libstdc++-v3/testsuite/23_containers/vector/debug/mutex_association.cc

   1 // Copyright (C) 2016-2024 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&
  28   get_mutex()
  29   { return this->_M_get_mutex(); }
  30 };
  31
  32 int
  33 main()
  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 }