <https://wg21.link/LWG3448>`__","``transform_view``'s ``sentinel<false>`` not comparable with ``iterator<true>``","November 2020","","","|ranges|"
-"`3449 <https://wg21.link/LWG3449>`__","``take_view`` and ``take_while_view``'s ``sentinel<false>`` not comparable with their ``const iterator``","November 2020","","","|ranges|"
+"`3449 <https://wg21.link/LWG3449>`__","``take_view`` and ``take_while_view``'s ``sentinel<false>`` not comparable with their ``const iterator``","November 2020","|Complete|","16.0","|ranges|"
 "`3453 <https://wg21.link/LWG3453>`__","Generic code cannot call ``ranges::advance(i, s)``","November 2020","|Nothing To Do|","","|ranges|"
 "`3455 <https://wg21.link/LWG3455>`__","Incorrect Postconditions on ``unique_ptr`` move assignment","November 2020","|Nothing To Do|",""
 "`3460 <https://wg21.link/LWG3460>`__","Unimplementable ``noop_coroutine_handle`` guarantees","November 2020","|Complete|","14.0"
 "`3461 <https://wg21.link/LWG3461>`__","``convertible_to``'s description mishandles cv-qualified ``void``","November 2020","|Nothing To Do|",""
 "`3465 <https://wg21.link/LWG3465>`__","``compare_partial_order_fallback`` requires ``F < E``","November 2020","|Complete|","14.0","|spaceship|"
 "`3466 <https://wg21.link/LWG3466>`__","Specify the requirements for ``promise``/``future``/``shared_future`` consistently","November 2020","|Nothing To Do|",""
-"`3467 <https://wg21.link/LWG3467>`__","``bool`` can't be an integer-like type","November 2020","|Complete|","14.0"
+"`3467 <https://wg21.link/LWG3467>`__","``bool`` can't be an integer-like type","November 2020","|Complete|","14.0","|ranges|"
 "`3472 <https://wg21.link/LWG3472>`__","``counted_iterator`` is missing preconditions","November 2020","|Complete|","14.0","|ranges|"
 "`3473 <https://wg21.link/LWG3473>`__","Normative encouragement in non-normative note","November 2020","|Complete|","15.0","|format|"
 "`3474 <https://wg21.link/LWG3474>`__","Nesting ``join_views`` is broken because of CTAD","November 2020","|Complete|","15.0","|ranges|"
@@ -49,17 +49,17 @@
 "`3477 <https://wg21.link/LWG3477>`__","Simplify constraints for ``semiregular-box``","November 2020","","","|ranges|"
 "`3482 <https://wg21.link/LWG3482>`__","``drop_view``'s const begin should additionally require ``sized_range``","November 2020","|Complete|","14.0","|ranges|"
 "`3483 <https://wg21.link/LWG3483>`__","``transform_view::iterator``'s difference is overconstrained","November 2020","|Complete|","14.0","|ranges|"
-"","","","",""
+"","","","","",""
 "`3391 <https://wg21.link/LWG3391>`__","Problems with ``counted_iterator``/``move_iterator::base() const &``","February 2021","","","|ranges|"
 "`3433 <https://wg21.link/LWG3433>`__","``subrange::advance(n)`` has UB when ``n < 0``","February 2021","|Complete|","14.0","|ranges|"
 "`3490 <https://wg21.link/LWG3490>`__","``ranges::drop_while_view::begin()`` is missing a precondition","February 2021","|Nothing To Do|","","|ranges|"
-"`3492 <https://wg21.link/LWG3492>`__","Minimal improvements to ``elements_view::iterator``","February 2021","","","|ranges|"
+"`3492 <https://wg21.link/LWG3492>`__","Minimal improvements to ``elements_view::iterator``","February 2021","|Complete|","16.0","|ranges|"
 "`3494 <https://wg21.link/LWG3494>`__","Allow ranges to be conditionally borrowed","February 2021","Superseded by `P2017R1 <https://wg21.link/P2017R1>`__","","|ranges|"
 "`3495 <https://wg21.link/LWG3495>`__","``constexpr launder`` makes pointers to inactive members of unions usable","February 2021","|Nothing To Do|",""
 "`3500 <https://wg21.link/LWG3500>`__","``join_view::iterator::operator->()`` is bogus","February 2021","|Complete|","14.0","|ranges|"
-"`3502 <https://wg21.link/LWG3502>`__","``elements_view`` should not be allowed to return dangling reference","February 2021","","","|ranges|"
+"`3502 <https://wg21.link/LWG3502>`__","``elements_view`` should not be allowed to return dangling reference","February 2021","|Complete|","16.0","|ranges|"
 "`3505 <https://wg21.link/LWG3505>`__","``split_view::outer-iterator::operator++`` misspecified","February 2021","","","|ranges|"
-"","","","",""
+"","","","","",""
 `2774 <https://wg21.link/LWG2774>`__,"``std::function`` construction vs assignment","June 2021","",""
 `2818 <https://wg21.link/LWG2818>`__,"``::std::`` everywhere rule needs tweaking","June 2021","|Nothing To Do|",""
 `2997 <https://wg21.link/LWG2997>`__,"LWG 491 and the specification of ``{forward_,}list::unique``","June 2021","",""
@@ -73,7 +73,7 @@
 `3519 <https://wg21.link/LWG3519>`__,"Incomplete synopses for ``<random>`` classes","June 2021","",""
 `3520 <https://wg21.link/LWG3520>`__,"``iter_move`` and ``iter_swap`` are inconsistent for ``transform_view::iterator``","June 2021","|Complete|","14.0","|ranges|"
 `3521 <https://wg21.link/LWG3521>`__,"Overly strict requirements on ``qsort`` and ``bsearch``","June 2021","|Nothing To Do|",""
-`3522 <https://wg21.link/LWG3522>`__,"Missing requirement on ``InputIterator`` template parameter for ``priority_queue`` constructors","June 2021","|Complete|","14.0","|ranges|"
+`3522 <https://wg21.link/LWG3522>`__,"Missing requirement on ``InputIterator`` template parameter for ``priority_queue`` constructors","June 2021","|Complete|","14.0"
 `3523 <https://wg21.link/LWG3523>`__,"``iota_view::sentinel`` is not always ``iota_view``'s sentinel","June 2021","","","|ranges|"
 `3526 <https://wg21.link/LWG3526>`__,"Return types of ``uses_allocator_construction_args`` unspecified","June 2021","",""
 `3527 <https://wg21.link/LWG3527>`__,"``uses_allocator_construction_args`` handles rvalue pairs of rvalue references incorrectly","June 2021","",""
@@ -83,7 +83,7 @@
 `3532 <https://wg21.link/LWG3532>`__,"``split_view<V, P>::inner-iterator<true>::operator++(int)`` should depend on ``Base``","June 2021","","","|ranges|"
 `3533 <https://wg21.link/LWG3533>`__,"Make ``base() const &`` consistent across iterator wrappers that supports ``input_iterators``","June 2021","|Complete|","14.0","|ranges|"
 `3536 <https://wg21.link/LWG3536>`__,"Should ``chrono::from_stream()`` assign zero to duration for failure?","June 2021","","","|chrono|"
-`3539 <https://wg21.link/LWG3539>`__,"``format_to`` must not copy models of ``output_iterator<const charT&>``","June 2021","","","|format|"
+`3539 <https://wg21.link/LWG3539>`__,"``format_to`` must not copy models of ``output_iterator<const charT&>``","June 2021","|Complete|","14.0","|format|"
 `3540 <https://wg21.link/LWG3540>`__,"§[format.arg] There should be no const in ``basic_format_arg(const T* p)``","June 2021","|Complete|","14.0","|format|"
 `3541 <https://wg21.link/LWG3541>`__,"``indirectly_readable_traits`` should be SFINAE-friendly for all types","June 2021","|Complete|","14.0","|ranges|"
 `3542 <https://wg21.link/LWG3542>`__,"``basic_format_arg`` mishandles ``basic_string_view`` with custom traits","June 2021","|Complete|","14.0","|format|"
@@ -96,7 +96,7 @@
 `3552 <https://wg21.link/LWG3552>`__,"Parallel specialized memory algorithms should require forward iterators","June 2021","",""
 `3553 <https://wg21.link/LWG3553>`__,"Useless constraint in ``split_view::outer-iterator::value_type::begin()``","June 2021","","","|ranges|"
 `3555 <https://wg21.link/LWG3555>`__,"``{transform,elements}_view::iterator::iterator_concept`` should consider const-qualification of the underlying range","June 2021","","","|ranges|"
-"","","","",""
+"","","","","",""
 `2191 <https://wg21.link/LWG2191>`__,"Incorrect specification of ``match_results(match_results&&)``","October 2021","|Nothing To Do|",""
 `2381 <https://wg21.link/LWG2381>`__,"Inconsistency in parsing floating point numbers","October 2021","",""
 `2762 <https://wg21.link/LWG2762>`__,"``unique_ptr operator*()`` should be ``noexcept``","October 2021","",""
@@ -104,7 +104,7 @@
 `3123 <https://wg21.link/LWG3123>`__,"``duration`` constructor from representation shouldn't be effectively non-throwing","October 2021","","","|chrono|"
 `3146 <https://wg21.link/LWG3146>`__,"Excessive unwrapping in ``std::ref/cref``","October 2021","|Complete|","14.0"
 `3152 <https://wg21.link/LWG3152>`__,"``common_type`` and ``common_reference`` have flaws in common","October 2021","",""
-`3293 <https://wg21.link/LWG3293>`__,"``move_iterator operator+()`` has incorrect constraints","October 2021","|Complete|","15.0","|ranges|"
+`3293 <https://wg21.link/LWG3293>`__,"``move_iterator operator+()`` has incorrect constraints","October 2021","|Complete|","15.0"
 `3361 <https://wg21.link/LWG3361>`__,"``safe_range<SomeRange&>`` case","October 2021","|Nothing To Do|","","|ranges|"
 `3392 <https://wg21.link/LWG3392>`__,"``ranges::distance()`` cannot be used on a move-only iterator with a sized sentinel","October 2021","|Complete|","14.0","|ranges|"
 `3407 <https://wg21.link/LWG3407>`__,"Some problems with the wording changes of P1739R4","October 2021","|Complete|","15.0","|ranges|"
@@ -120,8 +120,8 @@
 `3561 <https://wg21.link/LWG3561>`__,"Issue with internal counter in ``discard_block_engine``","October 2021","",""
 `3563 <https://wg21.link/LWG3563>`__,"``keys_view`` example is broken","October 2021","","","|ranges|"
 `3566 <https://wg21.link/LWG3566>`__,"Constraint recursion for ``operator<=>(optional<T>, U)``","October 2021","","","|spaceship|"
-`3567 <https://wg21.link/LWG3567>`__,"Formatting move-only iterators take two","October 2021","","","|format|"
+`3567 <https://wg21.link/LWG3567>`__,"Formatting move-only iterators take two","October 2021","|Complete|","16.0","|format| |ranges|"
-`3568 <https://wg21.link/LWG3568>`__,"``basic_istream_view`` needs to initialize ``value_``","October 2021","","","|ranges|"
+`3568 <https://wg21.link/LWG3568>`__,"``basic_istream_view`` needs to initialize ``value_``","October 2021","|Complete|","16.0","|ranges|"
 `3570 <https://wg21.link/LWG3570>`__,"``basic_osyncstream::emit`` should be an unformatted output function","October 2021","",""
 `3571 <https://wg21.link/LWG3571>`__,"``flush_emit`` should set ``badbit`` if the ``emit`` call fails","October 2021","",""
 `3572 <https://wg21.link/LWG3572>`__,"``copyable-box`` should be fully ``constexpr``","October 2021","|Complete|","14.0","|ranges|"
@@ -131,12 +131,12 @@
 `3581 <https://wg21.link/LWG3581>`__,"The range constructor makes ``basic_string_view`` not trivially move constructible","October 2021","|Complete|","14.0","|ranges|"
 `3585 <https://wg21.link/LWG3585>`__,"``variant`` converting assignment with immovable alternative","October 2021","",""
 `3589 <https://wg21.link/LWG3589>`__,"The ``const`` lvalue reference overload of ``get`` for ``subrange`` does not constrain ``I`` to be ``copyable`` when ``N == 0``","October 2021","|Complete|","14.0","|ranges|"
-`3590 <https://wg21.link/LWG3590>`__,"``split_view::base() const &`` is overconstrained","October 2021","","","|ranges|"
+`3590 <https://wg21.link/LWG3590>`__,"``split_view::base() const &`` is overconstrained","October 2021","|Complete|","16.0","|ranges|"
 `3591 <https://wg21.link/LWG3591>`__,"``lazy_split_view<input_view>::inner-iterator::base() &&`` invalidates outer iterators","October 2021","","","|ranges|"
 `3592 <https://wg21.link/LWG3592>`__,"``lazy_split_view`` needs to check the simpleness of Pattern","October 2021","","","|ranges|"
 `3593 <https://wg21.link/LWG3593>`__,"Several iterators' ``base() const &`` and ``lazy_split_view::outer-iterator::value_type::end()`` missing ``noexcept``","October 2021","","","|ranges|"
 `3595 <https://wg21.link/LWG3595>`__,"Exposition-only classes proxy and postfix-proxy for ``common_iterator`` should be fully ``constexpr``","October 2021","|Complete|","14.0","|ranges|"
-"","","","",""
+"","","","","",""
 "`3088 <https://wg21.link/LWG3088>`__","``forward_list::merge`` behaviour unclear when passed ``*this``","February 2022","",""
 "`3471 <https://wg21.link/LWG3471>`__","``polymorphic_allocator::allocate`` does not satisfy ``Cpp17Allocator`` requirements","February 2022","",""
 "`3525 <https://wg21.link/LWG3525>`__","``uses_allocator_construction_args`` fails to handle types convertible to ``pair``","February 2022","",""
@@ -150,15 +150,15 @@
 "`3619 <https://wg21.link/LWG3619>`__","Specification of ``vformat_to`` contains ill-formed ``formatted_size`` calls","February 2022","|Nothing to do|","","|format|"
 "`3621 <https://wg21.link/LWG3621>`__","Remove feature-test macro ``__cpp_lib_monadic_optional`` ","February 2022","|Complete|","15.0"
 "`3632 <https://wg21.link/LWG3632>`__","``unique_ptr`` ""Mandates: This constructor is not selected by class template argument deduction""","February 2022","|Nothing to do|",""
-"`3643 <https://wg21.link/LWG3643>`__","Missing ``constexpr`` in ``std::counted_iterator`` ","February 2022","",""
+"`3643 <https://wg21.link/LWG3643>`__","Missing ``constexpr`` in ``std::counted_iterator`` ","February 2022","","","|ranges|"
 "`3648 <https://wg21.link/LWG3648>`__","``format`` should not print ``bool`` with ``'c'`` ","February 2022","|Complete|","15.0","|format|"
 "`3649 <https://wg21.link/LWG3649>`__","[fund.ts.v2] Reinstate and bump ``__cpp_lib_experimental_memory_resource`` feature test macro","February 2022","",""
 "`3650 <https://wg21.link/LWG3650>`__","Are ``std::basic_string`` 's ``iterator`` and ``const_iterator`` constexpr iterators?","February 2022","|Nothing to do|",""
 "`3654 <https://wg21.link/LWG3654>`__","``basic_format_context::arg(size_t)`` should be ``noexcept`` ","February 2022","|Complete|","15.0","|format|"
 "`3657 <https://wg21.link/LWG3657>`__","``std::hash<std::filesystem::path>`` is not enabled","February 2022","",""
-"`3660 <https://wg21.link/LWG3660>`__","``iterator_traits<common_iterator>::pointer`` should conform to §[iterator.traits]","February 2022","|Complete|","14.0"
+"`3660 <https://wg21.link/LWG3660>`__","``iterator_traits<common_iterator>::pointer`` should conform to §[iterator.traits]","February 2022","|Complete|","14.0","|ranges|"
 "`3661 <https://wg21.link/LWG3661>`__","``constinit atomic<shared_ptr<T>> a(nullptr);`` should work","February 2022","",""
-"","","","",""
+"","","","","",""
 "`3564 <https://wg21.link/LWG3564>`__","``transform_view::iterator<true>::value_type`` and ``iterator_category`` should use ``const F&``","July 2022","","","|ranges|"
 "`3617 <https://wg21.link/LWG3617>`__","``function``/``packaged_task`` deduction guides and deducing ``this``","July 2022","",""
 "`3656 <https://wg21.link/LWG3656>`__","Inconsistent bit operations returning a count","July 2022","|Complete|","15.0",""
@@ -167,25 +167,84 @@
 "`3671 <https://wg21.link/LWG3671>`__","``atomic_fetch_xor`` missing from ``stdatomic.h``","July 2022","",""
 "`3672 <https://wg21.link/LWG3672>`__","``common_iterator::operator->()`` should return by value","July 2022","","","|ranges|"
 "`3683 <https://wg21.link/LWG3683>`__","``operator==`` for ``polymorphic_allocator`` cannot deduce template argument in common cases","July 2022","",""
-"`3687 <https://wg21.link/LWG3687>`__","``expected<cv void, E>`` move constructor should move","July 2022","",""
+"`3687 <https://wg21.link/LWG3687>`__","``expected<cv void, E>`` move constructor should move","July 2022","|Complete|","16.0"
-"`3692 <https://wg21.link/LWG3692>`__","``zip_view::iterator``'s ``operator<=>`` is overconstrained","July 2022","","","|spaceship|"
+"`3692 <https://wg21.link/LWG3692>`__","``zip_view::iterator``'s ``operator<=>`` is overconstrained","July 2022","","","|ranges| |spaceship|"
 "`3701 <https://wg21.link/LWG3701>`__","Make ``formatter<remove_cvref_t<const charT[N]>, charT>`` requirement explicit","July 2022","","","|format|"
-"`3702 <https://wg21.link/LWG3702>`__","Should ``zip_transform_view::iterator`` remove ``operator<``","July 2022","",""
+"`3702 <https://wg21.link/LWG3702>`__","Should ``zip_transform_view::iterator`` remove ``operator<``","July 2022","","","|ranges| |spaceship|"
-"`3703 <https://wg21.link/LWG3703>`__","Missing requirements for ``expected<T, E>`` requires ``is_void<T>``","July 2022","",""
+"`3703 <https://wg21.link/LWG3703>`__","Missing requirements for ``expected<T, E>`` requires ``is_void<T>``","July 2022","|Complete|","16.0"
 "`3704 <https://wg21.link/LWG3704>`__","LWG 2059 added overloads that might be ill-formed for sets","July 2022","",""
-"`3705 <https://wg21.link/LWG3705>`__","Hashability shouldn't depend on basic_string's allocator","July 2022","",""
+"`3705 <https://wg21.link/LWG3705>`__","Hashability shouldn't depend on basic_string's allocator","July 2022","|Complete|","16.0"
 "`3707 <https://wg21.link/LWG3707>`__","chunk_view::outer-iterator::value_type::size should return unsigned type","July 2022","","","|ranges|"
-"`3708 <https://wg21.link/LWG3708>`__","``take_while_view::sentinel``'s conversion constructor should move","July 2022","","","|ranges|"
+"`3708 <https://wg21.link/LWG3708>`__","``take_while_view::sentinel``'s conversion constructor should move","July 2022","|Complete|","16.0","|ranges|"
 "`3709 <https://wg21.link/LWG3709>`__","LWG-3703 was underly ambitious","July 2022","",""
 "`3710 <https://wg21.link/LWG3710>`__","The ``end`` of ``chunk_view`` for input ranges can be ``const``","July 2022","","","|ranges|"
 "`3711 <https://wg21.link/LWG3711>`__","Missing preconditions for slide_view constructor","July 2022","","","|ranges|"
 "`3712 <https://wg21.link/LWG3712>`__","``chunk_view`` and ``slide_view`` should not be ``default_initializable``","July 2022","","","|ranges|"
 "`3713 <https://wg21.link/LWG3713>`__","Sorted with respect to comparator (only)","July 2022","",""
-"`3715 <https://wg21.link/LWG3715>`__","``view_interface::empty`` is overconstrained","July 2022","",""
+"`3715 <https://wg21.link/LWG3715>`__","``view_interface::empty`` is overconstrained","July 2022","","","|ranges|"
-"`3719 <https://wg21.link/LWG3719>`__","Directory iterators should be usable with default sentinel","July 2022","",""
+"`3719 <https://wg21.link/LWG3719>`__","Directory iterators should be usable with default sentinel","July 2022","","","|ranges|"
-"`3721 <https://wg21.link/LWG3721>`__","Allow an ``arg-id`` with a value of zero for ``width`` in ``std-format-spec``","July 2022","","","|format|"
+"`3721 <https://wg21.link/LWG3721>`__","Allow an ``arg-id`` with a value of zero for ``width`` in ``std-format-spec``","July 2022","|Complete|","16.0","|format|"
 "`3724 <https://wg21.link/LWG3724>`__","``decay-copy`` should be constrained","July 2022","|Complete|","14.0"
-"","","","",""
+"","","","","",""
-"`3645 <https://wg21.link/LWG3645>`__","``resize_and_overwrite`` is overspecified to call its callback with lvalues","Not voted in","|Complete|","14.0",""
+"`3028 <https://wg21.link/LWG3028>`__","Container requirements tables should distinguish ``const`` and non-``const`` variables", "November 2022","","",""
+"`3118 <https://wg21.link/LWG3118>`__","``fpos`` equality comparison unspecified", "November 2022","","",""
+"`3177 <https://wg21.link/LWG3177>`__","Limit permission to specialize variable templates to program-defined types", "November 2022","|Nothing to do|","",""
+"`3515 <https://wg21.link/LWG3515>`__","§[stacktrace.basic.nonmem]: ``operator<<`` should be less templatized", "November 2022","","",""
+"`3545 <https://wg21.link/LWG3545>`__","``std::pointer_traits`` should be SFINAE-friendly", "November 2022","","",""
+"`3569 <https://wg21.link/LWG3569>`__","``join_view`` fails to support ranges of ranges with non-default_initializable iterators", "November 2022","","","|ranges|"
+"`3594 <https://wg21.link/LWG3594>`__","``inout_ptr`` — inconsistent ``release()`` in destructor", "November 2022","","",""
+"`3597 <https://wg21.link/LWG3597>`__","Unsigned integer types don't model advanceable", "November 2022","","","|ranges|"
+"`3600 <https://wg21.link/LWG3600>`__","Making ``istream_iterator`` copy constructor trivial is an ABI break", "November 2022","","",""
+"`3629 <https://wg21.link/LWG3629>`__","``make_error_code`` and ``make_error_condition`` are customization points","November 2022","|Complete|","16.0",""
+"`3636 <https://wg21.link/LWG3636>`__","``formatter<T>::format`` should be ``const``-qualified","November 2022","|Complete|","16.0","|format|"
+"`3646 <https://wg21.link/LWG3646>`__","``std::ranges::view_interface::size`` returns a signed type","November 2022","|Complete|","16.0","|ranges|"
+"`3677 <https://wg21.link/LWG3677>`__","Is a cv-qualified ``pair`` specially handled in uses-allocator construction?", "November 2022","","",""
+"`3717 <https://wg21.link/LWG3717>`__","``common_view::end`` should improve ``random_access_range`` case", "November 2022","","","|ranges|"
+"`3732 <https://wg21.link/LWG3732>`__","``prepend_range`` and ``append_range`` can't be amortized constant time", "November 2022","|Nothing to do|","","|ranges|"
+"`3736 <https://wg21.link/LWG3736>`__","``move_iterator`` missing ``disable_sized_sentinel_for`` specialization", "November 2022","","","|ranges|"
+"`3737 <https://wg21.link/LWG3737>`__","``take_view::sentinel`` should provide ``operator-``", "November 2022","","","|ranges|"
+"`3738 <https://wg21.link/LWG3738>`__","Missing preconditions for ``take_view`` constructor", "November 2022","|Complete|","16.0","|ranges|"
+"`3743 <https://wg21.link/LWG3743>`__","``ranges::to``'s reserve may be ill-formed", "November 2022","","","|ranges|"
+"`3745 <https://wg21.link/LWG3745>`__","``std::atomic_wait`` and its friends lack ``noexcept``", "November 2022","|Complete|","16.0",""
+"`3746 <https://wg21.link/LWG3746>`__","``optional``'s spaceship with ``U`` with a type derived from optional causes infinite constraint meta-recursion", "November 2022","","","|spaceship|"
+"`3747 <https://wg21.link/LWG3747>`__","``ranges::uninitialized_copy_n``, ``ranges::uninitialized_move_n``, and ``ranges::destroy_n`` should use ``std::move``", "November 2022","","","|ranges|"
+"`3750 <https://wg21.link/LWG3750>`__","Too many papers bump ``__cpp_lib_format``", "November 2022","","","|format|"
+"`3751 <https://wg21.link/LWG3751>`__","Missing feature macro for ``flat_set``", "November 2022","","","|flat_containers|"
+"`3753 <https://wg21.link/LWG3753>`__","Clarify entity vs. freestanding entity", "November 2022","","",""
+"`3754 <https://wg21.link/LWG3754>`__","Class template expected synopsis contains declarations that do not match the detailed description", "November 2022","","",""
+"`3755 <https://wg21.link/LWG3755>`__","``tuple-for-each`` can call ``user-defined`` ``operator,``", "November 2022","","",""
+"`3757 <https://wg21.link/LWG3757>`__","What's the effect of ``std::forward_like<void>(x)``?", "November 2022","","",""
+"`3759 <https://wg21.link/LWG3759>`__","``ranges::rotate_copy`` should use ``std::move``", "November 2022","","","|ranges|"
+"`3760 <https://wg21.link/LWG3760>`__","``cartesian_product_view::iterator``'s ``parent_`` is never valid", "November 2022","","","|ranges|"
+"`3761 <https://wg21.link/LWG3761>`__","``cartesian_product_view::iterator::operator-`` should pass by reference", "November 2022","","","|ranges|"
+"`3762 <https://wg21.link/LWG3762>`__","``generator::iterator::operator==`` should pass by reference", "November 2022","","",""
+"`3764 <https://wg21.link/LWG3764>`__","``reference_wrapper::operator()`` should propagate noexcept", "November 2022","","",""
+"`3765 <https://wg21.link/LWG3765>`__","``const_sentinel`` should be constrained", "November 2022","","","|ranges|"
+"`3766 <https://wg21.link/LWG3766>`__","``view_interface::cbegin`` is underconstrained", "November 2022","","","|ranges|"
+"`3770 <https://wg21.link/LWG3770>`__","``const_sentinel_t`` is missing", "November 2022","","","|ranges|"
+"`3773 <https://wg21.link/LWG3773>`__","``views::zip_transform`` still requires ``F`` to be ``copy_constructible`` when empty pack", "November 2022","","","|ranges|"
+"`3774 <https://wg21.link/LWG3774>`__","``<flat_set>`` should include ``<compare>``", "November 2022","","","|flat_containers|"
+"`3775 <https://wg21.link/LWG3775>`__","Broken dependencies in the ``Cpp17Allocator`` requirements", "November 2022","","",""
+"`3778 <https://wg21.link/LWG3778>`__","``vector<bool>`` missing exception specifications", "November 2022","","",""
+"`3781 <https://wg21.link/LWG3781>`__","The exposition-only alias templates ``cont-key-type`` and ``cont-mapped-type`` should be removed", "November 2022","","",""
+"`3782 <https://wg21.link/LWG3782>`__","Should ``<math.h>`` declare ``::lerp``?", "November 2022","","",""
+"`3784 <https://wg21.link/LWG3784>`__","std.compat should not provide ``::byte`` and its friends", "November 2022","","",""
+"`3785 <https://wg21.link/LWG3785>`__","``ranges::to`` is over-constrained on the destination type being a range", "November 2022","","","|ranges|"
+"`3788 <https://wg21.link/LWG3788>`__","``jthread::operator=(jthread&&)`` postconditions are unimplementable under self-assignment", "November 2022","","",""
+"`3792 <https://wg21.link/LWG3792>`__","``__cpp_lib_constexpr_algorithms`` should also be defined in ``<utility>``", "November 2022","|Complete|","16.0",""
+"`3795 <https://wg21.link/LWG3795>`__","Self-move-assignment of ``std::future`` and ``std::shared_future`` have unimplementable postconditions", "November 2022","","",""
+"`3796 <https://wg21.link/LWG3796>`__","``movable-box`` as member should use ``default-initialization`` instead of ``copy-initialization``", "November 2022","","","|ranges|"
+"`3798 <https://wg21.link/LWG3798>`__","Rvalue reference and ``iterator_category``", "November 2022","","",""
+"`3801 <https://wg21.link/LWG3801>`__","``cartesian_product_view::iterator::distance-from`` ignores the size of last underlying range", "November 2022","","","|ranges|"
+"`3814 <https://wg21.link/LWG3814>`__","Add freestanding items requested by NB comments", "November 2022","","",""
+"`3816 <https://wg21.link/LWG3816>`__","``flat_map`` and ``flat_multimap`` should impose sequence container requirements", "November 2022","","","|flat_containers|"
+"`3817 <https://wg21.link/LWG3817>`__","Missing preconditions on ``forward_list`` modifiers", "November 2022","","",""
+"`3818 <https://wg21.link/LWG3818>`__","Exposition-only concepts are not described in library intro", "November 2022","|Nothing to do|","",""
+"`3822 <https://wg21.link/LWG3822>`__","Avoiding normalization in ``filesystem::weakly_canonical``", "November 2022","","",""
+"`3823 <https://wg21.link/LWG3823>`__","Unnecessary precondition for ``is_aggregate``", "November 2022","","",""
+"`3824 <https://wg21.link/LWG3824>`__","Number of ``bind`` placeholders is underspecified", "November 2022","|Nothing to do|","",""
+"`3826 <https://wg21.link/LWG3826>`__","Redundant specification [for overload of yield_value]", "November 2022","","",""
+"","","","","",""
 "`3631 <https://wg21.link/LWG3631>`__","``basic_format_arg(T&&)`` should use ``remove_cvref_t<T>`` throughout","Not voted in","|Complete|","15.0",""
-"","","","",""
+"`3645 <https://wg21.link/LWG3645>`__","``resize_and_overwrite`` is overspecified to call its callback with lvalues","Not voted in","|Complete|","14.0",""
+"`3343 <https://wg21.link/LWG3343>`__","Ordering of calls to ``unlock()`` and ``notify_all()`` in Effects element of ``notify_all_at_thread_exit()`` should be reversed","Not Yet Adopted","|Complete|","16.0",""

docs/Status/Cxx2bPapers.csv

@@ -1,28 +1,28 @@
-"Paper #","Group","Paper Name","Meeting","Status","First released version"
+"Paper #","Group","Paper Name","Meeting","Status","First released version","Labels"
 "`P0881R7 <https://wg21.link/P0881R7>`__","LWG","A Proposal to add stacktrace library","Autumn 2020","",""
 "`P0943R6 <https://wg21.link/P0943R6>`__","LWG","Support C atomics in C++","Autumn 2020","|Complete|","15.0"
 "`P1048R1 <https://wg21.link/P1048R1>`__","LWG","A proposal for a type trait to detect scoped enumerations","Autumn 2020","|Complete|","12.0"
 "`P1679R3 <https://wg21.link/P1679R3>`__","LWG","string contains function","Autumn 2020","|Complete|","12.0"
-"","","","","",""
+"","","","","","",""
 "`P1682R3 <https://wg21.link/P1682R3>`__","LWG","std::to_underlying for enumerations","February 2021","|Complete|","13.0"
-"`P2017R1 <https://wg21.link/P2017R1>`__","LWG","Conditionally borrowed ranges","February 2021","",""
+"`P2017R1 <https://wg21.link/P2017R1>`__","LWG","Conditionally borrowed ranges","February 2021","","","|ranges|"
 "`P2160R1 <https://wg21.link/P2160R1>`__","LWG","Locks lock lockables","February 2021","",""
 "`P2162R2 <https://wg21.link/P2162R2>`__","LWG","Inheriting from std::variant","February 2021","|Complete|","13.0"
 "`P2212R2 <https://wg21.link/P2212R2>`__","LWG","Relax Requirements for time_point::clock","February 2021","",""
-"`P2259R1 <https://wg21.link/P2259R1>`__","LWG","Repairing input range adaptors and counted_iterator","February 2021","",""
+"`P2259R1 <https://wg21.link/P2259R1>`__","LWG","Repairing input range adaptors and counted_iterator","February 2021","","","|ranges|"
-"","","","","",""
+"","","","","","",""
 "`P0401R6 <https://wg21.link/P0401R6>`__","LWG","Providing size feedback in the Allocator interface","June 2021","|Complete|","15.0"
 "`P0448R4 <https://wg21.link/P0448R4>`__","LWG","A strstream replacement using span<charT> as buffer","June 2021","",""
 "`P1132R8 <https://wg21.link/P1132R8>`__","LWG","out_ptr - a scalable output pointer abstraction","June 2021","",""
 "`P1328R1 <https://wg21.link/P1328R1>`__","LWG","Making std::type_info::operator== constexpr","June 2021","",""
-"`P1425R4 <https://wg21.link/P1425R4>`__","LWG","Iterators pair constructors for stack and queue","June 2021","|Complete|","14.0"
+"`P1425R4 <https://wg21.link/P1425R4>`__","LWG","Iterators pair constructors for stack and queue","June 2021","|Complete|","14.0","|ranges|"
 "`P1518R2 <https://wg21.link/P1518R2>`__","LWG","Stop overconstraining allocators in container deduction guides","June 2021","|Complete|","13.0"
-"`P1659R3 <https://wg21.link/P1659R3>`__","LWG","starts_with and ends_with","June 2021","",""
+"`P1659R3 <https://wg21.link/P1659R3>`__","LWG","starts_with and ends_with","June 2021","","","|ranges|"
 "`P1951R1 <https://wg21.link/P1951R1>`__","LWG","Default Arguments for pair Forwarding Constructor","June 2021","|Complete|","14.0"
-"`P1989R2 <https://wg21.link/P1989R2>`__","LWG","Range constructor for std::string_view","June 2021","|Complete|","14.0"
+"`P1989R2 <https://wg21.link/P1989R2>`__","LWG","Range constructor for std::string_view","June 2021","|Complete|","14.0","|ranges|"
 "`P2136R3 <https://wg21.link/P2136R3>`__","LWG","invoke_r","June 2021","",""
 "`P2166R1 <https://wg21.link/P2166R1>`__","LWG","A Proposal to Prohibit std::basic_string and std::basic_string_view construction from nullptr","June 2021","|Complete|","13.0"
-"","","","","",""
+"","","","","","",""
 "`P0288R9 <https://wg21.link/P0288R9>`__","LWG","``any_invocable``","October 2021","",""
 "`P0798R8 <https://wg21.link/P0798R8>`__","LWG","Monadic operations for ``std::optional``","October 2021","|Complete|","14.0"
 "`P0849R8 <https://wg21.link/P0849R8>`__","LWG","``auto(x)``: ``DECAY_COPY`` in the language","October 2021","|Complete|","14.0"
@@ -33,65 +33,74 @@
 "`P2077R3 <https://wg21.link/P2077R3>`__","LWG","Heterogeneous erasure overloads for associative containers","October 2021","",""
 "`P2251R1 <https://wg21.link/P2251R1>`__","LWG","Require ``span`` & ``basic_string_view`` to be Trivially Copyable","October 2021","|Complete|","14.0"
 "`P2301R1 <https://wg21.link/P2301R1>`__","LWG","Add a ``pmr`` alias for ``std::stacktrace``","October 2021","",""
-"`P2321R2 <https://wg21.link/P2321R2>`__","LWG","``zip``","October 2021","|In Progress|",""
+"`P2321R2 <https://wg21.link/P2321R2>`__","LWG","``zip``","October 2021","|In Progress|","","|ranges|"
 "`P2340R1 <https://wg21.link/P2340R1>`__","LWG","Clarifying the status of the 'C headers'","October 2021","",""
 "`P2393R1 <https://wg21.link/P2393R1>`__","LWG","Cleaning up ``integer``-class types","October 2021","",""
 "`P2401R0 <https://wg21.link/P2401R0>`__","LWG","Add a conditional ``noexcept`` specification to ``std::exchange``","October 2021","|Complete|","14.0"
-"","","","","",""
+"","","","","","",""
-"`P0323R12 <https://wg21.link/P0323R12>`__","LWG","``std::expected``","February 2022","",""
+"`P0323R12 <https://wg21.link/P0323R12>`__","LWG","``std::expected``","February 2022","|Complete|","16.0"
-"`P0533R9 <https://wg21.link/P0533R9>`__","LWG","``constexpr`` for ``<cmath>`` and ``<cstdlib>``","February 2022","",""
+"`P0533R9 <https://wg21.link/P0533R9>`__","LWG","``constexpr`` for ``<cmath>`` and ``<cstdlib>``","February 2022","|In progress| [#note-P0533R9]_",""
 "`P0627R6 <https://wg21.link/P0627R6>`__","LWG","Function to mark unreachable code","February 2022","|Complete|","15.0"
-"`P1206R7 <https://wg21.link/P1206R7>`__","LWG","``ranges::to``: A function to convert any range to a container","February 2022","",""
+"`P1206R7 <https://wg21.link/P1206R7>`__","LWG","``ranges::to``: A function to convert any range to a container","February 2022","","","|ranges|"
-"`P1413R3 <https://wg21.link/P1413R3>`__","LWG","Deprecate ``std::aligned_storage`` and ``std::aligned_union``","February 2022","",""
+"`P1413R3 <https://wg21.link/P1413R3>`__","LWG","Deprecate ``std::aligned_storage`` and ``std::aligned_union``","February 2022","|Complete| [#note-P1413R3]_",""
-"`P2255R3 <https://wg21.link/P2255R3>`__","LWG","A type trait to detect reference binding to temporary","February 2022","",""
+"`P2255R2 <https://wg21.link/P2255R2>`__","LWG","A type trait to detect reference binding to temporary","February 2022","",""
-"`P2273R3 <https://wg21.link/P2273R3>`__","LWG","Making ``std::unique_ptr`` constexpr","February 2022","",""
+"`P2273R3 <https://wg21.link/P2273R3>`__","LWG","Making ``std::unique_ptr`` constexpr","February 2022","|Complete|","16.0"
-"`P2387R3 <https://wg21.link/P2387R3>`__","LWG","Pipe support for user-defined range adaptors","February 2022","",""
+"`P2387R3 <https://wg21.link/P2387R3>`__","LWG","Pipe support for user-defined range adaptors","February 2022","","","|ranges|"
-"`P2440R1 <https://wg21.link/P2440R1>`__","LWG","``ranges::iota``, ``ranges::shift_left`` and ``ranges::shift_right``","February 2022","",""
+"`P2440R1 <https://wg21.link/P2440R1>`__","LWG","``ranges::iota``, ``ranges::shift_left`` and ``ranges::shift_right``","February 2022","","","|ranges|"
-"`P2441R2 <https://wg21.link/P2441R2>`__","LWG","``views::join_view``","February 2022","",""
+"`P2441R2 <https://wg21.link/P2441R2>`__","LWG","``views::join_with``","February 2022","","","|ranges|"
-"`P2442R1 <https://wg21.link/P2442R1>`__","LWG","Windowing range adaptors: ``views::chunk`` and ``views::slide``","February 2022","",""
+"`P2442R1 <https://wg21.link/P2442R1>`__","LWG","Windowing range adaptors: ``views::chunk`` and ``views::slide``","February 2022","","","|ranges|"
-"`P2443R1 <https://wg21.link/P2443R1>`__","LWG","``views::chunk_by``","February 2022","",""
+"`P2443R1 <https://wg21.link/P2443R1>`__","LWG","``views::chunk_by``","February 2022","","","|ranges|"
-"","","","","",""
+"","","","","","",""
 "`P0009R18 <https://wg21.link/P0009R18>`__","LWG","mdspan: A Non-Owning Multidimensional Array Reference","July 2022","",""
 "`P0429R9 <https://wg21.link/P0429R9>`__","LWG","A Standard ``flat_map``","July 2022","",""
-"`P1169R4 <https://wg21.link/P1169R4>`__","LWG","``static operator()``","July 2022","",""
+"`P1169R4 <https://wg21.link/P1169R4>`__","LWG","``static operator()``","July 2022","|Complete|","16.0"
 "`P1222R4 <https://wg21.link/P1222R4>`__","LWG","A Standard ``flat_set``","July 2022","",""
-"`P1223R5 <https://wg21.link/P1223R5>`__","LWG","``ranges::find_last()``, ``ranges::find_last_if()``, and ``ranges::find_last_if_not()``","July 2022","",""
+"`P1223R5 <https://wg21.link/P1223R5>`__","LWG","``ranges::find_last()``, ``ranges::find_last_if()``, and ``ranges::find_last_if_not()``","July 2022","","","|ranges|"
 "`P1467R9 <https://wg21.link/P1467R9>`__","LWG","Extended ``floating-point`` types and standard names","July 2022","",""
 "`P1642R11 <https://wg21.link/P1642R11>`__","LWG","Freestanding ``[utilities]``, ``[ranges]``, and ``[iterators]``","July 2022","",""
-"`P1899R3 <https://wg21.link/P1899R3>`__","LWG","``stride_view``","July 2022","",""
+"`P1899R3 <https://wg21.link/P1899R3>`__","LWG","``stride_view``","July 2022","","","|ranges|"
 "`P2093R14 <https://wg21.link/P2093R14>`__","LWG","Formatted output","July 2022","",""
 "`P2165R4 <https://wg21.link/P2165R4>`__","LWG","Compatibility between ``tuple``, ``pair`` and ``tuple-like`` objects","July 2022","",""
-"`P2278R4 <https://wg21.link/P2278R4>`__","LWG","``cbegin`` should always return a constant iterator","July 2022","",""
+"`P2278R4 <https://wg21.link/P2278R4>`__","LWG","``cbegin`` should always return a constant iterator","July 2022","","","|ranges|"
-"`P2286R8 <https://wg21.link/P2286R8>`__","LWG","Formatting Ranges","July 2022","",""
+"`P2286R8 <https://wg21.link/P2286R8>`__","LWG","Formatting Ranges","July 2022","|Complete|","16.0","|format| |ranges|"
-"`P2291R3 <https://wg21.link/P2291R3>`__","LWG","Add Constexpr Modifiers to Functions ``to_chars`` and ``from_chars`` for Integral Types in ``<charconv>`` Header","July 2022","",""
+"`P2291R3 <https://wg21.link/P2291R3>`__","LWG","Add Constexpr Modifiers to Functions ``to_chars`` and ``from_chars`` for Integral Types in ``<charconv>`` Header","July 2022","|Complete|","16.0"
-"`P2302R4 <https://wg21.link/P2302R4>`__","LWG","``std::ranges::contains``","July 2022","",""
+"`P2302R4 <https://wg21.link/P2302R4>`__","LWG","``std::ranges::contains``","July 2022","","","|ranges|"
-"`P2322R6 <https://wg21.link/P2322R6>`__","LWG","``ranges::fold``","July 2022","",""
+"`P2322R6 <https://wg21.link/P2322R6>`__","LWG","``ranges::fold``","July 2022","","","|ranges|"
-"`P2374R4 <https://wg21.link/P2374R4>`__","LWG","``views::cartesian_product``","July 2022","",""
+"`P2374R4 <https://wg21.link/P2374R4>`__","LWG","``views::cartesian_product``","July 2022","","","|ranges|"
 "`P2404R3 <https://wg21.link/P2404R3>`__","LWG","Move-only types for ``equality_comparable_with``, ``totally_ordered_with``, and ``three_way_comparable_with``","July 2022","",""
-"`P2408R5 <https://wg21.link/P2408R5>`__","LWG","Ranges iterators as inputs to non-Ranges algorithms","July 2022","",""
+"`P2408R5 <https://wg21.link/P2408R5>`__","LWG","Ranges iterators as inputs to non-Ranges algorithms","July 2022","","","|ranges|"
-"`P2417R2 <https://wg21.link/P2417R2>`__","LWG","A more ``constexpr`` ``bitset``","July 2022","",""
+"`P2417R2 <https://wg21.link/P2417R2>`__","LWG","A more ``constexpr`` ``bitset``","July 2022","|Complete|","16.0"
 "`P2419R2 <https://wg21.link/P2419R2>`__","LWG","Clarify handling of encodings in localized formatting of chrono types","July 2022","",""
-"`P2438R2 <https://wg21.link/P2438R2>`__","LWG","``std::string::substr() &&``","July 2022","",""
+"`P2438R2 <https://wg21.link/P2438R2>`__","LWG","``std::string::substr() &&``","July 2022","|Complete|","16.0"
-"`P2445R1 <https://wg21.link/P2445R1>`__","LWG","``forward_like``","July 2022","",""
+"`P2445R1 <https://wg21.link/P2445R1>`__","LWG","``forward_like``","July 2022","|Complete|","16.0"
-"`P2446R2 <https://wg21.link/P2446R2>`__","LWG","``views::as_rvalue``","July 2022","",""
+"`P2446R2 <https://wg21.link/P2446R2>`__","LWG","``views::as_rvalue``","July 2022","|Complete|","16.0","|ranges|"
 "`P2460R2 <https://wg21.link/P2460R2>`__","LWG","Relax requirements on ``wchar_t`` to match existing practices","July 2022","",""
 "`P2465R3 <https://wg21.link/P2465R3>`__","LWG","Standard Library Modules ``std`` and ``std.compat``","July 2022","",""
 "`P2467R1 <https://wg21.link/P2467R1>`__","LWG","Support exclusive mode for ``fstreams``","July 2022","",""
-"`P2474R2 <https://wg21.link/P2474R2>`__","LWG","``views::repeat``","July 2022","",""
+"`P2474R2 <https://wg21.link/P2474R2>`__","LWG","``views::repeat``","July 2022","","","|ranges|"
-"`P2494R2 <https://wg21.link/P2494R2>`__","LWG","Relaxing range adaptors to allow for move only types","July 2022","",""
+"`P2494R2 <https://wg21.link/P2494R2>`__","LWG","Relaxing range adaptors to allow for move only types","July 2022","","","|ranges|"
-"`P2499R0 <https://wg21.link/P2499R0>`__","LWG","``string_view`` range constructor should be ``explicit``","July 2022","",""
+"`P2499R0 <https://wg21.link/P2499R0>`__","LWG","``string_view`` range constructor should be ``explicit``","July 2022","|Complete|","16.0","|ranges|"
-"`P2502R2 <https://wg21.link/P2502R2>`__","LWG","``std::generator``: Synchronous Coroutine Generator for Ranges","July 2022","",""
+"`P2502R2 <https://wg21.link/P2502R2>`__","LWG","``std::generator``: Synchronous Coroutine Generator for Ranges","July 2022","","","|ranges|"
-"`P2508R1 <https://wg21.link/P2508R1>`__","LWG","Exposing ``std::basic-format-string``","July 2022","",""
+"`P2508R1 <https://wg21.link/P2508R1>`__","LWG","Exposing ``std::basic-format-string``","July 2022","|Complete|","15.0"
 "`P2513R4 <https://wg21.link/P2513R4>`__","LWG","``char8_t`` Compatibility and Portability Fixes","July 2022","",""
 "`P2517R1 <https://wg21.link/P2517R1>`__","LWG","Add a conditional ``noexcept`` specification to ``std::apply``","July 2022","",""
-"`P2520R0 <https://wg21.link/P2520R0>`__","LWG","``move_iterator`` should be a random access iterator","July 2022","",""
+"`P2520R0 <https://wg21.link/P2520R0>`__","LWG","``move_iterator`` should be a random access iterator","July 2022","","","|ranges|"
-"`P2540R1 <https://wg21.link/P2540R1>`__","LWG","Empty Product for certain Views","July 2022","",""
+"`P2540R1 <https://wg21.link/P2540R1>`__","LWG","Empty Product for certain Views","July 2022","","","|ranges|"
-"`P2549R1 <https://wg21.link/P2549R1>`__","LWG","``std::unexpected`` should have ``error()`` as member accessor","July 2022","",""
+"`P2549R1 <https://wg21.link/P2549R1>`__","LWG","``std::unexpected`` should have ``error()`` as member accessor","July 2022","|Complete|","16.0"
 "`P2553R1 <https://wg21.link/P2553R1>`__","LWG","Make ``mdspan`` ``size_type`` controllable","July 2022","",""
 "`P2554R0 <https://wg21.link/P2554R0>`__","LWG","C-Array Interoperability of MDSpan","July 2022","",""
-"`P2585R0 <https://wg21.link/P2585R0>`__","LWG","Improving default container formatting","July 2022","",""
+"`P2585R0 <https://wg21.link/P2585R0>`__","LWG","Improving default container formatting","July 2022","|Partial|",""
 "`P2590R2 <https://wg21.link/P2590R2>`__","LWG","Explicit lifetime management","July 2022","",""
 "`P2599R2 <https://wg21.link/P2599R2>`__","LWG","``mdspan::size_type`` should be ``index_type``","July 2022","",""
 "`P2604R0 <https://wg21.link/P2604R0>`__","LWG","mdspan: rename pointer and contiguous","July 2022","",""
 "`P2613R1 <https://wg21.link/P2613R1>`__","LWG","Add the missing ``empty`` to ``mdspan``","July 2022","",""
-"","","","","",""
+"","","","","","",""
+"`P1202R5 <https://wg21.link/P1202R5>`__","LWG", "Asymmetric Fences", "November 2022","","","|concurrency TS|"
+"`P1264R2 <https://wg21.link/P1264R2>`__","LWG", "Revising the wording of ``stream`` input operations", "November 2022","|Complete|","9.0",""
+"`P1478R8 <https://wg21.link/P1478R8>`__","LWG", "``Byte-wise`` ``atomic`` ``memcpy``", "November 2022","","","|concurrency TS|"
+"`P2167R3 <https://wg21.link/P2167R3>`__","LWG", "Improved Proposed Wording for LWG 2114", "November 2022","","",""
+"`P2396R1 <https://wg21.link/P2396R1>`__","LWG", "Concurrency TS 2 fixes ", "November 2022","","","|concurrency TS|"
+"`P2505R5 <https://wg21.link/P2505R5>`__","LWG", "Monadic Functions for ``std::expected``", "November 2022","","",""
+"`P2539R4 <https://wg21.link/P2539R4>`__","LWG", "Should the output of ``std::print`` to a terminal be synchronized with the underlying stream?", "November 2022","","","|format|"
+"`P2602R2 <https://wg21.link/P2602R2>`__","LWG", "Poison Pills are Too Toxic", "November 2022","","","|ranges|"
+"`P2708R1 <https://wg21.link/P2708R1>`__","LWG", "No Further Fundamentals TSes", "November 2022","|Nothing to do|","",""

docs/Status/Format.rst

@@ -13,7 +13,7 @@ libc++ Format Status
 Overview
 ========
 
-This document contains the status of the C++20 Format library in libc++. It is used to
+This document contains the status of the Format library in libc++. It is used to
 track both the status of the sub-projects of the Format library and who is assigned to
 these sub-projects. This is imperative to effective implementation so that work is not
 duplicated and implementors are not blocked by each other.

docs/Status/FormatIssues.csv

@@ -1,10 +1,17 @@
-Number,Name,Assignee,Patch,Status,First released version
+Number,Name,Standard,Assignee,Status,First released version
-`P0645 <https://wg21.link/P0645>`_,"Text Formatting",Mark de Wever,,|Complete|,Clang 14
+`P0645 <https://wg21.link/P0645>`_,"Text Formatting","C++20",Mark de Wever,|Complete|,Clang 14
-`P1652 <https://wg21.link/P1652>`_,"Printf corner cases in std::format",Mark de Wever,"`D103433 <https://reviews.llvm.org/D103433>`__, `D114001 <https://reviews.llvm.org/D114001>`__",|Complete|,Clang 14
+`P1652 <https://wg21.link/P1652>`_,"Printf corner cases in std::format","C++20",Mark de Wever,|Complete|,Clang 14
-`P1892 <https://wg21.link/P1892>`_,"Extended locale-specific presentation specifiers for std::format",Mark de Wever,`D103368 <https://reviews.llvm.org/D103368>`__,|Complete|,Clang 14
+`P1892 <https://wg21.link/P1892>`_,"Extended locale-specific presentation specifiers for std::format","C++20",Mark de Wever,|Complete|,Clang 14
-`P1868 <https://wg21.link/P1868>`_,"width: clarifying units of width and precision in std::format (Implements the unicode support.)",Mark de Wever,"`D103413 <https://reviews.llvm.org/D103413>`__ `D103425 <https://reviews.llvm.org/D103425>`__ `D103670 <https://reviews.llvm.org/D103670>`__",|Complete|,Clang 14
+`P1868 <https://wg21.link/P1868>`_,"width: clarifying units of width and precision in std::format (Implements the unicode support.)","C++20",Mark de Wever,|Complete|,Clang 14
-`P2216 <https://wg21.link/P2216>`_,"std::format improvements",Mark de Wever,,|Complete|,Clang 15
+`P2216 <https://wg21.link/P2216>`_,"std::format improvements","C++20",Mark de Wever,|Complete|,Clang 15
-`P2418 <https://wg21.link/P2418>`__,"Add support for ``std::generator``-like types to ``std::format``",Mark de Wever,`D127570 <https://reviews.llvm.org/D127570>`__,|Complete|, Clang 15
+`P2418 <https://wg21.link/P2418>`__,"Add support for ``std::generator``-like types to ``std::format``","C++20",Mark de Wever,|Complete|, Clang 15
+"`P2093R14 <https://wg21.link/P2093R14>`__","Formatted output","C++23"
+"`P2286R8 <https://wg21.link/P2286R8>`__","Formatting Ranges","C++23","Mark de Wever","|Complete|",Clang 16
+"`P2508R1 <https://wg21.link/P2508R1>`__","Exposing ``std::basic-format-string``","C++23","Mark de Wever","|Complete|", Clang 15
+"`P2585R0 <https://wg21.link/P2585R0>`__","Improving default container formatting","C++23","Mark de Wever","|In progress|"
+"`P2539R4 <https://wg21.link/P2539R4>`__","Should the output of ``std::print`` to a terminal be synchronized with the underlying stream?","C++23"
+
+`P1361 <https://wg21.link/P1361>`_,"Integration of chrono with text formatting","C++20",Mark de Wever,|In Progress|,
+`P2372 <https://wg21.link/P2372>`__,"Fixing locale handling in chrono formatters","C++20",Mark de Wever,|In Progress|,
+"`P2419R2 <https://wg21.link/P2419R2>`__","Clarify handling of encodings in localized formatting of chrono types","C++23",
 
-`P1361 <https://wg21.link/P1361>`_,"Integration of chrono with text formatting",Mark de Wever,,|In Progress|,
-`P2372 <https://wg21.link/P2372>`__,"Fixing locale handling in chrono formatters",Mark de Wever,,|In Progress|,

docs/Status/FormatPaper.csv

@@ -1,33 +1,40 @@
-Section,Description,Dependencies,Assignee,Patch,Status,First released version
+Section,Description,Dependencies,Assignee,Status,First released version
-`[format.functions] <https://wg21.link/format.functions>`_,"Format functions - Improve performance format_to_n",,Mark de Wever,`D110499 <https://llvm.org/D110499>`__,|Complete|,Clang 15
+`P1361 <https://wg21.link/P1361>`__ `P2372 <https://wg21.link/P2372>`__,"Formatting chrono"
-`[format.functions] <https://wg21.link/format.functions>`_,"Format functions - Improve performance formatted size",,Mark de Wever,`D110498 <https://llvm.org/D110498>`__,|Complete|,Clang 15
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::duration<Rep, Period>``",,Mark de Wever,|Complete|, Clang 16
-`[format.functions] <https://wg21.link/format.functions>`_,"`P2216 <https://wg21.link/P2216>`_ - Compile-time checks",,Mark de Wever,`D121530 <https://llvm.org/D121530>`__,|Complete|,Clang 15
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::sys_time<Duration>``",,Mark de Wever,|In Progress|,
-`[format.functions] <https://wg21.link/format.functions>`_,"`P2216 <https://wg21.link/P2216>`_ - Binary size",,Mark de Wever,`D110494 <https://llvm.org/D110494>`__,|Complete|,Clang 14
-
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::duration<Rep, Period>``",,Mark de Wever,,|In Progress|,
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::sys_time<Duration>``",,Mark de Wever,,|In Progress|,
 `[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::utc_time<Duration>``",A ``<chrono>`` implementation,Not assigned,,,
 `[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::tai_time<Duration>``",A ``<chrono>`` implementation,Not assigned,,,
 `[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::gps_time<Duration>``",A ``<chrono>`` implementation,Not assigned,,,
 `[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::file_time<Duration>``",,Not assigned,,,
 `[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::local_time<Duration>``",,Not assigned,,,
 `[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::local-time-format-t<Duration>``",A ``<chrono>`` implementation,Not assigned,,,
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::day``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::day``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::month``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::month``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::year``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::year``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::weekday``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::weekday``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::weekday_indexed``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::weekday_indexed``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::weekday_last``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::weekday_last``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::month_day``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::month_day``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::month_day_last``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::month_day_last``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::month_weekday``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::month_weekday``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::month_weekday_last``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::month_weekday_last``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::year_month``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::year_month``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::year_month_day``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::year_month_day``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::year_month_day_last``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::year_month_day_last``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::year_month_weekday``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::year_month_weekday``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::year_month_weekday_last``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::year_month_weekday_last``",,Mark de Wever,|Complete|, Clang 16
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::hh_mm_ss<duration<Rep, Period>>``",,Mark de Wever,,|In Progress|,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::hh_mm_ss<duration<Rep, Period>>``",,Mark de Wever,|In Progress|,
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::sys_info``",A ``<chrono>`` implementation,Not assigned,,,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::sys_info``",A ``<chrono>`` implementation,Mark de Wever,,
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::local_info``",A ``<chrono>`` implementation,Not assigned,,,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::local_info``",A ``<chrono>`` implementation,Mark de Wever,,
-`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::zoned_time<Duration, TimeZonePtr>``",A ``<chrono>`` implementation,Not assigned,,,
+`[time.syn] <https://wg21.link/time.syn>`_,"Formatter ``chrono::zoned_time<Duration, TimeZonePtr>``",A ``<chrono>`` implementation,Mark de Wever,,
+`P2286R8 <https://wg21.link/P2286R8>`__,"Formatting ranges"
+`[format.syn] <https://wg21.link/format.syn>`_,"Concept ``formattable``",,Mark de Wever,|Complete|, Clang 16
+`[format.string.std] <https://wg21.link/format.string.std>`_,"std-format-spec ``type`` debug",,Mark de Wever,|Complete|,Clang 16
+`[format.range] <https://wg21.link/format.range>`_,"Formatting for ranges: sequences",,Mark de Wever,|Complete|,Clang 16
+`[format.range.fmtmap] <https://wg21.link/format.range.fmtmap>`_,"Formatting for ranges: map",,Mark de Wever,|Complete|,Clang 16
+`[format.range.fmtset] <https://wg21.link/format.range.fmtset>`_,"Formatting for ranges: set",,Mark de Wever,|Complete|,Clang 16
+`[format.range] <https://wg21.link/format.range>`_,"Formatting for ranges: container adaptors",,Mark de Wever,|Complete|,Clang 16
+`[format.range] <https://wg21.link/format.range>`_,"Formatting for ranges: ``pair`` and ``tuple``",,Mark de Wever,|Complete|,Clang 16
+`[format.range] <https://wg21.link/format.range>`_,"Formatting for ranges: ``vector<bool>``",,Mark de Wever,|Complete|,Clang 16
+"`P2585R0 <https://wg21.link/P2585R0>`__","Improving default container formatting"
+`[format.range.fmtstr] <https://wg21.link/format.range.fmtstr>`_,"Formatting for ranges: strings",,Mark de Wever,|In Progress|,

docs/Status/Ranges.rst

@@ -1,4 +1,4 @@
-.. ranges-status:
+a. ranges-status:
 
 ================================
 libc++ Ranges Status
@@ -13,44 +13,36 @@ libc++ Ranges Status
 Overview
 ================================
 
-This document contains the status of the C++20 Ranges library in libc++. It is used to
+This document contains the status of the Ranges library in libc++. It is used to track
-track both the status of the sub-projects of the ranges library and who is assigned to
+both the status of the sub-projects of the ranges library and who is assigned to these
-these sub-projects. This is imperative to effective implementation so that work is not
+sub-projects. This is imperative to effective implementation so that work is not
 duplicated and implementors are not blocked by each other.
 
 If you are interested in contributing to the libc++ Ranges library, please send a message
 to the #libcxx channel in the LLVM discord. Please *do not* start working on any of the
-assigned items below.
+*assigned* items below.
 
 
-Sub-Projects in the One Ranges Proposal
+Major features
 =======================================
 
 .. csv-table::
-   :file: RangesPaper.csv
+   :file: RangesMajorFeatures.csv
    :header-rows: 1
    :widths: auto
 
+Views
+=======================================
+
+.. csv-table::
+   :file: RangesViews.csv
+   :header-rows: 1
+   :widths: auto
+
+Algorithms
+=======================================
+
 .. csv-table::
    :file: RangesAlgorithms.csv
    :header-rows: 1
    :widths: auto
-
-
-Misc. Items and TODOs
-====================================
-
-(Note: files with required updates will contain the TODO at the beginning of the list item
-so they can be easily found via global search.)
-
-    * TODO(XX_SPACESHIP_CONCEPTS): when spaceship support is added to various STL types, we need to update some concept tests.
-
-Paper and Issue Status
-====================================
-
-(Note: stolen from MSVC `here <https://github.com/microsoft/STL/issues/39>`_.)
-
-.. csv-table::
-   :file: RangesIssues.csv
-   :header-rows: 1
-   :widths: auto

docs/Status/RangesAlgorithms.csv

@@ -1,100 +1,12 @@
-Category,Algorithm,Assignee,CL,Complete
+Standard,Algorithm,Assignee,CL,Status
-Search,any_of,Nikolas Klauser,`D123016 <https://llvm.org/D123016>`_,✅
+C++20,all C++20 algorithms,N/A,N/A,✅
-Search,all_of,Nikolas Klauser,`D123016 <https://llvm.org/D123016>`_,✅
+C++23,`find_last <https://wg21.link/P1223R5>`_,Unassigned,No patch yet,Not started
-Search,none_of,Nikolas Klauser,`D123016 <https://llvm.org/D123016>`_,✅
+C++23,`find_last_if <https://wg21.link/P1223R5>`_,Unassigned,No patch yet,Not started
-Search,find,Nikolas Klauser,`D121248 <https://llvm.org/D121248>`_,✅
+C++23,`find_last_if_not <https://wg21.link/P1223R5>`_,Unassigned,No patch yet,Not started
-Search,find_if,Nikolas Klauser,`D121248 <https://llvm.org/D121248>`_,✅
+C++23,`starts_with <https://wg21.link/P1659R3>`_,Unassigned,No patch yet,Not started
-Search,find_if_not,Nikolas Klauser,`D121248 <https://llvm.org/D121248>`_,✅
+C++23,`ends_with <https://wg21.link/P1659R3>`_,Unassigned,No patch yet,Not started
-Search,find_first_of,Nikolas Klauser,`D126529 <https://llvm.org/D126529>`_,✅
+C++23,`shift_left <https://wg21.link/p2440r1>`_,Unassigned,No patch yet,Not started
-Search,adjacent_find,Nikolas Klauser,`D126610 <https://llvm.org/D126610>`_,✅
+C++23,`shift_right <https://wg21.link/p2440r1>`_,Unassigned,No patch yet,Not started
-Search,mismatch,Nikolas Klauser,`D117817 <https://llvm.org/D117817>`_,✅
+C++23,`iota (algorithm) <https://wg21.link/p2440r1>`_,Unassigned,No patch yet,Not started
-Search,equal,Nikolas Klauser,`D123681 <https://llvm.org/D123681>`_,✅
+C++23,`fold <https://wg21.link/p2322r5>`_,Unassigned,No patch yet,Not started
-Search,lexicographical_compare,Nikolas Klauser,`D127130 <https://llvm.org/D127130>`_,✅
+C++23,`contains <https://wg21.link/p2302r2>`_,Unassigned,No patch yet,Not started
-Search,partition_point,Konstantin Varlamov,`D130070 <https://llvm.org/D130070>`_,✅
-Search,lower_bound,Nikolas Klauser,`D121964 <https://llvm.org/D121964>`_,✅
-Search,upper_bound,Nikolas Klauser,`D121964 <https://llvm.org/D121964>`_,✅
-Search,equal_range,Hui Xie,`D129796 <https://llvm.org/D129796>`_,✅
-Search,binary_search,Nikolas Klauser,`D121964 <https://llvm.org/D121964>`_,✅
-Search,min,Nikolas Klauser,`D119589 <https://llvm.org/D119589>`_,✅
-Search,max,Nikolas Klauser,`D122002 <https://llvm.org/D122002>`_,✅
-Search,minmax,Nikolas Klauser,`D120637 <https://llvm.org/D120637>`_,✅
-Search,min_element,Nikolas Klauser,`D117025 <https://llvm.org/D117025>`_,✅
-Search,max_element,Nikolas Klauser,`D117523 <https://llvm.org/D117523>`_,✅
-Search,minmax_element,Nikolas Klauser,`D120637 <https://llvm.org/D120637>`_,✅
-Search,count,Nikolas Klauser,`D121523 <https://llvm.org/D121523>`_,✅
-Search,count_if,Nikolas Klauser,`D121523 <https://llvm.org/D121523>`_,✅
-Search,search,Nikolas Klauser,`D124079 <https://llvm.org/D124079>`_,✅
-Search,search_n,Nikolas Klauser,`D124079 <https://llvm.org/D124079>`_,✅
-Search,find_end,Nikolas Klauser,`D124079 <https://llvm.org/D124079>`_,✅
-Read-only,is_partitioned,Nikolas Klauser,`D124440 <https://llvm.org/D124440>`_,✅
-Read-only,is_sorted,Nikolas Klauser,`D125608 <https://llvm.org/D125608>`_,✅
-Read-only,is_sorted_until,Nikolas Klauser,`D125608 <https://llvm.org/D125608>`_,✅
-Read-only,includes,Hui Xie,`D130116 <https://llvm.org/D130116>`_,✅
-Read-only,is_heap,Konstantin Varlamov,`D130547 <https://llvm.org/D130547>`_,✅
-Read-only,is_heap_until,Konstantin Varlamov,`D130547 <https://llvm.org/D130547>`_,✅
-Read-only,clamp,Nikolas Klauser,`D126193 <https://llvm.org/D126193>`_,✅
-Read-only,is_permutation,Nikolas Klauser,`D127194 <https://llvm.org/D127194>`_,✅
-Read-only,for_each,Nikolas Klauser,`D124332 <https://llvm.org/D124332>`_,✅
-Read-only,for_each_n,Nikolas Klauser,`D124332 <https://llvm.org/D124332>`_,✅
-Write,copy,Nikolas Klauser,`D122982 <https://llvm.org/D122982>`_,✅
-Write,copy_if,Nikolas Klauser,`D122982 <https://llvm.org/D122982>`_,✅
-Write,copy_n,Nikolas Klauser,`D122982 <https://llvm.org/D122982>`_,✅
-Write,copy_backward,Nikolas Klauser,`D122982 <https://llvm.org/D122982>`_,✅
-Write,move,Nikolas Klauser,`D126616 <https://llvm.org/D126616>`_,✅
-Write,move_backward,Nikolas Klauser,`D126616 <https://llvm.org/D126616>`_,✅
-Write,fill,Nikolas Klauser,`D123462 <https://llvm.org/D123462>`_,✅
-Write,fill_n,Nikolas Klauser,`D123462 <https://llvm.org/D123462>`_,✅
-Write,transform,Nikolas Klauser,`D122173 <https://llvm.org/D122173>`_,✅
-Write,generate,Konstantin Varlamov,`D130552 <https://llvm.org/D130552>`_,✅
-Write,generate_n,Konstantin Varlamov,`D130552 <https://llvm.org/D130552>`_,✅
-Write,remove_copy,Nikolas Klauser,`D130599 <https://llvm.org/D130599>`_,✅
-Write,remove_copy_if,Nikolas Klauser,`D130599 <https://llvm.org/D130599>`_,✅
-Write,replace,Nikolas Klauser,`D126283 <https://llvm.org/D126283>`_,✅
-Write,replace_if,Nikolas Klauser,`D126283 <https://llvm.org/D126283>`_,✅
-Write,replace_copy,Nikolas Klauser,`D129806 <https://llvm.org/D129806>`_,✅
-Write,replace_copy_if,Nikolas Klauser,`D129806 <https://llvm.org/D129806>`_,✅
-Write,swap_ranges,Nikolas Klauser,`D116303 <https://llvm.org/D116303>`_,✅
-Write,reverse_copy,Nikolas Klauser,`D127211 <https://llvm.org/D127211>`_,✅
-Write,rotate_copy,Nikolas Klauser,`D127211 <https://llvm.org/D127211>`_,✅
-Write,sample,Konstantin Varlamov,`D130865 <https://llvm.org/D130865>`_,✅
-Write,unique_copy,Hui Xie,`D130404 <https://llvm.org/D130404>`_,✅
-Write,partition_copy,Konstantin Varlamov,`D130070 <https://llvm.org/D130070>`_,✅
-Write,partial_sort_copy,Konstantin Varlamov,`D130532 <https://llvm.org/D130532>`_,✅
-Merge,merge,Hui Xie,`D128611 <https://llvm.org/D128611>`_,✅
-Merge,set_difference,Hui Xie,`D128983 <https://llvm.org/D128983>`_,✅
-Merge,set_intersection,Hui Xie,`D129233 <https://llvm.org/D129233>`_,✅
-Merge,set_symmetric_difference,Hui Xie,`D129520 <https://llvm.org/D129520>`_,✅
-Merge,set_union,Hui Xie,`D129657 <https://llvm.org/D129657>`_,✅
-Permutation,remove,Nikolas Klauser,`D128618 <https://llvm.org/D128618>`_,✅
-Permutation,remove_if,Nikolas Klauser,`D128618 <https://llvm.org/D128618>`_,✅
-Permutation,reverse,Nikolas Klauser,`D125752 <https://llvm.org/D125752>`_,✅
-Permutation,rotate,Konstantin Varlamov and Nikolas Klauser,`D130758 <https://llvm.org/D130758>`_,✅
-Permutation,shuffle,Konstantin Varlamov,`D130321 <https://llvm.org/D130321>`_,✅
-Permutation,unique,Hui Xie,`D130404 <https://llvm.org/D130404>`_,✅
-Permutation,partition,Konstantin Varlamov,`D129624 <https://llvm.org/D129624>`_,✅
-Permutation,stable_partition,Konstantin Varlamov,`D129624 <https://llvm.org/D129624>`_,✅
-Permutation,sort,Konstantin Varlamov,`D127557 <https://llvm.org/D127557>`_,✅
-Permutation,stable_sort,Konstantin Varlamov,`D127834 <https://llvm.org/D127834>`_,✅
-Permutation,nth_element,Konstantin Varlamov,`D128149 <https://llvm.org/D128149>`_,✅
-Permutation,partial_sort,Konstantin Varlamov,`D128744 <https://llvm.org/D128744>`_,✅
-Permutation,inplace_merge,Hui Xie,`D130627 <https://llvm.org/D130627>`_,✅
-Permutation,make_heap,Konstantin Varlamov,`D128115 <https://llvm.org/D128115>`_,✅
-Permutation,push_heap,Konstantin Varlamov,`D128115 <https://llvm.org/D128115>`_,✅
-Permutation,pop_heap,Konstantin Varlamov,`D128115 <https://llvm.org/D128115>`_,✅
-Permutation,sort_heap,Konstantin Varlamov,`D128115 <https://llvm.org/D128115>`_,✅
-Permutation,next_permutation,Nikolas Klauser,`D129859 <https://llvm.org/D129859>`_,✅
-Permutation,prev_permutation,Nikolas Klauser,`D129859 <https://llvm.org/D129859>`_,✅
-Uninitialised memory,uninitialized_copy,Konstantin Varlamov,`D116023 <https://llvm.org/D116023>`_,✅
-Uninitialised memory,uninitialized_copy_n,Konstantin Varlamov,`D116023 <https://llvm.org/D116023>`_,✅
-Uninitialised memory,uninitialized_fill,Konstantin Varlamov,`D115626 <https://llvm.org/D115626>`_,✅
-Uninitialised memory,uninitialized_fill_n,Konstantin Varlamov,`D115626 <https://llvm.org/D115626>`_,✅
-Uninitialised memory,uninitialized_move,Konstantin Varlamov,`D116023 <https://llvm.org/D116023>`_,✅
-Uninitialised memory,uninitialized_move_n,Konstantin Varlamov,`D116023 <https://llvm.org/D116023>`_,✅
-Uninitialised memory,uninitialized_default_construct,Konstantin Varlamov,`D115315 <https://llvm.org/D115315>`_,✅
-Uninitialised memory,uninitialized_default_construct_n,Konstantin Varlamov,`D115315 <https://llvm.org/D115315>`_,✅
-Uninitialised memory,uninitialized_value_construct,Konstantin Varlamov,`D115626 <https://llvm.org/D115626>`_,✅
-Uninitialised memory,uninitialized_value_construct_n,Konstantin Varlamov,`D115626 <https://llvm.org/D115626>`_,✅
-Uninitialised memory,destroy,Konstantin Varlamov,`D116078 <https://llvm.org/D116078>`_,✅
-Uninitialised memory,destroy_n,Konstantin Varlamov,`D116078 <https://llvm.org/D116078>`_,✅
-Uninitialised memory,destroy_at,Konstantin Varlamov,`D116078 <https://llvm.org/D116078>`_,✅
-Uninitialised memory,construct_at,Konstantin Varlamov,`D116078 <https://llvm.org/D116078>`_,✅

docs/Status/RangesIssues.csv

@@ -1,33 +0,0 @@
-"Number","Name","Status","First released version"
-`P0896R4 <https://wg21.link/P0896R4>`__,<ranges>,|Complete|,15.0
-`P1035R7 <https://wg21.link/P1035R7>`__,Input Range Adaptors,,
-`P1207R4 <https://wg21.link/P1207R4>`__,Movability Of Single-Pass Iterators,|Complete|,15.0
-`P1243R4 <https://wg21.link/P1243R4>`__,Rangify New Algorithms,|Complete|,15.0
-`P1248R1 <https://wg21.link/P1248R1>`__,Fixing Relations,|Complete|,13.0
-`P1252R2 <https://wg21.link/P1252R2>`__,Ranges Design Cleanup,|Complete|,15.0
-`P1391R4 <https://wg21.link/P1391R4>`__,Range Constructor For string_view,|Complete|,14.0
-`P1456R1 <https://wg21.link/P1456R1>`__,Move-Only Views,|Complete|,15.0
-`P1474R1 <https://wg21.link/P1474R1>`__,Helpful Pointers For contiguous_iterator,|Complete|,15.0
-`P1522R1 <https://wg21.link/P1522R1>`__,Iterator Difference Type And Integer Overflow,|Complete|,15.0
-`P1523R1 <https://wg21.link/P1523R1>`__,Views And Size Types,|Complete|,15.0
-`P1638R1 <https://wg21.link/P1638R1>`__,basic_istream_view::iterator Should Not Be Copyable,,
-`P1716R3 <https://wg21.link/P1716R3>`__,Range Comparison Algorithms Are Over-Constrained,|Complete|,15.0
-`P1739R4 <https://wg21.link/P1739R4>`__,Avoiding Template Bloat For Ranges,|Complete|,15.0
-`P1862R1 <https://wg21.link/P1862R1>`__,Range Adaptors For Non-Copyable Iterators,,
-`P1870R1 <https://wg21.link/P1870R1>`__,forwarding-range<T> is too subtle,|Complete|,15.0
-`P1871R1 <https://wg21.link/P1871R1>`__,Concept traits should be named after concepts,|Complete|,14.0
-`P1878R1 <https://wg21.link/P1878R1>`__,Constraining Readable Types,|Complete|,15.0
-`P1970R2 <https://wg21.link/P1970R2>`__,Consistency for size() functions: Add ranges::ssize,|Complete|,15.0
-`P1983R0 <https://wg21.link/P1983R0>`__,"Wording for GB301, US296, US292, US291, and US283",|Complete|,15.0
-`P1994R1 <https://wg21.link/P1994R1>`__,elements_view Needs Its Own sentinel,,
-`P2091R0 <https://wg21.link/P2091R0>`__,Fixing Issues With Range Access CPOs,|Complete|,15.0
-`P2106R0 <https://wg21.link/P2106R0>`__,Alternative wording for GB315 and GB316,|Complete|,15.0
-
-`P2325R3 <https://wg21.link/P2325R3>`__,Views should not be required to be default constructible ,,
-`P2328R1 <https://wg21.link/P2328R1>`__,join_view should join all views of ranges,|Complete|,14.0
-`P2210R2 <https://wg21.link/P2210R2>`__,Superior String Splitting,,
-`P2281R1 <https://wg21.link/P2281R1>`__,Clarifying range adaptor objects,|Complete|,14.0
-`P2367R0 <https://wg21.link/P2367R0>`__,Remove misuses of list-initialization from Clause 24,,
-
-`P2415 <https://wg21.link/P2415>`__,"What is a ``view``",|Complete|,14.0
-`P2432 <https://wg21.link/P2432>`__,"Fix ``istream_view``",,

docs/Status/RangesMajorFeatures.csv

@@ -0,0 +1,4 @@
+Standard,Name,Assignee,CL,Status
+C++23,`ranges::to <https://wg21.link/P1206R7>`_,Unassigned,No patch yet,Not started
+C++23,`Pipe support for user-defined range adaptors <https://wg21.link/P2387R3>`_,Unassigned,No patch yet,Not started
+C++23,`Formatting Ranges <https://wg21.link/P2286R8>`_,Mark de Wever,Various,Complete

docs/Status/RangesPaper.csv

@@ -1,161 +0,0 @@
-Section,Description,Dependencies,Assignee,Complete
-`[tuple.helper] <https://wg21.link/tuple.helper>`_,`Update <tuple> includes. <https://llvm.org/D118686>`_,None,Konstantin Varlamov,✅
-`[range.cmp] <https://wg21.link/range.cmp>`_,"| `ranges::equal_to <https://llvm.org/D100429>`_
-| `ranges::not_equal_to <https://llvm.org/D100429>`_
-| `ranges::less <https://llvm.org/D100429>`_
-| `ranges::greater <https://llvm.org/D100429>`_
-| `ranges::less_equal <https://llvm.org/D100429>`_
-| `ranges::greater_equal <https://llvm.org/D100429>`_",None,Zoe Carver,✅
-`[readable.traits] <https://wg21.link/readable.traits>`_,"| `indirectly_readable_traits <https://llvm.org/D99461>`_
-| `iter_value_t <https://llvm.org/D99863>`_",None,Christopher Di Bella,✅
-`[incrementable.traits] <https://wg21.link/incrementable.traits>`_,"| `incrementable_traits <https://llvm.org/D99141>`_
-| `iter_difference_t <https://llvm.org/D99863>`_",,Christopher Di Bella,✅
-`[iterator.traits] <https://wg21.link/iterator.traits>`_,`Updates to iterator_traits <https://llvm.org/D99855>`_,"| indirectly_readable_traits
-| incrementable_traits",Christopher Di Bella,✅
-`[special.mem.concepts] <https://wg21.link/special.mem.concepts>`_,"| `nothrow-input-iterator <https://llvm.org/D114761>`_
-| `nothrow-sentinel-for <https://llvm.org/D114761>`_
-| `nothrow-input-range <https://llvm.org/D114761>`_
-| `nothrow-forward-iterator <https://llvm.org/D114761>`_
-| `nothrow-forward-range <https://llvm.org/D114761>`_","| [iterator.concepts]
-| [range.refinements]",Konstantin Varlamov,✅
-`[specialized.algorithms] <https://wg21.link/specialized.algorithms>`_,"| `ranges::uninitialized_default_construct <https://llvm.org/D115315>`_
-| `ranges::uninitialized_default_construct_n <https://llvm.org/D115315>`_
-| `ranges::uninitialized_value_construct <https://llvm.org/D115626>`_
-| `ranges::uninitialized_value_construct_n <https://llvm.org/D115626>`_
-| `ranges::uninitialized_copy <https://llvm.org/D116023>`_
-| `ranges::uninitialized_copy_n <https://llvm.org/D116023>`_
-| `ranges::uninitialized_move <https://llvm.org/D116023>`_
-| `ranges::uninitialized_move_n <https://llvm.org/D116023>`_
-| `ranges::uninitialized_fill <https://llvm.org/D115626>`_
-| `ranges::uninitialized_fill_n <https://llvm.org/D115626>`_
-| `ranges::construct_at <https://llvm.org/D116078>`_
-| `ranges::destroy <https://llvm.org/D116078>`_
-| `ranges::destroy_at <https://llvm.org/D116078>`_
-| `ranges::destroy_n <https://llvm.org/D116078>`_",[special.mem.concepts],Konstantin Varlamov,✅
-`[strings] <https://wg21.link/strings>`_,`Adds begin/end and updates const_iterator. <https://llvm.org/D118687>`_,[iterator.concepts],Konstantin Varlamov,✅
-`[views.span] <https://wg21.link/views.span>`_,`Same as [strings] <https://llvm.org/D118687>`_,[iterator.concepts],Konstantin Varlamov,✅
-`[iterator.cust.move] <https://wg21.link/iterator.cust.move>`_,`ranges::iter_move <https://llvm.org/D99873>`_,,Zoe Carver,✅
-`[iterator.cust.swap] <https://wg21.link/iterator.cust.swap>`_,`ranges::iter_swap <https://llvm.org/D102809>`_,iter_value_t,Zoe Carver,✅
-`[iterator.concepts] <https://wg21.link/iterator.concepts>`_,"| `indirectly_readable <https://llvm.org/D100073>`_
-| `indirectly_writable <https://llvm.org/D100073>`_
-| `weakly_incrementable <https://llvm.org/D100080>`_
-| `incrementable <https://llvm.org/D100080>`_
-| `input_or_output_iterator <https://llvm.org/D100160>`_
-| `sentinel_for <https://llvm.org/D100160>`_
-| `sized_sentinel_for <https://llvm.org/D101371>`_
-| `input_iterator <https://llvm.org/D100271>`_
-| `output_iterator <https://llvm.org/D106704>`_
-| `forward_iterator <https://llvm.org/D100275>`_
-| `bidirectional_iterator <https://llvm.org/D100278>`_
-| `random_access_iterator <https://llvm.org/D101316>`_
-| `contiguous_iterator <https://llvm.org/D101396>`_",,Various,✅
-`[indirectcallable.indirectinvocable] <https://wg21.link/indirectcallable.indirectinvocable>`_,"
-| `indirectly_unary_invocable <https://llvm.org/D101277>`_
-| `indirectly_regular_unary_invocable <https://llvm.org/D101277>`_
-| `indirectly_unary_predicate <https://llvm.org/D101277>`_
-| `indirectly_binary_predicate <https://llvm.org/D101277>`_
-| `indirectly_equivalence_relation <https://llvm.org/D101277>`_
-| `indirectly_strict_weak_order <https://llvm.org/D101277>`_",[readable.traits],Louis Dionne,✅
-`[projected] <https://wg21.link/projected>`_,`ranges::projected <https://llvm.org/D101277>`_,[iterator.concepts],Louis Dionne,✅
-`[alg.req] <https://wg21.link/alg.req>`_: pt. 1,"| `indirectly_movable <https://llvm.org/D102639>`_
-| `indirectly_movable_storable <https://llvm.org/D102639>`_
-| `indirectly_copyable <https://llvm.org/D118432>`_
-| `indirectly_copyable_storable <https://llvm.org/D118432>`_",[iterator.concepts],Zoe Carver and Konstantin Varlamov,✅
-`[alg.req] <https://wg21.link/alg.req>`_: pt. 2,`indirectly_swappable <https://llvm.org/D105304>`_,"| [iterator.concepts]
-| [iterator.cust.swap]",Zoe Carver,✅
-`[alg.req] <https://wg21.link/alg.req>`_: pt. 3,`indirectly_comparable <https://llvm.org/D116268>`_,[projected],Nikolas Klauser,✅
-`[alg.req] <https://wg21.link/alg.req>`_: pt. 4,"| `permutable <https://llvm.org/D119222>`_
-| `mergeable <https://llvm.org/D119489>`_
-| `sortable <https://llvm.org/D119619>`_",[iterator.concepts],Konstantin Varlamov,✅
-`[std.iterator.tags] <https://wg21.link/std.iterator.tags>`_,"| `contiguous_iterator_tag <https://llvm.org/rG45d048c20440989df2b4e1be1f9343225e7741ab>`_
-| `iterator_concept specialization for pointers <https://llvm.org/rG45d048c20440989df2b4e1be1f9343225e7741ab>`_
-",[iterator.traits],Eric Fiselier,✅
-`[range.iter.ops] <https://wg21.link/range.iter.ops>`_,"| `ranges::advance <https://llvm.org/D101922>`_
-| `ranges::distance <https://llvm.org/D102789>`_
-| `ranges::next <https://llvm.org/D102563>`_
-| `ranges::prev <https://llvm.org/D102564>`_",[iterator.concepts],Christopher Di Bella and Arthur O'Dwyer,✅
-`[predef.iterators] <https://wg21.link/predef.iterators>`_,"
-| `Updates to reverse_iterator <https://llvm.org/D120180>`_
-| `Updates to back_insert_iterator <https://llvm.org/D103273>`_
-| `Updates to front_insert_iterator <https://llvm.org/D103273>`_
-| `Updates to move_iterator <https://llvm.org/D117656>`_","| [iterator.concepts]
-| [iterator.cust.swap]
-| [iterator.cust.move]",Various,✅
-`[move.sentinel] <https://wg21.link/move.sentinel>`_,`move_sentinel <https://llvm.org/D117656>`_,[predef.iterators],Arthur O'Dwyer,✅
-`[common.iterator] <https://wg21.link/common.iterator>`_,`common_iterator <https://llvm.org/D103335>`_,"| [iterator.concepts]
-| [iterator.cust.swap]
-| [iterator.cust.move]",Zoe Carver,✅
-`[default.sentinel] <https://wg21.link/default.sentinel>`_,`std::default_sentinel_t <https://llvm.org/D103487>`_,No dependencies,Zoe Carver,✅
-`[counted.iterator] <https://wg21.link/counted.iterator>`_,`counted_iterator <https://llvm.org/D106205>`_,"| [iterator.concepts]
-| [iterator.cust.swap]
-| [iterator.cust.move]
-| [default.sentinels]",Zoe Carver,✅
-`[stream.iterators] <https://wg21.link/stream.iterators>`_,"
-| `Updates to istream_iterator <https://llvm.org/D119620>`_
-| `Updates to ostream_iterator <https://llvm.org/D103273>`_
-| `Updates to istreambuf_iterator <https://llvm.org/D119620>`_
-| `Updates to ostreambuf_iterator <https://llvm.org/D103273>`_
-",[default.sentinels],Various,✅
-`[range.access] <https://wg21.link/range.access>`_,"| `ranges::begin <https://llvm.org/D100255>`_
-| `ranges::end <https://llvm.org/D100255>`_
-| `range::cbegin <https://llvm.org/D100255>`_
-| `ranges::cend <https://llvm.org/D100255>`_
-| `ranges::rbegin <https://llvm.org/D119057>`_
-| `ranges::rend <https://llvm.org/D119057>`_
-| `ranges::crbegin <https://llvm.org/D119057>`_
-| `ranges::crend <https://llvm.org/D119057>`_
-| `ranges::size <https://llvm.org/D101079>`_
-| `ranges::ssize <https://llvm.org/D101189>`_
-| `ranges::empty <https://llvm.org/D101193>`_
-| `ranges::data <https://llvm.org/D101476>`_
-| `ranges::cdata <https://llvm.org/D117044>`_",[iterator.concepts],Various,✅
-`[range.range] <https://wg21.link/range.range>`_,"| `ranges::range <https://llvm.org/D100269>`_
-| `ranges::borrowed_range <https://llvm.org/D102426>`_
-| `ranges::enable_borrowed_range <https://llvm.org/D90999>`_
-| `ranges::iterator_t <https://llvm.org/D100255>`_
-| `ranges::sentinel_t <https://llvm.org/D100269>`_
-| `ranges::range_difference_t <https://llvm.org/D100269>`_
-| `ranges::range_size_t <https://llvm.org/D106708>`_
-| `ranges::range_value_t <https://llvm.org/D100269>`_
-| `ranges::range_reference_t <https://llvm.org/D100269>`_
-| `ranges::range_rvalue_reference_t <https://llvm.org/D100269>`_",[range.access],Christopher Di Bella,✅
-`[range.sized] <https://wg21.link/range.sized>`_,"| `ranges::sized_range <https://llvm.org/D102434>`_
-| `ranges::disable_sized_range <https://llvm.org/D102434>`_","| [range.primitives]
-| [range.range]",Christopher Di Bella,✅
-`[range.view] <https://wg21.link/range.view>`_,"| `ranges::enable_view <https://llvm.org/D101547>`_
-| `ranges::view_base <https://llvm.org/D101547>`_
-| `ranges::view <https://llvm.org/D101547>`_",[range.range],Louis Dionne,✅
-`[range.refinements] <https://wg21.link/range.refinements>`_,"| `ranges::output_range <https://llvm.org/D106704>`_
-| `ranges::input_range <https://llvm.org/D100271>`_
-| `ranges::forward_range <https://llvm.org/D100275>`_
-| `ranges::bidirectional_range <https://llvm.org/D100278>`_
-| `ranges::random_access_range <https://llvm.org/D101316>`_
-| `ranges::contiguous_range <https://llvm.org/D104262>`_
-| `ranges::common_range <https://llvm.org/D100269>`_",[range.range],Christopher Di Bella,✅
-`[range.refinements]`_,`ranges::viewable_range <https://llvm.org/D105816>`_,[range.range],Louis Dionne,✅
-`[range.utility.helpers] <https://wg21.link/range.utility.helpers>`_,"| `simple-view <https://llvm.org/D103493>`_
-| `has-arrow <https://llvm.org/D103493>`_
-| `not-same-as <https://llvm.org/D103493>`_","| [range.range]
-| [iterator.concept.input]",Zoe Carver,✅
-`[view.interface] <https://wg21.link/view.interface>`_,"`ranges::view_interface <https://llvm.org/D101737>`_","| [ranges.range]
-| [range.view]
-| [range.iterator.op.prev]
-| [range.refinements]",Zoe Carver,✅
-`[range.subrange] <https://wg21.link/range.subrange>`_,`ranges::subrange <https://llvm.org/D102006>`_,[view.interface],Zoe Carver,✅
-`[range.dangling] <https://wg21.link/range.dangling>`_,"| `ranges::dangling <https://llvm.org/D105205>`_
-| `ranges::borrowed_iterator_t <https://llvm.org/D105205>`_
-| `ranges::borrowed_subrange_t <https://llvm.org/D105205>`_","| [range.range]
-| [range.subrange]",Christopher Di Bella,✅
-`[range.empty] <https://wg21.link/range.empty>`_,`empty_view <https://llvm.org/D103208>`_,[view.interface],Zoe Carver,✅
-`[range.single] <https://wg21.link/range.single>`_,`single_view <https://llvm.org/D106840>`_,[view.interface],Zoe Carver,✅
-`[range.iota] <https://wg21.link/range.iota>`_,`iota_view <https://llvm.org/D107396>`_,[range.all],Zoe Carver,✅
-`[range.all] <https://wg21.link/range.all>`_,`view::all <https://llvm.org/D102028>`_,"[range.subrange], [range.view.ref]",Zoe Carver,✅
-`[range.ref.view] <https://wg21.link/range.ref.view>`_,`ref_view <https://llvm.org/D102020>`_,[view.interface],Zoe Carver,✅
-`[range.filter] <https://wg21.link/range.filter>`_,`filter_view <https://llvm.org/D109086>`_,[range.all],Louis Dionne,✅
-`[range.transform] <https://wg21.link/range.transform>`_,`transform_view <https://llvm.org/D103056>`_,[range.all],Zoe Carver,✅
-`[range.take] <https://wg21.link/range.take>`_,`take_view <https://llvm.org/D106507>`_,[range.all],Zoe Carver,✅
-`[range.join] <https://wg21.link/range.join>`_,`join_view <https://llvm.org/D107671>`_,[range.all],Zoe Carver,✅
-`[range.split] <https://wg21.link/range.split>`_,`split_view (renamed to lazy_split_view by P2210) <https://llvm.org/D107500>`_,[range.all],Zoe Carver and Konstantin Varlamov,✅
-`[range.counted] <https://wg21.link/range.counted>`_,`view::counted <https://llvm.org/D106923>`_,[range.subrange],Zoe Carver,✅
-`[range.common] <https://wg21.link/range.common>`_,`common_view <https://llvm.org/D105753>`_,[range.all],Zoe Carver,✅
-`[range.reverse] <https://wg21.link/range.reverse>`_,`reverse_view <https://llvm.org/D107096>`_,[range.all],Zoe Carver,✅

docs/Status/RangesViews.csv

@@ -0,0 +1,37 @@
+Standard,View,Assignee,CL,Status
+C++20,`empty <https://wg21.link/P0896R4>`_,Zoe Carver,`D103208 <https://llvm.org/D103208>`_,✅
+C++20,`single <https://wg21.link/P0896R4>`_,Zoe Carver,`D106840 <https://llvm.org/D106840>`_,✅
+C++20,`iota (view) <https://wg21.link/P0896R4>`_,Zoe Carver,`D107396 <https://llvm.org/D107396>`_,✅
+C++20,`all <https://wg21.link/P0896R4>`_,Zoe Carver,`D102028 <https://llvm.org/D102028>`_,✅
+C++20,`ref_view <https://wg21.link/P0896R4>`_,Zoe Carver,`D102020 <https://llvm.org/D102020>`_,✅
+C++20,`owning_view <https://wg21.link/P0896R4>`_,Arthur O'Dwyer,`D116894 <https://llvm.org/D116894>`_,✅
+C++20,`filter <https://wg21.link/P0896R4>`_,Louis Dionne,`D109086 <https://llvm.org/D109086>`_,✅
+C++20,`transform <https://wg21.link/P0896R4>`_,Zoe Carver,`D103056 <https://llvm.org/D103056>`_,✅
+C++20,`take <https://wg21.link/P0896R4>`_,Zoe Carver,`D106507 <https://llvm.org/D106507>`_,✅
+C++20,`take_while <https://wg21.link/P1035R7>`_,Hui Xie,`D134952 <https://llvm.org/D134952>`_,✅
+C++20,`drop <https://wg21.link/P1035R7>`_,Zoe Carver,`D102037 <https://llvm.org/D102037>`_,✅
+C++20,`drop_while <https://wg21.link/P1035R7>`_,Hui Xie,`D135460 <https://llvm.org/D135460>`_,✅
+C++20,`join <https://wg21.link/P0896R4>`_,Zoe Carver,`D107671 <https://llvm.org/D107671>`_,✅
+C++20,`split <https://wg21.link/P2210R2>`_,Unassigned,No patch yet,Not started
+C++20,`lazy_split <https://wg21.link/P0896R4>`_,Zoe Carver and Konstantin Varlamov,`D107500 <https://llvm.org/D107500>`_,✅
+C++20,`counted <https://wg21.link/P0896R4>`_,Zoe Carver,`D106923 <https://llvm.org/D106923>`_,✅
+C++20,`common <https://wg21.link/P0896R4>`_,Zoe Carver,`D105753 <https://llvm.org/D105753>`_,✅
+C++20,`reverse <https://wg21.link/P0896R4>`_,Zoe Carver,`D107096 <https://llvm.org/D107096>`_,✅
+C++20,`elements / keys / values <https://wg21.link/P1035R7>`_,Hui Xie,`D136268 <https://llvm.org/D136268>`_,✅
+C++20,`istream <https://wg21.link/P1035R7>`_,Hui Xie,`D133317 <https://llvm.org/D133317>`_,✅
+,,,,
+,,,,
+,,,,
+C++23,`repeat <https://wg21.link/P2474R2>`_,Unassigned,No patch yet,Not started
+C++23,`cartesian_product <https://wg21.link/P2374R4>`_,Unassigned,No patch yet,Not started
+C++23,`zip <https://wg21.link/P2321R2>`_,Hui Xie,`D122806 <https://llvm.org/D122806>`_,✅
+C++23,`zip_transform <https://wg21.link/P2321R2>`_,Hui Xie,No patch yet,Not started
+C++23,`adjacent <https://wg21.link/P2321R2>`_,Hui Xie,No patch yet,Not started
+C++23,`adjacent_transform <https://wg21.link/P2321R2>`_,Hui Xie,No patch yet,Not started
+C++23,`join_with <https://wg21.link/P2441R2>`_,Unassigned,No patch yet,Not started
+C++23,`slide <https://wg21.link/P2442R1>`_,Unassigned,No patch yet,Not started
+C++23,`chunk <https://wg21.link/P2442R1>`_,Unassigned,No patch yet,Not started
+C++23,`chunk_by <https://wg21.link/P2443R1>`_,Unassigned,No patch yet,Not started
+C++23,`as_const <https://wg21.link/P2278R4>`_,Unassigned,No patch yet,Not started
+C++23,`as_rvalue <https://wg21.link/P2446R2>`_,Nikolas Klauser,`D137637 <https://llvm.org/D137637>`_,Complete
+C++23,`stride <https://wg21.link/P1899R3>`_,Unassigned,No patch yet,Not started

docs/Status/SpaceshipPapers.csv

@@ -1,7 +1,6 @@
 "Number","Name","Status","First released version"
 `P1614R2 <https://wg21.link/P1614>`_,The Mothership has Landed,|In Progress|,
 `P2404R0 <https://wg21.link/P2404>`_,"Relaxing equality_comparable_with's, totally_ordered_with's, and three_way_comparable_with's common reference requirements to support move-only types",,
-`P2405R0 <https://wg21.link/P2405>`_,nullopt_t and nullptr_t should both have operator<=> and operator==,,
 `LWG3330 <https://wg21.link/LWG3330>`_,Include <compare> from most library headers,"|Complete|","13.0"
 `LWG3347 <https://wg21.link/LWG3347>`_,"std::pair<T, U> now requires T and U to be less-than-comparable",|Nothing To Do|,
 `LWG3350 <https://wg21.link/LWG3350>`_,Simplify return type of lexicographical_compare_three_way,|Nothing To Do|,

docs/Status/SpaceshipProjects.csv

@@ -11,72 +11,71 @@ Section,Description,Dependencies,Assignee,Complete
 | `strong_order_fallback <https://reviews.llvm.org/D111514>`_
 | `weak_order_fallback <https://reviews.llvm.org/D111514>`_
 | `partial_order_fallback <https://reviews.llvm.org/D111514>`_",None,Arthur O'Dwyer,|Complete| [#note-strongorder]_
-| `[alg.three.way] <https://wg21.link/alg.three.way>`_,| `lexicographical_compare_three_way <https://reviews.llvm.org/D80902>`_,[comparisons.three.way],Christopher Di Bella,|In Progress|
+| `[alg.three.way] <https://wg21.link/alg.three.way>`_,| `lexicographical_compare_three_way <https://reviews.llvm.org/D131395>`_,[comparisons.three.way],Adrian Vogelsgesang,|In Progress|
+| `[type.info] <https://wg21.link/type.info>`_,| `typeinfo <https://reviews.llvm.org/D130853>`_,None,Adrian Vogelsgesang,|Complete|
 | `[coroutine.handle.compare] <https://wg21.link/coroutine.handle.compare>`_,| `coroutine_handle <https://reviews.llvm.org/D109433>`_,[comparisons.three.way],Chuanqi Xu,|Complete|
 | `[pairs.spec] <https://wg21.link/pairs.spec>`_,| `pair <https://reviews.llvm.org/D107721>`_,[expos.only.func],Kent Ross,|Complete|
-| `[syserr.errcat.nonvirtuals] <https://wg21.link/syserr.errcat.nonvirtuals>`_,| error_category,[comparisons.three.way],Unassigned,|Not Started|
+| `[syserr.errcat.nonvirtuals] <https://wg21.link/syserr.errcat.nonvirtuals>`_,| `error_category <https://reviews.llvm.org/D131363>`_,[comparisons.three.way],Adrian Vogelsgesang,|Complete|
-| `[syserr.compare] <https://wg21.link/syserr.compare>`_,"| error_code
+| `[syserr.compare] <https://wg21.link/syserr.compare>`_,"| `error_code <https://reviews.llvm.org/D131371>`_
-| error_condition",None,Unassigned,|Not Started|
+| `error_condition <https://reviews.llvm.org/D131371>`_",None,Adrian Vogelsgesang,|Complete|
 | `[tuple.rel] <https://wg21.link/tuple.rel>`_,| `tuple <https://reviews.llvm.org/D108250>`_,[expos.only.func],Kent Ross,|Complete|
 "| `[optional.relops] <https://wg21.link/optional.relops>`_
 | `[optional.nullops] <https://wg21.link/optional.nullops>`_
 | `[optional.comp.with.t] <https://wg21.link/optional.comp.with.t>`_","| optional
 | nullopt",None,Kent Ross,|In Progress|
 "| `[variant.relops] <https://wg21.link/variant.relops>`_
-| `[variant.monostate.relops] <https://wg21.link/variant.monostate.relops>`_","| monostate
+| `[variant.monostate.relops] <https://wg21.link/variant.monostate.relops>`_","| `monostate <https://reviews.llvm.org/D131372>`_
-| variant",None,Kent Ross,|In Progress|
+| `variant <https://reviews.llvm.org/D131372>`_",None,Kent Ross,|Complete|
-| `[unique.ptr.special] <https://wg21.link/unique.ptr.special>`_,| unique_ptr,[comparisons.three.way],Unassigned,|Not Started|
+| `[unique.ptr.special] <https://wg21.link/unique.ptr.special>`_,| `unique_ptr <https://reviews.llvm.org/D130838>`_,[comparisons.three.way],Adrian Vogelsgesang,|Complete|
-| `[util.smartptr.shared.cmp] <https://wg21.link/util.smartptr.shared.cmp>`_,| shared_ptr,[comparisons.three.way],Unassigned,|Not Started|
+| `[util.smartptr.shared.cmp] <https://wg21.link/util.smartptr.shared.cmp>`_,| `shared_ptr <https://reviews.llvm.org/D130852>`_,[comparisons.three.way],Adrian Vogelsgesang,|Complete|
-| `[type.index.members] <https://wg21.link/type.index.members>`_,| type_index,None,Unassigned,|Not Started|
+| `[type.index.members] <https://wg21.link/type.index.members>`_,| `type_index <https://reviews.llvm.org/D131357>`_,None,Adrian Vogelsgesang,|Complete|
-| `[charconv.syn] <https://wg21.link/charconv.syn>`_,| to_chars_result,None,Mark de Wever,|Complete|
+| `[charconv.syn] <https://wg21.link/charconv.syn>`_,| `to_chars_result <https://reviews.llvm.org/D112366>`_,None,Mark de Wever,|Complete|
-| `[charconv.syn] <https://wg21.link/charconv.syn>`_,| from_chars_result,None,Mark de Wever,|Complete|
+| `[charconv.syn] <https://wg21.link/charconv.syn>`_,| `from_chars_result <https://reviews.llvm.org/D112366>`_,None,Mark de Wever,|Complete|
 | `[stacktrace.entry.cmp] <https://wg21.link/stacktrace.entry.cmp>`_,| stacktrace_entry,None,Unassigned,|Not Started|
 | `[stacktrace.basic.cmp] <https://wg21.link/stacktrace.basic.cmp>`_,| basic_stacktrace,[alg.three.way],Unassigned,|Not Started|
-| `[string.cmp] <https://wg21.link/string.cmp>`_,| `basic_string <https://reviews.llvm.org/D80895>`_,None,Christopher Di Bella,|In Progress|
+| `[string.cmp] <https://wg21.link/string.cmp>`_,| `basic_string <https://reviews.llvm.org/D131421>`_,None,Mark de Wever,|Complete|
-| `[string.view.comparison] <https://wg21.link/string.view.comparison>`_,| `basic_string_view <https://reviews.llvm.org/D80891>`_,None,Christopher Di Bella,|In Progress|
+| `[string.view.comparison] <https://wg21.link/string.view.comparison>`_,| `basic_string_view <https://reviews.llvm.org/D130295>`_,None,Mark de Wever,|Complete|
-| `[array.syn] <https://wg21.link/array.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),| array,[expos.only.func],Unassigned,|Not Started|
+| `[array.syn] <https://wg21.link/array.syn>`_ (`general <https://wg21.link/container.opt.reqmts>`_),| `array <https://reviews.llvm.org/D132265>`_,[expos.only.func],Adrian Vogelsgesang,|In Progress|
-| `[deque.syn] <https://wg21.link/deque.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),| deque,[expos.only.func],Unassigned,|Not Started|
+| `[deque.syn] <https://wg21.link/deque.syn>`_ (`general <https://wg21.link/container.opt.reqmts>`_),| deque,[expos.only.func],Unassigned,|Not Started|
-| `[forward.list.syn] <https://wg21.link/forward.list.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),| forward_list,[expos.only.func],Unassigned,|Not Started|
+| `[forward.list.syn] <https://wg21.link/forward.list.syn>`_ (`general <https://wg21.link/container.opt.reqmts>`_),| forward_list,[expos.only.func],Unassigned,|Not Started|
-| `[list.syn] <https://wg21.link/list.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),| list,[expos.only.func],Unassigned,|Not Started|
+| `[list.syn] <https://wg21.link/list.syn>`_ (`general <https://wg21.link/container.opt.reqmts>`_),| list,[expos.only.func],Unassigned,|Not Started|
-| `[vector.syn] <https://wg21.link/vector.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),| vector,[expos.only.func],Unassigned,|Not Started|
+| `[vector.syn] <https://wg21.link/vector.syn>`_ (`general <https://wg21.link/container.opt.reqmts>`_),| `vector <https://reviews.llvm.org/D132268>`_,[expos.only.func],Adrian Vogelsgesang,|In Progress|
-| `[associative.map.syn] <https://wg21.link/associative.map.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),"| map
+| `[associative.map.syn] <https://wg21.link/associative.map.syn>`_ (`general <https://wg21.link/container.opt.reqmts>`_),"| map
 | multimap",[expos.only.func],Unassigned,|Not Started|
-| `[associative.set.syn] <https://wg21.link/associative.set.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),"| multiset
+| `[associative.set.syn] <https://wg21.link/associative.set.syn>`_ (`general <https://wg21.link/container.opt.reqmts>`_),"| multiset
 | set",[expos.only.func],Unassigned,|Not Started|
 | `[queue.ops] <https://wg21.link/queue.ops>`_,| queue,None,Unassigned,|Not Started|
 | `[stack.ops] <https://wg21.link/stack.ops>`_,| stack,None,Unassigned,|Not Started|
-| `[reverse.iter.cmp] <https://wg21.link/reverse.iter.cmp>`_,| reverse_iterator,None,Mikhail Maltsev,|Complete|
+| `[reverse.iter.cmp] <https://wg21.link/reverse.iter.cmp>`_,| `reverse_iterator <https://reviews.llvm.org/D113695>`_,None,Mikhail Maltsev,|Complete|
 | `[move.iter.op.comp] <https://wg21.link/move.iter.op.comp>`_,| move_iterator,None,Unassigned,|Not Started|
 | `[counted.iter.cmp] <https://wg21.link/counted.iter.cmp>`_,| counted_iterator,None,Unassigned,|Not Started|
-| `[range.iota.iterator] <https://wg21.link/range.iota.iterator>`_,| ranges::iota_view::iterator,[concepts.cmp],Unassigned,|Not Started|
+| `[range.iota.iterator] <https://wg21.link/range.iota.iterator>`_,| `ranges::iota_view::iterator <https://reviews.llvm.org/D110774>`_,[concepts.cmp],Arthur O'Dwyer,|Complete|
-| `[range.transform.iterator] <https://wg21.link/range.transform.iterator>`_,| ranges::transform_view::iterator,[concepts.cmp],Unassigned,|Not Started|
+| `[range.transform.iterator] <https://wg21.link/range.transform.iterator>`_,| `ranges::transform_view::iterator <https://reviews.llvm.org/D110774>`_,[concepts.cmp],Arthur O'Dwyer,|Complete|
-| `[range.elements.iterator] <https://wg21.link/range.elements.iterator>`_,| ranges::elements_view::iterator,[concepts.cmp],Unassigned,|Not Started|
+| `[range.elements.iterator] <https://wg21.link/range.elements.iterator>`_,| ranges::elements_view::iterator,[concepts.cmp],Hui Xie,|Complete|
-"| `[time.duration.comparisons] <https://wg21.link/time.duration.comparisons>`_
+| `[time.duration.comparisons] <https://wg21.link/time.duration.comparisons>`_, "chrono::duration", None, Mark de Wever, |Not Started|
-| `[time.point.comparisons] <https://wg21.link/time.point.comparisons>`_
+| `[time.point.comparisons] <https://wg21.link/time.point.comparisons>`_, "chrono::time_point", None, Mark de Wever, |Not Started|
-| `[time.cal.day.nonmembers] <https://wg21.link/time.cal.day.nonmembers>`_
+"| `[time.cal.day.nonmembers] <https://wg21.link/time.cal.day.nonmembers>`_
 | `[time.cal.month.nonmembers] <https://wg21.link/time.cal.month.nonmembers>`_
 | `[time.cal.year.nonmembers] <https://wg21.link/time.cal.year.nonmembers>`_
 | `[time.cal.md.nonmembers] <https://wg21.link/time.cal.md.nonmembers>`_
 | `[time.cal.mdlast] <https://wg21.link/time.cal.mdlast>`_
 | `[time.cal.ym.nonmembers] <https://wg21.link/time.cal.ym.nonmembers>`_
 | `[time.cal.ymd.nonmembers] <https://wg21.link/time.cal.ymd.nonmembers>`_
-| `[time.cal.ymdlast.nonmembers] <https://wg21.link/time.cal.ymdlast.nonmembers>`_
+| `[time.cal.ymdlast.nonmembers] <https://wg21.link/time.cal.ymdlast.nonmembers>`_","| `chrono::day <https://reviews.llvm.org/D129887>`_
-| `[time.zone.nonmembers] <https://wg21.link/time.zone.nonmembers>`_
+| `chrono::month <https://reviews.llvm.org/D129887>`_
+| `chrono::year <https://reviews.llvm.org/D129887>`_
+| `chrono::month_day <https://reviews.llvm.org/D129887>`_
+| `chrono::month_day_last <https://reviews.llvm.org/D129887>`_
+| `chrono::year_month <https://reviews.llvm.org/D129887>`_
+| `chrono::year_month_day <https://reviews.llvm.org/D129887>`_
+| `chrono::year_month_day_last <https://reviews.llvm.org/D129887>`_",None,Mark de Wever,|Complete|
+"| `[time.zone.nonmembers] <https://wg21.link/time.zone.nonmembers>`_
 | `[time.zone.leap.nonmembers] <https://wg21.link/time.zone.leap.nonmembers>`_
-| `[time.zone.link.nonmembers] <https://wg21.link/time.zone.link.nonmembers>`_","| chrono::duration
+| `[time.zone.link.nonmembers] <https://wg21.link/time.zone.link.nonmembers>`_","| chrono::time_zone
-| chrono::time_point
-| chrono::day
-| chrono::month
-| chrono::year
-| chrono::month_day
-| chrono::month_day_last
-| chrono::year_month
-| chrono::year_month_day
-| chrono::year_month_day_last
-| chrono::time_zone
 | chrono::leap_second
-| chrono::time_zone_link",None,Unassigned,|Not Started|
+| chrono::time_zone_link",A ``<chrono>`` implementation,Unassigned,|Not Started|
-| `[fs.path.nonmember] <https://wg21.link/fs.path.nonmember>`_,| filesystem::path,None,Unassigned,|Not Started|
+| `[fs.filesystem.syn] <https://wg21.link/fs.filesystem.syn>`_,| `filesystem::space_info <https://reviews.llvm.org/D130861>`_,None,Adrian Vogelsgesang,|Complete|
-| `[fs.dir.entry.obs] <https://wg21.link/fs.dir.entry.obs>`_,| filesystem::directory_entry,None,Unassigned,|Not Started|
+| `[fs.path.nonmember] <https://wg21.link/fs.path.nonmember>`_,| `filesystem::path <https://reviews.llvm.org/D130859>`_,None,Adrian Vogelsgesang,|Complete|
-| `[re.submatch.op] <https://wg21.link/re.submatch.op>`_,| sub_match,None,Unassigned,|Not Started|
+| `[fs.dir.entry.obs] <https://wg21.link/fs.dir.entry.obs>`_,| `filesystem::directory_entry <https://reviews.llvm.org/D130860>`_,None,Adrian Vogelsgesang,|Complete|
-| `[thread.thread.id] <https://wg21.link/thread.thread.id>`_,| thread::id,None,Unassigned,|Not Started|
+| `[re.submatch.op] <https://wg21.link/re.submatch.op>`_,| sub_match,None,Mark de Wever,|In Progress|
+| `[thread.thread.id] <https://wg21.link/thread.thread.id>`_,| `thread::id <https://reviews.llvm.org/D131362>`_,None,Adrian Vogelsgesang,|Complete|

docs/Status/ZipProjects.csv

@@ -1,27 +1,27 @@
 Section,Description,Dependencies,Assignee,Complete
 | `[tuple.syn] <https://wg21.link/tuple.syn>`_, "`[tuple] basic_common_reference, common_type <https://reviews.llvm.org/D116538>`_", None, Nikolas Klauser, |Complete|
-| `[tuple.tuple] <https://wg21.link/tuple.tuple>`_, "`[tuple] constructor, assignment and swap overloads <https://reviews.llvm.org/D116621>`_", None, Nikolas Klauser, |In Progress|
+| `[tuple.tuple] <https://wg21.link/tuple.tuple>`_, "`[tuple] constructor, assignment and swap overloads <https://reviews.llvm.org/D116621>`_", None, Hui Xie, |Complete|
 | `[utility.syn] <https://wg21.link/utility.syn>`_, "[pair] basic_common_reference, common_type", None, Nikolas Klauser, |Complete|
-| `[pairs.pair] <https://wg21.link/pairs.pair>`_, "[pair] constructor, assignment and swap overloads", None, Nikolas Klauser, |Not Started|
+| `[pairs.pair] <https://wg21.link/pairs.pair>`_, "`[pair] constructor, assignment and swap overloads <https://reviews.llvm.org/D131495>`_", None, Hui Xie, |Complete|
 "| `[memory.syn] <https://wg21.link/memory.syn>`_
-| `[allocator.uses.construction] <https://wg21.link/allocator.uses.construction>`_", "[pair] uses_allocator_construction_args overloads", None, Unassigned, |Not Started|
+| `[allocator.uses.construction] <https://wg21.link/allocator.uses.construction>`_", "[pair] uses_allocator_construction_args overloads", None, Nikolas Klauser, |Complete|
-| `[vector.bool] <https://wg21.link/vector.bool>`_, "[vector<bool>::reference] add const operator= overload", None, Nikolas Klauser, |Not Started|
+| `[vector.bool] <https://wg21.link/vector.bool>`_, "[vector<bool>::reference] add const operator= overload", None, Hui Xie, |Not Started|
-| `[iterator.concept.winc] <https://wg21.link/iterator.concept.winc>`_, "Update weakly_comparable", None, Unassigned, |Not Started|
+| `[iterator.concept.winc] <https://wg21.link/iterator.concept.winc>`_, "Update weakly_comparable", None, Hui Xie, |Not Started|
 | `[range.zip] <https://wg21.link/ranges.syn>`_, "`zip_view <https://reviews.llvm.org/D122806>`_", "| `zip_view::iterator`
 | `zip_view::sentinel`", Hui Xie, |Complete|
 | `[range.zip.iterator] <https://wg21.link/range.zip.iterator>`_, "`zip_view::iterator <https://reviews.llvm.org/D122806>`_", None, Hui Xie, |Complete|
 | `[range.zip.sentinel] <https://wg21.link/range.zip.sentinel>`_, "`zip_view::sentinel <https://reviews.llvm.org/D122806>`_", None, Hui Xie, |Complete|
 | `[range.zip.transform.view] <https://wg21.link/range.zip.transform.view>`_, "zip_transform_view", "| `zip_transform_view::iterator`
-| `zip_transform_view::sentinel`", Unassigned, |Not Started|
+| `zip_transform_view::sentinel`", Hui Xie, |Not Started|
-| `[range.zip.transform.iterator] <https://wg21.link/range.zip.transform.iterator>`_, "zip_transform_view::iterator", None, Unassigned, |Not Started|
+| `[range.zip.transform.iterator] <https://wg21.link/range.zip.transform.iterator>`_, "zip_transform_view::iterator", None, Hui Xie, |Not Started|
-| `[range.zip.transform.sentinel] <https://wg21.link/range.zip.transform.sentinel>`_, "zip_transform_view::sentinel", None, Unassigned, |Not Started|
+| `[range.zip.transform.sentinel] <https://wg21.link/range.zip.transform.sentinel>`_, "zip_transform_view::sentinel", None, Hui Xie, |Not Started|
 | `[range.adjacent.view] <https://wg21.link/range.adjacent.view>`_, "adjacent_view", "| `adjacent_view::iterator`
-| `adjacent_view::sentinel`", Unassigned, |Not Started|
+| `adjacent_view::sentinel`", Hui Xie, |Not Started|
-| `[range.adjacent.iterator] <https://wg21.link/range.adjacent.iterator>`_, "adjacent_view::iterator", None, Unassigned, |Not Started|
+| `[range.adjacent.iterator] <https://wg21.link/range.adjacent.iterator>`_, "adjacent_view::iterator", None, unassigned, |Not Started|
-| `[range.adjacent.sentinel] <https://wg21.link/range.adjacent.sentinel>`_, "adjacent_view::sentinel", None, Unassigned, |Not Started|
+| `[range.adjacent.sentinel] <https://wg21.link/range.adjacent.sentinel>`_, "adjacent_view::sentinel", None, unassigned, |Not Started|
 | `[range.adjacent.transform.view] <https://wg21.link/range.adjacent.transform.view>`_, "adjacent_transform_view", "| `adjacent_transform_view::iterator`,
-| `adjacent_transform_view::sentinel`", Unassigned, |Not Started|
+| `adjacent_transform_view::sentinel`", Hui Xie, |Not Started|
-| `[range.adjacent.transform.iterator] <https://wg21.link/range.adjacent.transform.iterator>`_, "adjacent_transform_view::iterator", None, Unassigned, |Not Started|
+| `[range.adjacent.transform.iterator] <https://wg21.link/range.adjacent.transform.iterator>`_, "adjacent_transform_view::iterator", None, Hui Xie, |Not Started|
-| `[range.adjacent.transform.sentinel] <https://wg21.link/range.adjacent.transform.sentinel>`_, "adjacent_transform_view::sentinel", None, Unassigned, |Not Started|
+| `[range.adjacent.transform.sentinel] <https://wg21.link/range.adjacent.transform.sentinel>`_, "adjacent_transform_view::sentinel", None, Hui Xie, |Not Started|
 | `[ranges.syn] <https://wg21.link/ranges.syn>`_, "enable_borrowed_range zip_view and adjacent_view", "| `zip_view`
-| `adjacent_view`", Unassigned, |Not Started|
+| `adjacent_view`", Hui Xie, |Not Started|

docs/TestingLibcxx.rst

@@ -92,6 +92,14 @@ configuration easier.
      $ make -C <build> cxx-test-depends
      $ <build>/bin/llvm-lit -sv libcxx/test # will use your custom config file
 
+Additional tools
+----------------
+
+The libc++ test suite uses a few optional tools to improve the code quality.
+
+These tools are:
+- clang-tidy (you might need additional dev packages to compile libc++-specific clang-tidy checks)
+
 Writing Tests
 -------------
 

docs/UsingLibcxx.rst

@@ -122,6 +122,21 @@ provide pretty-printers itself. Those can be used as:
         -ex "python register_libcxx_printer_loader()" \
         <args>
 
+.. _include-what-you-use:
+
+include-what-you-use (IWYU)
+===========================
+
+libc++ provides an IWYU `mapping file <https://github.com/include-what-you-use/include-what-you-use/blob/master/docs/IWYUMappings.md>`,
+which drastically improves the accuracy of the tool when using libc++. To use the mapping file with
+IWYU, you should run the tool like so:
+
+.. code-block:: bash
+
+  $ include-what-you-use -Xiwyu /path/to/libcxx/include/libcxx.imp file.cpp
+
+If you would prefer to not use that flag, then you can replace ``/path/to/include-what-you-use/share/libcxx.imp```
+file with the libc++-provided ``libcxx.imp`` file.
 
 .. _assertions-mode:
 
@@ -157,12 +172,19 @@ library provides a default function that prints an error message and calls ``std
 that this function is provided by the static or shared library, so it is only available when deploying
 to a platform where the compiled library is sufficiently recent. On older platforms, the program will
 terminate in an unspecified unsuccessful manner, but the quality of diagnostics won't be great.
-However, users can also override that function with their own, which can be useful to either provide
+However, users can also override that mechanism at two different levels. First, the mechanism can be
-custom behavior or when deploying to an older platform where the default function isn't available.
+overriden at compile-time by defining the ``_LIBCPP_VERBOSE_ABORT(format, args...)`` variadic macro.
+When that macro is defined, it will be called with a format string as the first argument, followed by
+a series of arguments to format using printf-style formatting. Compile-time customization may be
+interesting to get precise control over code generation, however it is also inconvenient to use in
+some cases. Indeed, compile-time customization of the verbose termination function requires that all
+translation units be compiled with a consistent definition for ``_LIBCPP_VERBOSE_ABORT`` to avoid ODR
+violations, which can add complexity in the build system of users.
 
-Replacing the default verbose termination function is done by defining the
+Otherwise, if compile-time customization is not necessary, link-time customization of the handler is also
-``_LIBCPP_AVAILABILITY_CUSTOM_VERBOSE_ABORT_PROVIDED`` macro in all translation units of your program
+possible, similarly to how replacing ``operator new`` works. This mechanism trades off fine-grained control
-and defining the following function in exactly one translation unit:
+over the call site where the termination is initiated in exchange for more ergonomics. Link-time customization
+is done by simply defining the following function in exactly one translation unit of your program:
 
 .. code-block:: cpp
 
@@ -248,19 +270,9 @@ thread safety annotations.
   replacement scenarios from working, e.g. replacing `operator new` and
   expecting a non-replaced `operator new[]` to call the replaced `operator new`.
 
-**_LIBCPP_ENABLE_NODISCARD**:
-  Allow the library to add ``[[nodiscard]]`` attributes to entities not specified
-  as ``[[nodiscard]]`` by the current language dialect. This includes
-  backporting applications of ``[[nodiscard]]`` from newer dialects and
-  additional extended applications at the discretion of the library. All
-  additional applications of ``[[nodiscard]]`` are disabled by default.
-  See :ref:`Extended Applications of [[nodiscard]] <nodiscard extension>` for
-  more information.
-
 **_LIBCPP_DISABLE_NODISCARD_EXT**:
-  This macro prevents the library from applying ``[[nodiscard]]`` to entities
+  This macro disables library-extensions of ``[[nodiscard]]``.
-  purely as an extension. See :ref:`Extended Applications of [[nodiscard]] <nodiscard extension>`
+  See :ref:`Extended Applications of [[nodiscard]] <nodiscard extension>` for more information.
-  for more information.
 
 **_LIBCPP_DISABLE_DEPRECATION_WARNINGS**:
   This macro disables warnings when using deprecated components. For example,
@@ -350,8 +362,8 @@ Users who want help diagnosing misuses of STL functions may desire a more
 liberal application of ``[[nodiscard]]``.
 
 For this reason libc++ provides an extension that does just that! The
-extension must be enabled by defining ``_LIBCPP_ENABLE_NODISCARD``. The extended
+extension is enabled by default and can be disabled by defining ``_LIBCPP_DISABLE_NODISCARD_EXT``.
-applications of ``[[nodiscard]]`` takes two forms:
+The extended applications of ``[[nodiscard]]`` takes two forms:
 
 1. Backporting ``[[nodiscard]]`` to entities declared as such by the
    standard in newer dialects, but not in the present one.
@@ -359,17 +371,6 @@ applications of ``[[nodiscard]]`` takes two forms:
 2. Extended applications of ``[[nodiscard]]``, at the library's discretion,
    applied to entities never declared as such by the standard.
 
-Users may also opt-out of additional applications ``[[nodiscard]]`` using
-additional macros.
-
-Applications of the first form, which backport ``[[nodiscard]]`` from a newer
-dialect, may be disabled using macros specific to the dialect in which it was
-added. For example, ``_LIBCPP_DISABLE_NODISCARD_AFTER_CXX17``.
-
-Applications of the second form, which are pure extensions, may be disabled
-by defining ``_LIBCPP_DISABLE_NODISCARD_EXT``.
-
-
 Entities declared with ``_LIBCPP_NODISCARD_EXT``
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
@@ -414,6 +415,44 @@ which no dialect declares as such (See the second form described above).
 * ``search``
 * ``unique``
 * ``upper_bound``
+* ``ranges::adjacent_find``
+* ``ranges::all_of``
+* ``ranges::any_of``
+* ``ranges::binary_search``
+* ``ranges::clamp``
+* ``ranges::count_if``
+* ``ranges::count``
+* ``ranges::equal_range``
+* ``ranges::equal``
+* ``ranges::find_end``
+* ``ranges::find_first_of``
+* ``ranges::find_if_not``
+* ``ranges::find_if``
+* ``ranges::find``
+* ``ranges::get_temporary_buffer``
+* ``ranges::includes``
+* ``ranges::is_heap_until``
+* ``ranges::is_heap``
+* ``ranges::is_partitioned``
+* ``ranges::is_permutation``
+* ``ranges::is_sorted_until``
+* ``ranges::is_sorted``
+* ``ranges::lexicographical_compare``
+* ``ranges::lower_bound``
+* ``ranges::max_element``
+* ``ranges::max``
+* ``ranges::min_element``
+* ``ranges::min``
+* ``ranges::minmax_element``
+* ``ranges::minmax``
+* ``ranges::mismatch``
+* ``ranges::none_of``
+* ``ranges::remove_if``
+* ``ranges::remove``
+* ``ranges::search_n``
+* ``ranges::search``
+* ``ranges::unique``
+* ``ranges::upper_bound``
 * ``lock_guard``'s constructors
 * ``as_const``
 * ``bit_cast``
@@ -423,6 +462,44 @@ which no dialect declares as such (See the second form described above).
 * ``identity::operator()``
 * ``to_integer``
 * ``to_underlying``
+* ``signbit``
+* ``fpclassify``
+* ``isfinite``
+* ``isinf``
+* ``isnan``
+* ``isnormal``
+* ``isgreater``
+* ``isgreaterequal``
+* ``isless``
+* ``islessequal``
+* ``islessgreater``
+* ``isunordered``
+* ``ceil``
+* ``fabs``
+* ``floor``
+* ``cbrt``
+* ``copysign``
+* ``fmax``
+* ``fmin``
+* ``nearbyint``
+* ``rint``
+* ``round``
+* ``trunc``
+
+Extended integral type support
+------------------------------
+
+Several platforms support types that are not specified in the Standard, such as
+the 128-bit integral types ``__int128_t`` and ``__uint128_t``. As an extension,
+libc++ does a best-effort attempt to support these types like other integral
+types, by supporting them notably in:
+
+* ``<bits>``
+* ``<charconv>``
+* ``<functional>``
+* ``<type_traits>``
+* ``<format>``
+* ``<random>``
 
 Additional types supported in random distributions
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -432,3 +509,11 @@ distributions with types other than ``short``, ``int``, ``long``, ``long long``,
 undefined. As an extension, libc++ supports instantiating ``binomial_distribution``, ``discrete_distribution``,
 ``geometric_distribution``, ``negative_binomial_distribution``, ``poisson_distribution``, and ``uniform_int_distribution``
 with ``int8_t``, ``__int128_t`` and their unsigned versions.
+
+Extensions to ``<format>``
+--------------------------
+
+The exposition only type ``basic-format-string`` and its typedefs
+``format-string`` and ``wformat-string`` became ``basic_format_string``,
+``format_string``, and ``wformat_string`` in C++23. Libc++ makes these types
+available in C++20 as an extension.

docs/conf.py

@@ -48,9 +48,9 @@ copyright = u'2011-%d, LLVM Project' % date.today().year
 # built documents.
 #
 # The short X.Y version.
-version = '15.0'
+version = '17.0'
 # The full version, including alpha/beta/rc tags.
-release = '15.0'
+release = '17.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

docs/index.rst

@@ -93,6 +93,7 @@ reasons, but some of the major ones are:
   Further, both projects are apparently abandoned: STLport 5.2.1 was
   released in Oct'08, and STDCXX 4.2.1 in May'08.
 
+.. _SupportedPlatforms:
 
 Platform and Compiler Support
 =============================
@@ -104,8 +105,8 @@ velocity, libc++ drops support for older compilers as newer ones are released.
 ============ =============== ========================== =====================
 Compiler     Versions        Restrictions               Support policy
 ============ =============== ========================== =====================
-Clang        13, 14                                     latest two stable releases per `LLVM's release page <https://releases.llvm.org>`_
+Clang        14, 15, 16-git                             latest two stable releases per `LLVM's release page <https://releases.llvm.org>`_ and the development version
-AppleClang   13                                         latest stable release per `Xcode's release page <https://developer.apple.com/documentation/xcode-release-notes>`_
+AppleClang   14                                         latest stable release per `Xcode's release page <https://developer.apple.com/documentation/xcode-release-notes>`_
 Open XL      17.1 (AIX)                                 latest stable release per `Open XL's documentation page <https://www.ibm.com/docs/en/openxl-c-and-cpp-aix>`_
 GCC          12              In C++11 or later only     latest stable release per `GCC's release page <https://gcc.gnu.org/releases.html>`_
 ============ =============== ========================== =====================
@@ -175,6 +176,7 @@ Design Documents
    DesignDocs/ExtendedCXX03Support
    DesignDocs/FeatureTestMacros
    DesignDocs/FileTimeType
+   DesignDocs/HeaderRemovalPolicy
    DesignDocs/NoexceptPolicy
    DesignDocs/ThreadingSupportAPI
    DesignDocs/UniquePtrTrivialAbi
@@ -186,7 +188,7 @@ Build Bots and Test Coverage
 ============================
 
 * `Buildkite CI pipeline <https://buildkite.com/llvm-project/libcxx-ci>`_
-* `LLVM Buildbot Builders <http://lab.llvm.org:8011>`_
+* `LLVM Buildbot Builders <https://lab.llvm.org/buildbot>`_
 * :ref:`Adding New CI Jobs <AddingNewCIJobs>`
 
 

include/CMakeLists.txt

@@ -9,6 +9,7 @@ set(files
   __algorithm/copy.h
   __algorithm/copy_backward.h
   __algorithm/copy_if.h
+  __algorithm/copy_move_common.h
   __algorithm/copy_n.h
   __algorithm/count.h
   __algorithm/count_if.h
@@ -192,9 +193,19 @@ set(files
   __assert
   __availability
   __bit/bit_cast.h
+  __bit/bit_ceil.h
+  __bit/bit_floor.h
+  __bit/bit_log2.h
+  __bit/bit_width.h
+  __bit/blsr.h
   __bit/byteswap.h
+  __bit/countl.h
+  __bit/countr.h
+  __bit/endian.h
+  __bit/has_single_bit.h
+  __bit/popcount.h
+  __bit/rotate.h
   __bit_reference
-  __bits
   __bsd_locale_defaults.h
   __bsd_locale_fallbacks.h
   __charconv/chars_format.h
@@ -204,15 +215,20 @@ set(files
   __charconv/to_chars_result.h
   __chrono/calendar.h
   __chrono/convert_to_timespec.h
+  __chrono/convert_to_tm.h
   __chrono/day.h
   __chrono/duration.h
   __chrono/file_clock.h
+  __chrono/formatter.h
   __chrono/hh_mm_ss.h
   __chrono/high_resolution_clock.h
   __chrono/literals.h
   __chrono/month.h
   __chrono/month_weekday.h
   __chrono/monthday.h
+  __chrono/ostream.h
+  __chrono/parser_std_format_spec.h
+  __chrono/statically_widen.h
   __chrono/steady_clock.h
   __chrono/system_clock.h
   __chrono/time_point.h
@@ -264,6 +280,10 @@ set(files
   __debug
   __debug_utils/randomize_range.h
   __errc
+  __expected/bad_expected_access.h
+  __expected/expected.h
+  __expected/unexpect.h
+  __expected/unexpected.h
   __filesystem/copy_options.h
   __filesystem/directory_entry.h
   __filesystem/directory_iterator.h
@@ -282,13 +302,16 @@ set(files
   __filesystem/u8path.h
   __format/buffer.h
   __format/concepts.h
+  __format/container_adaptor.h
   __format/enable_insertable.h
+  __format/escaped_output_table.h
   __format/extended_grapheme_cluster_table.h
   __format/format_arg.h
   __format/format_arg_store.h
   __format/format_args.h
   __format/format_context.h
   __format/format_error.h
+  __format/format_functions.h
   __format/format_fwd.h
   __format/format_parse_context.h
   __format/format_string.h
@@ -302,7 +325,10 @@ set(files
   __format/formatter_output.h
   __format/formatter_pointer.h
   __format/formatter_string.h
+  __format/formatter_tuple.h
   __format/parser_std_format_spec.h
+  __format/range_default_formatter.h
+  __format/range_formatter.h
   __format/unicode.h
   __functional/binary_function.h
   __functional/binary_negate.h
@@ -332,8 +358,16 @@ set(files
   __functional/unary_negate.h
   __functional/unwrap_ref.h
   __functional/weak_result_type.h
+  __fwd/array.h
+  __fwd/get.h
+  __fwd/hash.h
+  __fwd/memory_resource.h
+  __fwd/pair.h
   __fwd/span.h
+  __fwd/string.h
   __fwd/string_view.h
+  __fwd/subrange.h
+  __fwd/tuple.h
   __hash_table
   __ios/fpos.h
   __iterator/access.h
@@ -358,6 +392,7 @@ set(files
   __iterator/iter_swap.h
   __iterator/iterator.h
   __iterator/iterator_traits.h
+  __iterator/iterator_with_data.h
   __iterator/mergeable.h
   __iterator/move_iterator.h
   __iterator/move_sentinel.h
@@ -370,6 +405,7 @@ set(files
   __iterator/readable_traits.h
   __iterator/reverse_access.h
   __iterator/reverse_iterator.h
+  __iterator/segmented_iterator.h
   __iterator/size.h
   __iterator/sortable.h
   __iterator/unreachable_sentinel.h
@@ -377,27 +413,39 @@ set(files
   __locale
   __mbstate_t.h
   __memory/addressof.h
+  __memory/align.h
   __memory/allocate_at_least.h
   __memory/allocation_guard.h
   __memory/allocator.h
   __memory/allocator_arg_t.h
+  __memory/allocator_destructor.h
   __memory/allocator_traits.h
   __memory/assume_aligned.h
   __memory/auto_ptr.h
+  __memory/builtin_new_allocator.h
   __memory/compressed_pair.h
   __memory/concepts.h
   __memory/construct_at.h
+  __memory/destruct_n.h
   __memory/pointer_traits.h
   __memory/ranges_construct_at.h
   __memory/ranges_uninitialized_algorithms.h
   __memory/raw_storage_iterator.h
   __memory/shared_ptr.h
   __memory/swap_allocator.h
+  __memory/temp_value.h
   __memory/temporary_buffer.h
   __memory/uninitialized_algorithms.h
   __memory/unique_ptr.h
   __memory/uses_allocator.h
+  __memory/uses_allocator_construction.h
   __memory/voidify.h
+  __memory_resource/memory_resource.h
+  __memory_resource/monotonic_buffer_resource.h
+  __memory_resource/polymorphic_allocator.h
+  __memory_resource/pool_options.h
+  __memory_resource/synchronized_pool_resource.h
+  __memory_resource/unsynchronized_pool_resource.h
   __mutex_base
   __node_handle
   __numeric/accumulate.h
@@ -452,6 +500,7 @@ set(files
   __random/weibull_distribution.h
   __ranges/access.h
   __ranges/all.h
+  __ranges/as_rvalue_view.h
   __ranges/common_view.h
   __ranges/concepts.h
   __ranges/copyable_box.h
@@ -459,12 +508,15 @@ set(files
   __ranges/dangling.h
   __ranges/data.h
   __ranges/drop_view.h
+  __ranges/drop_while_view.h
+  __ranges/elements_view.h
   __ranges/empty.h
   __ranges/empty_view.h
   __ranges/enable_borrowed_range.h
   __ranges/enable_view.h
   __ranges/filter_view.h
   __ranges/iota_view.h
+  __ranges/istream_view.h
   __ranges/join_view.h
   __ranges/lazy_split_view.h
   __ranges/non_propagating_cache.h
@@ -476,8 +528,10 @@ set(files
   __ranges/reverse_view.h
   __ranges/single_view.h
   __ranges/size.h
+  __ranges/split_view.h
   __ranges/subrange.h
   __ranges/take_view.h
+  __ranges/take_while_view.h
   __ranges/transform_view.h
   __ranges/view_interface.h
   __ranges/views.h
@@ -498,7 +552,6 @@ set(files
   __support/solaris/floatingpoint.h
   __support/solaris/wchar.h
   __support/solaris/xlocale.h
-  __support/win32/limits_msvc_win32.h
   __support/win32/locale_win32.h
   __support/xlocale/__nop_locale_mgmt.h
   __support/xlocale/__posix_l_fallback.h
@@ -507,7 +560,16 @@ set(files
   __thread/timed_backoff_policy.h
   __threading_support
   __tree
-  __tuple
+  __tuple_dir/apply_cv.h
+  __tuple_dir/make_tuple_types.h
+  __tuple_dir/pair_like.h
+  __tuple_dir/sfinae_helpers.h
+  __tuple_dir/tuple_element.h
+  __tuple_dir/tuple_indices.h
+  __tuple_dir/tuple_like.h
+  __tuple_dir/tuple_like_ext.h
+  __tuple_dir/tuple_size.h
+  __tuple_dir/tuple_types.h
   __type_traits/add_const.h
   __type_traits/add_cv.h
   __type_traits/add_lvalue_reference.h
@@ -518,6 +580,7 @@ set(files
   __type_traits/aligned_union.h
   __type_traits/alignment_of.h
   __type_traits/apply_cv.h
+  __type_traits/can_extract_key.h
   __type_traits/common_reference.h
   __type_traits/common_type.h
   __type_traits/conditional.h
@@ -525,6 +588,7 @@ set(files
   __type_traits/copy_cv.h
   __type_traits/copy_cvref.h
   __type_traits/decay.h
+  __type_traits/dependent_type.h
   __type_traits/disjunction.h
   __type_traits/enable_if.h
   __type_traits/extent.h
@@ -533,12 +597,15 @@ set(files
   __type_traits/integral_constant.h
   __type_traits/is_abstract.h
   __type_traits/is_aggregate.h
+  __type_traits/is_allocator.h
+  __type_traits/is_always_bitcastable.h
   __type_traits/is_arithmetic.h
   __type_traits/is_array.h
   __type_traits/is_assignable.h
   __type_traits/is_base_of.h
   __type_traits/is_bounded_array.h
   __type_traits/is_callable.h
+  __type_traits/is_char_like_type.h
   __type_traits/is_class.h
   __type_traits/is_compound.h
   __type_traits/is_const.h
@@ -556,6 +623,7 @@ set(files
   __type_traits/is_floating_point.h
   __type_traits/is_function.h
   __type_traits/is_fundamental.h
+  __type_traits/is_implicitly_default_constructible.h
   __type_traits/is_integral.h
   __type_traits/is_literal_type.h
   __type_traits/is_member_function_pointer.h
@@ -586,7 +654,9 @@ set(files
   __type_traits/is_scoped_enum.h
   __type_traits/is_signed.h
   __type_traits/is_signed_integer.h
+  __type_traits/is_specialization.h
   __type_traits/is_standard_layout.h
+  __type_traits/is_swappable.h
   __type_traits/is_trivial.h
   __type_traits/is_trivially_assignable.h
   __type_traits/is_trivially_constructible.h
@@ -606,20 +676,26 @@ set(files
   __type_traits/is_volatile.h
   __type_traits/lazy.h
   __type_traits/make_32_64_or_128_bit.h
+  __type_traits/make_const_lvalue_ref.h
   __type_traits/make_signed.h
   __type_traits/make_unsigned.h
+  __type_traits/maybe_const.h
   __type_traits/nat.h
   __type_traits/negation.h
+  __type_traits/noexcept_move_assign_container.h
   __type_traits/promote.h
   __type_traits/rank.h
   __type_traits/remove_all_extents.h
   __type_traits/remove_const.h
+  __type_traits/remove_const_ref.h
   __type_traits/remove_cv.h
   __type_traits/remove_cvref.h
   __type_traits/remove_extent.h
   __type_traits/remove_pointer.h
   __type_traits/remove_reference.h
   __type_traits/remove_volatile.h
+  __type_traits/result_of.h
+  __type_traits/strip_signature.h
   __type_traits/type_identity.h
   __type_traits/type_list.h
   __type_traits/underlying_type.h
@@ -628,9 +704,12 @@ set(files
   __utility/as_const.h
   __utility/auto_cast.h
   __utility/cmp.h
+  __utility/convert_to_integral.h
   __utility/declval.h
+  __utility/exception_guard.h
   __utility/exchange.h
   __utility/forward.h
+  __utility/forward_like.h
   __utility/in_place.h
   __utility/integer_sequence.h
   __utility/move.h
@@ -640,7 +719,6 @@ set(files
   __utility/rel_ops.h
   __utility/swap.h
   __utility/to_underlying.h
-  __utility/transaction.h
   __utility/unreachable.h
   __variant/monostate.h
   __verbose_abort
@@ -690,6 +768,7 @@ set(files
   errno.h
   exception
   execution
+  expected
   experimental/__config
   experimental/__memory
   experimental/algorithm
@@ -731,6 +810,7 @@ set(files
   istream
   iterator
   latch
+  libcxx.imp
   limits
   limits.h
   list
@@ -739,6 +819,7 @@ set(files
   map
   math.h
   memory
+  memory_resource
   mutex
   new
   numbers
@@ -755,6 +836,7 @@ set(files
   set
   setjmp.h
   shared_mutex
+  source_location
   span
   sstream
   stack
@@ -789,7 +871,7 @@ set(files
   wctype.h
   )
 
-foreach(feature LIBCXX_ENABLE_FILESYSTEM LIBCXX_ENABLE_LOCALIZATION LIBCXX_ENABLE_THREADS LIBCXX_ENABLE_WIDE_CHARACTERS)
+foreach(feature LIBCXX_ENABLE_FILESYSTEM LIBCXX_ENABLE_LOCALIZATION LIBCXX_ENABLE_FSTREAM LIBCXX_ENABLE_THREADS LIBCXX_ENABLE_WIDE_CHARACTERS)
   if (NOT ${${feature}})
     set(requires_${feature} "requires LIBCXX_CONFIGURED_WITHOUT_SUPPORT_FOR_THIS_HEADER")
   endif()
@@ -828,13 +910,18 @@ if (LIBCXX_INSTALL_HEADERS)
     )
   endforeach()
 
-  # Install the generated __config_site and the generated modulemap file.
+  # Install the generated __config_site file to the per-target include dir.
   install(FILES "${LIBCXX_GENERATED_INCLUDE_TARGET_DIR}/__config_site"
-                "${LIBCXX_GENERATED_INCLUDE_DIR}/module.modulemap"
     DESTINATION "${LIBCXX_INSTALL_INCLUDE_TARGET_DIR}"
     PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
     COMPONENT cxx-headers)
 
+  # Install the generated modulemap file to the generic include dir.
+  install(FILES "${LIBCXX_GENERATED_INCLUDE_DIR}/module.modulemap"
+    DESTINATION "${LIBCXX_INSTALL_INCLUDE_DIR}"
+    PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
+    COMPONENT cxx-headers)
+
   if (NOT CMAKE_CONFIGURATION_TYPES)
     add_custom_target(install-cxx-headers
                       DEPENDS cxx-headers

include/__algorithm/adjacent_find.h

@@ -23,7 +23,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _Iter, class _Sent, class _BinaryPredicate>
-_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 _Iter
+_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Iter
 __adjacent_find(_Iter __first, _Sent __last, _BinaryPredicate&& __pred) {
   if (__first == __last)
     return __first;
@@ -37,16 +37,15 @@ __adjacent_find(_Iter __first, _Sent __last, _BinaryPredicate&& __pred) {
 }
 
 template <class _ForwardIterator, class _BinaryPredicate>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
 adjacent_find(_ForwardIterator __first, _ForwardIterator __last, _BinaryPredicate __pred) {
   return std::__adjacent_find(std::move(__first), std::move(__last), __pred);
 }
 
 template <class _ForwardIterator>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
 adjacent_find(_ForwardIterator __first, _ForwardIterator __last) {
-  typedef typename iterator_traits<_ForwardIterator>::value_type __v;
+  return std::adjacent_find(std::move(__first), std::move(__last), __equal_to());
-  return std::adjacent_find(std::move(__first), std::move(__last), __equal_to<__v>());
 }
 
 _LIBCPP_END_NAMESPACE_STD

include/__algorithm/all_of.h

@@ -19,7 +19,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InputIterator, class _Predicate>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 all_of(_InputIterator __first, _InputIterator __last, _Predicate __pred) {
   for (; __first != __last; ++__first)
     if (!__pred(*__first))

include/__algorithm/any_of.h

@@ -19,7 +19,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InputIterator, class _Predicate>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 any_of(_InputIterator __first, _InputIterator __last, _Predicate __pred) {
   for (; __first != __last; ++__first)
     if (__pred(*__first))

include/__algorithm/binary_search.h

@@ -23,18 +23,17 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _ForwardIterator, class _Tp, class _Compare>
 _LIBCPP_NODISCARD_EXT inline
-_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 bool
 binary_search(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value, _Compare __comp)
 {
-    using _Comp_ref = typename __comp_ref_type<_Compare>::type;
+    __first = std::lower_bound<_ForwardIterator, _Tp, __comp_ref_type<_Compare> >(__first, __last, __value, __comp);
-    __first = std::lower_bound<_ForwardIterator, _Tp, _Comp_ref>(__first, __last, __value, __comp);
     return __first != __last && !__comp(__value, *__first);
 }
 
 template <class _ForwardIterator, class _Tp>
 _LIBCPP_NODISCARD_EXT inline
-_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 bool
 binary_search(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value)
 {

include/__algorithm/comp.h

@@ -17,73 +17,47 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-// I'd like to replace these with _VSTD::equal_to<void>, but can't because:
+struct __equal_to {
-//   * That only works with C++14 and later, and
+  template <class _T1, class _T2>
-//   * We haven't included <functional> here.
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 bool operator()(const _T1& __x, const _T2& __y) const {
-template <class _T1, class _T2 = _T1>
+    return __x == __y;
-struct __equal_to
+  }
-{
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 bool operator()(const _T1& __x, const _T1& __y) const {return __x == __y;}
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 bool operator()(const _T1& __x, const _T2& __y) const {return __x == __y;}
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 bool operator()(const _T2& __x, const _T1& __y) const {return __x == __y;}
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 bool operator()(const _T2& __x, const _T2& __y) const {return __x == __y;}
-};
-
-template <class _T1>
-struct __equal_to<_T1, _T1>
-{
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-    bool operator()(const _T1& __x, const _T1& __y) const {return __x == __y;}
-};
-
-template <class _T1>
-struct __equal_to<const _T1, _T1>
-{
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-    bool operator()(const _T1& __x, const _T1& __y) const {return __x == __y;}
-};
-
-template <class _T1>
-struct __equal_to<_T1, const _T1>
-{
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-    bool operator()(const _T1& __x, const _T1& __y) const {return __x == __y;}
 };
 
 template <class _T1, class _T2 = _T1>
 struct __less
 {
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14
     bool operator()(const _T1& __x, const _T1& __y) const {return __x < __y;}
 
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14
     bool operator()(const _T1& __x, const _T2& __y) const {return __x < __y;}
 
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14
     bool operator()(const _T2& __x, const _T1& __y) const {return __x < __y;}
 
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14
     bool operator()(const _T2& __x, const _T2& __y) const {return __x < __y;}
 };
 
 template <class _T1>
 struct __less<_T1, _T1>
 {
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14
     bool operator()(const _T1& __x, const _T1& __y) const {return __x < __y;}
 };
 
 template <class _T1>
 struct __less<const _T1, _T1>
 {
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14
     bool operator()(const _T1& __x, const _T1& __y) const {return __x < __y;}
 };
 
 template <class _T1>
 struct __less<_T1, const _T1>
 {
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14
     bool operator()(const _T1& __x, const _T1& __y) const {return __x < __y;}
 };
 

include/__algorithm/comp_ref_type.h

@@ -23,11 +23,11 @@ template <class _Compare>
 struct __debug_less
 {
     _Compare &__comp_;
-    _LIBCPP_CONSTEXPR_AFTER_CXX11
+    _LIBCPP_CONSTEXPR_SINCE_CXX14
     __debug_less(_Compare& __c) : __comp_(__c) {}
 
     template <class _Tp, class _Up>
-    _LIBCPP_CONSTEXPR_AFTER_CXX11
+    _LIBCPP_CONSTEXPR_SINCE_CXX14
     bool operator()(const _Tp& __x,  const _Up& __y)
     {
         bool __r = __comp_(__x, __y);
@@ -37,7 +37,7 @@ struct __debug_less
     }
 
     template <class _Tp, class _Up>
-    _LIBCPP_CONSTEXPR_AFTER_CXX11
+    _LIBCPP_CONSTEXPR_SINCE_CXX14
     bool operator()(_Tp& __x,  _Up& __y)
     {
         bool __r = __comp_(__x, __y);
@@ -47,10 +47,10 @@ struct __debug_less
     }
 
     template <class _LHS, class _RHS>
-    _LIBCPP_CONSTEXPR_AFTER_CXX11
+    _LIBCPP_CONSTEXPR_SINCE_CXX14
     inline _LIBCPP_INLINE_VISIBILITY
-    decltype((void)declval<_Compare&>()(
+    decltype((void)std::declval<_Compare&>()(
-        declval<_LHS &>(), declval<_RHS &>()))
+        std::declval<_LHS &>(), std::declval<_RHS &>()))
     __do_compare_assert(int, _LHS & __l, _RHS & __r) {
         _LIBCPP_DEBUG_ASSERT(!__comp_(__l, __r),
             "Comparator does not induce a strict weak ordering");
@@ -59,21 +59,20 @@ struct __debug_less
     }
 
     template <class _LHS, class _RHS>
-    _LIBCPP_CONSTEXPR_AFTER_CXX11
+    _LIBCPP_CONSTEXPR_SINCE_CXX14
     inline _LIBCPP_INLINE_VISIBILITY
     void __do_compare_assert(long, _LHS &, _RHS &) {}
 };
 
-template <class _Comp>
+// Pass the comparator by lvalue reference. Or in debug mode, using a
-struct __comp_ref_type {
+// debugging wrapper that stores a reference.
-  // Pass the comparator by lvalue reference. Or in debug mode, using a
-  // debugging wrapper that stores a reference.
 #ifdef _LIBCPP_ENABLE_DEBUG_MODE
-  typedef __debug_less<_Comp> type;
+template <class _Comp>
+using __comp_ref_type = __debug_less<_Comp>;
 #else
-  typedef _Comp& type;
+template <class _Comp>
+using __comp_ref_type = _Comp&;
 #endif
-};
 
 _LIBCPP_END_NAMESPACE_STD
 

include/__algorithm/copy.h

@@ -9,100 +9,118 @@
 #ifndef _LIBCPP___ALGORITHM_COPY_H
 #define _LIBCPP___ALGORITHM_COPY_H
 
-#include <__algorithm/unwrap_iter.h>
+#include <__algorithm/copy_move_common.h>
-#include <__algorithm/unwrap_range.h>
+#include <__algorithm/iterator_operations.h>
+#include <__algorithm/min.h>
 #include <__config>
-#include <__iterator/iterator_traits.h>
+#include <__iterator/segmented_iterator.h>
-#include <__iterator/reverse_iterator.h>
+#include <__type_traits/common_type.h>
 #include <__utility/move.h>
 #include <__utility/pair.h>
-#include <cstring>
-#include <type_traits>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
 #endif
 
+_LIBCPP_PUSH_MACROS
+#include <__undef_macros>
+
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-// copy
+template <class, class _InIter, class _Sent, class _OutIter>
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_InIter, _OutIter> __copy(_InIter, _Sent, _OutIter);
 
-template <class _InIter, class _Sent, class _OutIter>
+template <class _AlgPolicy>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
+struct __copy_loop {
-pair<_InIter, _OutIter> __copy_impl(_InIter __first, _Sent __last, _OutIter __result) {
+  template <class _InIter, class _Sent, class _OutIter>
-  while (__first != __last) {
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_InIter, _OutIter>
-    *__result = *__first;
+  operator()(_InIter __first, _Sent __last, _OutIter __result) const {
-    ++__first;
+    while (__first != __last) {
-    ++__result;
+      *__result = *__first;
+      ++__first;
+      ++__result;
+    }
+
+    return std::make_pair(std::move(__first), std::move(__result));
   }
-  return pair<_InIter, _OutIter>(std::move(__first), std::move(__result));
-}
 
-template <class _InValueT,
+  template <class _InIter, class _OutIter, __enable_if_t<__is_segmented_iterator<_InIter>::value, int> = 0>
-          class _OutValueT,
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_InIter, _OutIter>
-          class = __enable_if_t<is_same<typename remove_const<_InValueT>::type, _OutValueT>::value
+  operator()(_InIter __first, _InIter __last, _OutIter __result) const {
-                             && is_trivially_copy_assignable<_OutValueT>::value> >
+    using _Traits = __segmented_iterator_traits<_InIter>;
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
+    auto __sfirst = _Traits::__segment(__first);
-pair<_InValueT*, _OutValueT*> __copy_impl(_InValueT* __first, _InValueT* __last, _OutValueT* __result) {
+    auto __slast  = _Traits::__segment(__last);
-  if (__libcpp_is_constant_evaluated()
+    if (__sfirst == __slast) {
-// TODO: Remove this once GCC supports __builtin_memmove during constant evaluation
+      auto __iters = std::__copy<_AlgPolicy>(_Traits::__local(__first), _Traits::__local(__last), std::move(__result));
-#ifndef _LIBCPP_COMPILER_GCC
+      return std::make_pair(__last, std::move(__iters.second));
-      && !is_trivially_copyable<_InValueT>::value
+    }
-#endif
-     )
-    return std::__copy_impl<_InValueT*, _InValueT*, _OutValueT*>(__first, __last, __result);
-  const size_t __n = static_cast<size_t>(__last - __first);
-  if (__n > 0)
-    ::__builtin_memmove(__result, __first, __n * sizeof(_OutValueT));
-  return std::make_pair(__first + __n, __result + __n);
-}
 
-template <class _InIter, class _OutIter,
+    __result = std::__copy<_AlgPolicy>(_Traits::__local(__first), _Traits::__end(__sfirst), std::move(__result)).second;
-          __enable_if_t<is_same<typename remove_const<__iter_value_type<_InIter> >::type, __iter_value_type<_OutIter> >::value
+    ++__sfirst;
-                      && __is_cpp17_contiguous_iterator<typename _InIter::iterator_type>::value
+    while (__sfirst != __slast) {
-                      && __is_cpp17_contiguous_iterator<typename _OutIter::iterator_type>::value
+      __result =
-                      && is_trivially_copy_assignable<__iter_value_type<_OutIter> >::value
+          std::__copy<_AlgPolicy>(_Traits::__begin(__sfirst), _Traits::__end(__sfirst), std::move(__result)).second;
-                      && __is_reverse_iterator<_InIter>::value
+      ++__sfirst;
-                      && __is_reverse_iterator<_OutIter>::value, int> = 0>
+    }
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
+    __result =
-pair<_InIter, _OutIter>
+        std::__copy<_AlgPolicy>(_Traits::__begin(__sfirst), _Traits::__local(__last), std::move(__result)).second;
-__copy_impl(_InIter __first, _InIter __last, _OutIter __result) {
+    return std::make_pair(__last, std::move(__result));
-  auto __first_base = std::__unwrap_iter(__first.base());
+  }
-  auto __last_base = std::__unwrap_iter(__last.base());
-  auto __result_base = std::__unwrap_iter(__result.base());
-  auto __result_first = __result_base - (__first_base - __last_base);
-  std::__copy_impl(__last_base, __first_base, __result_first);
-  return std::make_pair(__last, _OutIter(std::__rewrap_iter(__result.base(), __result_first)));
-}
 
-template <class _InIter, class _Sent, class _OutIter,
+  template <class _InIter,
-          __enable_if_t<!(is_copy_constructible<_InIter>::value
+            class _OutIter,
-                       && is_copy_constructible<_Sent>::value
+            __enable_if_t<__is_cpp17_random_access_iterator<_InIter>::value &&
-                       && is_copy_constructible<_OutIter>::value), int> = 0 >
+                              !__is_segmented_iterator<_InIter>::value && __is_segmented_iterator<_OutIter>::value,
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
+                          int> = 0>
-pair<_InIter, _OutIter> __copy(_InIter __first, _Sent __last, _OutIter __result) {
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_InIter, _OutIter>
-  return std::__copy_impl(std::move(__first), std::move(__last), std::move(__result));
+  operator()(_InIter __first, _InIter __last, _OutIter __result) {
-}
+    using _Traits = __segmented_iterator_traits<_OutIter>;
+    using _DiffT  = typename common_type<__iter_diff_t<_InIter>, __iter_diff_t<_OutIter> >::type;
 
-template <class _InIter, class _Sent, class _OutIter,
+    if (__first == __last)
-          __enable_if_t<is_copy_constructible<_InIter>::value
+      return std::make_pair(std::move(__first), std::move(__result));
-                     && is_copy_constructible<_Sent>::value
+
-                     && is_copy_constructible<_OutIter>::value, int> = 0>
+    auto __local_first      = _Traits::__local(__result);
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
+    auto __segment_iterator = _Traits::__segment(__result);
-pair<_InIter, _OutIter> __copy(_InIter __first, _Sent __last, _OutIter __result) {
+    while (true) {
-  auto __range = std::__unwrap_range(__first, __last);
+      auto __local_last = _Traits::__end(__segment_iterator);
-  auto __ret   = std::__copy_impl(std::move(__range.first), std::move(__range.second), std::__unwrap_iter(__result));
+      auto __size       = std::min<_DiffT>(__local_last - __local_first, __last - __first);
-  return std::make_pair(
+      auto __iters      = std::__copy<_AlgPolicy>(__first, __first + __size, __local_first);
-      std::__rewrap_range<_Sent>(__first, __ret.first), std::__rewrap_iter(__result, __ret.second));
+      __first           = std::move(__iters.first);
+
+      if (__first == __last)
+        return std::make_pair(std::move(__first), _Traits::__compose(__segment_iterator, std::move(__iters.second)));
+
+      __local_first = _Traits::__begin(++__segment_iterator);
+    }
+  }
+};
+
+struct __copy_trivial {
+  // At this point, the iterators have been unwrapped so any `contiguous_iterator` has been unwrapped to a pointer.
+  template <class _In, class _Out,
+            __enable_if_t<__can_lower_copy_assignment_to_memmove<_In, _Out>::value, int> = 0>
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_In*, _Out*>
+  operator()(_In* __first, _In* __last, _Out* __result) const {
+    return std::__copy_trivial_impl(__first, __last, __result);
+  }
+};
+
+template <class _AlgPolicy, class _InIter, class _Sent, class _OutIter>
+pair<_InIter, _OutIter> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
+__copy(_InIter __first, _Sent __last, _OutIter __result) {
+  return std::__dispatch_copy_or_move<_AlgPolicy, __copy_loop<_AlgPolicy>, __copy_trivial>(
+      std::move(__first), std::move(__last), std::move(__result));
 }
 
 template <class _InputIterator, class _OutputIterator>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator
-_OutputIterator
 copy(_InputIterator __first, _InputIterator __last, _OutputIterator __result) {
-  return std::__copy(__first, __last, __result).second;
+  return std::__copy<_ClassicAlgPolicy>(__first, __last, __result).second;
 }
 
 _LIBCPP_END_NAMESPACE_STD
 
+_LIBCPP_POP_MACROS
+
 #endif // _LIBCPP___ALGORITHM_COPY_H

include/__algorithm/copy_backward.h

@@ -9,53 +9,135 @@
 #ifndef _LIBCPP___ALGORITHM_COPY_BACKWARD_H
 #define _LIBCPP___ALGORITHM_COPY_BACKWARD_H
 
-#include <__algorithm/copy.h>
+#include <__algorithm/copy_move_common.h>
 #include <__algorithm/iterator_operations.h>
-#include <__algorithm/ranges_copy.h>
+#include <__algorithm/min.h>
-#include <__algorithm/unwrap_iter.h>
-#include <__concepts/same_as.h>
 #include <__config>
-#include <__iterator/iterator_traits.h>
+#include <__iterator/segmented_iterator.h>
-#include <__iterator/reverse_iterator.h>
+#include <__type_traits/common_type.h>
-#include <__ranges/subrange.h>
+#include <__type_traits/is_copy_constructible.h>
 #include <__utility/move.h>
 #include <__utility/pair.h>
-#include <type_traits>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
 #endif
 
+_LIBCPP_PUSH_MACROS
+#include <__undef_macros>
+
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-template <class _AlgPolicy, class _InputIterator, class _OutputIterator,
+template <class _AlgPolicy, class _InIter, class _Sent, class _OutIter>
-          __enable_if_t<is_same<_AlgPolicy, _ClassicAlgPolicy>::value, int> = 0>
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 pair<_InIter, _OutIter>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 pair<_InputIterator, _OutputIterator>
+__copy_backward(_InIter __first, _Sent __last, _OutIter __result);
-__copy_backward(_InputIterator __first, _InputIterator __last, _OutputIterator __result) {
-  auto __ret = std::__copy(
-      __unconstrained_reverse_iterator<_InputIterator>(__last),
-      __unconstrained_reverse_iterator<_InputIterator>(__first),
-      __unconstrained_reverse_iterator<_OutputIterator>(__result));
-  return pair<_InputIterator, _OutputIterator>(__ret.first.base(), __ret.second.base());
-}
 
-#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+template <class _AlgPolicy>
-template <class _AlgPolicy, class _Iter1, class _Sent1, class _Iter2,
+struct __copy_backward_loop {
-          __enable_if_t<is_same<_AlgPolicy, _RangeAlgPolicy>::value, int> = 0>
+  template <class _InIter, class _Sent, class _OutIter>
-_LIBCPP_HIDE_FROM_ABI constexpr pair<_Iter1, _Iter2> __copy_backward(_Iter1 __first, _Sent1 __last, _Iter2 __result) {
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_InIter, _OutIter>
-  auto __last_iter     = _IterOps<_AlgPolicy>::next(__first, std::move(__last));
+  operator()(_InIter __first, _Sent __last, _OutIter __result) const {
-  auto __reverse_range = std::__reverse_range(std::ranges::subrange(std::move(__first), __last_iter));
+    auto __last_iter          = _IterOps<_AlgPolicy>::next(__first, __last);
-  auto __ret           = ranges::copy(std::move(__reverse_range), std::make_reverse_iterator(__result));
+    auto __original_last_iter = __last_iter;
-  return std::make_pair(__last_iter, __ret.out.base());
+
+    while (__first != __last_iter) {
+      *--__result = *--__last_iter;
+    }
+
+    return std::make_pair(std::move(__original_last_iter), std::move(__result));
+  }
+
+  template <class _InIter, class _OutIter, __enable_if_t<__is_segmented_iterator<_InIter>::value, int> = 0>
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_InIter, _OutIter>
+  operator()(_InIter __first, _InIter __last, _OutIter __result) const {
+    using _Traits = __segmented_iterator_traits<_InIter>;
+    auto __sfirst = _Traits::__segment(__first);
+    auto __slast  = _Traits::__segment(__last);
+    if (__sfirst == __slast) {
+      auto __iters =
+          std::__copy_backward<_AlgPolicy>(_Traits::__local(__first), _Traits::__local(__last), std::move(__result));
+      return std::make_pair(__last, __iters.second);
+    }
+
+    __result =
+        std::__copy_backward<_AlgPolicy>(_Traits::__begin(__slast), _Traits::__local(__last), std::move(__result))
+            .second;
+    --__slast;
+    while (__sfirst != __slast) {
+      __result =
+          std::__copy_backward<_AlgPolicy>(_Traits::__begin(__slast), _Traits::__end(__slast), std::move(__result))
+              .second;
+      --__slast;
+    }
+    __result = std::__copy_backward<_AlgPolicy>(_Traits::__local(__first), _Traits::__end(__slast), std::move(__result))
+                   .second;
+    return std::make_pair(__last, std::move(__result));
+  }
+
+  template <class _InIter,
+            class _OutIter,
+            __enable_if_t<__is_cpp17_random_access_iterator<_InIter>::value &&
+                              !__is_segmented_iterator<_InIter>::value && __is_segmented_iterator<_OutIter>::value,
+                          int> = 0>
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_InIter, _OutIter>
+  operator()(_InIter __first, _InIter __last, _OutIter __result) {
+    using _Traits           = __segmented_iterator_traits<_OutIter>;
+    auto __orig_last        = __last;
+    auto __segment_iterator = _Traits::__segment(__result);
+
+    // When the range contains no elements, __result might not be a valid iterator
+    if (__first == __last)
+      return std::make_pair(__first, __result);
+
+    auto __local_last = _Traits::__local(__result);
+    while (true) {
+      using _DiffT = typename common_type<__iter_diff_t<_InIter>, __iter_diff_t<_OutIter> >::type;
+
+      auto __local_first = _Traits::__begin(__segment_iterator);
+      auto __size        = std::min<_DiffT>(__local_last - __local_first, __last - __first);
+      auto __iter        = std::__copy_backward<_AlgPolicy>(__last - __size, __last, __local_last).second;
+      __last -= __size;
+
+      if (__first == __last)
+        return std::make_pair(std::move(__orig_last), _Traits::__compose(__segment_iterator, std::move(__iter)));
+      --__segment_iterator;
+      __local_last = _Traits::__end(__segment_iterator);
+    }
+  }
+};
+
+struct __copy_backward_trivial {
+  // At this point, the iterators have been unwrapped so any `contiguous_iterator` has been unwrapped to a pointer.
+  template <class _In, class _Out,
+            __enable_if_t<__can_lower_copy_assignment_to_memmove<_In, _Out>::value, int> = 0>
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_In*, _Out*>
+  operator()(_In* __first, _In* __last, _Out* __result) const {
+    return std::__copy_backward_trivial_impl(__first, __last, __result);
+  }
+};
+
+template <class _AlgPolicy, class _BidirectionalIterator1, class _Sentinel, class _BidirectionalIterator2>
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 pair<_BidirectionalIterator1, _BidirectionalIterator2>
+__copy_backward(_BidirectionalIterator1 __first, _Sentinel __last, _BidirectionalIterator2 __result) {
+  return std::__dispatch_copy_or_move<_AlgPolicy, __copy_backward_loop<_AlgPolicy>, __copy_backward_trivial>(
+      std::move(__first), std::move(__last), std::move(__result));
 }
-#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
 
 template <class _BidirectionalIterator1, class _BidirectionalIterator2>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 _BidirectionalIterator2
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
-copy_backward(_BidirectionalIterator1 __first, _BidirectionalIterator1 __last, _BidirectionalIterator2 __result) {
+_BidirectionalIterator2
-  return std::__copy_backward<_ClassicAlgPolicy>(__first, __last, __result).second;
+copy_backward(_BidirectionalIterator1 __first, _BidirectionalIterator1 __last,
+              _BidirectionalIterator2 __result)
+{
+  static_assert(std::is_copy_constructible<_BidirectionalIterator1>::value &&
+                std::is_copy_constructible<_BidirectionalIterator1>::value, "Iterators must be copy constructible.");
+
+  return std::__copy_backward<_ClassicAlgPolicy>(
+      std::move(__first), std::move(__last), std::move(__result)).second;
 }
 
 _LIBCPP_END_NAMESPACE_STD
 
+_LIBCPP_POP_MACROS
+
 #endif // _LIBCPP___ALGORITHM_COPY_BACKWARD_H

include/__algorithm/copy_if.h

@@ -18,7 +18,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template<class _InputIterator, class _OutputIterator, class _Predicate>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 _OutputIterator
 copy_if(_InputIterator __first, _InputIterator __last,
         _OutputIterator __result, _Predicate __pred)

include/__algorithm/copy_move_common.h

@@ -0,0 +1,163 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___ALGORITHM_COPY_MOVE_COMMON_H
+#define _LIBCPP___ALGORITHM_COPY_MOVE_COMMON_H
+
+#include <__algorithm/iterator_operations.h>
+#include <__algorithm/unwrap_iter.h>
+#include <__algorithm/unwrap_range.h>
+#include <__config>
+#include <__iterator/iterator_traits.h>
+#include <__memory/pointer_traits.h>
+#include <__type_traits/enable_if.h>
+#include <__type_traits/is_always_bitcastable.h>
+#include <__type_traits/is_constant_evaluated.h>
+#include <__type_traits/is_copy_constructible.h>
+#include <__type_traits/is_trivially_assignable.h>
+#include <__type_traits/is_trivially_copyable.h>
+#include <__type_traits/is_volatile.h>
+#include <__utility/move.h>
+#include <__utility/pair.h>
+#include <cstddef>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#  pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+// Type traits.
+
+template <class _From, class _To>
+struct __can_lower_copy_assignment_to_memmove {
+  static const bool value =
+    // If the types are always bitcastable, it's valid to do a bitwise copy between them.
+    __is_always_bitcastable<_From, _To>::value &&
+    // Reject conversions that wouldn't be performed by the regular built-in assignment (e.g. between arrays).
+    is_trivially_assignable<_To&, const _From&>::value &&
+    // `memmove` doesn't accept `volatile` pointers, make sure the optimization SFINAEs away in that case.
+    !is_volatile<_From>::value &&
+    !is_volatile<_To>::value;
+};
+
+template <class _From, class _To>
+struct __can_lower_move_assignment_to_memmove {
+  static const bool value =
+    __is_always_bitcastable<_From, _To>::value &&
+    is_trivially_assignable<_To&, _From&&>::value &&
+    !is_volatile<_From>::value &&
+    !is_volatile<_To>::value;
+};
+
+// `memmove` algorithms implementation.
+
+template <class _In, class _Out>
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_In*, _Out*>
+__copy_trivial_impl(_In* __first, _In* __last, _Out* __result) {
+  const size_t __n = static_cast<size_t>(__last - __first);
+  ::__builtin_memmove(__result, __first, __n * sizeof(_Out));
+
+  return std::make_pair(__last, __result + __n);
+}
+
+template <class _In, class _Out>
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_In*, _Out*>
+__copy_backward_trivial_impl(_In* __first, _In* __last, _Out* __result) {
+  const size_t __n = static_cast<size_t>(__last - __first);
+  __result -= __n;
+
+  ::__builtin_memmove(__result, __first, __n * sizeof(_Out));
+
+  return std::make_pair(__last, __result);
+}
+
+// Iterator unwrapping and dispatching to the correct overload.
+
+template <class _F1, class _F2>
+struct __overload : _F1, _F2 {
+  using _F1::operator();
+  using _F2::operator();
+};
+
+template <class _InIter, class _Sent, class _OutIter, class = void>
+struct __can_rewrap : false_type {};
+
+template <class _InIter, class _Sent, class _OutIter>
+struct __can_rewrap<_InIter,
+                    _Sent,
+                    _OutIter,
+                    // Note that sentinels are always copy-constructible.
+                    __enable_if_t< is_copy_constructible<_InIter>::value &&
+                                   is_copy_constructible<_OutIter>::value > > : true_type {};
+
+template <class _Algorithm,
+          class _InIter,
+          class _Sent,
+          class _OutIter,
+          __enable_if_t<__can_rewrap<_InIter, _Sent, _OutIter>::value, int> = 0>
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 pair<_InIter, _OutIter>
+__unwrap_and_dispatch(_InIter __first, _Sent __last, _OutIter __out_first) {
+  auto __range  = std::__unwrap_range(__first, std::move(__last));
+  auto __result = _Algorithm()(std::move(__range.first), std::move(__range.second), std::__unwrap_iter(__out_first));
+  return std::make_pair(std::__rewrap_range<_Sent>(std::move(__first), std::move(__result.first)),
+                                 std::__rewrap_iter(std::move(__out_first), std::move(__result.second)));
+}
+
+template <class _Algorithm,
+          class _InIter,
+          class _Sent,
+          class _OutIter,
+          __enable_if_t<!__can_rewrap<_InIter, _Sent, _OutIter>::value, int> = 0>
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 pair<_InIter, _OutIter>
+__unwrap_and_dispatch(_InIter __first, _Sent __last, _OutIter __out_first) {
+  return _Algorithm()(std::move(__first), std::move(__last), std::move(__out_first));
+}
+
+template <class _IterOps, class _InValue, class _OutIter, class = void>
+struct __can_copy_without_conversion : false_type {};
+
+template <class _IterOps, class _InValue, class _OutIter>
+struct __can_copy_without_conversion<
+    _IterOps,
+    _InValue,
+    _OutIter,
+    __enable_if_t<is_same<_InValue, typename _IterOps::template __value_type<_OutIter> >::value> > : true_type {};
+
+template <class _AlgPolicy,
+          class _NaiveAlgorithm,
+          class _OptimizedAlgorithm,
+          class _InIter,
+          class _Sent,
+          class _OutIter>
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 pair<_InIter, _OutIter>
+__dispatch_copy_or_move(_InIter __first, _Sent __last, _OutIter __out_first) {
+#ifdef _LIBCPP_COMPILER_GCC
+  // GCC doesn't support `__builtin_memmove` during constant evaluation.
+  if (__libcpp_is_constant_evaluated()) {
+    return std::__unwrap_and_dispatch<_NaiveAlgorithm>(std::move(__first), std::move(__last), std::move(__out_first));
+  }
+#else
+  // In Clang, `__builtin_memmove` only supports fully trivially copyable types (just having trivial copy assignment is
+  // insufficient). Also, conversions are not supported.
+  if (__libcpp_is_constant_evaluated()) {
+    using _InValue = typename _IterOps<_AlgPolicy>::template __value_type<_InIter>;
+    if (!is_trivially_copyable<_InValue>::value ||
+        !__can_copy_without_conversion<_IterOps<_AlgPolicy>, _InValue, _OutIter>::value) {
+      return std::__unwrap_and_dispatch<_NaiveAlgorithm>(std::move(__first), std::move(__last), std::move(__out_first));
+    }
+  }
+#endif // _LIBCPP_COMPILER_GCC
+
+  using _Algorithm = __overload<_NaiveAlgorithm, _OptimizedAlgorithm>;
+  return std::__unwrap_and_dispatch<_Algorithm>(std::move(__first), std::move(__last), std::move(__out_first));
+}
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP___ALGORITHM_COPY_MOVE_COMMON_H

include/__algorithm/copy_n.h

@@ -12,6 +12,7 @@
 #include <__algorithm/copy.h>
 #include <__config>
 #include <__iterator/iterator_traits.h>
+#include <__utility/convert_to_integral.h>
 #include <type_traits>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
@@ -21,7 +22,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template<class _InputIterator, class _Size, class _OutputIterator>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 typename enable_if
 <
     __is_cpp17_input_iterator<_InputIterator>::value &&
@@ -47,7 +48,7 @@ copy_n(_InputIterator __first, _Size __orig_n, _OutputIterator __result)
 }
 
 template<class _InputIterator, class _Size, class _OutputIterator>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 typename enable_if
 <
     __is_cpp17_random_access_iterator<_InputIterator>::value,

include/__algorithm/count.h

@@ -20,7 +20,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InputIterator, class _Tp>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
     typename iterator_traits<_InputIterator>::difference_type
     count(_InputIterator __first, _InputIterator __last, const _Tp& __value) {
   typename iterator_traits<_InputIterator>::difference_type __r(0);

include/__algorithm/count_if.h

@@ -20,7 +20,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InputIterator, class _Predicate>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
     typename iterator_traits<_InputIterator>::difference_type
     count_if(_InputIterator __first, _InputIterator __last, _Predicate __pred) {
   typename iterator_traits<_InputIterator>::difference_type __r(0);

include/__algorithm/equal.h

@@ -22,7 +22,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InputIterator1, class _InputIterator2, class _BinaryPredicate>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _BinaryPredicate __pred) {
   for (; __first1 != __last1; ++__first1, (void)++__first2)
     if (!__pred(*__first1, *__first2))
@@ -31,16 +31,14 @@ equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first
 }
 
 template <class _InputIterator1, class _InputIterator2>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2) {
-  typedef typename iterator_traits<_InputIterator1>::value_type __v1;
+  return std::equal(__first1, __last1, __first2, __equal_to());
-  typedef typename iterator_traits<_InputIterator2>::value_type __v2;
-  return _VSTD::equal(__first1, __last1, __first2, __equal_to<__v1, __v2>());
 }
 
 #if _LIBCPP_STD_VER > 11
 template <class _BinaryPredicate, class _InputIterator1, class _InputIterator2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 __equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2,
         _BinaryPredicate __pred, input_iterator_tag, input_iterator_tag) {
   for (; __first1 != __last1 && __first2 != __last2; ++__first1, (void)++__first2)
@@ -50,7 +48,7 @@ __equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __fir
 }
 
 template <class _BinaryPredicate, class _RandomAccessIterator1, class _RandomAccessIterator2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 __equal(_RandomAccessIterator1 __first1, _RandomAccessIterator1 __last1, _RandomAccessIterator2 __first2,
         _RandomAccessIterator2 __last2, _BinaryPredicate __pred, random_access_iterator_tag,
         random_access_iterator_tag) {
@@ -61,7 +59,7 @@ __equal(_RandomAccessIterator1 __first1, _RandomAccessIterator1 __last1, _Random
 }
 
 template <class _InputIterator1, class _InputIterator2, class _BinaryPredicate>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2,
       _BinaryPredicate __pred) {
   return _VSTD::__equal<_BinaryPredicate&>(
@@ -70,13 +68,16 @@ equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first
 }
 
 template <class _InputIterator1, class _InputIterator2>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2) {
-  typedef typename iterator_traits<_InputIterator1>::value_type __v1;
+  return std::__equal(
-  typedef typename iterator_traits<_InputIterator2>::value_type __v2;
+      __first1,
-  return _VSTD::__equal(__first1, __last1, __first2, __last2, __equal_to<__v1, __v2>(),
+      __last1,
-                        typename iterator_traits<_InputIterator1>::iterator_category(),
+      __first2,
-                        typename iterator_traits<_InputIterator2>::iterator_category());
+      __last2,
+      __equal_to(),
+      typename iterator_traits<_InputIterator1>::iterator_category(),
+      typename iterator_traits<_InputIterator2>::iterator_category());
 }
 #endif
 

include/__algorithm/equal_range.h

@@ -34,7 +34,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _AlgPolicy, class _Compare, class _Iter, class _Sent, class _Tp, class _Proj>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 pair<_Iter, _Iter>
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 pair<_Iter, _Iter>
 __equal_range(_Iter __first, _Sent __last, const _Tp& __value, _Compare&& __comp, _Proj&& __proj) {
   auto __len  = _IterOps<_AlgPolicy>::distance(__first, __last);
   _Iter __end = _IterOps<_AlgPolicy>::next(__first, __last);
@@ -58,19 +58,22 @@ __equal_range(_Iter __first, _Sent __last, const _Tp& __value, _Compare&& __comp
 }
 
 template <class _ForwardIterator, class _Tp, class _Compare>
-_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 pair<_ForwardIterator, _ForwardIterator>
+_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 pair<_ForwardIterator, _ForwardIterator>
 equal_range(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value, _Compare __comp) {
   static_assert(__is_callable<_Compare, decltype(*__first), const _Tp&>::value,
                 "The comparator has to be callable");
   static_assert(is_copy_constructible<_ForwardIterator>::value,
                 "Iterator has to be copy constructible");
-  typedef typename __comp_ref_type<_Compare>::type _Comp_ref;
   return std::__equal_range<_ClassicAlgPolicy>(
-      std::move(__first), std::move(__last), __value, static_cast<_Comp_ref>(__comp), std::__identity());
+      std::move(__first),
+      std::move(__last),
+      __value,
+      static_cast<__comp_ref_type<_Compare> >(__comp),
+      std::__identity());
 }
 
 template <class _ForwardIterator, class _Tp>
-_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 pair<_ForwardIterator, _ForwardIterator>
+_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 pair<_ForwardIterator, _ForwardIterator>
 equal_range(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value) {
   return std::equal_range(
       std::move(__first),

include/__algorithm/fill.h

@@ -23,7 +23,7 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 // fill isn't specialized for std::memset, because the compiler already optimizes the loop to a call to std::memset.
 
 template <class _ForwardIterator, class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 void
 __fill(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value, forward_iterator_tag)
 {
@@ -32,7 +32,7 @@ __fill(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value, fo
 }
 
 template <class _RandomAccessIterator, class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 void
 __fill(_RandomAccessIterator __first, _RandomAccessIterator __last, const _Tp& __value, random_access_iterator_tag)
 {
@@ -40,7 +40,7 @@ __fill(_RandomAccessIterator __first, _RandomAccessIterator __last, const _Tp& _
 }
 
 template <class _ForwardIterator, class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 void
 fill(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value)
 {

include/__algorithm/fill_n.h

@@ -11,6 +11,7 @@
 
 #include <__config>
 #include <__iterator/iterator_traits.h>
+#include <__utility/convert_to_integral.h>
 #include <type_traits>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
@@ -22,7 +23,7 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 // fill_n isn't specialized for std::memset, because the compiler already optimizes the loop to a call to std::memset.
 
 template <class _OutputIterator, class _Size, class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 _OutputIterator
 __fill_n(_OutputIterator __first, _Size __n, const _Tp& __value)
 {
@@ -32,7 +33,7 @@ __fill_n(_OutputIterator __first, _Size __n, const _Tp& __value)
 }
 
 template <class _OutputIterator, class _Size, class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 _OutputIterator
 fill_n(_OutputIterator __first, _Size __n, const _Tp& __value)
 {

include/__algorithm/find.h

@@ -19,7 +19,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InputIterator, class _Tp>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _InputIterator
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _InputIterator
 find(_InputIterator __first, _InputIterator __last, const _Tp& __value) {
   for (; __first != __last; ++__first)
     if (*__first == __value)

include/__algorithm/find_end.h

@@ -37,7 +37,7 @@ template <
     class _Pred,
     class _Proj1,
     class _Proj2>
-_LIBCPP_HIDE_FROM_ABI inline _LIBCPP_CONSTEXPR_AFTER_CXX11 pair<_Iter1, _Iter1> __find_end_impl(
+_LIBCPP_HIDE_FROM_ABI inline _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_Iter1, _Iter1> __find_end_impl(
     _Iter1 __first1,
     _Sent1 __last1,
     _Iter2 __first2,
@@ -91,7 +91,7 @@ template <
     class _Sent2,
     class _Proj1,
     class _Proj2>
-_LIBCPP_CONSTEXPR_AFTER_CXX17 _Iter1 __find_end(
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Iter1 __find_end(
     _Iter1 __first1,
     _Sent1 __sent1,
     _Iter2 __first2,
@@ -144,7 +144,7 @@ template <
     class _Sent2,
     class _Proj1,
     class _Proj2>
-_LIBCPP_CONSTEXPR_AFTER_CXX11 _Iter1 __find_end(
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 _Iter1 __find_end(
     _Iter1 __first1,
     _Sent1 __sent1,
     _Iter2 __first2,
@@ -189,7 +189,7 @@ _LIBCPP_CONSTEXPR_AFTER_CXX11 _Iter1 __find_end(
 }
 
 template <class _ForwardIterator1, class _ForwardIterator2, class _BinaryPredicate>
-_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
+_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
 _ForwardIterator1 __find_end_classic(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
                                      _ForwardIterator2 __first2, _ForwardIterator2 __last2,
                                      _BinaryPredicate& __pred) {
@@ -208,7 +208,7 @@ _ForwardIterator1 __find_end_classic(_ForwardIterator1 __first1, _ForwardIterato
 }
 
 template <class _ForwardIterator1, class _ForwardIterator2, class _BinaryPredicate>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
 _ForwardIterator1 find_end(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
                            _ForwardIterator2 __first2, _ForwardIterator2 __last2,
                            _BinaryPredicate __pred) {
@@ -216,12 +216,10 @@ _ForwardIterator1 find_end(_ForwardIterator1 __first1, _ForwardIterator1 __last1
 }
 
 template <class _ForwardIterator1, class _ForwardIterator2>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
 _ForwardIterator1 find_end(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
                            _ForwardIterator2 __first2, _ForwardIterator2 __last2) {
-  using __v1 = typename iterator_traits<_ForwardIterator1>::value_type;
+  return std::find_end(__first1, __last1, __first2, __last2, __equal_to());
-  using __v2 = typename iterator_traits<_ForwardIterator2>::value_type;
-  return std::find_end(__first1, __last1, __first2, __last2, __equal_to<__v1, __v2>());
 }
 
 _LIBCPP_END_NAMESPACE_STD

include/__algorithm/find_first_of.h

@@ -21,7 +21,8 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _ForwardIterator1, class _ForwardIterator2, class _BinaryPredicate>
-_LIBCPP_CONSTEXPR_AFTER_CXX11 _ForwardIterator1 __find_first_of_ce(_ForwardIterator1 __first1,
+_LIBCPP_HIDE_FROM_ABI
+_LIBCPP_CONSTEXPR_SINCE_CXX14 _ForwardIterator1 __find_first_of_ce(_ForwardIterator1 __first1,
                                                                    _ForwardIterator1 __last1,
                                                                    _ForwardIterator2 __first2,
                                                                    _ForwardIterator2 __last2,
@@ -34,18 +35,16 @@ _LIBCPP_CONSTEXPR_AFTER_CXX11 _ForwardIterator1 __find_first_of_ce(_ForwardItera
 }
 
 template <class _ForwardIterator1, class _ForwardIterator2, class _BinaryPredicate>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator1
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator1
 find_first_of(_ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2,
               _ForwardIterator2 __last2, _BinaryPredicate __pred) {
   return _VSTD::__find_first_of_ce(__first1, __last1, __first2, __last2, __pred);
 }
 
 template <class _ForwardIterator1, class _ForwardIterator2>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator1 find_first_of(
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator1 find_first_of(
     _ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2, _ForwardIterator2 __last2) {
-  typedef typename iterator_traits<_ForwardIterator1>::value_type __v1;
+  return std::__find_first_of_ce(__first1, __last1, __first2, __last2, __equal_to());
-  typedef typename iterator_traits<_ForwardIterator2>::value_type __v2;
-  return _VSTD::__find_first_of_ce(__first1, __last1, __first2, __last2, __equal_to<__v1, __v2>());
 }
 
 _LIBCPP_END_NAMESPACE_STD

include/__algorithm/find_if.h

@@ -19,7 +19,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InputIterator, class _Predicate>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _InputIterator
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _InputIterator
 find_if(_InputIterator __first, _InputIterator __last, _Predicate __pred) {
   for (; __first != __last; ++__first)
     if (__pred(*__first))

include/__algorithm/find_if_not.h

@@ -19,7 +19,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InputIterator, class _Predicate>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _InputIterator
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _InputIterator
 find_if_not(_InputIterator __first, _InputIterator __last, _Predicate __pred) {
   for (; __first != __last; ++__first)
     if (!__pred(*__first))

include/__algorithm/for_each.h

@@ -19,7 +19,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InputIterator, class _Function>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _Function for_each(_InputIterator __first,
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _Function for_each(_InputIterator __first,
                                                                                   _InputIterator __last,
                                                                                   _Function __f) {
   for (; __first != __last; ++__first)

include/__algorithm/for_each_n.h

@@ -11,6 +11,7 @@
 #define _LIBCPP___ALGORITHM_FOR_EACH_N_H
 
 #include <__config>
+#include <__utility/convert_to_integral.h>
 #include <type_traits>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
@@ -22,7 +23,7 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 #if _LIBCPP_STD_VER > 14
 
 template <class _InputIterator, class _Size, class _Function>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _InputIterator for_each_n(_InputIterator __first,
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _InputIterator for_each_n(_InputIterator __first,
                                                                                          _Size __orig_n,
                                                                                          _Function __f) {
   typedef decltype(_VSTD::__convert_to_integral(__orig_n)) _IntegralSize;

include/__algorithm/generate.h

@@ -18,7 +18,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _ForwardIterator, class _Generator>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 void
 generate(_ForwardIterator __first, _ForwardIterator __last, _Generator __gen)
 {

include/__algorithm/generate_n.h

@@ -10,6 +10,7 @@
 #define _LIBCPP___ALGORITHM_GENERATE_N_H
 
 #include <__config>
+#include <__utility/convert_to_integral.h>
 #include <type_traits>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
@@ -19,7 +20,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _OutputIterator, class _Size, class _Generator>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 _OutputIterator
 generate_n(_OutputIterator __first, _Size __orig_n, _Generator __gen)
 {

include/__algorithm/half_positive.h

@@ -29,7 +29,7 @@ typename enable_if
 >::type
 __half_positive(_Integral __value)
 {
-    return static_cast<_Integral>(static_cast<typename make_unsigned<_Integral>::type>(__value) / 2);
+    return static_cast<_Integral>(static_cast<__make_unsigned_t<_Integral> >(__value) / 2);
 }
 
 template <typename _Tp>

include/__algorithm/in_found_result.h

@@ -18,7 +18,7 @@
 #  pragma GCC system_header
 #endif
 
-#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#if _LIBCPP_STD_VER > 17
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
@@ -44,6 +44,6 @@ struct in_found_result {
 
 _LIBCPP_END_NAMESPACE_STD
 
-#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#endif // _LIBCPP_STD_VER > 17
 
 #endif // _LIBCPP___ALGORITHM_IN_FOUND_RESULT_H

include/__algorithm/in_fun_result.h

@@ -20,7 +20,7 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#if _LIBCPP_STD_VER > 17
 
 namespace ranges {
 template <class _InIter1, class _Func1>
@@ -42,7 +42,7 @@ struct in_fun_result {
 };
 } // namespace ranges
 
-#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#endif // _LIBCPP_STD_VER > 17
 
 _LIBCPP_END_NAMESPACE_STD
 

include/__algorithm/in_in_out_result.h

@@ -20,7 +20,7 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#if _LIBCPP_STD_VER > 17
 
 namespace ranges {
 
@@ -49,7 +49,7 @@ struct in_in_out_result {
 
 } // namespace ranges
 
-#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#endif // _LIBCPP_STD_VER > 17
 
 _LIBCPP_END_NAMESPACE_STD
 

include/__algorithm/in_in_result.h

@@ -20,7 +20,7 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#if _LIBCPP_STD_VER > 17
 
 namespace ranges {
 
@@ -46,7 +46,7 @@ struct in_in_result {
 
 } // namespace ranges
 
-#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#endif // _LIBCPP_STD_VER > 17
 
 _LIBCPP_END_NAMESPACE_STD
 

include/__algorithm/in_out_out_result.h

@@ -20,7 +20,7 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#if _LIBCPP_STD_VER > 17
 
 namespace ranges {
 template <class _InIter1, class _OutIter1, class _OutIter2>
@@ -47,7 +47,7 @@ struct in_out_out_result {
 };
 } // namespace ranges
 
-#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#endif // _LIBCPP_STD_VER > 17
 
 _LIBCPP_END_NAMESPACE_STD
 

include/__algorithm/in_out_result.h

@@ -20,7 +20,7 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#if _LIBCPP_STD_VER > 17
 
 namespace ranges {
 
@@ -46,7 +46,7 @@ struct in_out_result {
 
 } // namespace ranges
 
-#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#endif // _LIBCPP_STD_VER > 17
 
 _LIBCPP_END_NAMESPACE_STD
 

include/__algorithm/includes.h

@@ -25,7 +25,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _Iter1, class _Sent1, class _Iter2, class _Sent2, class _Comp, class _Proj1, class _Proj2>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 __includes(_Iter1 __first1, _Sent1 __last1, _Iter2 __first2, _Sent2 __last2,
            _Comp&& __comp, _Proj1&& __proj1, _Proj2&& __proj2) {
   for (; __first2 != __last2; ++__first1) {
@@ -39,7 +39,7 @@ __includes(_Iter1 __first1, _Sent1 __last1, _Iter2 __first2, _Sent2 __last2,
 }
 
 template <class _InputIterator1, class _InputIterator2, class _Compare>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool includes(
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool includes(
     _InputIterator1 __first1,
     _InputIterator1 __last1,
     _InputIterator2 __first2,
@@ -48,14 +48,18 @@ _LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17
   static_assert(__is_callable<_Compare, decltype(*__first1), decltype(*__first2)>::value,
       "Comparator has to be callable");
 
-  typedef typename __comp_ref_type<_Compare>::type _Comp_ref;
   return std::__includes(
-      std::move(__first1), std::move(__last1), std::move(__first2), std::move(__last2),
+      std::move(__first1),
-      static_cast<_Comp_ref>(__comp), __identity(), __identity());
+      std::move(__last1),
+      std::move(__first2),
+      std::move(__last2),
+      static_cast<__comp_ref_type<_Compare> >(__comp),
+      __identity(),
+      __identity());
 }
 
 template <class _InputIterator1, class _InputIterator2>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 includes(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2) {
   return std::includes(
       std::move(__first1),

include/__algorithm/inplace_merge.h

@@ -23,7 +23,11 @@
 #include <__iterator/distance.h>
 #include <__iterator/iterator_traits.h>
 #include <__iterator/reverse_iterator.h>
-#include <memory>
+#include <__memory/destruct_n.h>
+#include <__memory/temporary_buffer.h>
+#include <__memory/unique_ptr.h>
+#include <__utility/pair.h>
+#include <new>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
@@ -56,6 +60,7 @@ public:
 
 template <class _AlgPolicy, class _Compare, class _InputIterator1, class _Sent1,
           class _InputIterator2, class _Sent2, class _OutputIterator>
+_LIBCPP_HIDE_FROM_ABI
 void __half_inplace_merge(_InputIterator1 __first1, _Sent1 __last1,
                           _InputIterator2 __first2, _Sent2 __last2,
                           _OutputIterator __result, _Compare&& __comp)
@@ -83,6 +88,7 @@ void __half_inplace_merge(_InputIterator1 __first1, _Sent1 __last1,
 }
 
 template <class _AlgPolicy, class _Compare, class _BidirectionalIterator>
+_LIBCPP_HIDE_FROM_ABI
 void __buffered_inplace_merge(
     _BidirectionalIterator __first,
     _BidirectionalIterator __middle,
@@ -231,9 +237,8 @@ _LIBCPP_SUPPRESS_DEPRECATED_POP
 template <class _BidirectionalIterator, class _Compare>
 inline _LIBCPP_HIDE_FROM_ABI void inplace_merge(
     _BidirectionalIterator __first, _BidirectionalIterator __middle, _BidirectionalIterator __last, _Compare __comp) {
-  typedef typename __comp_ref_type<_Compare>::type _Comp_ref;
   std::__inplace_merge<_ClassicAlgPolicy>(
-      std::move(__first), std::move(__middle), std::move(__last), static_cast<_Comp_ref>(__comp));
+      std::move(__first), std::move(__middle), std::move(__last), static_cast<__comp_ref_type<_Compare> >(__comp));
 }
 
 template <class _BidirectionalIterator>

include/__algorithm/is_heap.h

@@ -23,17 +23,16 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _RandomAccessIterator, class _Compare>
 _LIBCPP_NODISCARD_EXT inline
-_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 bool
 is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp)
 {
-    typedef typename __comp_ref_type<_Compare>::type _Comp_ref;
+    return std::__is_heap_until(__first, __last, static_cast<__comp_ref_type<_Compare> >(__comp)) == __last;
-    return std::__is_heap_until(__first, __last, static_cast<_Comp_ref>(__comp)) == __last;
 }
 
 template<class _RandomAccessIterator>
 _LIBCPP_NODISCARD_EXT inline
-_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 bool
 is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last)
 {

include/__algorithm/is_heap_until.h

@@ -21,7 +21,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _Compare, class _RandomAccessIterator>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 _RandomAccessIterator
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _RandomAccessIterator
 __is_heap_until(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare&& __comp)
 {
     typedef typename iterator_traits<_RandomAccessIterator>::difference_type difference_type;
@@ -48,15 +48,14 @@ __is_heap_until(_RandomAccessIterator __first, _RandomAccessIterator __last, _Co
 }
 
 template <class _RandomAccessIterator, class _Compare>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 _RandomAccessIterator
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _RandomAccessIterator
 is_heap_until(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp)
 {
-    typedef typename __comp_ref_type<_Compare>::type _Comp_ref;
+    return std::__is_heap_until(__first, __last, static_cast<__comp_ref_type<_Compare> >(__comp));
-    return std::__is_heap_until(__first, __last, static_cast<_Comp_ref>(__comp));
 }
 
 template<class _RandomAccessIterator>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 _RandomAccessIterator
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _RandomAccessIterator
 is_heap_until(_RandomAccessIterator __first, _RandomAccessIterator __last)
 {
     return _VSTD::__is_heap_until(__first, __last, __less<typename iterator_traits<_RandomAccessIterator>::value_type>());

include/__algorithm/is_partitioned.h

@@ -18,7 +18,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InputIterator, class _Predicate>
-_LIBCPP_NODISCARD_EXT _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 is_partitioned(_InputIterator __first, _InputIterator __last, _Predicate __pred)
 {
     for (; __first != __last; ++__first)

include/__algorithm/is_permutation.h

@@ -55,7 +55,7 @@ struct _ConstTimeDistance<_Iter1, _Iter1, _Iter2, _Iter2, __enable_if_t<
 template <class _AlgPolicy,
           class _Iter1, class _Sent1, class _Iter2, class _Sent2,
           class _Proj1, class _Proj2, class _Pred>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 __is_permutation_impl(_Iter1 __first1, _Sent1 __last1, _Iter2 __first2, _Sent2 __last2,
                       _Pred&& __pred, _Proj1&& __proj1, _Proj2&& __proj2) {
   using _D1 = __iter_diff_t<_Iter1>;
@@ -94,7 +94,7 @@ __is_permutation_impl(_Iter1 __first1, _Sent1 __last1, _Iter2 __first2, _Sent2 _
 
 // 2+1 iterators, predicate. Not used by range algorithms.
 template <class _AlgPolicy, class _ForwardIterator1, class _Sentinel1, class _ForwardIterator2, class _BinaryPredicate>
-_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 __is_permutation(_ForwardIterator1 __first1, _Sentinel1 __last1, _ForwardIterator2 __first2,
                  _BinaryPredicate&& __pred) {
   // Shorten sequences as much as possible by lopping of any equal prefix.
@@ -122,7 +122,7 @@ __is_permutation(_ForwardIterator1 __first1, _Sentinel1 __last1, _ForwardIterato
 template <class _AlgPolicy,
           class _Iter1, class _Sent1, class _Iter2, class _Sent2,
           class _Proj1, class _Proj2, class _Pred>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 __is_permutation(_Iter1 __first1, _Sent1 __last1, _Iter2 __first2, _Sent2 __last2,
                  _Pred&& __pred, _Proj1&& __proj1, _Proj2&& __proj2,
                  /*_ConstTimeDistance=*/false_type) {
@@ -156,7 +156,7 @@ __is_permutation(_Iter1 __first1, _Sent1 __last1, _Iter2 __first2, _Sent2 __last
 template <class _AlgPolicy,
           class _Iter1, class _Sent1, class _Iter2, class _Sent2,
           class _Proj1, class _Proj2, class _Pred>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 __is_permutation(_Iter1 __first1, _Sent1 __last1, _Iter2 __first2, _Sent2 __last2,
                  _Pred&& __pred, _Proj1&& __proj1, _Proj2&& __proj2,
                  /*_ConstTimeDistance=*/true_type) {
@@ -172,7 +172,7 @@ __is_permutation(_Iter1 __first1, _Sent1 __last1, _Iter2 __first2, _Sent2 __last
 template <class _AlgPolicy,
           class _Iter1, class _Sent1, class _Iter2, class _Sent2,
           class _Proj1, class _Proj2, class _Pred>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 __is_permutation(_Iter1 __first1, _Sent1 __last1, _Iter2 __first2, _Sent2 __last2,
                  _Pred&& __pred, _Proj1&& __proj1, _Proj2&& __proj2) {
   return std::__is_permutation<_AlgPolicy>(
@@ -185,7 +185,7 @@ __is_permutation(_Iter1 __first1, _Sent1 __last1, _Iter2 __first2, _Sent2 __last
 
 // 2+1 iterators, predicate
 template <class _ForwardIterator1, class _ForwardIterator2, class _BinaryPredicate>
-_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2,
                _BinaryPredicate __pred) {
   static_assert(__is_callable<_BinaryPredicate, decltype(*__first1), decltype(*__first2)>::value,
@@ -197,31 +197,30 @@ is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIt
 
 // 2+1 iterators
 template <class _ForwardIterator1, class _ForwardIterator2>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2) {
-  using __v1 = __iter_value_type<_ForwardIterator1>;
+  return std::is_permutation(__first1, __last1, __first2, __equal_to());
-  using __v2 = __iter_value_type<_ForwardIterator2>;
-  return std::is_permutation(__first1, __last1, __first2, __equal_to<__v1, __v2>());
 }
 
 #if _LIBCPP_STD_VER > 11
 
 // 2+2 iterators
 template <class _ForwardIterator1, class _ForwardIterator2>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool is_permutation(
-is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2,
+    _ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2, _ForwardIterator2 __last2) {
-               _ForwardIterator2 __last2) {
-  using __v1 = __iter_value_type<_ForwardIterator1>;
-  using __v2 = __iter_value_type<_ForwardIterator2>;
-
   return std::__is_permutation<_ClassicAlgPolicy>(
-      std::move(__first1), std::move(__last1), std::move(__first2), std::move(__last2),
+      std::move(__first1),
-      __equal_to<__v1, __v2>(), __identity(), __identity());
+      std::move(__last1),
+      std::move(__first2),
+      std::move(__last2),
+      __equal_to(),
+      __identity(),
+      __identity());
 }
 
 // 2+2 iterators, predicate
 template <class _ForwardIterator1, class _ForwardIterator2, class _BinaryPredicate>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2,
                _ForwardIterator2 __last2, _BinaryPredicate __pred) {
   static_assert(__is_callable<_BinaryPredicate, decltype(*__first1), decltype(*__first2)>::value,

include/__algorithm/is_sorted.h

@@ -23,17 +23,16 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _ForwardIterator, class _Compare>
 _LIBCPP_NODISCARD_EXT inline
-_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 bool
 is_sorted(_ForwardIterator __first, _ForwardIterator __last, _Compare __comp)
 {
-    typedef typename __comp_ref_type<_Compare>::type _Comp_ref;
+    return _VSTD::__is_sorted_until<__comp_ref_type<_Compare> >(__first, __last, __comp) == __last;
-    return _VSTD::__is_sorted_until<_Comp_ref>(__first, __last, __comp) == __last;
 }
 
 template<class _ForwardIterator>
 _LIBCPP_NODISCARD_EXT inline
-_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 bool
 is_sorted(_ForwardIterator __first, _ForwardIterator __last)
 {

include/__algorithm/is_sorted_until.h

@@ -21,7 +21,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _Compare, class _ForwardIterator>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
 __is_sorted_until(_ForwardIterator __first, _ForwardIterator __last, _Compare __comp)
 {
     if (__first != __last)
@@ -38,15 +38,14 @@ __is_sorted_until(_ForwardIterator __first, _ForwardIterator __last, _Compare __
 }
 
 template <class _ForwardIterator, class _Compare>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
 is_sorted_until(_ForwardIterator __first, _ForwardIterator __last, _Compare __comp)
 {
-    typedef typename __comp_ref_type<_Compare>::type _Comp_ref;
+    return _VSTD::__is_sorted_until<__comp_ref_type<_Compare> >(__first, __last, __comp);
-    return _VSTD::__is_sorted_until<_Comp_ref>(__first, __last, __comp);
 }
 
 template<class _ForwardIterator>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
 is_sorted_until(_ForwardIterator __first, _ForwardIterator __last)
 {
     return _VSTD::is_sorted_until(__first, __last, __less<typename iterator_traits<_ForwardIterator>::value_type>());

include/__algorithm/iter_swap.h

@@ -20,10 +20,10 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _ForwardIterator1, class _ForwardIterator2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 void iter_swap(_ForwardIterator1 __a,
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 void iter_swap(_ForwardIterator1 __a,
                                                                               _ForwardIterator2 __b)
     //                                  _NOEXCEPT_(_NOEXCEPT_(swap(*__a, *__b)))
-    _NOEXCEPT_(_NOEXCEPT_(swap(*declval<_ForwardIterator1>(), *declval<_ForwardIterator2>()))) {
+    _NOEXCEPT_(_NOEXCEPT_(swap(*std::declval<_ForwardIterator1>(), *std::declval<_ForwardIterator2>()))) {
   swap(*__a, *__b);
 }
 

include/__algorithm/iterator_operations.h

@@ -21,10 +21,13 @@
 #include <__iterator/next.h>
 #include <__iterator/prev.h>
 #include <__iterator/readable_traits.h>
+#include <__type_traits/enable_if.h>
+#include <__type_traits/is_reference.h>
+#include <__type_traits/is_same.h>
+#include <__type_traits/remove_cvref.h>
 #include <__utility/declval.h>
 #include <__utility/forward.h>
 #include <__utility/move.h>
-#include <type_traits>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
@@ -34,7 +37,7 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _AlgPolicy> struct _IterOps;
 
-#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#if _LIBCPP_STD_VER > 17
 struct _RangeAlgPolicy {};
 
 template <>
@@ -76,14 +79,14 @@ struct _IterOps<_ClassicAlgPolicy> {
 
   // advance
   template <class _Iter, class _Distance>
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
   static void advance(_Iter& __iter, _Distance __count) {
     std::advance(__iter, __count);
   }
 
   // distance
   template <class _Iter>
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
   static typename iterator_traits<_Iter>::difference_type distance(_Iter __first, _Iter __last) {
     return std::distance(__first, __last);
   }
@@ -95,9 +98,9 @@ struct _IterOps<_ClassicAlgPolicy> {
   using __move_t = decltype(std::move(*std::declval<_Iter&>()));
 
   template <class _Iter>
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
   static void __validate_iter_reference() {
-    static_assert(is_same<__deref_t<_Iter>, typename iterator_traits<__uncvref_t<_Iter> >::reference>::value,
+    static_assert(is_same<__deref_t<_Iter>, typename iterator_traits<__remove_cvref_t<_Iter> >::reference>::value,
         "It looks like your iterator's `iterator_traits<It>::reference` does not match the return type of "
         "dereferencing the iterator, i.e., calling `*it`. This is undefined behavior according to [input.iterators] "
         "and can lead to dangling reference issues at runtime, so we are flagging this.");
@@ -105,7 +108,7 @@ struct _IterOps<_ClassicAlgPolicy> {
 
   // iter_move
   template <class _Iter>
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 static
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 static
   // If the result of dereferencing `_Iter` is a reference type, deduce the result of calling `std::move` on it. Note
   // that the C++03 mode doesn't support `decltype(auto)` as the return type.
   __enable_if_t<
@@ -118,7 +121,7 @@ struct _IterOps<_ClassicAlgPolicy> {
   }
 
   template <class _Iter>
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 static
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 static
   // If the result of dereferencing `_Iter` is a value type, deduce the return value of this function to also be a
   // value -- otherwise, after `operator*` returns a temporary, this function would return a dangling reference to that
   // temporary. Note that the C++03 mode doesn't support `auto` as the return type.
@@ -133,35 +136,35 @@ struct _IterOps<_ClassicAlgPolicy> {
 
   // iter_swap
   template <class _Iter1, class _Iter2>
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
   static void iter_swap(_Iter1&& __a, _Iter2&& __b) {
     std::iter_swap(std::forward<_Iter1>(__a), std::forward<_Iter2>(__b));
   }
 
   // next
   template <class _Iterator>
-  _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_AFTER_CXX11
+  _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_SINCE_CXX14
   _Iterator next(_Iterator, _Iterator __last) {
     return __last;
   }
 
   template <class _Iter>
-  _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_AFTER_CXX11
+  _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_SINCE_CXX14
-  __uncvref_t<_Iter> next(_Iter&& __it,
+  __remove_cvref_t<_Iter> next(_Iter&& __it,
-                          typename iterator_traits<__uncvref_t<_Iter> >::difference_type __n = 1) {
+                          typename iterator_traits<__remove_cvref_t<_Iter> >::difference_type __n = 1) {
     return std::next(std::forward<_Iter>(__it), __n);
   }
 
   // prev
   template <class _Iter>
-  _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_AFTER_CXX11
+  _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_SINCE_CXX14
-  __uncvref_t<_Iter> prev(_Iter&& __iter,
+  __remove_cvref_t<_Iter> prev(_Iter&& __iter,
-                 typename iterator_traits<__uncvref_t<_Iter> >::difference_type __n = 1) {
+                 typename iterator_traits<__remove_cvref_t<_Iter> >::difference_type __n = 1) {
     return std::prev(std::forward<_Iter>(__iter), __n);
   }
 
   template <class _Iter>
-  _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_AFTER_CXX11
+  _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_SINCE_CXX14
   void __advance_to(_Iter& __first, _Iter __last) {
     __first = __last;
   }

include/__algorithm/lexicographical_compare.h

@@ -21,7 +21,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _Compare, class _InputIterator1, class _InputIterator2>
-_LIBCPP_CONSTEXPR_AFTER_CXX17 bool
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 __lexicographical_compare(_InputIterator1 __first1, _InputIterator1 __last1,
                           _InputIterator2 __first2, _InputIterator2 __last2, _Compare __comp)
 {
@@ -37,18 +37,17 @@ __lexicographical_compare(_InputIterator1 __first1, _InputIterator1 __last1,
 
 template <class _InputIterator1, class _InputIterator2, class _Compare>
 _LIBCPP_NODISCARD_EXT inline
-_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 bool
 lexicographical_compare(_InputIterator1 __first1, _InputIterator1 __last1,
                         _InputIterator2 __first2, _InputIterator2 __last2, _Compare __comp)
 {
-    typedef typename __comp_ref_type<_Compare>::type _Comp_ref;
+    return _VSTD::__lexicographical_compare<__comp_ref_type<_Compare> >(__first1, __last1, __first2, __last2, __comp);
-    return _VSTD::__lexicographical_compare<_Comp_ref>(__first1, __last1, __first2, __last2, __comp);
 }
 
 template <class _InputIterator1, class _InputIterator2>
 _LIBCPP_NODISCARD_EXT inline
-_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
 bool
 lexicographical_compare(_InputIterator1 __first1, _InputIterator1 __last1,
                         _InputIterator2 __first2, _InputIterator2 __last2)

include/__algorithm/lower_bound.h

@@ -29,7 +29,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _AlgPolicy, class _Iter, class _Sent, class _Type, class _Proj, class _Comp>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
 _Iter __lower_bound_impl(_Iter __first, _Sent __last, const _Type& __value, _Comp& __comp, _Proj& __proj) {
   auto __len = _IterOps<_AlgPolicy>::distance(__first, __last);
 
@@ -48,7 +48,7 @@ _Iter __lower_bound_impl(_Iter __first, _Sent __last, const _Type& __value, _Com
 }
 
 template <class _ForwardIterator, class _Tp, class _Compare>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
 _ForwardIterator lower_bound(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value, _Compare __comp) {
   static_assert(__is_callable<_Compare, decltype(*__first), const _Tp&>::value,
                 "The comparator has to be callable");
@@ -57,7 +57,7 @@ _ForwardIterator lower_bound(_ForwardIterator __first, _ForwardIterator __last,
 }
 
 template <class _ForwardIterator, class _Tp>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
 _ForwardIterator lower_bound(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value) {
   return std::lower_bound(__first, __last, __value,
                           __less<typename iterator_traits<_ForwardIterator>::value_type, _Tp>());

include/__algorithm/make_heap.h

@@ -24,10 +24,9 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _AlgPolicy, class _Compare, class _RandomAccessIterator>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
 void __make_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare&& __comp) {
-  using _CompRef = typename __comp_ref_type<_Compare>::type;
+  __comp_ref_type<_Compare> __comp_ref = __comp;
-  _CompRef __comp_ref = __comp;
 
   using difference_type = typename iterator_traits<_RandomAccessIterator>::difference_type;
   difference_type __n = __last - __first;
@@ -40,13 +39,13 @@ void __make_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _C
 }
 
 template <class _RandomAccessIterator, class _Compare>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
 void make_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp) {
   std::__make_heap<_ClassicAlgPolicy>(std::move(__first), std::move(__last), __comp);
 }
 
 template <class _RandomAccessIterator>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
 void make_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) {
   std::make_heap(std::move(__first), std::move(__last),
       __less<typename iterator_traits<_RandomAccessIterator>::value_type>());

include/__algorithm/make_projected.h

@@ -93,7 +93,7 @@ __make_projected(_Pred& __pred, _Proj&) {
 
 _LIBCPP_END_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#if _LIBCPP_STD_VER > 17
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
@@ -121,6 +121,6 @@ decltype(auto) __make_projected_comp(_Comp& __comp, _Proj1& __proj1, _Proj2& __p
 
 _LIBCPP_END_NAMESPACE_STD
 
-#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+#endif // _LIBCPP_STD_VER > 17
 
 #endif // _LIBCPP___ALGORITHM_MAKE_PROJECTED_H