xref: /freebsd-src/contrib/llvm-project/libcxx/include/__algorithm/max.h (revision 0fca6ea1d4eea4c934cfff25ac9ee8ad6fe95583)
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>
28*0fca6ea1SDimitry Andric _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Tp&
29cb14a3feSDimitry Andric max(_LIBCPP_LIFETIMEBOUND const _Tp& __a, _LIBCPP_LIFETIMEBOUND const _Tp& __b, _Compare __comp) {
30fe6060f1SDimitry Andric   return __comp(__a, __b) ? __b : __a;
31fe6060f1SDimitry Andric }
32fe6060f1SDimitry Andric 
33fe6060f1SDimitry Andric template <class _Tp>
34*0fca6ea1SDimitry Andric _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Tp&
35cb14a3feSDimitry Andric max(_LIBCPP_LIFETIMEBOUND const _Tp& __a, _LIBCPP_LIFETIMEBOUND const _Tp& __b) {
365f757f3fSDimitry Andric   return std::max(__a, __b, __less<>());
37fe6060f1SDimitry Andric }
38fe6060f1SDimitry Andric 
39fe6060f1SDimitry Andric #ifndef _LIBCPP_CXX03_LANG
40fe6060f1SDimitry Andric 
41fe6060f1SDimitry Andric template <class _Tp, class _Compare>
42*0fca6ea1SDimitry Andric _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 _Tp
43cb14a3feSDimitry Andric max(initializer_list<_Tp> __t, _Compare __comp) {
445f757f3fSDimitry Andric   return *std::__max_element<__comp_ref_type<_Compare> >(__t.begin(), __t.end(), __comp);
45fe6060f1SDimitry Andric }
46fe6060f1SDimitry Andric 
47fe6060f1SDimitry Andric template <class _Tp>
48*0fca6ea1SDimitry Andric _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 _Tp max(initializer_list<_Tp> __t) {
495f757f3fSDimitry Andric   return *std::max_element(__t.begin(), __t.end(), __less<>());
50fe6060f1SDimitry Andric }
51fe6060f1SDimitry Andric 
52fe6060f1SDimitry Andric #endif // _LIBCPP_CXX03_LANG
53fe6060f1SDimitry Andric 
54fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD
55fe6060f1SDimitry Andric 
56fe6060f1SDimitry Andric _LIBCPP_POP_MACROS
57fe6060f1SDimitry Andric 
58fe6060f1SDimitry Andric #endif // _LIBCPP___ALGORITHM_MAX_H
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