xref: /freebsd-src/contrib/llvm-project/libcxx/include/__algorithm/max.h (revision 5f757f3ff9144b609b3c433dfd370cc6bdc191ad)
1fe6060f1SDimitry Andric //===----------------------------------------------------------------------===//
2fe6060f1SDimitry Andric //
3fe6060f1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4fe6060f1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information.
5fe6060f1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6fe6060f1SDimitry Andric //
7fe6060f1SDimitry Andric //===----------------------------------------------------------------------===//
8fe6060f1SDimitry Andric 
9fe6060f1SDimitry Andric #ifndef _LIBCPP___ALGORITHM_MAX_H
10fe6060f1SDimitry Andric #define _LIBCPP___ALGORITHM_MAX_H
11fe6060f1SDimitry Andric 
12fe6060f1SDimitry Andric #include <__algorithm/comp.h>
135e801ac6SDimitry Andric #include <__algorithm/comp_ref_type.h>
14fe6060f1SDimitry Andric #include <__algorithm/max_element.h>
1504eeddc0SDimitry Andric #include <__config>
16fe6060f1SDimitry Andric #include <initializer_list>
17fe6060f1SDimitry Andric 
18fe6060f1SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
19fe6060f1SDimitry Andric #  pragma GCC system_header
20fe6060f1SDimitry Andric #endif
21fe6060f1SDimitry Andric 
22fe6060f1SDimitry Andric _LIBCPP_PUSH_MACROS
23fe6060f1SDimitry Andric #include <__undef_macros>
24fe6060f1SDimitry Andric 
25fe6060f1SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD
26fe6060f1SDimitry Andric 
27fe6060f1SDimitry Andric template <class _Tp, class _Compare>
28fe6060f1SDimitry Andric _LIBCPP_NODISCARD_EXT inline
29*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
30fe6060f1SDimitry Andric const _Tp&
3106c3fb27SDimitry Andric max(_LIBCPP_LIFETIMEBOUND const _Tp& __a, _LIBCPP_LIFETIMEBOUND const _Tp& __b, _Compare __comp)
32fe6060f1SDimitry Andric {
33fe6060f1SDimitry Andric     return __comp(__a, __b) ? __b : __a;
34fe6060f1SDimitry Andric }
35fe6060f1SDimitry Andric 
36fe6060f1SDimitry Andric template <class _Tp>
37fe6060f1SDimitry Andric _LIBCPP_NODISCARD_EXT inline
38*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
39fe6060f1SDimitry Andric const _Tp&
4006c3fb27SDimitry Andric max(_LIBCPP_LIFETIMEBOUND const _Tp& __a, _LIBCPP_LIFETIMEBOUND const _Tp& __b)
41fe6060f1SDimitry Andric {
42*5f757f3fSDimitry Andric     return std::max(__a, __b, __less<>());
43fe6060f1SDimitry Andric }
44fe6060f1SDimitry Andric 
45fe6060f1SDimitry Andric #ifndef _LIBCPP_CXX03_LANG
46fe6060f1SDimitry Andric 
47fe6060f1SDimitry Andric template<class _Tp, class _Compare>
48fe6060f1SDimitry Andric _LIBCPP_NODISCARD_EXT inline
49*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
50fe6060f1SDimitry Andric _Tp
51fe6060f1SDimitry Andric max(initializer_list<_Tp> __t, _Compare __comp)
52fe6060f1SDimitry Andric {
53*5f757f3fSDimitry Andric     return *std::__max_element<__comp_ref_type<_Compare> >(__t.begin(), __t.end(), __comp);
54fe6060f1SDimitry Andric }
55fe6060f1SDimitry Andric 
56fe6060f1SDimitry Andric template<class _Tp>
57fe6060f1SDimitry Andric _LIBCPP_NODISCARD_EXT inline
58*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
59fe6060f1SDimitry Andric _Tp
60fe6060f1SDimitry Andric max(initializer_list<_Tp> __t)
61fe6060f1SDimitry Andric {
62*5f757f3fSDimitry Andric     return *std::max_element(__t.begin(), __t.end(), __less<>());
63fe6060f1SDimitry Andric }
64fe6060f1SDimitry Andric 
65fe6060f1SDimitry Andric #endif // _LIBCPP_CXX03_LANG
66fe6060f1SDimitry Andric 
67fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD
68fe6060f1SDimitry Andric 
69fe6060f1SDimitry Andric _LIBCPP_POP_MACROS
70fe6060f1SDimitry Andric 
71fe6060f1SDimitry Andric #endif // _LIBCPP___ALGORITHM_MAX_H
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