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