1 // Copyright (C) 2017-2018 Free Software Foundation, Inc. 2 // 3 // This file is part of the GNU ISO C++ Library. This library is free 4 // software; you can redistribute it and/or modify it under the 5 // terms of the GNU General Public License as published by the 6 // Free Software Foundation; either version 3, or (at your option) 7 // any later version. 8 9 // This library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU General Public License for more details. 13 14 // You should have received a copy of the GNU General Public License along 15 // with this library; see the file COPYING3. If not see 16 // <http://www.gnu.org/licenses/>. 17 18 // { dg-do run { target c++11 } } 19 20 // PR libstdc++/81381 21 22 #include <memory> 23 #include <sstream> 24 #include <testsuite_allocator.h> 25 26 using Alloc = __gnu_test::uneq_allocator<char>; 27 using String = std::basic_string<char, std::char_traits<char>, Alloc>; 28 29 struct SB : std::basic_stringbuf<char, std::char_traits<char>, Alloc> 30 { SBSB31 SB(const String& s) : basic_stringbuf(s) { } 32 33 using basic_stringbuf::overflow; 34 }; 35 main()36int main() 37 { 38 String s(Alloc(23)); 39 SB b(s); 40 b.overflow('a'); 41 VERIFY( b.str().get_allocator() == s.get_allocator() ); 42 } 43