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 <__config>
13 #include <__algorithm/find.h>
14 #include <__algorithm/find_if.h>
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_CONSTEXPR_AFTER_CXX17 _ForwardIterator
28 remove(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value_)
29 {
30     __first = _VSTD::find(__first, __last, __value_);
31     if (__first != __last)
32     {
33         _ForwardIterator __i = __first;
34         while (++__i != __last)
35         {
36             if (!(*__i == __value_))
37             {
38                 *__first = _VSTD::move(*__i);
39                 ++__first;
40             }
41         }
42     }
43     return __first;
44 }
45 
46 _LIBCPP_END_NAMESPACE_STD
47 
48 _LIBCPP_POP_MACROS
49 
50 #endif // _LIBCPP___ALGORITHM_REMOVE_H
51