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// Copyright (C) 2017-2020 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-do run { target c++11 } }
// PR libstdc++/81381
#include <memory>
#include <sstream>
#include <testsuite_allocator.h>
using Alloc = __gnu_test::uneq_allocator<char>;
using String = std::basic_string<char, std::char_traits<char>, Alloc>;
struct SB : std::basic_stringbuf<char, std::char_traits<char>, Alloc>
{
SB(const String& s) : basic_stringbuf(s) { }
using basic_stringbuf::overflow;
};
int main()
{
String s(Alloc(23));
SB b(s);
b.overflow('a');
VERIFY( b.str().get_allocator() == s.get_allocator() );
}
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