libstdc++-v3/testsuite/tr1/2_general_utilities/weak_ptr/lock/1.cc

   1 // 2006-09-24  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2006-2013 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // TR1 2.2.4 Template class weak_ptr [tr.util.smartptr.weak]
  21
  22 #include <tr1/memory>
  23 #include <testsuite_tr1.h>
  24
  25 // { dg-do compile }
  26
  27 int main()
  28 {
  29   using __gnu_test::check_ret_type;
  30   using std::tr1::weak_ptr;
  31   using std::tr1::shared_ptr;
  32
  33   weak_ptr<int> wp;
  34   check_ret_type<shared_ptr<int> >(wp.lock());
  35 }