| 1 | //===----------------------------------------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #ifndef _LIBCPP___ALGORITHM_REMOVE_H |
| 10 | #define _LIBCPP___ALGORITHM_REMOVE_H |
| 11 | |
| 12 | #include <__algorithm/find.h> |
| 13 | #include <__algorithm/find_if.h> |
| 14 | #include <__config> |
| 15 | #include <__utility/move.h> |
| 16 | |
| 17 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 18 | # pragma GCC system_header |
| 19 | #endif |
| 20 | |
| 21 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 22 | |
| 23 | template <class _ForwardIterator, class _Tp> |
| 24 | _LIBCPP_NODISCARD_EXT _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator |
| 25 | remove(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value) |
| 26 | { |
| 27 | __first = _VSTD::find(__first, __last, __value); |
| 28 | if (__first != __last) |
| 29 | { |
| 30 | _ForwardIterator __i = __first; |
| 31 | while (++__i != __last) |
| 32 | { |
| 33 | if (!(*__i == __value)) |
| 34 | { |
| 35 | *__first = _VSTD::move(*__i); |
| 36 | ++__first; |
| 37 | } |
| 38 | } |
| 39 | } |
| 40 | return __first; |
| 41 | } |
| 42 | |
| 43 | _LIBCPP_END_NAMESPACE_STD |
| 44 | |
| 45 | #endif // _LIBCPP___ALGORITHM_REMOVE_H |
| 46 |