xref: /freebsd-src/contrib/llvm-project/libcxx/include/__algorithm/min.h (revision fe6060f10f634930ff71b7c50291ddc610da2475)
1*fe6060f1SDimitry Andric //===----------------------------------------------------------------------===//
2*fe6060f1SDimitry Andric //
3*fe6060f1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*fe6060f1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information.
5*fe6060f1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*fe6060f1SDimitry Andric //
7*fe6060f1SDimitry Andric //===----------------------------------------------------------------------===//
8*fe6060f1SDimitry Andric 
9*fe6060f1SDimitry Andric #ifndef _LIBCPP___ALGORITHM_MIN_H
10*fe6060f1SDimitry Andric #define _LIBCPP___ALGORITHM_MIN_H
11*fe6060f1SDimitry Andric 
12*fe6060f1SDimitry Andric #include <__config>
13*fe6060f1SDimitry Andric #include <__algorithm/comp.h>
14*fe6060f1SDimitry Andric #include <__algorithm/min_element.h>
15*fe6060f1SDimitry Andric #include <initializer_list>
16*fe6060f1SDimitry Andric 
17*fe6060f1SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
18*fe6060f1SDimitry Andric #pragma GCC system_header
19*fe6060f1SDimitry Andric #endif
20*fe6060f1SDimitry Andric 
21*fe6060f1SDimitry Andric _LIBCPP_PUSH_MACROS
22*fe6060f1SDimitry Andric #include <__undef_macros>
23*fe6060f1SDimitry Andric 
24*fe6060f1SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD
25*fe6060f1SDimitry Andric 
26*fe6060f1SDimitry Andric template <class _Tp, class _Compare>
27*fe6060f1SDimitry Andric _LIBCPP_NODISCARD_EXT inline
28*fe6060f1SDimitry Andric _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
29*fe6060f1SDimitry Andric const _Tp&
30*fe6060f1SDimitry Andric min(const _Tp& __a, const _Tp& __b, _Compare __comp)
31*fe6060f1SDimitry Andric {
32*fe6060f1SDimitry Andric     return __comp(__b, __a) ? __b : __a;
33*fe6060f1SDimitry Andric }
34*fe6060f1SDimitry Andric 
35*fe6060f1SDimitry Andric template <class _Tp>
36*fe6060f1SDimitry Andric _LIBCPP_NODISCARD_EXT inline
37*fe6060f1SDimitry Andric _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
38*fe6060f1SDimitry Andric const _Tp&
39*fe6060f1SDimitry Andric min(const _Tp& __a, const _Tp& __b)
40*fe6060f1SDimitry Andric {
41*fe6060f1SDimitry Andric     return _VSTD::min(__a, __b, __less<_Tp>());
42*fe6060f1SDimitry Andric }
43*fe6060f1SDimitry Andric 
44*fe6060f1SDimitry Andric #ifndef _LIBCPP_CXX03_LANG
45*fe6060f1SDimitry Andric 
46*fe6060f1SDimitry Andric template<class _Tp, class _Compare>
47*fe6060f1SDimitry Andric _LIBCPP_NODISCARD_EXT inline
48*fe6060f1SDimitry Andric _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
49*fe6060f1SDimitry Andric _Tp
50*fe6060f1SDimitry Andric min(initializer_list<_Tp> __t, _Compare __comp)
51*fe6060f1SDimitry Andric {
52*fe6060f1SDimitry Andric     return *_VSTD::min_element(__t.begin(), __t.end(), __comp);
53*fe6060f1SDimitry Andric }
54*fe6060f1SDimitry Andric 
55*fe6060f1SDimitry Andric template<class _Tp>
56*fe6060f1SDimitry Andric _LIBCPP_NODISCARD_EXT inline
57*fe6060f1SDimitry Andric _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
58*fe6060f1SDimitry Andric _Tp
59*fe6060f1SDimitry Andric min(initializer_list<_Tp> __t)
60*fe6060f1SDimitry Andric {
61*fe6060f1SDimitry Andric     return *_VSTD::min_element(__t.begin(), __t.end(), __less<_Tp>());
62*fe6060f1SDimitry Andric }
63*fe6060f1SDimitry Andric 
64*fe6060f1SDimitry Andric #endif // _LIBCPP_CXX03_LANG
65*fe6060f1SDimitry Andric 
66*fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD
67*fe6060f1SDimitry Andric 
68*fe6060f1SDimitry Andric _LIBCPP_POP_MACROS
69*fe6060f1SDimitry Andric 
70*fe6060f1SDimitry Andric #endif // _LIBCPP___ALGORITHM_MIN_H
71