1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef _LIBCPP___ALGORITHM_COMP_H 10 #define _LIBCPP___ALGORITHM_COMP_H 11 12 #include <__config> 13 #include <__type_traits/integral_constant.h> 14 #include <__type_traits/predicate_traits.h> 15 16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 17 # pragma GCC system_header 18 #endif 19 20 _LIBCPP_BEGIN_NAMESPACE_STD 21 22 struct __equal_to { 23 template <class _T1, class _T2> operator__equal_to24 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 bool operator()(const _T1& __x, const _T2& __y) const { 25 return __x == __y; 26 } 27 }; 28 29 template <class _Lhs, class _Rhs> 30 struct __is_trivial_equality_predicate<__equal_to, _Lhs, _Rhs> : true_type {}; 31 32 template <class _T1, class _T2 = _T1> 33 struct __less 34 { 35 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 36 bool operator()(const _T1& __x, const _T1& __y) const {return __x < __y;} 37 38 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 39 bool operator()(const _T1& __x, const _T2& __y) const {return __x < __y;} 40 41 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 42 bool operator()(const _T2& __x, const _T1& __y) const {return __x < __y;} 43 44 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 45 bool operator()(const _T2& __x, const _T2& __y) const {return __x < __y;} 46 }; 47 48 template <class _T1> 49 struct __less<_T1, _T1> 50 { 51 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 52 bool operator()(const _T1& __x, const _T1& __y) const {return __x < __y;} 53 }; 54 55 template <class _T1> 56 struct __less<const _T1, _T1> 57 { 58 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 59 bool operator()(const _T1& __x, const _T1& __y) const {return __x < __y;} 60 }; 61 62 template <class _T1> 63 struct __less<_T1, const _T1> 64 { 65 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 66 bool operator()(const _T1& __x, const _T1& __y) const {return __x < __y;} 67 }; 68 69 _LIBCPP_END_NAMESPACE_STD 70 71 #endif // _LIBCPP___ALGORITHM_COMP_H 72