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1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP___ITERATOR_ERASE_IF_CONTAINER_H11#define _LIBCPP___ITERATOR_ERASE_IF_CONTAINER_H12 13#include <__config>14 15#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)16# pragma GCC system_header17#endif18 19_LIBCPP_PUSH_MACROS20#include <__undef_macros>21 22_LIBCPP_BEGIN_NAMESPACE_STD23 24template <class _Container, class _Predicate>25_LIBCPP_HIDE_FROM_ABI typename _Container::size_type __libcpp_erase_if_container(_Container& __c, _Predicate& __pred) {26 typename _Container::size_type __old_size = __c.size();27 28 const typename _Container::iterator __last = __c.end();29 for (typename _Container::iterator __iter = __c.begin(); __iter != __last;) {30 if (__pred(*__iter))31 __iter = __c.erase(__iter);32 else33 ++__iter;34 }35 36 return __old_size - __c.size();37}38 39_LIBCPP_END_NAMESPACE_STD40 41_LIBCPP_POP_MACROS42 43#endif // _LIBCPP___ITERATOR_ERASE_IF_CONTAINER_H44