libstdc++-v3/testsuite/tr1/2_general_utilities/memory/shared_ptr/cons/pointer.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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  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 struct B : A { };
  26
  27
  28 // 2.2.3.1 shared_ptr constructors [tr.util.smartptr.shared.const]
  29
  30 // Construction from pointer
  31
  32 int
  33 test01()
  34 {
  35   bool test __attribute__((unused)) = true;
  36
  37   A * const a = 0;
  38   std::tr1::shared_ptr<A> p(a);
  39   VERIFY( p.get() == 0 );
  40   VERIFY( p.use_count() == 1 );
  41
  42   return 0;
  43 }
  44
  45 int
  46 test02()
  47 {
  48   bool test __attribute__((unused)) = true;
  49
  50   A * const a = new A;
  51   std::tr1::shared_ptr<A> p(a);
  52   VERIFY( p.get() == a );
  53   VERIFY( p.use_count() == 1 );
  54
  55   return 0;
  56 }
  57
  58
  59 int
  60 test03()
  61 {
  62   bool test __attribute__((unused)) = true;
  63
  64   B * const b = new B;
  65   std::tr1::shared_ptr<A> p(b);
  66   VERIFY( p.get() == b );
  67   VERIFY( p.use_count() == 1 );
  68
  69   return 0;
  70 }
  71
  72 int
  73 main()
  74 {
  75   test01();
  76   test02();
  77   test02();
  78   return 0;
  79 }