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_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
25 remove(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value)
26 {
27     __first = std::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 = std::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