1753f127fSDimitry Andric //===----------------------------------------------------------------------===// 2753f127fSDimitry Andric // 35f757f3fSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4753f127fSDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5753f127fSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6753f127fSDimitry Andric // 7753f127fSDimitry Andric //===----------------------------------------------------------------------===// 8753f127fSDimitry Andric 9753f127fSDimitry Andric #ifndef _LIBCPP___ALGORITHM_RANGES_EQUAL_RANGE_H 10753f127fSDimitry Andric #define _LIBCPP___ALGORITHM_RANGES_EQUAL_RANGE_H 11753f127fSDimitry Andric 12753f127fSDimitry Andric #include <__algorithm/equal_range.h> 13fcaf7f86SDimitry Andric #include <__algorithm/iterator_operations.h> 14753f127fSDimitry Andric #include <__config> 15753f127fSDimitry Andric #include <__functional/identity.h> 16753f127fSDimitry Andric #include <__functional/invoke.h> 17753f127fSDimitry Andric #include <__functional/ranges_operations.h> 18753f127fSDimitry Andric #include <__iterator/concepts.h> 19753f127fSDimitry Andric #include <__iterator/iterator_traits.h> 20753f127fSDimitry Andric #include <__iterator/projected.h> 21753f127fSDimitry Andric #include <__ranges/access.h> 22753f127fSDimitry Andric #include <__ranges/concepts.h> 23753f127fSDimitry Andric #include <__ranges/dangling.h> 24753f127fSDimitry Andric #include <__ranges/subrange.h> 25753f127fSDimitry Andric #include <__utility/forward.h> 26753f127fSDimitry Andric #include <__utility/move.h> 27bdd1243dSDimitry Andric #include <__utility/pair.h> 28753f127fSDimitry Andric 29753f127fSDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 30753f127fSDimitry Andric # pragma GCC system_header 31753f127fSDimitry Andric #endif 32753f127fSDimitry Andric 33b3edf446SDimitry Andric _LIBCPP_PUSH_MACROS 34b3edf446SDimitry Andric #include <__undef_macros> 35b3edf446SDimitry Andric 3606c3fb27SDimitry Andric #if _LIBCPP_STD_VER >= 20 37753f127fSDimitry Andric 38753f127fSDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 39753f127fSDimitry Andric 40753f127fSDimitry Andric namespace ranges { 41753f127fSDimitry Andric namespace __equal_range { 42753f127fSDimitry Andric 43753f127fSDimitry Andric struct __fn { 4406c3fb27SDimitry Andric template <forward_iterator _Iter, 45fcaf7f86SDimitry Andric sentinel_for<_Iter> _Sent, 46fcaf7f86SDimitry Andric class _Tp, 47fcaf7f86SDimitry Andric class _Proj = identity, 48753f127fSDimitry Andric indirect_strict_weak_order<const _Tp*, projected<_Iter, _Proj>> _Comp = ranges::less> 49*0fca6ea1SDimitry Andric [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr subrange<_Iter> 50fcaf7f86SDimitry Andric operator()(_Iter __first, _Sent __last, const _Tp& __value, _Comp __comp = {}, _Proj __proj = {}) const { 5106c3fb27SDimitry Andric auto __ret = std::__equal_range<_RangeAlgPolicy>(std::move(__first), std::move(__last), __value, __comp, __proj); 52fcaf7f86SDimitry Andric return {std::move(__ret.first), std::move(__ret.second)}; 53753f127fSDimitry Andric } 54753f127fSDimitry Andric 5506c3fb27SDimitry Andric template <forward_range _Range, 56fcaf7f86SDimitry Andric class _Tp, 57fcaf7f86SDimitry Andric class _Proj = identity, 58753f127fSDimitry Andric indirect_strict_weak_order<const _Tp*, projected<iterator_t<_Range>, _Proj>> _Comp = ranges::less> 59*0fca6ea1SDimitry Andric [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr borrowed_subrange_t<_Range> 60fcaf7f86SDimitry Andric operator()(_Range&& __range, const _Tp& __value, _Comp __comp = {}, _Proj __proj = {}) const { 6106c3fb27SDimitry Andric auto __ret = 6206c3fb27SDimitry Andric std::__equal_range<_RangeAlgPolicy>(ranges::begin(__range), ranges::end(__range), __value, __comp, __proj); 63fcaf7f86SDimitry Andric return {std::move(__ret.first), std::move(__ret.second)}; 64753f127fSDimitry Andric } 65753f127fSDimitry Andric }; 66753f127fSDimitry Andric 67753f127fSDimitry Andric } // namespace __equal_range 68753f127fSDimitry Andric 69753f127fSDimitry Andric inline namespace __cpo { 70753f127fSDimitry Andric inline constexpr auto equal_range = __equal_range::__fn{}; 71753f127fSDimitry Andric } // namespace __cpo 72753f127fSDimitry Andric } // namespace ranges 73753f127fSDimitry Andric 74753f127fSDimitry Andric _LIBCPP_END_NAMESPACE_STD 75753f127fSDimitry Andric 7606c3fb27SDimitry Andric #endif // _LIBCPP_STD_VER >= 20 77753f127fSDimitry Andric 78b3edf446SDimitry Andric _LIBCPP_POP_MACROS 79b3edf446SDimitry Andric 80753f127fSDimitry Andric #endif // _LIBCPP___ALGORITHM_RANGES_EQUAL_RANGE_H 81