]>
git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/20_util/shared_ptr/observers/use_count.cc
1 // { dg-options "-std=gnu++0x" }
3 // Copyright (C) 2005, 2006, 2007 Free Software Foundation
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)
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.
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,
21 // 20.6.6.2 Template class shared_ptr [util.smartptr.shared]
24 #include <testsuite_hooks.h>
29 // 20.6.6.2.5 shared_ptr observers [util.smartptr.shared.obs]
35 bool test
__attribute__((unused
)) = true;
37 const std::shared_ptr
<A
> p1
;
38 VERIFY( p1
.use_count() == 0 );
39 const std::shared_ptr
<A
> p2(p1
);
40 VERIFY( p1
.use_count() == 0 );
48 bool test
__attribute__((unused
)) = true;
50 std::shared_ptr
<A
> p1(new A
);
51 std::shared_ptr
<A
> p2(p1
);
53 VERIFY( p1
.use_count() == 0 );
54 VERIFY( p2
.use_count() == 1 );
62 bool test
__attribute__((unused
)) = true;
64 std::shared_ptr
<A
> p1(new A
);
65 std::shared_ptr
<A
> p2(p1
);
67 VERIFY( p1
.use_count() == 1 );
68 VERIFY( p2
.use_count() == 1 );