1// -*- C++ -*- 2//===-------------------------- concepts ----------------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef _LIBCPP_CONCEPTS 11#define _LIBCPP_CONCEPTS 12 13/* 14 concepts synopsis 15namespace std { 16 // [concepts.lang], language-related concepts 17 // [concept.same], concept same_as 18 template<class T, class U> 19 concept same_as = see below; 20 21 // [concept.derived], concept derived_from 22 template<class Derived, class Base> 23 concept derived_from = see below; 24 25 // [concept.convertible], concept convertible_to 26 template<class From, class To> 27 concept convertible_to = see below; 28 29 // [concept.commonref], concept common_reference_with 30 template<class T, class U> 31 concept common_reference_with = see below; 32 33 // [concept.common], concept common_with 34 template<class T, class U> 35 concept common_with = see below; 36 37 // [concepts.arithmetic], arithmetic concepts 38 template<class T> 39 concept integral = see below; 40 template<class T> 41 concept signed_integral = see below; 42 template<class T> 43 concept unsigned_integral = see below; 44 template<class T> 45 concept floating_point = see below; 46 47 // [concept.assignable], concept assignable_from 48 template<class LHS, class RHS> 49 concept assignable_from = see below; 50 51 // [concept.swappable], concept swappable 52 namespace ranges { 53 inline namespace unspecified { 54 inline constexpr unspecified swap = unspecified; 55 } 56 } 57 template<class T> 58 concept swappable = see below; 59 template<class T, class U> 60 concept swappable_with = see below; 61 62 // [concept.destructible], concept destructible 63 template<class T> 64 concept destructible = see below; 65 66 // [concept.constructible], concept constructible_from 67 template<class T, class... Args> 68 concept constructible_from = see below; 69 70 // [concept.defaultconstructible], concept default_constructible 71 template<class T> 72 concept default_constructible = see below; 73 74 // [concept.moveconstructible], concept move_constructible 75 template<class T> 76 concept move_constructible = see below; 77 78 // [concept.copyconstructible], concept copy_constructible 79 template<class T> 80 concept copy_constructible = see below; 81 82 // [concepts.compare], comparison concepts 83 // [concept.boolean], concept boolean 84 template<class B> 85 concept boolean = see below; 86 87 // [concept.equalitycomparable], concept equality_comparable 88 template<class T> 89 concept equality_comparable = see below; 90 template<class T, class U> 91 concept equality_comparable_with = see below; 92 93 // [concept.totallyordered], concept totally_ordered 94 template<class T> 95 concept totally_ordered = see below; 96 template<class T, class U> 97 concept totally_ordered_with = see below; 98 99 // [concepts.object], object concepts 100 template<class T> 101 concept movable = see below; 102 template<class T> 103 concept copyable = see below; 104 template<class T> 105 concept semiregular = see below; 106 template<class T> 107 concept regular = see below; 108 109 // [concepts.callable], callable concepts 110 // [concept.invocable], concept invocable 111 template<class F, class... Args> 112 concept invocable = see below; 113 114 // [concept.regularinvocable], concept regular_invocable 115 template<class F, class... Args> 116 concept regular_invocable = see below; 117 118 // [concept.predicate], concept predicate 119 template<class F, class... Args> 120 concept predicate = see below; 121 122 // [concept.relation], concept relation 123 template<class R, class T, class U> 124 concept relation = see below; 125 126 // [concept.equiv], concept equivalence_relation 127 template<class R, class T, class U> 128 concept equivalence_relation = see below; 129 130 // [concept.strictweakorder], concept strict_weak_order 131 template<class R, class T, class U> 132 concept strict_weak_order = see below; 133} 134 135*/ 136 137#include <__config> 138#include <type_traits> 139#include <version> 140 141#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 142#pragma GCC system_header 143#endif 144 145_LIBCPP_PUSH_MACROS 146#include <__undef_macros> 147 148_LIBCPP_BEGIN_NAMESPACE_STD 149 150#if _LIBCPP_STD_VER > 17 && defined(__cpp_concepts) && __cpp_concepts >= 201811L 151 152// [concept.same] 153 154template<class _Tp, class _Up> 155concept __same_as_impl = _VSTD::_IsSame<_Tp, _Up>::value; 156 157template<class _Tp, class _Up> 158concept same_as = __same_as_impl<_Tp, _Up> && __same_as_impl<_Up, _Tp>; 159 160#endif //_LIBCPP_STD_VER > 17 && defined(__cpp_concepts) && __cpp_concepts >= 201811L 161 162_LIBCPP_END_NAMESPACE_STD 163 164_LIBCPP_POP_MACROS 165 166#endif // _LIBCPP_CONCEPTS 167