1 // Copyright (C) 2005-2018 Free Software Foundation, Inc.
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 3, 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 COPYING3.  If not see
16 // <http://www.gnu.org/licenses/>.
17 
18 // TR1 2.2.2 Template class shared_ptr [tr.util.smartptr.shared]
19 
20 #include <tr1/memory>
21 #include <testsuite_hooks.h>
22 
23 struct A
24 {
AA25   A() { ++ctor_count; }
~AA26   virtual ~A() { ++dtor_count; }
27   static long ctor_count;
28   static long dtor_count;
29 };
30 long A::ctor_count = 0;
31 long A::dtor_count = 0;
32 
33 struct reset_count_struct
34 {
~reset_count_structreset_count_struct35   ~reset_count_struct()
36   {
37     A::ctor_count = 0;
38     A::dtor_count = 0;
39   }
40 };
41 
42 
43 // 2.2.3.3 shared_ptr assignment [tr.util.smartptr.shared.assign]
44 
45 // Assignment from shared_ptr<Y>
46 void
test01()47 test01()
48 {
49   reset_count_struct __attribute__((unused)) reset;
50 
51   std::tr1::shared_ptr<A> a;
52 
53   a = std::tr1::shared_ptr<A>(new A);
54   VERIFY( a.get() != 0 );
55   VERIFY( A::ctor_count == 1 );
56   VERIFY( A::dtor_count == 0 );
57 
58   a = std::tr1::shared_ptr<A>();
59   VERIFY( a.get() == 0 );
60   VERIFY( A::ctor_count == 1 );
61   VERIFY( A::dtor_count == 1 );
62 }
63 
64 int
main()65 main()
66 {
67   test01();
68   return 0;
69 }
70