mirrors/llvm-project
0
0
Fork 0
mirror of https://github.com/llvm/llvm-project.git synced 2025-05-01 10:16:09 +00:00
Code Issues Projects Releases Wiki Activity
llvm-project/libcxx/include/__cxx03/__functional/operations.h
Nikolas Klauser e78f53d1e8
Reapply "[libc++][C++03] Copy the LLVM 19 headers (#108999)" (#112127) 
This reverts commit 68c04b0ae62d8431d72d8b47fc13008002ee4387.

This disables the IWYU mapping that caused the failure, since
the headers aren't reachable for now.

This is the first part of the "Freezing C++03 headers" proposal
explained in
https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc/77319/58.

This patch mechanically copies the headers as of the LLVM 19.1 release
into a subdirectory of libc++ so that we can start using these headers
when building in C++03 mode. We are going to be backporting important
changes to that copy of the headers until the LLVM 21 release. After the
LLVM 21 release, only critical bugfixes will be fixed in the C++03 copy
of the headers.

This patch only performs a copy of the headers -- these headers are
still unused by the rest of the codebase.
2024-10-24 00:17:37 +02:00

542 lines
17 KiB
C++
Raw Blame History

// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// 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_OPERATIONS_H
#define _LIBCPP___FUNCTIONAL_OPERATIONS_H
#include <__config>
#include <__functional/binary_function.h>
#include <__functional/unary_function.h>
#include <__type_traits/desugars_to.h>
#include <__utility/forward.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
// Arithmetic operations
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS plus : __binary_function<_Tp, _Tp, _Tp> {
typedef _Tp __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x, const _Tp& __y) const {
return __x + __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(plus);
// The non-transparent std::plus specialization is only equivalent to a raw plus
// operator when we don't perform an implicit conversion when calling it.
template <class _Tp>
inline const bool __desugars_to_v<__plus_tag, plus<_Tp>, _Tp, _Tp> = true;
template <class _Tp, class _Up>
inline const bool __desugars_to_v<__plus_tag, plus<void>, _Tp, _Up> = true;
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS plus<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) + std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) + std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) + std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS minus : __binary_function<_Tp, _Tp, _Tp> {
typedef _Tp __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x, const _Tp& __y) const {
return __x - __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(minus);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS minus<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) - std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) - std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) - std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS multiplies : __binary_function<_Tp, _Tp, _Tp> {
typedef _Tp __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x, const _Tp& __y) const {
return __x * __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(multiplies);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS multiplies<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) * std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) * std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) * std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS divides : __binary_function<_Tp, _Tp, _Tp> {
typedef _Tp __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x, const _Tp& __y) const {
return __x / __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(divides);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS divides<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) / std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) / std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) / std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS modulus : __binary_function<_Tp, _Tp, _Tp> {
typedef _Tp __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x, const _Tp& __y) const {
return __x % __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(modulus);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS modulus<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) % std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) % std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) % std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS negate : __unary_function<_Tp, _Tp> {
typedef _Tp __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return -__x; }
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(negate);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS negate<void> {
template <class _Tp>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_Tp&& __x) const
noexcept(noexcept(-std::forward<_Tp>(__x))) //
-> decltype(-std::forward<_Tp>(__x)) {
return -std::forward<_Tp>(__x);
}
typedef void is_transparent;
};
#endif
// Bitwise operations
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS bit_and : __binary_function<_Tp, _Tp, _Tp> {
typedef _Tp __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x, const _Tp& __y) const {
return __x & __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(bit_and);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS bit_and<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) &
std::forward<_T2>(__u))) -> decltype(std::forward<_T1>(__t) & std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) & std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
struct _LIBCPP_TEMPLATE_VIS bit_not : __unary_function<_Tp, _Tp> {
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return ~__x; }
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(bit_not);
template <>
struct _LIBCPP_TEMPLATE_VIS bit_not<void> {
template <class _Tp>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_Tp&& __x) const
noexcept(noexcept(~std::forward<_Tp>(__x))) //
-> decltype(~std::forward<_Tp>(__x)) {
return ~std::forward<_Tp>(__x);
}
typedef void is_transparent;
};
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS bit_or : __binary_function<_Tp, _Tp, _Tp> {
typedef _Tp __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x, const _Tp& __y) const {
return __x | __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(bit_or);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS bit_or<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) | std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) | std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) | std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS bit_xor : __binary_function<_Tp, _Tp, _Tp> {
typedef _Tp __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x, const _Tp& __y) const {
return __x ^ __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(bit_xor);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS bit_xor<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) ^ std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) ^ std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) ^ std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
// Comparison operations
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS equal_to : __binary_function<_Tp, _Tp, bool> {
typedef bool __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Tp& __x, const _Tp& __y) const {
return __x == __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(equal_to);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS equal_to<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) == std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) == std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) == std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
// The non-transparent std::equal_to specialization is only equivalent to a raw equality
// comparison when we don't perform an implicit conversion when calling it.
template <class _Tp>
inline const bool __desugars_to_v<__equal_tag, equal_to<_Tp>, _Tp, _Tp> = true;
// In the transparent case, we do not enforce that
template <class _Tp, class _Up>
inline const bool __desugars_to_v<__equal_tag, equal_to<void>, _Tp, _Up> = true;
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS not_equal_to : __binary_function<_Tp, _Tp, bool> {
typedef bool __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Tp& __x, const _Tp& __y) const {
return __x != __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(not_equal_to);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS not_equal_to<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) != std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) != std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) != std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS less : __binary_function<_Tp, _Tp, bool> {
typedef bool __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Tp& __x, const _Tp& __y) const {
return __x < __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(less);
template <class _Tp>
inline const bool __desugars_to_v<__less_tag, less<_Tp>, _Tp, _Tp> = true;
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS less<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) < std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) < std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) < std::forward<_T2>(__u);
}
typedef void is_transparent;
};
template <class _Tp>
inline const bool __desugars_to_v<__less_tag, less<>, _Tp, _Tp> = true;
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS less_equal : __binary_function<_Tp, _Tp, bool> {
typedef bool __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Tp& __x, const _Tp& __y) const {
return __x <= __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(less_equal);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS less_equal<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) <= std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) <= std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) <= std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS greater_equal : __binary_function<_Tp, _Tp, bool> {
typedef bool __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Tp& __x, const _Tp& __y) const {
return __x >= __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(greater_equal);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS greater_equal<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) >=
std::forward<_T2>(__u))) -> decltype(std::forward<_T1>(__t) >= std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) >= std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS greater : __binary_function<_Tp, _Tp, bool> {
typedef bool __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Tp& __x, const _Tp& __y) const {
return __x > __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(greater);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS greater<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) > std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) > std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) > std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
// Logical operations
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS logical_and : __binary_function<_Tp, _Tp, bool> {
typedef bool __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Tp& __x, const _Tp& __y) const {
return __x && __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(logical_and);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS logical_and<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) && std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) && std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) && std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS logical_not : __unary_function<_Tp, bool> {
typedef bool __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Tp& __x) const { return !__x; }
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(logical_not);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS logical_not<void> {
template <class _Tp>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_Tp&& __x) const
noexcept(noexcept(!std::forward<_Tp>(__x))) //
-> decltype(!std::forward<_Tp>(__x)) {
return !std::forward<_Tp>(__x);
}
typedef void is_transparent;
};
#endif
#if _LIBCPP_STD_VER >= 14
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS logical_or : __binary_function<_Tp, _Tp, bool> {
typedef bool __result_type; // used by valarray
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Tp& __x, const _Tp& __y) const {
return __x || __y;
}
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(logical_or);
#if _LIBCPP_STD_VER >= 14
template <>
struct _LIBCPP_TEMPLATE_VIS logical_or<void> {
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI auto operator()(_T1&& __t, _T2&& __u) const
noexcept(noexcept(std::forward<_T1>(__t) || std::forward<_T2>(__u))) //
-> decltype(std::forward<_T1>(__t) || std::forward<_T2>(__u)) {
return std::forward<_T1>(__t) || std::forward<_T2>(__u);
}
typedef void is_transparent;
};
#endif
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___FUNCTIONAL_OPERATIONS_H
Reference in New Issue View Git Blame Copy Permalink