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 14 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 15 #pragma GCC system_header 16 #endif 17 18 _LIBCPP_BEGIN_NAMESPACE_STD 19 20 // I'd like to replace these with _VSTD::equal_to<void>, but can't because: 21 // * That only works with C++14 and later, and 22 // * We haven't included <functional> here. 23 template <class _T1, class _T2 = _T1> 24 struct __equal_to 25 { 26 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 bool operator()(const _T1& __x, const _T1& __y) const {return __x == __y;} 27 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 bool operator()(const _T1& __x, const _T2& __y) const {return __x == __y;} 28 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 bool operator()(const _T2& __x, const _T1& __y) const {return __x == __y;} 29 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 bool operator()(const _T2& __x, const _T2& __y) const {return __x == __y;} 30 }; 31 32 template <class _T1> 33 struct __equal_to<_T1, _T1> 34 { 35 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 36 bool operator()(const _T1& __x, const _T1& __y) const {return __x == __y;} 37 }; 38 39 template <class _T1> 40 struct __equal_to<const _T1, _T1> 41 { 42 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 43 bool operator()(const _T1& __x, const _T1& __y) const {return __x == __y;} 44 }; 45 46 template <class _T1> 47 struct __equal_to<_T1, const _T1> 48 { 49 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 50 bool operator()(const _T1& __x, const _T1& __y) const {return __x == __y;} 51 }; 52 53 template <class _T1, class _T2 = _T1> 54 struct __less 55 { 56 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 57 bool operator()(const _T1& __x, const _T1& __y) const {return __x < __y;} 58 59 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 60 bool operator()(const _T1& __x, const _T2& __y) const {return __x < __y;} 61 62 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 63 bool operator()(const _T2& __x, const _T1& __y) const {return __x < __y;} 64 65 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 66 bool operator()(const _T2& __x, const _T2& __y) const {return __x < __y;} 67 }; 68 69 template <class _T1> 70 struct __less<_T1, _T1> 71 { 72 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 73 bool operator()(const _T1& __x, const _T1& __y) const {return __x < __y;} 74 }; 75 76 template <class _T1> 77 struct __less<const _T1, _T1> 78 { 79 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 80 bool operator()(const _T1& __x, const _T1& __y) const {return __x < __y;} 81 }; 82 83 template <class _T1> 84 struct __less<_T1, const _T1> 85 { 86 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 87 bool operator()(const _T1& __x, const _T1& __y) const {return __x < __y;} 88 }; 89 90 _LIBCPP_END_NAMESPACE_STD 91 92 #endif // _LIBCPP___ALGORITHM_COMP_H 93