llvm-capstone/libcxx/docs/FeatureTestMacroTable.rst
Eric Fiselier 2fc5a786be Add std::is_constant_evaluated.
Clang recently added __builtin_is_constant_evaluated() and GCC 9.0
has it as well.

This patch adds support for it in libc++.

llvm-svn: 359119
2019-04-24 17:54:25 +00:00

201 lines
13 KiB
ReStructuredText

.. _FeatureTestMacroTable:
==========================
Feature Test Macro Support
==========================
.. contents::
:local:
Overview
========
This file documents the feature test macros currently supported by libc++.
.. _feature-status:
Status
======
.. table:: Current Status
:name: feature-status-table
:widths: auto
================================================= =================
Macro Name Value
================================================= =================
**C++ 14**
-------------------------------------------------------------------
``__cpp_lib_chrono_udls`` ``201304L``
------------------------------------------------- -----------------
``__cpp_lib_complex_udls`` ``201309L``
------------------------------------------------- -----------------
``__cpp_lib_exchange_function`` ``201304L``
------------------------------------------------- -----------------
``__cpp_lib_generic_associative_lookup`` ``201304L``
------------------------------------------------- -----------------
``__cpp_lib_integer_sequence`` ``201304L``
------------------------------------------------- -----------------
``__cpp_lib_integral_constant_callable`` ``201304L``
------------------------------------------------- -----------------
``__cpp_lib_is_final`` ``201402L``
------------------------------------------------- -----------------
``__cpp_lib_is_null_pointer`` ``201309L``
------------------------------------------------- -----------------
``__cpp_lib_make_reverse_iterator`` ``201402L``
------------------------------------------------- -----------------
``__cpp_lib_make_unique`` ``201304L``
------------------------------------------------- -----------------
``__cpp_lib_null_iterators`` ``201304L``
------------------------------------------------- -----------------
``__cpp_lib_quoted_string_io`` ``201304L``
------------------------------------------------- -----------------
``__cpp_lib_result_of_sfinae`` ``201210L``
------------------------------------------------- -----------------
``__cpp_lib_robust_nonmodifying_seq_ops`` ``201304L``
------------------------------------------------- -----------------
``__cpp_lib_shared_timed_mutex`` ``201402L``
------------------------------------------------- -----------------
``__cpp_lib_string_udls`` ``201304L``
------------------------------------------------- -----------------
``__cpp_lib_transformation_trait_aliases`` ``201304L``
------------------------------------------------- -----------------
``__cpp_lib_transparent_operators`` ``201210L``
------------------------------------------------- -----------------
``__cpp_lib_tuple_element_t`` ``201402L``
------------------------------------------------- -----------------
``__cpp_lib_tuples_by_type`` ``201304L``
------------------------------------------------- -----------------
**C++ 17**
-------------------------------------------------------------------
``__cpp_lib_addressof_constexpr`` ``201603L``
------------------------------------------------- -----------------
``__cpp_lib_allocator_traits_is_always_equal`` ``201411L``
------------------------------------------------- -----------------
``__cpp_lib_any`` ``201606L``
------------------------------------------------- -----------------
``__cpp_lib_apply`` ``201603L``
------------------------------------------------- -----------------
``__cpp_lib_array_constexpr`` ``201603L``
------------------------------------------------- -----------------
``__cpp_lib_as_const`` ``201510L``
------------------------------------------------- -----------------
``__cpp_lib_atomic_is_always_lock_free`` ``201603L``
------------------------------------------------- -----------------
``__cpp_lib_bool_constant`` ``201505L``
------------------------------------------------- -----------------
``__cpp_lib_boyer_moore_searcher`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_byte`` ``201603L``
------------------------------------------------- -----------------
``__cpp_lib_chrono`` ``201611L``
------------------------------------------------- -----------------
``__cpp_lib_clamp`` ``201603L``
------------------------------------------------- -----------------
``__cpp_lib_enable_shared_from_this`` ``201603L``
------------------------------------------------- -----------------
``__cpp_lib_execution`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_filesystem`` ``201703L``
------------------------------------------------- -----------------
``__cpp_lib_gcd_lcm`` ``201606L``
------------------------------------------------- -----------------
``__cpp_lib_hardware_interference_size`` ``201703L``
------------------------------------------------- -----------------
``__cpp_lib_has_unique_object_representations`` ``201606L``
------------------------------------------------- -----------------
``__cpp_lib_hypot`` ``201603L``
------------------------------------------------- -----------------
``__cpp_lib_incomplete_container_elements`` ``201505L``
------------------------------------------------- -----------------
``__cpp_lib_invoke`` ``201411L``
------------------------------------------------- -----------------
``__cpp_lib_is_aggregate`` ``201703L``
------------------------------------------------- -----------------
``__cpp_lib_is_invocable`` ``201703L``
------------------------------------------------- -----------------
``__cpp_lib_is_swappable`` ``201603L``
------------------------------------------------- -----------------
``__cpp_lib_launder`` ``201606L``
------------------------------------------------- -----------------
``__cpp_lib_logical_traits`` ``201510L``
------------------------------------------------- -----------------
``__cpp_lib_make_from_tuple`` ``201606L``
------------------------------------------------- -----------------
``__cpp_lib_map_try_emplace`` ``201411L``
------------------------------------------------- -----------------
``__cpp_lib_math_special_functions`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_memory_resource`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_node_extract`` ``201606L``
------------------------------------------------- -----------------
``__cpp_lib_nonmember_container_access`` ``201411L``
------------------------------------------------- -----------------
``__cpp_lib_not_fn`` ``201603L``
------------------------------------------------- -----------------
``__cpp_lib_optional`` ``201606L``
------------------------------------------------- -----------------
``__cpp_lib_parallel_algorithm`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_raw_memory_algorithms`` ``201606L``
------------------------------------------------- -----------------
``__cpp_lib_sample`` ``201603L``
------------------------------------------------- -----------------
``__cpp_lib_scoped_lock`` ``201703L``
------------------------------------------------- -----------------
``__cpp_lib_shared_mutex`` ``201505L``
------------------------------------------------- -----------------
``__cpp_lib_shared_ptr_arrays`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_shared_ptr_weak_type`` ``201606L``
------------------------------------------------- -----------------
``__cpp_lib_string_view`` ``201606L``
------------------------------------------------- -----------------
``__cpp_lib_to_chars`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_transparent_operators`` ``201510L``
------------------------------------------------- -----------------
``__cpp_lib_type_trait_variable_templates`` ``201510L``
------------------------------------------------- -----------------
``__cpp_lib_uncaught_exceptions`` ``201411L``
------------------------------------------------- -----------------
``__cpp_lib_unordered_map_try_emplace`` ``201411L``
------------------------------------------------- -----------------
``__cpp_lib_variant`` ``201606L``
------------------------------------------------- -----------------
``__cpp_lib_void_t`` ``201411L``
------------------------------------------------- -----------------
**C++ 2a**
-------------------------------------------------------------------
``__cpp_lib_atomic_ref`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_bind_front`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_bit_cast`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_char8_t`` ``201811L``
------------------------------------------------- -----------------
``__cpp_lib_concepts`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_constexpr_misc`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_constexpr_swap_algorithms`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_destroying_delete`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_erase_if`` ``201811L``
------------------------------------------------- -----------------
``__cpp_lib_generic_unordered_lookup`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_is_constant_evaluated`` ``201811L``
------------------------------------------------- -----------------
``__cpp_lib_list_remove_return_type`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_ranges`` *unimplemented*
------------------------------------------------- -----------------
``__cpp_lib_three_way_comparison`` *unimplemented*
================================================= =================