old-autovect-branch/libstdc++-v3/testsuite/tr1/2_general_utilities/memory/shared_ptr/observers/bool_conv.cc

   1 // Copyright (C) 2005 Free Software Foundation
   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 2, 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 COPYING.  If not, write to the Free
  16 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17 // USA.
  18
  19 // TR1 2.2.2 Template class shared_ptr [tr.util.smartptr.shared]
  20
  21 #include <tr1/memory>
  22 #include <testsuite_hooks.h>
  23
  24 struct A { };
  25
  26 // 2.2.3.5 shared_ptr observers [tr.util.smartptr.shared.obs]
  27
  28 // conversion to bool
  29 int
  30 test01()
  31 {
  32   bool test __attribute__((unused)) = true;
  33
  34   const std::tr1::shared_ptr<A> p1;
  35   VERIFY( p1 == false );
  36   const std::tr1::shared_ptr<A> p2(p1);
  37   VERIFY( p2 == false );
  38
  39   return 0;
  40 }
  41
  42 int
  43 test02()
  44 {
  45   bool test __attribute__((unused)) = true;
  46
  47   std::tr1::shared_ptr<A> p1(new A);
  48   VERIFY( p1 );
  49   std::tr1::shared_ptr<A> p2(p1);
  50   VERIFY( p2 );
  51   p1.reset();
  52   VERIFY( !p1 );
  53   VERIFY( p2 );
  54
  55   return 0;
  56 }
  57
  58 int
  59 test03()
  60 {
  61   bool test __attribute__((unused)) = true;
  62
  63   std::tr1::shared_ptr<A> p1(new A);
  64   std::tr1::shared_ptr<A> p2(p1);
  65   p2.reset(new A);
  66   VERIFY( p1 );
  67   VERIFY( p2 );
  68
  69   return 0;
  70 }
  71
  72
  73 int
  74 main()
  75 {
  76   test01();
  77   test02();
  78   test03();
  79   return 0;
  80 }