forked from OSchip/llvm-project
187 lines
5.1 KiB
C++
187 lines
5.1 KiB
C++
// -*- C++ -*-
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//===-------------------------- concepts ----------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_CONCEPTS
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#define _LIBCPP_CONCEPTS
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/*
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concepts synopsis
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namespace std {
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// [concepts.lang], language-related concepts
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// [concept.same], concept same_as
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template<class T, class U>
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concept same_as = see below;
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// [concept.derived], concept derived_from
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template<class Derived, class Base>
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concept derived_from = see below;
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// [concept.convertible], concept convertible_to
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template<class From, class To>
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concept convertible_to = see below;
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// [concept.commonref], concept common_reference_with
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template<class T, class U>
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concept common_reference_with = see below;
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// [concept.common], concept common_with
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template<class T, class U>
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concept common_with = see below;
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// [concepts.arithmetic], arithmetic concepts
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template<class T>
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concept integral = see below;
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template<class T>
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concept signed_integral = see below;
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template<class T>
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concept unsigned_integral = see below;
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template<class T>
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concept floating_point = see below;
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// [concept.assignable], concept assignable_from
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template<class LHS, class RHS>
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concept assignable_from = see below;
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// [concept.swappable], concept swappable
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namespace ranges {
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inline namespace unspecified {
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inline constexpr unspecified swap = unspecified;
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}
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}
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template<class T>
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concept swappable = see below;
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template<class T, class U>
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concept swappable_with = see below;
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// [concept.destructible], concept destructible
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template<class T>
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concept destructible = see below;
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// [concept.constructible], concept constructible_from
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template<class T, class... Args>
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concept constructible_from = see below;
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// [concept.defaultconstructible], concept default_constructible
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template<class T>
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concept default_constructible = see below;
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// [concept.moveconstructible], concept move_constructible
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template<class T>
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concept move_constructible = see below;
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// [concept.copyconstructible], concept copy_constructible
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template<class T>
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concept copy_constructible = see below;
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// [concepts.compare], comparison concepts
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// [concept.boolean], concept boolean
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template<class B>
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concept boolean = see below;
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// [concept.equalitycomparable], concept equality_comparable
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template<class T>
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concept equality_comparable = see below;
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template<class T, class U>
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concept equality_comparable_with = see below;
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// [concept.totallyordered], concept totally_ordered
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template<class T>
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concept totally_ordered = see below;
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template<class T, class U>
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concept totally_ordered_with = see below;
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// [concepts.object], object concepts
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template<class T>
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concept movable = see below;
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template<class T>
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concept copyable = see below;
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template<class T>
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concept semiregular = see below;
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template<class T>
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concept regular = see below;
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// [concepts.callable], callable concepts
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// [concept.invocable], concept invocable
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template<class F, class... Args>
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concept invocable = see below;
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// [concept.regularinvocable], concept regular_invocable
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template<class F, class... Args>
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concept regular_invocable = see below;
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// [concept.predicate], concept predicate
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template<class F, class... Args>
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concept predicate = see below;
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// [concept.relation], concept relation
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template<class R, class T, class U>
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concept relation = see below;
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// [concept.equiv], concept equivalence_relation
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template<class R, class T, class U>
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concept equivalence_relation = see below;
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// [concept.strictweakorder], concept strict_weak_order
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template<class R, class T, class U>
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concept strict_weak_order = see below;
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}
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*/
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#include <__config>
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#include <type_traits>
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#include <version>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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_LIBCPP_BEGIN_NAMESPACE_STD
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#if _LIBCPP_STD_VER > 17 && defined(__cpp_concepts) && __cpp_concepts >= 201811L
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// [concept.same]
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template<class _Tp, class _Up>
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concept __same_as_impl = _VSTD::_IsSame<_Tp, _Up>::value;
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template<class _Tp, class _Up>
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concept same_as = __same_as_impl<_Tp, _Up> && __same_as_impl<_Up, _Tp>;
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// [concept.destructible]
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template<class _Tp>
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concept destructible = _VSTD::is_nothrow_destructible_v<_Tp>;
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// [concept.constructible]
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template<class _Tp, class... _Args>
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concept constructible_from =
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destructible<_Tp> && _VSTD::is_constructible_v<_Tp, _Args...>;
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// [concept.default.init]
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template<class _Tp>
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concept __default_initializable = requires { ::new _Tp; };
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template<class _Tp>
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concept default_initializable = constructible_from<_Tp> &&
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requires { _Tp{}; } && __default_initializable<_Tp>;
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#endif //_LIBCPP_STD_VER > 17 && defined(__cpp_concepts) && __cpp_concepts >= 201811L
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_LIBCPP_END_NAMESPACE_STD
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_LIBCPP_POP_MACROS
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#endif // _LIBCPP_CONCEPTS
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