mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-26 07:26:09 +00:00
51 lines
1.6 KiB
C++
51 lines
1.6 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>
|
|
#include <__functional/identity.h>
|
|
#include <__type_traits/invoke.h>
|
|
#include <__utility/move.h>
|
|
#include <__utility/pair.h>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
# pragma GCC system_header
|
|
#endif
|
|
|
|
_LIBCPP_PUSH_MACROS
|
|
#include <__undef_macros>
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
template <class _InIter, class _Sent, class _OutIter, class _Proj, class _Pred>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_InIter, _OutIter>
|
|
__copy_if(_InIter __first, _Sent __last, _OutIter __result, _Pred& __pred, _Proj& __proj) {
|
|
for (; __first != __last; ++__first) {
|
|
if (std::__invoke(__pred, std::__invoke(__proj, *__first))) {
|
|
*__result = *__first;
|
|
++__result;
|
|
}
|
|
}
|
|
return std::make_pair(std::move(__first), std::move(__result));
|
|
}
|
|
|
|
template <class _InputIterator, class _OutputIterator, class _Predicate>
|
|
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator
|
|
copy_if(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _Predicate __pred) {
|
|
__identity __proj;
|
|
return std::__copy_if(__first, __last, __result, __pred, __proj).second;
|
|
}
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
_LIBCPP_POP_MACROS
|
|
|
|
#endif // _LIBCPP___ALGORITHM_COPY_IF_H
|