forked from OSchip/llvm-project
53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef _LIBCPP___ALGORITHM_CLAMP_H
|
|
#define _LIBCPP___ALGORITHM_CLAMP_H
|
|
|
|
#include <__config>
|
|
#include <__debug>
|
|
#include <__algorithm/comp.h>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
#pragma GCC system_header
|
|
#endif
|
|
|
|
_LIBCPP_PUSH_MACROS
|
|
#include <__undef_macros>
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
#if _LIBCPP_STD_VER > 14
|
|
// clamp
|
|
template<class _Tp, class _Compare>
|
|
_LIBCPP_NODISCARD_EXT inline
|
|
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
const _Tp&
|
|
clamp(const _Tp& __v, const _Tp& __lo, const _Tp& __hi, _Compare __comp)
|
|
{
|
|
_LIBCPP_ASSERT(!__comp(__hi, __lo), "Bad bounds passed to std::clamp");
|
|
return __comp(__v, __lo) ? __lo : __comp(__hi, __v) ? __hi : __v;
|
|
|
|
}
|
|
|
|
template<class _Tp>
|
|
_LIBCPP_NODISCARD_EXT inline
|
|
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
const _Tp&
|
|
clamp(const _Tp& __v, const _Tp& __lo, const _Tp& __hi)
|
|
{
|
|
return _VSTD::clamp(__v, __lo, __hi, __less<_Tp>());
|
|
}
|
|
#endif
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
_LIBCPP_POP_MACROS
|
|
|
|
#endif // _LIBCPP___ALGORITHM_CLAMP_H
|