1fe6060f1SDimitry Andric // -*- C++ -*- 2fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 3fe6060f1SDimitry Andric // 4fe6060f1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5fe6060f1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 6fe6060f1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7fe6060f1SDimitry Andric // 8fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 9fe6060f1SDimitry Andric 10fe6060f1SDimitry Andric #ifndef _LIBCPP___FUNCTIONAL_RANGES_OPERATIONS_H 11fe6060f1SDimitry Andric #define _LIBCPP___FUNCTIONAL_RANGES_OPERATIONS_H 12fe6060f1SDimitry Andric 13fe6060f1SDimitry Andric #include <__config> 14*81ad6265SDimitry Andric #include <__utility/forward.h> 15fe6060f1SDimitry Andric #include <concepts> 16fe6060f1SDimitry Andric 17fe6060f1SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 18fe6060f1SDimitry Andric # pragma GCC system_header 19fe6060f1SDimitry Andric #endif 20fe6060f1SDimitry Andric 21fe6060f1SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 22fe6060f1SDimitry Andric 23*81ad6265SDimitry Andric #if _LIBCPP_STD_VER > 17 24d56accc7SDimitry Andric 25fe6060f1SDimitry Andric namespace ranges { 26fe6060f1SDimitry Andric 27fe6060f1SDimitry Andric struct equal_to { 28fe6060f1SDimitry Andric template <class _Tp, class _Up> 29fe6060f1SDimitry Andric requires equality_comparable_with<_Tp, _Up> 30fe6060f1SDimitry Andric [[nodiscard]] constexpr bool operator()(_Tp &&__t, _Up &&__u) const 31fe6060f1SDimitry Andric noexcept(noexcept(bool(_VSTD::forward<_Tp>(__t) == _VSTD::forward<_Up>(__u)))) { 32fe6060f1SDimitry Andric return _VSTD::forward<_Tp>(__t) == _VSTD::forward<_Up>(__u); 33fe6060f1SDimitry Andric } 34fe6060f1SDimitry Andric 35fe6060f1SDimitry Andric using is_transparent = void; 36fe6060f1SDimitry Andric }; 37fe6060f1SDimitry Andric 38fe6060f1SDimitry Andric struct not_equal_to { 39fe6060f1SDimitry Andric template <class _Tp, class _Up> 40fe6060f1SDimitry Andric requires equality_comparable_with<_Tp, _Up> 41fe6060f1SDimitry Andric [[nodiscard]] constexpr bool operator()(_Tp &&__t, _Up &&__u) const 42fe6060f1SDimitry Andric noexcept(noexcept(bool(!(_VSTD::forward<_Tp>(__t) == _VSTD::forward<_Up>(__u))))) { 43fe6060f1SDimitry Andric return !(_VSTD::forward<_Tp>(__t) == _VSTD::forward<_Up>(__u)); 44fe6060f1SDimitry Andric } 45fe6060f1SDimitry Andric 46fe6060f1SDimitry Andric using is_transparent = void; 47fe6060f1SDimitry Andric }; 48fe6060f1SDimitry Andric 49fe6060f1SDimitry Andric struct less { 50fe6060f1SDimitry Andric template <class _Tp, class _Up> 51fe6060f1SDimitry Andric requires totally_ordered_with<_Tp, _Up> 52fe6060f1SDimitry Andric [[nodiscard]] constexpr bool operator()(_Tp &&__t, _Up &&__u) const 53fe6060f1SDimitry Andric noexcept(noexcept(bool(_VSTD::forward<_Tp>(__t) < _VSTD::forward<_Up>(__u)))) { 54fe6060f1SDimitry Andric return _VSTD::forward<_Tp>(__t) < _VSTD::forward<_Up>(__u); 55fe6060f1SDimitry Andric } 56fe6060f1SDimitry Andric 57fe6060f1SDimitry Andric using is_transparent = void; 58fe6060f1SDimitry Andric }; 59fe6060f1SDimitry Andric 60fe6060f1SDimitry Andric struct less_equal { 61fe6060f1SDimitry Andric template <class _Tp, class _Up> 62fe6060f1SDimitry Andric requires totally_ordered_with<_Tp, _Up> 63fe6060f1SDimitry Andric [[nodiscard]] constexpr bool operator()(_Tp &&__t, _Up &&__u) const 64fe6060f1SDimitry Andric noexcept(noexcept(bool(!(_VSTD::forward<_Up>(__u) < _VSTD::forward<_Tp>(__t))))) { 65fe6060f1SDimitry Andric return !(_VSTD::forward<_Up>(__u) < _VSTD::forward<_Tp>(__t)); 66fe6060f1SDimitry Andric } 67fe6060f1SDimitry Andric 68fe6060f1SDimitry Andric using is_transparent = void; 69fe6060f1SDimitry Andric }; 70fe6060f1SDimitry Andric 71fe6060f1SDimitry Andric struct greater { 72fe6060f1SDimitry Andric template <class _Tp, class _Up> 73fe6060f1SDimitry Andric requires totally_ordered_with<_Tp, _Up> 74fe6060f1SDimitry Andric [[nodiscard]] constexpr bool operator()(_Tp &&__t, _Up &&__u) const 75fe6060f1SDimitry Andric noexcept(noexcept(bool(_VSTD::forward<_Up>(__u) < _VSTD::forward<_Tp>(__t)))) { 76fe6060f1SDimitry Andric return _VSTD::forward<_Up>(__u) < _VSTD::forward<_Tp>(__t); 77fe6060f1SDimitry Andric } 78fe6060f1SDimitry Andric 79fe6060f1SDimitry Andric using is_transparent = void; 80fe6060f1SDimitry Andric }; 81fe6060f1SDimitry Andric 82fe6060f1SDimitry Andric struct greater_equal { 83fe6060f1SDimitry Andric template <class _Tp, class _Up> 84fe6060f1SDimitry Andric requires totally_ordered_with<_Tp, _Up> 85fe6060f1SDimitry Andric [[nodiscard]] constexpr bool operator()(_Tp &&__t, _Up &&__u) const 86fe6060f1SDimitry Andric noexcept(noexcept(bool(!(_VSTD::forward<_Tp>(__t) < _VSTD::forward<_Up>(__u))))) { 87fe6060f1SDimitry Andric return !(_VSTD::forward<_Tp>(__t) < _VSTD::forward<_Up>(__u)); 88fe6060f1SDimitry Andric } 89fe6060f1SDimitry Andric 90fe6060f1SDimitry Andric using is_transparent = void; 91fe6060f1SDimitry Andric }; 92fe6060f1SDimitry Andric 93fe6060f1SDimitry Andric } // namespace ranges 94*81ad6265SDimitry Andric 95*81ad6265SDimitry Andric #endif // _LIBCPP_STD_VER > 17 96fe6060f1SDimitry Andric 97fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD 98fe6060f1SDimitry Andric 99fe6060f1SDimitry Andric #endif // _LIBCPP___FUNCTIONAL_RANGES_OPERATIONS_H 100