| //===----------------------------------------------------------------------===// |
| // |
| // 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_REMOVE_IF_H |
| #define _LIBCPP___ALGORITHM_REMOVE_IF_H |
| |
| #include <__algorithm/find_if.h> |
| #include <__config> |
| #include <__utility/move.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 _ForwardIterator, class _Predicate> |
| _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator |
| remove_if(_ForwardIterator __first, _ForwardIterator __last, _Predicate __pred) { |
| __first = std::find_if<_ForwardIterator, _Predicate&>(__first, __last, __pred); |
| if (__first != __last) { |
| _ForwardIterator __i = __first; |
| while (++__i != __last) { |
| if (!__pred(*__i)) { |
| *__first = std::move(*__i); |
| ++__first; |
| } |
| } |
| } |
| return __first; |
| } |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| _LIBCPP_POP_MACROS |
| |
| #endif // _LIBCPP___ALGORITHM_REMOVE_IF_H |
