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 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