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_MAX_H 10 #define _LIBCPP___ALGORITHM_MAX_H 11 12 #include <__algorithm/comp.h> 13 #include <__algorithm/comp_ref_type.h> 14 #include <__algorithm/max_element.h> 15 #include <__config> 16 #include <initializer_list> 17 18 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 19 # pragma GCC system_header 20 #endif 21 22 _LIBCPP_PUSH_MACROS 23 #include <__undef_macros> 24 25 _LIBCPP_BEGIN_NAMESPACE_STD 26 27 template <class _Tp, class _Compare> 28 _LIBCPP_NODISCARD_EXT inline 29 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 30 const _Tp& 31 max(_LIBCPP_LIFETIMEBOUND const _Tp& __a, _LIBCPP_LIFETIMEBOUND const _Tp& __b, _Compare __comp) 32 { 33 return __comp(__a, __b) ? __b : __a; 34 } 35 36 template <class _Tp> 37 _LIBCPP_NODISCARD_EXT inline 38 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 39 const _Tp& 40 max(_LIBCPP_LIFETIMEBOUND const _Tp& __a, _LIBCPP_LIFETIMEBOUND const _Tp& __b) 41 { 42 return _VSTD::max(__a, __b, __less<>()); 43 } 44 45 #ifndef _LIBCPP_CXX03_LANG 46 47 template<class _Tp, class _Compare> 48 _LIBCPP_NODISCARD_EXT inline 49 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 50 _Tp 51 max(initializer_list<_Tp> __t, _Compare __comp) 52 { 53 return *_VSTD::__max_element<__comp_ref_type<_Compare> >(__t.begin(), __t.end(), __comp); 54 } 55 56 template<class _Tp> 57 _LIBCPP_NODISCARD_EXT inline 58 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 59 _Tp 60 max(initializer_list<_Tp> __t) 61 { 62 return *_VSTD::max_element(__t.begin(), __t.end(), __less<>()); 63 } 64 65 #endif // _LIBCPP_CXX03_LANG 66 67 _LIBCPP_END_NAMESPACE_STD 68 69 _LIBCPP_POP_MACROS 70 71 #endif // _LIBCPP___ALGORITHM_MAX_H 72