llvm-project/libcxx/include/__algorithm/copy_if.h

40 lines
1.1 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_COPY_IF_H
#define _LIBCPP___ALGORITHM_COPY_IF_H
#include <__config>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template<class _InputIterator, class _OutputIterator, class _Predicate>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
_OutputIterator
copy_if(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, _Predicate __pred)
{
for (; __first != __last; ++__first)
{
if (__pred(*__first))
{
*__result = *__first;
++__result;
}
}
return __result;
}
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ALGORITHM_COPY_IF_H