1 // Copyright (C) 2016-2018 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 19 #include <set> 20 #include <debug/vector> 21 22 #include <testsuite_hooks.h> 23 24 class container : public __gnu_debug::_Safe_sequence<container> 25 { 26 public: 27 __gnu_cxx::__mutex& get_mutex()28 get_mutex() 29 { return this->_M_get_mutex(); } 30 }; 31 32 int main()33main() 34 { 35 std::set<__gnu_cxx::__mutex*> mutexes; 36 container conts[17]; 37 38 for (int i = 0; i != 16; ++i) 39 VERIFY( mutexes.insert(&conts[i].get_mutex()).second ); 40 41 VERIFY( !mutexes.insert(&conts[16].get_mutex()).second ); 42 } 43