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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/tr1/2_general_utilities/shared_ptr/observers/use_count.cc
1 // Copyright (C) 2005, 2009 Free Software Foundation
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)
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.
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/>.
18 // TR1 2.2.2 Template class shared_ptr [tr.util.smartptr.shared]
21 #include <testsuite_hooks.h>
26 // 2.2.3.5 shared_ptr observers [tr.util.smartptr.shared.obs]
32 bool test
__attribute__((unused
)) = true;
34 const std::tr1::shared_ptr
<A
> p1
;
35 VERIFY( p1
.use_count() == 0 );
36 const std::tr1::shared_ptr
<A
> p2(p1
);
37 VERIFY( p1
.use_count() == 0 );
45 bool test
__attribute__((unused
)) = true;
47 std::tr1::shared_ptr
<A
> p1(new A
);
48 std::tr1::shared_ptr
<A
> p2(p1
);
50 VERIFY( p1
.use_count() == 0 );
51 VERIFY( p2
.use_count() == 1 );
59 bool test
__attribute__((unused
)) = true;
61 std::tr1::shared_ptr
<A
> p1(new A
);
62 std::tr1::shared_ptr
<A
> p2(p1
);
64 VERIFY( p1
.use_count() == 1 );
65 VERIFY( p2
.use_count() == 1 );