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_PUSH_MACROS
22 #include <__undef_macros>
23 
24 _LIBCPP_BEGIN_NAMESPACE_STD
25 
26 template <class _ForwardIterator, class _Tp>
27 _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
remove(_ForwardIterator __first,_ForwardIterator __last,const _Tp & __value)28 remove(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value) {
29   __first = std::find(__first, __last, __value);
30   if (__first != __last) {
31     _ForwardIterator __i = __first;
32     while (++__i != __last) {
33       if (!(*__i == __value)) {
34         *__first = std::move(*__i);
35         ++__first;
36       }
37     }
38   }
39   return __first;
40 }
41 
42 _LIBCPP_END_NAMESPACE_STD
43 
44 _LIBCPP_POP_MACROS
45 
46 #endif // _LIBCPP___ALGORITHM_REMOVE_H
47