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Diffstat (limited to 'aarch64-none-linux-gnu/include/c++/13.2.1/concepts')
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diff --git a/aarch64-none-linux-gnu/include/c++/13.2.1/concepts b/aarch64-none-linux-gnu/include/c++/13.2.1/concepts new file mode 100644 index 0000000..d77f7e5 --- /dev/null +++ b/aarch64-none-linux-gnu/include/c++/13.2.1/concepts @@ -0,0 +1,381 @@ +// <concepts> -*- C++ -*- + +// Copyright (C) 2019-2023 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// <http://www.gnu.org/licenses/>. + +/** @file include/concepts + * This is a Standard C++ Library header. + * @ingroup concepts + */ + +#ifndef _GLIBCXX_CONCEPTS +#define _GLIBCXX_CONCEPTS 1 + +#if __cplusplus > 201703L && __cpp_concepts >= 201907L + +#pragma GCC system_header + +/** + * @defgroup concepts Concepts + * @ingroup utilities + * + * Concepts for checking type requirements. + */ + +#include <type_traits> + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#define __cpp_lib_concepts 202002L + + // [concepts.lang], language-related concepts + + namespace __detail + { + template<typename _Tp, typename _Up> + concept __same_as = std::is_same_v<_Tp, _Up>; + } // namespace __detail + + /// [concept.same], concept same_as + template<typename _Tp, typename _Up> + concept same_as + = __detail::__same_as<_Tp, _Up> && __detail::__same_as<_Up, _Tp>; + + /// [concept.derived], concept derived_from + template<typename _Derived, typename _Base> + concept derived_from = __is_base_of(_Base, _Derived) + && is_convertible_v<const volatile _Derived*, const volatile _Base*>; + + /// [concept.convertible], concept convertible_to + template<typename _From, typename _To> + concept convertible_to = is_convertible_v<_From, _To> + && requires { static_cast<_To>(std::declval<_From>()); }; + + /// [concept.commonref], concept common_reference_with + template<typename _Tp, typename _Up> + concept common_reference_with + = same_as<common_reference_t<_Tp, _Up>, common_reference_t<_Up, _Tp>> + && convertible_to<_Tp, common_reference_t<_Tp, _Up>> + && convertible_to<_Up, common_reference_t<_Tp, _Up>>; + + /// [concept.common], concept common_with + template<typename _Tp, typename _Up> + concept common_with + = same_as<common_type_t<_Tp, _Up>, common_type_t<_Up, _Tp>> + && requires { + static_cast<common_type_t<_Tp, _Up>>(std::declval<_Tp>()); + static_cast<common_type_t<_Tp, _Up>>(std::declval<_Up>()); + } + && common_reference_with<add_lvalue_reference_t<const _Tp>, + add_lvalue_reference_t<const _Up>> + && common_reference_with<add_lvalue_reference_t<common_type_t<_Tp, _Up>>, + common_reference_t< + add_lvalue_reference_t<const _Tp>, + add_lvalue_reference_t<const _Up>>>; + + // [concepts.arithmetic], arithmetic concepts + + template<typename _Tp> + concept integral = is_integral_v<_Tp>; + + template<typename _Tp> + concept signed_integral = integral<_Tp> && is_signed_v<_Tp>; + + template<typename _Tp> + concept unsigned_integral = integral<_Tp> && !signed_integral<_Tp>; + + template<typename _Tp> + concept floating_point = is_floating_point_v<_Tp>; + + namespace __detail + { + template<typename _Tp> + using __cref = const remove_reference_t<_Tp>&; + + template<typename _Tp> + concept __class_or_enum + = is_class_v<_Tp> || is_union_v<_Tp> || is_enum_v<_Tp>; + + template<typename _Tp> + constexpr bool __destructible_impl = false; + template<typename _Tp> + requires requires(_Tp& __t) { { __t.~_Tp() } noexcept; } + constexpr bool __destructible_impl<_Tp> = true; + + template<typename _Tp> + constexpr bool __destructible = __destructible_impl<_Tp>; + template<typename _Tp> + constexpr bool __destructible<_Tp&> = true; + template<typename _Tp> + constexpr bool __destructible<_Tp&&> = true; + template<typename _Tp, size_t _Nm> + constexpr bool __destructible<_Tp[_Nm]> = __destructible<_Tp>; + + } // namespace __detail + + /// [concept.assignable], concept assignable_from + template<typename _Lhs, typename _Rhs> + concept assignable_from + = is_lvalue_reference_v<_Lhs> + && common_reference_with<__detail::__cref<_Lhs>, __detail::__cref<_Rhs>> + && requires(_Lhs __lhs, _Rhs&& __rhs) { + { __lhs = static_cast<_Rhs&&>(__rhs) } -> same_as<_Lhs>; + }; + + /// [concept.destructible], concept destructible + template<typename _Tp> + concept destructible = __detail::__destructible<_Tp>; + + /// [concept.constructible], concept constructible_from + template<typename _Tp, typename... _Args> + concept constructible_from + = destructible<_Tp> && is_constructible_v<_Tp, _Args...>; + + /// [concept.defaultinitializable], concept default_initializable + template<typename _Tp> + concept default_initializable = constructible_from<_Tp> + && requires + { + _Tp{}; + (void) ::new _Tp; + }; + + /// [concept.moveconstructible], concept move_constructible + template<typename _Tp> + concept move_constructible + = constructible_from<_Tp, _Tp> && convertible_to<_Tp, _Tp>; + + /// [concept.copyconstructible], concept copy_constructible + template<typename _Tp> + concept copy_constructible + = move_constructible<_Tp> + && constructible_from<_Tp, _Tp&> && convertible_to<_Tp&, _Tp> + && constructible_from<_Tp, const _Tp&> && convertible_to<const _Tp&, _Tp> + && constructible_from<_Tp, const _Tp> && convertible_to<const _Tp, _Tp>; + + // [concept.swappable], concept swappable + + namespace ranges + { + namespace __cust_swap + { + template<typename _Tp> void swap(_Tp&, _Tp&) = delete; + + template<typename _Tp, typename _Up> + concept __adl_swap + = (__detail::__class_or_enum<remove_reference_t<_Tp>> + || __detail::__class_or_enum<remove_reference_t<_Up>>) + && requires(_Tp&& __t, _Up&& __u) { + swap(static_cast<_Tp&&>(__t), static_cast<_Up&&>(__u)); + }; + + struct _Swap + { + private: + template<typename _Tp, typename _Up> + static constexpr bool + _S_noexcept() + { + if constexpr (__adl_swap<_Tp, _Up>) + return noexcept(swap(std::declval<_Tp>(), std::declval<_Up>())); + else + return is_nothrow_move_constructible_v<remove_reference_t<_Tp>> + && is_nothrow_move_assignable_v<remove_reference_t<_Tp>>; + } + + public: + template<typename _Tp, typename _Up> + requires __adl_swap<_Tp, _Up> + || (same_as<_Tp, _Up> && is_lvalue_reference_v<_Tp> + && move_constructible<remove_reference_t<_Tp>> + && assignable_from<_Tp, remove_reference_t<_Tp>>) + constexpr void + operator()(_Tp&& __t, _Up&& __u) const + noexcept(_S_noexcept<_Tp, _Up>()) + { + if constexpr (__adl_swap<_Tp, _Up>) + swap(static_cast<_Tp&&>(__t), static_cast<_Up&&>(__u)); + else + { + auto __tmp = static_cast<remove_reference_t<_Tp>&&>(__t); + __t = static_cast<remove_reference_t<_Tp>&&>(__u); + __u = static_cast<remove_reference_t<_Tp>&&>(__tmp); + } + } + + template<typename _Tp, typename _Up, size_t _Num> + requires requires(const _Swap& __swap, _Tp& __e1, _Up& __e2) { + __swap(__e1, __e2); + } + constexpr void + operator()(_Tp (&__e1)[_Num], _Up (&__e2)[_Num]) const + noexcept(noexcept(std::declval<const _Swap&>()(*__e1, *__e2))) + { + for (size_t __n = 0; __n < _Num; ++__n) + (*this)(__e1[__n], __e2[__n]); + } + }; + } // namespace __cust_swap + + inline namespace __cust + { + inline constexpr __cust_swap::_Swap swap{}; + } // inline namespace __cust + } // namespace ranges + + template<typename _Tp> + concept swappable + = requires(_Tp& __a, _Tp& __b) { ranges::swap(__a, __b); }; + + template<typename _Tp, typename _Up> + concept swappable_with = common_reference_with<_Tp, _Up> + && requires(_Tp&& __t, _Up&& __u) { + ranges::swap(static_cast<_Tp&&>(__t), static_cast<_Tp&&>(__t)); + ranges::swap(static_cast<_Up&&>(__u), static_cast<_Up&&>(__u)); + ranges::swap(static_cast<_Tp&&>(__t), static_cast<_Up&&>(__u)); + ranges::swap(static_cast<_Up&&>(__u), static_cast<_Tp&&>(__t)); + }; + + // [concepts.object], Object concepts + + template<typename _Tp> + concept movable = is_object_v<_Tp> && move_constructible<_Tp> + && assignable_from<_Tp&, _Tp> && swappable<_Tp>; + + template<typename _Tp> + concept copyable = copy_constructible<_Tp> && movable<_Tp> + && assignable_from<_Tp&, _Tp&> && assignable_from<_Tp&, const _Tp&> + && assignable_from<_Tp&, const _Tp>; + + template<typename _Tp> + concept semiregular = copyable<_Tp> && default_initializable<_Tp>; + + // [concepts.compare], comparison concepts + + // [concept.booleantestable], Boolean testability + namespace __detail + { + template<typename _Tp> + concept __boolean_testable_impl = convertible_to<_Tp, bool>; + + template<typename _Tp> + concept __boolean_testable + = __boolean_testable_impl<_Tp> + && requires(_Tp&& __t) + { { !static_cast<_Tp&&>(__t) } -> __boolean_testable_impl; }; + } // namespace __detail + + // [concept.equalitycomparable], concept equality_comparable + + namespace __detail + { + template<typename _Tp, typename _Up> + concept __weakly_eq_cmp_with + = requires(__detail::__cref<_Tp> __t, __detail::__cref<_Up> __u) { + { __t == __u } -> __boolean_testable; + { __t != __u } -> __boolean_testable; + { __u == __t } -> __boolean_testable; + { __u != __t } -> __boolean_testable; + }; + } // namespace __detail + + template<typename _Tp> + concept equality_comparable = __detail::__weakly_eq_cmp_with<_Tp, _Tp>; + + template<typename _Tp, typename _Up> + concept equality_comparable_with + = equality_comparable<_Tp> && equality_comparable<_Up> + && common_reference_with<__detail::__cref<_Tp>, __detail::__cref<_Up>> + && equality_comparable<common_reference_t<__detail::__cref<_Tp>, + __detail::__cref<_Up>>> + && __detail::__weakly_eq_cmp_with<_Tp, _Up>; + + namespace __detail + { + template<typename _Tp, typename _Up> + concept __partially_ordered_with + = requires(const remove_reference_t<_Tp>& __t, + const remove_reference_t<_Up>& __u) { + { __t < __u } -> __boolean_testable; + { __t > __u } -> __boolean_testable; + { __t <= __u } -> __boolean_testable; + { __t >= __u } -> __boolean_testable; + { __u < __t } -> __boolean_testable; + { __u > __t } -> __boolean_testable; + { __u <= __t } -> __boolean_testable; + { __u >= __t } -> __boolean_testable; + }; + } // namespace __detail + + // [concept.totallyordered], concept totally_ordered + template<typename _Tp> + concept totally_ordered + = equality_comparable<_Tp> + && __detail::__partially_ordered_with<_Tp, _Tp>; + + template<typename _Tp, typename _Up> + concept totally_ordered_with + = totally_ordered<_Tp> && totally_ordered<_Up> + && equality_comparable_with<_Tp, _Up> + && totally_ordered<common_reference_t<__detail::__cref<_Tp>, + __detail::__cref<_Up>>> + && __detail::__partially_ordered_with<_Tp, _Up>; + + template<typename _Tp> + concept regular = semiregular<_Tp> && equality_comparable<_Tp>; + + // [concepts.callable], callable concepts + + /// [concept.invocable], concept invocable + template<typename _Fn, typename... _Args> + concept invocable = is_invocable_v<_Fn, _Args...>; + + /// [concept.regularinvocable], concept regular_invocable + template<typename _Fn, typename... _Args> + concept regular_invocable = invocable<_Fn, _Args...>; + + /// [concept.predicate], concept predicate + template<typename _Fn, typename... _Args> + concept predicate = regular_invocable<_Fn, _Args...> + && __detail::__boolean_testable<invoke_result_t<_Fn, _Args...>>; + + /// [concept.relation], concept relation + template<typename _Rel, typename _Tp, typename _Up> + concept relation + = predicate<_Rel, _Tp, _Tp> && predicate<_Rel, _Up, _Up> + && predicate<_Rel, _Tp, _Up> && predicate<_Rel, _Up, _Tp>; + + /// [concept.equiv], concept equivalence_relation + template<typename _Rel, typename _Tp, typename _Up> + concept equivalence_relation = relation<_Rel, _Tp, _Up>; + + /// [concept.strictweakorder], concept strict_weak_order + template<typename _Rel, typename _Tp, typename _Up> + concept strict_weak_order = relation<_Rel, _Tp, _Up>; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace +#endif // C++2a + +#endif /* _GLIBCXX_CONCEPTS */ |