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[libcxx][modularisation] splits <utility> into self-contained headers

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* moves `std::hash` and `std::unary_function` into `__functional`
* Everything else goes into `__utility/${NAME}.h`

Differential Revision: https://reviews.llvm.org/D104002
This commit is contained in:
Christopher Di Bella 2021-06-09 23:10:17 +00:00
parent a103402288
commit 69d5a66621
30 changed files with 2041 additions and 1675 deletions
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11
libcxx/include/CMakeLists.txt
View File

@ -107,6 +107,9 @@ set(files
__functional_03
__functional_base
__functional_base_03
__functional/hash.h
__functional/unary_function.h
__functional/unwrap_ref.h
__hash_table
__iterator/advance.h
__iterator/concepts.h
@ -160,9 +163,17 @@ set(files
__tuple
__undef_macros
__utility/__decay_copy.h
__utility/as_const.h
__utility/cmp.h
__utility/declval.h
__utility/exchange.h
__utility/forward.h
__utility/in_place.h
__utility/integer_sequence.h
__utility/move.h
__utility/pair.h
__utility/piecewise_construct.h
__utility/rel_ops.h
__utility/swap.h
__utility/to_underlying.h
algorithm

872
libcxx/include/__functional/hash.h Normal file
View File

@ -0,0 +1,872 @@
//===----------------------------------------------------------------------===//
//
// 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___FUNCTIONAL_HASH_H
#define _LIBCPP___FUNCTIONAL_HASH_H
#include <__config>
#include <__functional/unary_function.h>
#include <__tuple>
#include <__utility/forward.h>
#include <__utility/move.h>
#include <__utility/swap.h>
#include <cstdint>
#include <cstring>
#include <cstddef>
#include <limits>
#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 _Size>
inline _LIBCPP_INLINE_VISIBILITY
_Size
__loadword(const void* __p)
{
_Size __r;
_VSTD::memcpy(&__r, __p, sizeof(__r));
return __r;
}
// We use murmur2 when size_t is 32 bits, and cityhash64 when size_t
// is 64 bits. This is because cityhash64 uses 64bit x 64bit
// multiplication, which can be very slow on 32-bit systems.
template <class _Size, size_t = sizeof(_Size)*__CHAR_BIT__>
struct __murmur2_or_cityhash;
template <class _Size>
struct __murmur2_or_cityhash<_Size, 32>
{
inline _Size operator()(const void* __key, _Size __len)
_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK;
};
// murmur2
template <class _Size>
_Size
__murmur2_or_cityhash<_Size, 32>::operator()(const void* __key, _Size __len)
{
const _Size __m = 0x5bd1e995;
const _Size __r = 24;
_Size __h = __len;
const unsigned char* __data = static_cast<const unsigned char*>(__key);
for (; __len >= 4; __data += 4, __len -= 4)
{
_Size __k = __loadword<_Size>(__data);
__k *= __m;
__k ^= __k >> __r;
__k *= __m;
__h *= __m;
__h ^= __k;
}
switch (__len)
{
case 3:
__h ^= __data[2] << 16;
_LIBCPP_FALLTHROUGH();
case 2:
__h ^= __data[1] << 8;
_LIBCPP_FALLTHROUGH();
case 1:
__h ^= __data[0];
__h *= __m;
}
__h ^= __h >> 13;
__h *= __m;
__h ^= __h >> 15;
return __h;
}
template <class _Size>
struct __murmur2_or_cityhash<_Size, 64>
{
inline _Size operator()(const void* __key, _Size __len) _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK;
private:
// Some primes between 2^63 and 2^64.
static const _Size __k0 = 0xc3a5c85c97cb3127ULL;
static const _Size __k1 = 0xb492b66fbe98f273ULL;
static const _Size __k2 = 0x9ae16a3b2f90404fULL;
static const _Size __k3 = 0xc949d7c7509e6557ULL;
static _Size __rotate(_Size __val, int __shift) {
return __shift == 0 ? __val : ((__val >> __shift) | (__val << (64 - __shift)));
}
static _Size __rotate_by_at_least_1(_Size __val, int __shift) {
return (__val >> __shift) | (__val << (64 - __shift));
}
static _Size __shift_mix(_Size __val) {
return __val ^ (__val >> 47);
}
static _Size __hash_len_16(_Size __u, _Size __v)
_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
{
const _Size __mul = 0x9ddfea08eb382d69ULL;
_Size __a = (__u ^ __v) * __mul;
__a ^= (__a >> 47);
_Size __b = (__v ^ __a) * __mul;
__b ^= (__b >> 47);
__b *= __mul;
return __b;
}
static _Size __hash_len_0_to_16(const char* __s, _Size __len)
_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
{
if (__len > 8) {
const _Size __a = __loadword<_Size>(__s);
const _Size __b = __loadword<_Size>(__s + __len - 8);
return __hash_len_16(__a, __rotate_by_at_least_1(__b + __len, __len)) ^ __b;
}
if (__len >= 4) {
const uint32_t __a = __loadword<uint32_t>(__s);
const uint32_t __b = __loadword<uint32_t>(__s + __len - 4);
return __hash_len_16(__len + (__a << 3), __b);
}
if (__len > 0) {
const unsigned char __a = __s[0];
const unsigned char __b = __s[__len >> 1];
const unsigned char __c = __s[__len - 1];
const uint32_t __y = static_cast<uint32_t>(__a) +
(static_cast<uint32_t>(__b) << 8);
const uint32_t __z = __len + (static_cast<uint32_t>(__c) << 2);
return __shift_mix(__y * __k2 ^ __z * __k3) * __k2;
}
return __k2;
}
static _Size __hash_len_17_to_32(const char *__s, _Size __len)
_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
{
const _Size __a = __loadword<_Size>(__s) * __k1;
const _Size __b = __loadword<_Size>(__s + 8);
const _Size __c = __loadword<_Size>(__s + __len - 8) * __k2;
const _Size __d = __loadword<_Size>(__s + __len - 16) * __k0;
return __hash_len_16(__rotate(__a - __b, 43) + __rotate(__c, 30) + __d,
__a + __rotate(__b ^ __k3, 20) - __c + __len);
}
// Return a 16-byte hash for 48 bytes. Quick and dirty.
// Callers do best to use "random-looking" values for a and b.
static pair<_Size, _Size> __weak_hash_len_32_with_seeds(
_Size __w, _Size __x, _Size __y, _Size __z, _Size __a, _Size __b)
_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
{
__a += __w;
__b = __rotate(__b + __a + __z, 21);
const _Size __c = __a;
__a += __x;
__a += __y;
__b += __rotate(__a, 44);
return pair<_Size, _Size>(__a + __z, __b + __c);
}
// Return a 16-byte hash for s[0] ... s[31], a, and b. Quick and dirty.
static pair<_Size, _Size> __weak_hash_len_32_with_seeds(
const char* __s, _Size __a, _Size __b)
_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
{
return __weak_hash_len_32_with_seeds(__loadword<_Size>(__s),
__loadword<_Size>(__s + 8),
__loadword<_Size>(__s + 16),
__loadword<_Size>(__s + 24),
__a,
__b);
}
// Return an 8-byte hash for 33 to 64 bytes.
static _Size __hash_len_33_to_64(const char *__s, size_t __len)
_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
{
_Size __z = __loadword<_Size>(__s + 24);
_Size __a = __loadword<_Size>(__s) +
(__len + __loadword<_Size>(__s + __len - 16)) * __k0;
_Size __b = __rotate(__a + __z, 52);
_Size __c = __rotate(__a, 37);
__a += __loadword<_Size>(__s + 8);
__c += __rotate(__a, 7);
__a += __loadword<_Size>(__s + 16);
_Size __vf = __a + __z;
_Size __vs = __b + __rotate(__a, 31) + __c;
__a = __loadword<_Size>(__s + 16) + __loadword<_Size>(__s + __len - 32);
__z += __loadword<_Size>(__s + __len - 8);
__b = __rotate(__a + __z, 52);
__c = __rotate(__a, 37);
__a += __loadword<_Size>(__s + __len - 24);
__c += __rotate(__a, 7);
__a += __loadword<_Size>(__s + __len - 16);
_Size __wf = __a + __z;
_Size __ws = __b + __rotate(__a, 31) + __c;
_Size __r = __shift_mix((__vf + __ws) * __k2 + (__wf + __vs) * __k0);
return __shift_mix(__r * __k0 + __vs) * __k2;
}
};
// cityhash64
template <class _Size>
_Size
__murmur2_or_cityhash<_Size, 64>::operator()(const void* __key, _Size __len)
{
const char* __s = static_cast<const char*>(__key);
if (__len <= 32) {
if (__len <= 16) {
return __hash_len_0_to_16(__s, __len);
} else {
return __hash_len_17_to_32(__s, __len);
}
} else if (__len <= 64) {
return __hash_len_33_to_64(__s, __len);
}
// For strings over 64 bytes we hash the end first, and then as we
// loop we keep 56 bytes of state: v, w, x, y, and z.
_Size __x = __loadword<_Size>(__s + __len - 40);
_Size __y = __loadword<_Size>(__s + __len - 16) +
__loadword<_Size>(__s + __len - 56);
_Size __z = __hash_len_16(__loadword<_Size>(__s + __len - 48) + __len,
__loadword<_Size>(__s + __len - 24));
pair<_Size, _Size> __v = __weak_hash_len_32_with_seeds(__s + __len - 64, __len, __z);
pair<_Size, _Size> __w = __weak_hash_len_32_with_seeds(__s + __len - 32, __y + __k1, __x);
__x = __x * __k1 + __loadword<_Size>(__s);
// Decrease len to the nearest multiple of 64, and operate on 64-byte chunks.
__len = (__len - 1) & ~static_cast<_Size>(63);
do {
__x = __rotate(__x + __y + __v.first + __loadword<_Size>(__s + 8), 37) * __k1;
__y = __rotate(__y + __v.second + __loadword<_Size>(__s + 48), 42) * __k1;
__x ^= __w.second;
__y += __v.first + __loadword<_Size>(__s + 40);
__z = __rotate(__z + __w.first, 33) * __k1;
__v = __weak_hash_len_32_with_seeds(__s, __v.second * __k1, __x + __w.first);
__w = __weak_hash_len_32_with_seeds(__s + 32, __z + __w.second,
__y + __loadword<_Size>(__s + 16));
_VSTD::swap(__z, __x);
__s += 64;
__len -= 64;
} while (__len != 0);
return __hash_len_16(
__hash_len_16(__v.first, __w.first) + __shift_mix(__y) * __k1 + __z,
__hash_len_16(__v.second, __w.second) + __x);
}
template <class _Tp, size_t = sizeof(_Tp) / sizeof(size_t)>
struct __scalar_hash;
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <class _Tp>
struct __scalar_hash<_Tp, 0>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<_Tp, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp __v) const _NOEXCEPT
{
union
{
_Tp __t;
size_t __a;
} __u;
__u.__a = 0;
__u.__t = __v;
return __u.__a;
}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <class _Tp>
struct __scalar_hash<_Tp, 1>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<_Tp, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp __v) const _NOEXCEPT
{
union
{
_Tp __t;
size_t __a;
} __u;
__u.__t = __v;
return __u.__a;
}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <class _Tp>
struct __scalar_hash<_Tp, 2>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<_Tp, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp __v) const _NOEXCEPT
{
union
{
_Tp __t;
struct
{
size_t __a;
size_t __b;
} __s;
} __u;
__u.__t = __v;
return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <class _Tp>
struct __scalar_hash<_Tp, 3>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<_Tp, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp __v) const _NOEXCEPT
{
union
{
_Tp __t;
struct
{
size_t __a;
size_t __b;
size_t __c;
} __s;
} __u;
__u.__t = __v;
return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <class _Tp>
struct __scalar_hash<_Tp, 4>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<_Tp, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp __v) const _NOEXCEPT
{
union
{
_Tp __t;
struct
{
size_t __a;
size_t __b;
size_t __c;
size_t __d;
} __s;
} __u;
__u.__t = __v;
return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
}
};
struct _PairT {
size_t first;
size_t second;
};
_LIBCPP_INLINE_VISIBILITY
inline size_t __hash_combine(size_t __lhs, size_t __rhs) _NOEXCEPT {
typedef __scalar_hash<_PairT> _HashT;
const _PairT __p = {__lhs, __rhs};
return _HashT()(__p);
}
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template<class _Tp>
struct _LIBCPP_TEMPLATE_VIS hash<_Tp*>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<_Tp*, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp* argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp* __v) const _NOEXCEPT
{
union
{
_Tp* __t;
size_t __a;
} __u;
__u.__t = __v;
return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<bool>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<bool, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef bool argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(bool __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<char>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<char, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef char argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(char __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<signed char>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<signed char, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef signed char argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(signed char __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<unsigned char>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<unsigned char, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef unsigned char argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(unsigned char __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
#ifndef _LIBCPP_HAS_NO_CHAR8_T
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<char8_t>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<char8_t, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef char8_t argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(char8_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
#endif // !_LIBCPP_HAS_NO_CHAR8_T
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<char16_t>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<char16_t, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef char16_t argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(char16_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<char32_t>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<char32_t, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef char32_t argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(char32_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<wchar_t>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<wchar_t, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef wchar_t argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(wchar_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<short>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<short, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef short argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(short __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<unsigned short>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<unsigned short, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef unsigned short argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(unsigned short __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<int>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<int, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef int argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(int __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<unsigned int>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<unsigned int, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef unsigned int argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(unsigned int __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<long>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<long, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef long argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(long __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<unsigned long>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<unsigned long, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef unsigned long argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(unsigned long __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
};
template <>
struct _LIBCPP_TEMPLATE_VIS hash<long long>
: public __scalar_hash<long long>
{
};
template <>
struct _LIBCPP_TEMPLATE_VIS hash<unsigned long long>
: public __scalar_hash<unsigned long long>
{
};
#ifndef _LIBCPP_HAS_NO_INT128
template <>
struct _LIBCPP_TEMPLATE_VIS hash<__int128_t>
: public __scalar_hash<__int128_t>
{
};
template <>
struct _LIBCPP_TEMPLATE_VIS hash<__uint128_t>
: public __scalar_hash<__uint128_t>
{
};
#endif
template <>
struct _LIBCPP_TEMPLATE_VIS hash<float>
: public __scalar_hash<float>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(float __v) const _NOEXCEPT
{
// -0.0 and 0.0 should return same hash
if (__v == 0.0f)
return 0;
return __scalar_hash<float>::operator()(__v);
}
};
template <>
struct _LIBCPP_TEMPLATE_VIS hash<double>
: public __scalar_hash<double>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(double __v) const _NOEXCEPT
{
// -0.0 and 0.0 should return same hash
if (__v == 0.0)
return 0;
return __scalar_hash<double>::operator()(__v);
}
};
template <>
struct _LIBCPP_TEMPLATE_VIS hash<long double>
: public __scalar_hash<long double>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(long double __v) const _NOEXCEPT
{
// -0.0 and 0.0 should return same hash
if (__v == 0.0L)
return 0;
#if defined(__i386__) || (defined(__x86_64__) && defined(__ILP32__))
// Zero out padding bits
union
{
long double __t;
struct
{
size_t __a;
size_t __b;
size_t __c;
size_t __d;
} __s;
} __u;
__u.__s.__a = 0;
__u.__s.__b = 0;
__u.__s.__c = 0;
__u.__s.__d = 0;
__u.__t = __v;
return __u.__s.__a ^ __u.__s.__b ^ __u.__s.__c ^ __u.__s.__d;
#elif defined(__x86_64__)
// Zero out padding bits
union
{
long double __t;
struct
{
size_t __a;
size_t __b;
} __s;
} __u;
__u.__s.__a = 0;
__u.__s.__b = 0;
__u.__t = __v;
return __u.__s.__a ^ __u.__s.__b;
#else
return __scalar_hash<long double>::operator()(__v);
#endif
}
};
#if _LIBCPP_STD_VER > 11
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <class _Tp, bool = is_enum<_Tp>::value>
struct _LIBCPP_TEMPLATE_VIS __enum_hash
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<_Tp, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(_Tp __v) const _NOEXCEPT
{
typedef typename underlying_type<_Tp>::type type;
return hash<type>{}(static_cast<type>(__v));
}
};
template <class _Tp>
struct _LIBCPP_TEMPLATE_VIS __enum_hash<_Tp, false> {
__enum_hash() = delete;
__enum_hash(__enum_hash const&) = delete;
__enum_hash& operator=(__enum_hash const&) = delete;
};
template <class _Tp>
struct _LIBCPP_TEMPLATE_VIS hash : public __enum_hash<_Tp>
{
};
#endif
#if _LIBCPP_STD_VER > 14
_LIBCPP_SUPPRESS_DEPRECATED_PUSH
template <>
struct _LIBCPP_TEMPLATE_VIS hash<nullptr_t>
#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
: public unary_function<nullptr_t, size_t>
#endif
{
_LIBCPP_SUPPRESS_DEPRECATED_POP
#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
_LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
_LIBCPP_DEPRECATED_IN_CXX17 typedef nullptr_t argument_type;
#endif
_LIBCPP_INLINE_VISIBILITY
size_t operator()(nullptr_t) const _NOEXCEPT {
return 662607004ull;
}
};
#endif
#ifndef _LIBCPP_CXX03_LANG
template <class _Key, class _Hash>
using __check_hash_requirements _LIBCPP_NODEBUG_TYPE = integral_constant<bool,
is_copy_constructible<_Hash>::value &&
is_move_constructible<_Hash>::value &&
__invokable_r<size_t, _Hash, _Key const&>::value
>;
template <class _Key, class _Hash = hash<_Key> >
using __has_enabled_hash _LIBCPP_NODEBUG_TYPE = integral_constant<bool,
__check_hash_requirements<_Key, _Hash>::value &&
is_default_constructible<_Hash>::value
>;
#if _LIBCPP_STD_VER > 14
template <class _Type, class>
using __enable_hash_helper_imp _LIBCPP_NODEBUG_TYPE = _Type;
template <class _Type, class ..._Keys>
using __enable_hash_helper _LIBCPP_NODEBUG_TYPE = __enable_hash_helper_imp<_Type,
typename enable_if<__all<__has_enabled_hash<_Keys>::value...>::value>::type
>;
#else
template <class _Type, class ...>
using __enable_hash_helper _LIBCPP_NODEBUG_TYPE = _Type;
#endif
#endif // !_LIBCPP_CXX03_LANG
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___FUNCTIONAL_HASH_H

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//===----------------------------------------------------------------------===//
//
// 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___FUNCTIONAL_UNARY_FUNCTION_H
#define _LIBCPP___FUNCTIONAL_UNARY_FUNCTION_H
#include <__config>
#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 _Arg, class _Result>
struct _LIBCPP_TEMPLATE_VIS unary_function
{
typedef _Arg argument_type;
typedef _Result result_type;
};
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___FUNCTIONAL_UNARY_FUNCTION_H

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//===----------------------------------------------------------------------===//
//
// 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___FUNCTIONAL_UNWRAP_REF_H
#define _LIBCPP___FUNCTIONAL_UNWRAP_REF_H
#include <__config>
#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 _Tp>
struct __unwrap_reference { typedef _LIBCPP_NODEBUG_TYPE _Tp type; };
template <class _Tp>
class reference_wrapper;
template <class _Tp>
struct __unwrap_reference<reference_wrapper<_Tp> > { typedef _LIBCPP_NODEBUG_TYPE _Tp& type; };
template <class _Tp>
struct decay;
#if _LIBCPP_STD_VER > 17
template <class _Tp>
struct unwrap_reference : __unwrap_reference<_Tp> { };
template <class _Tp>
struct unwrap_ref_decay : unwrap_reference<typename decay<_Tp>::type> { };
#endif // > C++17
template <class _Tp>
struct __unwrap_ref_decay
#if _LIBCPP_STD_VER > 17
: unwrap_ref_decay<_Tp>
#else
: __unwrap_reference<typename decay<_Tp>::type>
#endif
{ };
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___FUNCTIONAL_UNWRAP_REF_H

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libcxx/include/__functional_base
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@ -11,6 +11,7 @@
#define _LIBCPP_FUNCTIONAL_BASE
#include <__config>
#include <__functional/unary_function.h>
#include <exception>
#include <new>
#include <type_traits>

1
libcxx/include/__memory/unique_ptr.h
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@ -12,6 +12,7 @@
#include <__config>
#include <__functional_base> // std::less
#include <__functional/hash.h>
#include <__memory/allocator_traits.h> // __pointer
#include <__memory/compressed_pair.h>
#include <__utility/forward.h>

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libcxx/include/__tree
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@ -14,6 +14,7 @@
#include <__utility/forward.h>
#include <algorithm>
#include <iterator>
#include <limits>
#include <memory>
#include <stdexcept>

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//===----------------------------------------------------------------------===//
//
// 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___UTILITY_AS_CONST_H
#define _LIBCPP___UTILITY_AS_CONST_H
#include <__config>
#include <__utility/forward.h>
#include <__utility/move.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
#if _LIBCPP_STD_VER > 14
template <class _Tp>
_LIBCPP_NODISCARD_EXT constexpr add_const_t<_Tp>& as_const(_Tp& __t) noexcept { return __t; }
template <class _Tp>
void as_const(const _Tp&&) = delete;
#endif
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___UTILITY_AS_CONST_H

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//===----------------------------------------------------------------------===//
//
// 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___UTILITY_CMP_H
#define _LIBCPP___UTILITY_CMP_H
#include <__config>
#include <__utility/forward.h>
#include <__utility/move.h>
#include <limits>
#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
#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CONCEPTS)
template<class _Tp, class... _Up>
struct _IsSameAsAny : _Or<_IsSame<_Tp, _Up>...> {};
template<class _Tp>
concept __is_safe_integral_cmp = is_integral_v<_Tp> &&
!_IsSameAsAny<_Tp, bool, char,
#ifndef _LIBCPP_HAS_NO_CHAR8_T
char8_t,
#endif
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
char16_t, char32_t,
#endif
wchar_t>::value;
template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
_LIBCPP_INLINE_VISIBILITY constexpr
bool cmp_equal(_Tp __t, _Up __u) noexcept
{
if constexpr (is_signed_v<_Tp> == is_signed_v<_Up>)
return __t == __u;
else if constexpr (is_signed_v<_Tp>)
return __t < 0 ? false : make_unsigned_t<_Tp>(__t) == __u;
else
return __u < 0 ? false : __t == make_unsigned_t<_Up>(__u);
}
template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
_LIBCPP_INLINE_VISIBILITY constexpr
bool cmp_not_equal(_Tp __t, _Up __u) noexcept
{
return !_VSTD::cmp_equal(__t, __u);
}
template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
_LIBCPP_INLINE_VISIBILITY constexpr
bool cmp_less(_Tp __t, _Up __u) noexcept
{
if constexpr (is_signed_v<_Tp> == is_signed_v<_Up>)
return __t < __u;
else if constexpr (is_signed_v<_Tp>)
return __t < 0 ? true : make_unsigned_t<_Tp>(__t) < __u;
else
return __u < 0 ? false : __t < make_unsigned_t<_Up>(__u);
}
template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
_LIBCPP_INLINE_VISIBILITY constexpr
bool cmp_greater(_Tp __t, _Up __u) noexcept
{
return _VSTD::cmp_less(__u, __t);
}
template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
_LIBCPP_INLINE_VISIBILITY constexpr
bool cmp_less_equal(_Tp __t, _Up __u) noexcept
{
return !_VSTD::cmp_greater(__t, __u);
}
template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
_LIBCPP_INLINE_VISIBILITY constexpr
bool cmp_greater_equal(_Tp __t, _Up __u) noexcept
{
return !_VSTD::cmp_less(__t, __u);
}
template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
_LIBCPP_INLINE_VISIBILITY constexpr
bool in_range(_Up __u) noexcept
{
return _VSTD::cmp_less_equal(__u, numeric_limits<_Tp>::max()) &&
_VSTD::cmp_greater_equal(__u, numeric_limits<_Tp>::min());
}
#endif
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___UTILITY_CMP_H

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//===----------------------------------------------------------------------===//
//
// 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___UTILITY_EXCHANGE_H
#define _LIBCPP___UTILITY_EXCHANGE_H
#include <__config>
#include <__utility/forward.h>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
#if _LIBCPP_STD_VER > 11
template<class _T1, class _T2 = _T1>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
_T1 exchange(_T1& __obj, _T2 && __new_value)
{
_T1 __old_value = _VSTD::move(__obj);
__obj = _VSTD::forward<_T2>(__new_value);
return __old_value;
}
#endif // _LIBCPP_STD_VER > 11
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___UTILITY_EXCHANGE_H

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//===----------------------------------------------------------------------===//
//
// 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___UTILITY_IN_PLACE_H
#define _LIBCPP___UTILITY_IN_PLACE_H
#include <__config>
#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
#if _LIBCPP_STD_VER > 14
struct _LIBCPP_TYPE_VIS in_place_t {
explicit in_place_t() = default;
};
_LIBCPP_INLINE_VAR constexpr in_place_t in_place{};
template <class _Tp>
struct _LIBCPP_TEMPLATE_VIS in_place_type_t {
explicit in_place_type_t() = default;
};
template <class _Tp>
_LIBCPP_INLINE_VAR constexpr in_place_type_t<_Tp> in_place_type{};
template <size_t _Idx>
struct _LIBCPP_TEMPLATE_VIS in_place_index_t {
explicit in_place_index_t() = default;
};
template <size_t _Idx>
_LIBCPP_INLINE_VAR constexpr in_place_index_t<_Idx> in_place_index{};
template <class _Tp> struct __is_inplace_type_imp : false_type {};
template <class _Tp> struct __is_inplace_type_imp<in_place_type_t<_Tp>> : true_type {};
template <class _Tp>
using __is_inplace_type = __is_inplace_type_imp<__uncvref_t<_Tp>>;
template <class _Tp> struct __is_inplace_index_imp : false_type {};
template <size_t _Idx> struct __is_inplace_index_imp<in_place_index_t<_Idx>> : true_type {};
template <class _Tp>
using __is_inplace_index = __is_inplace_index_imp<__uncvref_t<_Tp>>;
#endif // _LIBCPP_STD_VER > 14
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___UTILITY_IN_PLACE_H

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@ -0,0 +1,83 @@
//===----------------------------------------------------------------------===//
//
// 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___UTILITY_INTEGER_SEQUENCE_H
#define _LIBCPP___UTILITY_INTEGER_SEQUENCE_H
#include <__config>
#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
#if _LIBCPP_STD_VER > 11
template<class _Tp, _Tp... _Ip>
struct _LIBCPP_TEMPLATE_VIS integer_sequence
{
typedef _Tp value_type;
static_assert( is_integral<_Tp>::value,
"std::integer_sequence can only be instantiated with an integral type" );
static
_LIBCPP_INLINE_VISIBILITY
constexpr
size_t
size() noexcept { return sizeof...(_Ip); }
};
template<size_t... _Ip>
using index_sequence = integer_sequence<size_t, _Ip...>;
#if __has_builtin(__make_integer_seq) && !defined(_LIBCPP_TESTING_FALLBACK_MAKE_INTEGER_SEQUENCE)
template <class _Tp, _Tp _Ep>
using __make_integer_sequence _LIBCPP_NODEBUG_TYPE = __make_integer_seq<integer_sequence, _Tp, _Ep>;
#else
template<typename _Tp, _Tp _Np> using __make_integer_sequence_unchecked _LIBCPP_NODEBUG_TYPE =
typename __detail::__make<_Np>::type::template __convert<integer_sequence, _Tp>;
template <class _Tp, _Tp _Ep>
struct __make_integer_sequence_checked
{
static_assert(is_integral<_Tp>::value,
"std::make_integer_sequence can only be instantiated with an integral type" );
static_assert(0 <= _Ep, "std::make_integer_sequence must have a non-negative sequence length");
// Workaround GCC bug by preventing bad installations when 0 <= _Ep
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68929
typedef _LIBCPP_NODEBUG_TYPE __make_integer_sequence_unchecked<_Tp, 0 <= _Ep ? _Ep : 0> type;
};
template <class _Tp, _Tp _Ep>
using __make_integer_sequence _LIBCPP_NODEBUG_TYPE = typename __make_integer_sequence_checked<_Tp, _Ep>::type;
#endif
template<class _Tp, _Tp _Np>
using make_integer_sequence = __make_integer_sequence<_Tp, _Np>;
template<size_t _Np>
using make_index_sequence = make_integer_sequence<size_t, _Np>;
template<class... _Tp>
using index_sequence_for = make_index_sequence<sizeof...(_Tp)>;
#endif // _LIBCPP_STD_VER > 11
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___UTILITY_INTEGER_SEQUENCE_H

585
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//===----------------------------------------------------------------------===//
//
// 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___UTILITY_PAIR_H
#define _LIBCPP___UTILITY_PAIR_H
#include <__config>
#include <__functional/unwrap_ref.h>
#include <__tuple>
#include <__utility/forward.h>
#include <__utility/move.h>
#include <__utility/piecewise_construct.h>
#include <cstddef>
#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
#if defined(_LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR)
template <class, class>
struct __non_trivially_copyable_base {
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
__non_trivially_copyable_base() _NOEXCEPT {}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
__non_trivially_copyable_base(__non_trivially_copyable_base const&) _NOEXCEPT {}
};
#endif
template <class _T1, class _T2>
struct _LIBCPP_TEMPLATE_VIS pair
#if defined(_LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR)
: private __non_trivially_copyable_base<_T1, _T2>
#endif
{
typedef _T1 first_type;
typedef _T2 second_type;
_T1 first;
_T2 second;
#if !defined(_LIBCPP_CXX03_LANG)
pair(pair const&) = default;
pair(pair&&) = default;
#else
// Use the implicitly declared copy constructor in C++03
#endif
#ifdef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
pair() : first(), second() {}
_LIBCPP_INLINE_VISIBILITY
pair(_T1 const& __t1, _T2 const& __t2) : first(__t1), second(__t2) {}
template <class _U1, class _U2>
_LIBCPP_INLINE_VISIBILITY
pair(const pair<_U1, _U2>& __p) : first(__p.first), second(__p.second) {}
_LIBCPP_INLINE_VISIBILITY
pair& operator=(pair const& __p) {
first = __p.first;
second = __p.second;
return *this;
}
#else
template <bool _Val>
using _EnableB _LIBCPP_NODEBUG_TYPE = typename enable_if<_Val, bool>::type;
struct _CheckArgs {
template <int&...>
static constexpr bool __enable_explicit_default() {
return is_default_constructible<_T1>::value
&& is_default_constructible<_T2>::value
&& !__enable_implicit_default<>();
}
template <int&...>
static constexpr bool __enable_implicit_default() {
return __is_implicitly_default_constructible<_T1>::value
&& __is_implicitly_default_constructible<_T2>::value;
}
template <class _U1, class _U2>
static constexpr bool __enable_explicit() {
return is_constructible<first_type, _U1>::value
&& is_constructible<second_type, _U2>::value
&& (!is_convertible<_U1, first_type>::value
|| !is_convertible<_U2, second_type>::value);
}
template <class _U1, class _U2>
static constexpr bool __enable_implicit() {
return is_constructible<first_type, _U1>::value
&& is_constructible<second_type, _U2>::value
&& is_convertible<_U1, first_type>::value
&& is_convertible<_U2, second_type>::value;
}
};
template <bool _MaybeEnable>
using _CheckArgsDep _LIBCPP_NODEBUG_TYPE = typename conditional<
_MaybeEnable, _CheckArgs, __check_tuple_constructor_fail>::type;
struct _CheckTupleLikeConstructor {
template <class _Tuple>
static constexpr bool __enable_implicit() {
return __tuple_convertible<_Tuple, pair>::value;
}
template <class _Tuple>
static constexpr bool __enable_explicit() {
return __tuple_constructible<_Tuple, pair>::value
&& !__tuple_convertible<_Tuple, pair>::value;
}
template <class _Tuple>
static constexpr bool __enable_assign() {
return __tuple_assignable<_Tuple, pair>::value;
}
};
template <class _Tuple>
using _CheckTLC _LIBCPP_NODEBUG_TYPE = typename conditional<
__tuple_like_with_size<_Tuple, 2>::value
&& !is_same<typename decay<_Tuple>::type, pair>::value,
_CheckTupleLikeConstructor,
__check_tuple_constructor_fail
>::type;
template<bool _Dummy = true, _EnableB<
_CheckArgsDep<_Dummy>::__enable_explicit_default()
> = false>
explicit _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
pair() _NOEXCEPT_(is_nothrow_default_constructible<first_type>::value &&
is_nothrow_default_constructible<second_type>::value)
: first(), second() {}
template<bool _Dummy = true, _EnableB<
_CheckArgsDep<_Dummy>::__enable_implicit_default()
> = false>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
pair() _NOEXCEPT_(is_nothrow_default_constructible<first_type>::value &&
is_nothrow_default_constructible<second_type>::value)
: first(), second() {}
template <bool _Dummy = true, _EnableB<
_CheckArgsDep<_Dummy>::template __enable_explicit<_T1 const&, _T2 const&>()
> = false>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
explicit pair(_T1 const& __t1, _T2 const& __t2)
_NOEXCEPT_(is_nothrow_copy_constructible<first_type>::value &&
is_nothrow_copy_constructible<second_type>::value)
: first(__t1), second(__t2) {}
template<bool _Dummy = true, _EnableB<
_CheckArgsDep<_Dummy>::template __enable_implicit<_T1 const&, _T2 const&>()
> = false>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
pair(_T1 const& __t1, _T2 const& __t2)
_NOEXCEPT_(is_nothrow_copy_constructible<first_type>::value &&
is_nothrow_copy_constructible<second_type>::value)
: first(__t1), second(__t2) {}
template<class _U1, class _U2, _EnableB<
_CheckArgs::template __enable_explicit<_U1, _U2>()
> = false>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
explicit pair(_U1&& __u1, _U2&& __u2)
_NOEXCEPT_((is_nothrow_constructible<first_type, _U1>::value &&
is_nothrow_constructible<second_type, _U2>::value))
: first(_VSTD::forward<_U1>(__u1)), second(_VSTD::forward<_U2>(__u2)) {}
template<class _U1, class _U2, _EnableB<
_CheckArgs::template __enable_implicit<_U1, _U2>()
> = false>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
pair(_U1&& __u1, _U2&& __u2)
_NOEXCEPT_((is_nothrow_constructible<first_type, _U1>::value &&
is_nothrow_constructible<second_type, _U2>::value))
: first(_VSTD::forward<_U1>(__u1)), second(_VSTD::forward<_U2>(__u2)) {}
template<class _U1, class _U2, _EnableB<
_CheckArgs::template __enable_explicit<_U1 const&, _U2 const&>()
> = false>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
explicit pair(pair<_U1, _U2> const& __p)
_NOEXCEPT_((is_nothrow_constructible<first_type, _U1 const&>::value &&
is_nothrow_constructible<second_type, _U2 const&>::value))
: first(__p.first), second(__p.second) {}
template<class _U1, class _U2, _EnableB<
_CheckArgs::template __enable_implicit<_U1 const&, _U2 const&>()
> = false>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
pair(pair<_U1, _U2> const& __p)
_NOEXCEPT_((is_nothrow_constructible<first_type, _U1 const&>::value &&
is_nothrow_constructible<second_type, _U2 const&>::value))
: first(__p.first), second(__p.second) {}
template<class _U1, class _U2, _EnableB<
_CheckArgs::template __enable_explicit<_U1, _U2>()
> = false>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
explicit pair(pair<_U1, _U2>&&__p)
_NOEXCEPT_((is_nothrow_constructible<first_type, _U1&&>::value &&
is_nothrow_constructible<second_type, _U2&&>::value))
: first(_VSTD::forward<_U1>(__p.first)), second(_VSTD::forward<_U2>(__p.second)) {}
template<class _U1, class _U2, _EnableB<
_CheckArgs::template __enable_implicit<_U1, _U2>()
> = false>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
pair(pair<_U1, _U2>&& __p)
_NOEXCEPT_((is_nothrow_constructible<first_type, _U1&&>::value &&
is_nothrow_constructible<second_type, _U2&&>::value))
: first(_VSTD::forward<_U1>(__p.first)), second(_VSTD::forward<_U2>(__p.second)) {}
template<class _Tuple, _EnableB<
_CheckTLC<_Tuple>::template __enable_explicit<_Tuple>()
> = false>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
explicit pair(_Tuple&& __p)
: first(_VSTD::get<0>(_VSTD::forward<_Tuple>(__p))),
second(_VSTD::get<1>(_VSTD::forward<_Tuple>(__p))) {}
template<class _Tuple, _EnableB<
_CheckTLC<_Tuple>::template __enable_implicit<_Tuple>()
> = false>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
pair(_Tuple&& __p)
: first(_VSTD::get<0>(_VSTD::forward<_Tuple>(__p))),
second(_VSTD::get<1>(_VSTD::forward<_Tuple>(__p))) {}
template <class... _Args1, class... _Args2>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
pair(piecewise_construct_t __pc,
tuple<_Args1...> __first_args, tuple<_Args2...> __second_args)
_NOEXCEPT_((is_nothrow_constructible<first_type, _Args1...>::value &&
is_nothrow_constructible<second_type, _Args2...>::value))
: pair(__pc, __first_args, __second_args,
typename __make_tuple_indices<sizeof...(_Args1)>::type(),
typename __make_tuple_indices<sizeof...(_Args2) >::type()) {}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
pair& operator=(typename conditional<
is_copy_assignable<first_type>::value &&
is_copy_assignable<second_type>::value,
pair, __nat>::type const& __p)
_NOEXCEPT_(is_nothrow_copy_assignable<first_type>::value &&
is_nothrow_copy_assignable<second_type>::value)
{
first = __p.first;
second = __p.second;
return *this;
}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
pair& operator=(typename conditional<
is_move_assignable<first_type>::value &&
is_move_assignable<second_type>::value,
pair, __nat>::type&& __p)
_NOEXCEPT_(is_nothrow_move_assignable<first_type>::value &&
is_nothrow_move_assignable<second_type>::value)
{
first = _VSTD::forward<first_type>(__p.first);
second = _VSTD::forward<second_type>(__p.second);
return *this;
}
template <class _Tuple, _EnableB<
_CheckTLC<_Tuple>::template __enable_assign<_Tuple>()
> = false>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
pair& operator=(_Tuple&& __p) {
first = _VSTD::get<0>(_VSTD::forward<_Tuple>(__p));
second = _VSTD::get<1>(_VSTD::forward<_Tuple>(__p));
return *this;
}
#endif
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
void
swap(pair& __p) _NOEXCEPT_(__is_nothrow_swappable<first_type>::value &&
__is_nothrow_swappable<second_type>::value)
{
using _VSTD::swap;
swap(first, __p.first);
swap(second, __p.second);
}
private:
#ifndef _LIBCPP_CXX03_LANG
template <class... _Args1, class... _Args2, size_t... _I1, size_t... _I2>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
pair(piecewise_construct_t,
tuple<_Args1...>& __first_args, tuple<_Args2...>& __second_args,
__tuple_indices<_I1...>, __tuple_indices<_I2...>);
#endif
};
#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES
template<class _T1, class _T2>
pair(_T1, _T2) -> pair<_T1, _T2>;
#endif // _LIBCPP_HAS_NO_DEDUCTION_GUIDES
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
bool
operator==(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y)
{
return __x.first == __y.first && __x.second == __y.second;
}
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
bool
operator!=(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y)
{
return !(__x == __y);
}
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
bool
operator< (const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y)
{
return __x.first < __y.first || (!(__y.first < __x.first) && __x.second < __y.second);
}
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
bool
operator> (const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y)
{
return __y < __x;
}
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
bool
operator>=(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y)
{
return !(__x < __y);
}
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
bool
operator<=(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y)
{
return !(__y < __x);
}
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
typename enable_if
<
__is_swappable<_T1>::value &&
__is_swappable<_T2>::value,
void
>::type
swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y)
_NOEXCEPT_((__is_nothrow_swappable<_T1>::value &&
__is_nothrow_swappable<_T2>::value))
{
__x.swap(__y);
}
#ifndef _LIBCPP_CXX03_LANG
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
pair<typename __unwrap_ref_decay<_T1>::type, typename __unwrap_ref_decay<_T2>::type>
make_pair(_T1&& __t1, _T2&& __t2)
{
return pair<typename __unwrap_ref_decay<_T1>::type, typename __unwrap_ref_decay<_T2>::type>
(_VSTD::forward<_T1>(__t1), _VSTD::forward<_T2>(__t2));
}
#else // _LIBCPP_CXX03_LANG
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY
pair<_T1,_T2>
make_pair(_T1 __x, _T2 __y)
{
return pair<_T1, _T2>(__x, __y);
}
#endif // _LIBCPP_CXX03_LANG
template <class _T1, class _T2>
struct _LIBCPP_TEMPLATE_VIS tuple_size<pair<_T1, _T2> >
: public integral_constant<size_t, 2> {};
template <size_t _Ip, class _T1, class _T2>
struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, pair<_T1, _T2> >
{
static_assert(_Ip < 2, "Index out of bounds in std::tuple_element<std::pair<T1, T2>>");
};
template <class _T1, class _T2>
struct _LIBCPP_TEMPLATE_VIS tuple_element<0, pair<_T1, _T2> >
{
typedef _LIBCPP_NODEBUG_TYPE _T1 type;
};
template <class _T1, class _T2>
struct _LIBCPP_TEMPLATE_VIS tuple_element<1, pair<_T1, _T2> >
{
typedef _LIBCPP_NODEBUG_TYPE _T2 type;
};
template <size_t _Ip> struct __get_pair;
template <>
struct __get_pair<0>
{
template <class _T1, class _T2>
static
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_T1&
get(pair<_T1, _T2>& __p) _NOEXCEPT {return __p.first;}
template <class _T1, class _T2>
static
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const _T1&
get(const pair<_T1, _T2>& __p) _NOEXCEPT {return __p.first;}
#ifndef _LIBCPP_CXX03_LANG
template <class _T1, class _T2>
static
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_T1&&
get(pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<_T1>(__p.first);}
template <class _T1, class _T2>
static
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const _T1&&
get(const pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<const _T1>(__p.first);}
#endif // _LIBCPP_CXX03_LANG
};
template <>
struct __get_pair<1>
{
template <class _T1, class _T2>
static
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_T2&
get(pair<_T1, _T2>& __p) _NOEXCEPT {return __p.second;}
template <class _T1, class _T2>
static
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const _T2&
get(const pair<_T1, _T2>& __p) _NOEXCEPT {return __p.second;}
#ifndef _LIBCPP_CXX03_LANG
template <class _T1, class _T2>
static
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_T2&&
get(pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<_T2>(__p.second);}
template <class _T1, class _T2>
static
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const _T2&&
get(const pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<const _T2>(__p.second);}
#endif // _LIBCPP_CXX03_LANG
};
template <size_t _Ip, class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
typename tuple_element<_Ip, pair<_T1, _T2> >::type&
get(pair<_T1, _T2>& __p) _NOEXCEPT
{
return __get_pair<_Ip>::get(__p);
}
template <size_t _Ip, class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const typename tuple_element<_Ip, pair<_T1, _T2> >::type&
get(const pair<_T1, _T2>& __p) _NOEXCEPT
{
return __get_pair<_Ip>::get(__p);
}
#ifndef _LIBCPP_CXX03_LANG
template <size_t _Ip, class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
typename tuple_element<_Ip, pair<_T1, _T2> >::type&&
get(pair<_T1, _T2>&& __p) _NOEXCEPT
{
return __get_pair<_Ip>::get(_VSTD::move(__p));
}
template <size_t _Ip, class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const typename tuple_element<_Ip, pair<_T1, _T2> >::type&&
get(const pair<_T1, _T2>&& __p) _NOEXCEPT
{
return __get_pair<_Ip>::get(_VSTD::move(__p));
}
#endif // _LIBCPP_CXX03_LANG
#if _LIBCPP_STD_VER > 11
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY
constexpr _T1 & get(pair<_T1, _T2>& __p) _NOEXCEPT
{
return __get_pair<0>::get(__p);
}
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY
constexpr _T1 const & get(pair<_T1, _T2> const& __p) _NOEXCEPT
{
return __get_pair<0>::get(__p);
}
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY
constexpr _T1 && get(pair<_T1, _T2>&& __p) _NOEXCEPT
{
return __get_pair<0>::get(_VSTD::move(__p));
}
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY
constexpr _T1 const && get(pair<_T1, _T2> const&& __p) _NOEXCEPT
{
return __get_pair<0>::get(_VSTD::move(__p));
}
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY
constexpr _T1 & get(pair<_T2, _T1>& __p) _NOEXCEPT
{
return __get_pair<1>::get(__p);
}
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY
constexpr _T1 const & get(pair<_T2, _T1> const& __p) _NOEXCEPT
{
return __get_pair<1>::get(__p);
}
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY
constexpr _T1 && get(pair<_T2, _T1>&& __p) _NOEXCEPT
{
return __get_pair<1>::get(_VSTD::move(__p));
}
template <class _T1, class _T2>
inline _LIBCPP_INLINE_VISIBILITY
constexpr _T1 const && get(pair<_T2, _T1> const&& __p) _NOEXCEPT
{
return __get_pair<1>::get(_VSTD::move(__p));
}
#endif
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___UTILITY_PAIR_H

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//===----------------------------------------------------------------------===//
//
// 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___UTILITY_PIECEWISE_CONSTRUCT_H
#define _LIBCPP___UTILITY_PIECEWISE_CONSTRUCT_H
#include <__config>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
struct _LIBCPP_TEMPLATE_VIS piecewise_construct_t { explicit piecewise_construct_t() = default; };
#if defined(_LIBCPP_CXX03_LANG) || defined(_LIBCPP_BUILDING_LIBRARY)
extern _LIBCPP_EXPORTED_FROM_ABI const piecewise_construct_t piecewise_construct;// = piecewise_construct_t();
#else
/* _LIBCPP_INLINE_VAR */ constexpr piecewise_construct_t piecewise_construct = piecewise_construct_t();
#endif
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___UTILITY_PIECEWISE_CONSTRUCT_H

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//===----------------------------------------------------------------------===//
//
// 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___UTILITY_REL_OPS_H
#define _LIBCPP___UTILITY_REL_OPS_H
#include <__config>
#include <__utility/forward.h>
#include <__utility/move.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
namespace rel_ops
{
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const _Tp& __x, const _Tp& __y)
{
return !(__x == __y);
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator> (const _Tp& __x, const _Tp& __y)
{
return __y < __x;
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(const _Tp& __x, const _Tp& __y)
{
return !(__y < __x);
}
template<class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(const _Tp& __x, const _Tp& __y)
{
return !(__x < __y);
}
} // rel_ops
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___UTILITY_REL_OPS_H

1
libcxx/include/deque
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@ -168,6 +168,7 @@ template <class T, class Allocator, class Predicate>
#include <compare>
#include <initializer_list>
#include <iterator>
#include <limits>
#include <stdexcept>
#include <type_traits>
#include <version>

3
libcxx/include/functional
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@ -490,7 +490,10 @@ POLICY: For non-variadic implementations, the number of arguments is limited
#include <__config>
#include <__debug>
#include <__functional_base>
#include <__functional/hash.h>
#include <__functional/search.h>
#include <__functional/unary_function.h>
#include <__functional/unwrap_ref.h>
#include <__utility/forward.h>
#include <concepts>
#include <exception>

26
libcxx/include/module.modulemap
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@ -408,7 +408,10 @@ module std [system] {
header "functional"
export *
module __functional {
module search { header "__functional/search.h" }
module hash { header "__functional/hash.h" }
module search { header "__functional/search.h" }
module unary_function { header "__functional/unary_function.h" }
module unwrap_ref { header "__functional/unwrap_ref.h" }
}
}
module future {
@ -640,6 +643,7 @@ module std [system] {
}
module type_traits {
header "type_traits"
export functional.__functional.unwrap_ref
export *
}
module typeindex {
@ -666,12 +670,20 @@ module std [system] {
export *
module __utility {
module __decay_copy { header "__utility/__decay_copy.h" }
module declval { header "__utility/declval.h" }
module forward { header "__utility/forward.h" }
module move { header "__utility/move.h" }
module swap { header "__utility/swap.h" }
module to_underlying { header "__utility/to_underlying.h" }
module __decay_copy { header "__utility/__decay_copy.h" }
module as_const { header "__utility/as_const.h" }
module cmp { header "__utility/cmp.h" }
module declval { header "__utility/declval.h" }
module exchange { header "__utility/exchange.h" }
module forward { header "__utility/forward.h" }
module in_place { header "__utility/in_place.h" }
module integer_sequence { header "__utility/integer_sequence.h" }
module move { header "__utility/move.h" }
module pair { header "__utility/pair.h" }
module piecewise_construct { header "__utility/piecewise_construct.h" }
module rel_ops { header "__utility/rel_ops.h" }
module swap { header "__utility/swap.h" }
module to_underlying { header "__utility/to_underlying.h" }
}
}
module valarray {

1
libcxx/include/span
View File

@ -134,6 +134,7 @@ template<class Container>
#include <array> // for array
#include <cstddef> // for byte
#include <iterator> // for iterators
#include <limits>
#include <type_traits> // for remove_cv, etc
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)

1
libcxx/include/tuple
View File

@ -151,6 +151,7 @@ template <class... Types>
#include <__config>
#include <__functional_base>
#include <__functional/unwrap_ref.h>
#include <__utility/forward.h>
#include <__utility/move.h>
#include <__tuple>

1670
libcxx/include/utility
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File diff suppressed because it is too large Load Diff

2
libcxx/test/libcxx/utilities/utility/pairs/pairs.pair/pair.tuple_element.fail.cpp
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@ -19,7 +19,7 @@ int main(int, char**)
{
typedef std::pair<int, double> P;
std::tuple_element<2, P>::type foo; // expected-note {{requested here}}
// expected-error-re@utility:* {{static_assert failed{{( due to requirement '2U[L]{0,2} < 2')?}} "Index out of bounds in std::tuple_element<std::pair<T1, T2>>"}}
// expected-error-re@*:* {{static_assert failed{{( due to requirement '2U[L]{0,2} < 2')?}} "Index out of bounds in std::tuple_element<std::pair<T1, T2>>"}}
}
return 0;

4
libcxx/test/std/utilities/intseq/intseq.make/make_integer_seq.fail.cpp
View File

@ -29,9 +29,9 @@ int main(int, char**)
// std::make_integer_sequence is implemented using a compiler builtin if available.
// this builtin has different diagnostic messages than the fallback implementation.
#if TEST_HAS_BUILTIN(__make_integer_seq) && !defined(_LIBCPP_TESTING_FALLBACK_MAKE_INTEGER_SEQUENCE)
MakeSeqT i; // expected-error@utility:* {{integer sequences must have non-negative sequence length}}
MakeSeqT i; // expected-error@*:* {{integer sequences must have non-negative sequence length}}
#else
MakeSeqT i; // expected-error@utility:* {{static_assert failed "std::make_integer_sequence must have a non-negative sequence length"}}
MakeSeqT i; // expected-error@*:* {{static_assert failed "std::make_integer_sequence must have a non-negative sequence length"}}
#endif
return 0;

2
libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.hash/enabled_hash.pass.cpp
View File

@ -15,6 +15,8 @@
#include <memory>
#include <functional>
#include "poisoned_hash_helper.h"
#include "test_macros.h"

2
libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.hash/hash_shared_ptr.pass.cpp
View File

@ -17,7 +17,9 @@
// };
#include <memory>
#include <cassert>
#include <functional>
#include "test_macros.h"

2
libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.hash/hash_unique_ptr.pass.cpp
View File

@ -17,7 +17,9 @@
// };
#include <memory>
#include <cassert>
#include <functional>
#include "test_macros.h"

2
libcxx/test/std/utilities/type.index/type.index.hash/enabled_hash.pass.cpp
View File

@ -15,6 +15,8 @@
#include <typeindex>
#include <functional>
#include "poisoned_hash_helper.h"
#include "test_macros.h"

4
libcxx/test/std/utilities/utility/pairs/pair.astuple/tuple_element.fail.cpp
View File

@ -17,7 +17,7 @@
int main(int, char**)
{
typedef std::pair<int, short> T;
std::tuple_element<2, T>::type foo; // expected-error@utility:* {{Index out of bounds in std::tuple_element<std::pair<T1, T2>>}}
std::tuple_element<2, T>::type foo; // expected-error@*:* {{Index out of bounds in std::tuple_element<std::pair<T1, T2>>}}
return 0;
return 0;
}

1
libcxx/test/std/utilities/utility/utility.underlying/to_underlying.pass.cpp
View File

@ -14,6 +14,7 @@
#include <utility>
#include <cassert>
#include <cstdint>
#include <limits>
#include "test_macros.h"

2
libcxx/test/support/poisoned_hash_helper.h
View File

@ -9,9 +9,9 @@
#ifndef SUPPORT_POISONED_HASH_HELPER_H
#define SUPPORT_POISONED_HASH_HELPER_H
#include <__utility/move.h> // TODO: replace with <utility> when std::hash is moved out of the header
#include <cassert>
#include <type_traits>
#include <utility>
#include "test_macros.h"
#include "test_workarounds.h"