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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/20_util/shared_ptr/observers/owner_before.cc
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1 // { dg-do run { target c++11 } }
3 // Copyright (C) 2008-2016 Free Software Foundation, Inc.
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 3, 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 COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
20 // 20.8.13.2 Template class shared_ptr [util.smartptr.shared]
23 #include <testsuite_hooks.h>
35 // 20.6.6.2.5 shared_ptr observers [util.smartptr.shared.obs]
40 bool test
__attribute__((unused
)) = true;
42 // test empty shared_ptrs compare equivalent
43 std::shared_ptr
<A
> p1
;
44 std::shared_ptr
<B
> p2
;
45 VERIFY( !p1
.owner_before(p2
) && !p2
.owner_before(p1
) );
49 // Construction from pointer
53 bool test
__attribute__((unused
)) = true;
55 std::shared_ptr
<A
> a0
;
57 std::shared_ptr
<A
> a1(new A
);
58 VERIFY( a1
.owner_before(a0
) || a0
.owner_before(a1
) );
59 VERIFY( !(a1
.owner_before(a0
) && a0
.owner_before(a1
)) );
61 std::shared_ptr
<B
> b1(new B
);
62 VERIFY( a1
.owner_before(b1
) || b1
.owner_before(a1
) );
63 VERIFY( !(a1
.owner_before(b1
) && b1
.owner_before(a1
)) );
65 std::shared_ptr
<A
> a2(a1
);
66 VERIFY( !a1
.owner_before(a2
) && !a2
.owner_before(a1
) );
68 VERIFY( !b1
.owner_before(a2
) && !a2
.owner_before(b1
) );
70 std::weak_ptr
<A
> w1(a1
);
71 VERIFY( !a1
.owner_before(w1
) && !w1
.owner_before(a1
) );
72 std::weak_ptr
<A
> w2(a2
);
73 VERIFY( !b1
.owner_before(w2
) && !w2
.owner_before(b1
) );
80 bool test
__attribute__((unused
)) = true;
82 std::shared_ptr
<A
> p1(new A());
83 std::shared_ptr
<int> p2(p1
, &p1
->i
);
84 VERIFY( !p1
.owner_before(p2
) && !p2
.owner_before(p1
) );