old-autovect-branch/libstdc++-v3/testsuite/tr1/2_general_utilities/memory/shared_ptr/comparison/cmp.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   virtual ~A() { }
  27 };
  28
  29 struct B : A
  30 {
  31 };
  32
  33 // 2.2.3.6 shared_ptr comparison [tr.util.smartptr.shared.cmp]
  34
  35 int
  36 test01()
  37 {
  38     // test empty shared_ptrs compare equivalent
  39     std::tr1::shared_ptr<A> p1;
  40     std::tr1::shared_ptr<B> p2;
  41     VERIFY( p1 == p2 );
  42     VERIFY( !(p1 != p2) );
  43     VERIFY( !(p1 < p2) && !(p2 < p1) );
  44     return 0;
  45 }
  46
  47
  48 // Construction from pointer
  49 int
  50 test02()
  51 {
  52   std::tr1::shared_ptr<A> A_default;
  53
  54   std::tr1::shared_ptr<A> A_from_A(new A);
  55   VERIFY( A_default != A_from_A );
  56   VERIFY( !(A_default == A_from_A) );
  57   VERIFY( (A_default < A_from_A) || (A_from_A < A_default) );
  58
  59   std::tr1::shared_ptr<B> B_from_B(new B);
  60   VERIFY( B_from_B != A_from_A );
  61   VERIFY( !(B_from_B == A_from_A) );
  62   VERIFY( (B_from_B < A_from_A) || (A_from_A < B_from_B) );
  63
  64   A_from_A.reset();
  65   VERIFY( A_default == A_from_A );
  66   VERIFY( !(A_default != A_from_A) );
  67   VERIFY( !(A_default < A_from_A) && !(A_from_A < A_default) );
  68
  69   B_from_B.reset();
  70   VERIFY( B_from_B == A_from_A );
  71   VERIFY( !(B_from_B != A_from_A) );
  72   VERIFY( !(B_from_B < A_from_A) && !(A_from_A < B_from_B) );
  73
  74   return 0;
  75 }
  76
  77 int
  78 main()
  79 {
  80   test01();
  81   test02();
  82   return 0;
  83 }