libstdc++-v3/testsuite/20_util/shared_ptr/observers/bool_conv.cc

   1 // { dg-options "-std=gnu++0x" }
   2
   3 // Copyright (C) 2005, 2006, 2007 Free Software Foundation
   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 2, 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 COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // 20.6.6.2 Template class shared_ptr [util.smartptr.shared]
  22
  23 #include <memory>
  24 #include <testsuite_hooks.h>
  25
  26 struct A { };
  27
  28 // 20.6.6.2.5 shared_ptr observers [util.smartptr.shared.obs]
  29
  30 // conversion to bool
  31 int
  32 test01()
  33 {
  34   bool test __attribute__((unused)) = true;
  35
  36   const std::shared_ptr<A> p1;
  37   VERIFY( p1 == false );
  38   const std::shared_ptr<A> p2(p1);
  39   VERIFY( p2 == false );
  40
  41   return 0;
  42 }
  43
  44 int
  45 test02()
  46 {
  47   bool test __attribute__((unused)) = true;
  48
  49   std::shared_ptr<A> p1(new A);
  50   VERIFY( p1 );
  51   std::shared_ptr<A> p2(p1);
  52   VERIFY( p2 );
  53   p1.reset();
  54   VERIFY( !p1 );
  55   VERIFY( p2 );
  56
  57   return 0;
  58 }
  59
  60 int
  61 test03()
  62 {
  63   bool test __attribute__((unused)) = true;
  64
  65   std::shared_ptr<A> p1(new A);
  66   std::shared_ptr<A> p2(p1);
  67   p2.reset(new A);
  68   VERIFY( p1 );
  69   VERIFY( p2 );
  70
  71   return 0;
  72 }
  73
  74
  75 int
  76 main()
  77 {
  78   test01();
  79   test02();
  80   test03();
  81   return 0;
  82 }