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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/20_util/shared_ptr/assign/shared_ptr.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 virtual ~A() { ++dtor_count
; }
30 static long ctor_count
;
31 static long dtor_count
;
33 long A::ctor_count
= 0;
34 long A::dtor_count
= 0;
39 virtual ~B() { ++dtor_count
; }
40 static long ctor_count
;
41 static long dtor_count
;
43 long B::ctor_count
= 0;
44 long B::dtor_count
= 0;
47 struct reset_count_struct
59 // 20.6.6.2.3 shared_ptr assignment [util.smartptr.shared.assign]
61 // Assignment from shared_ptr<Y>
65 reset_count_struct
__attribute__((unused
)) reset
;
66 bool test
__attribute__((unused
)) = true;
70 a
= std::shared_ptr
<A
>();
71 VERIFY( a
.get() == 0 );
72 VERIFY( A::ctor_count
== 0 );
73 VERIFY( A::dtor_count
== 0 );
74 VERIFY( B::ctor_count
== 0 );
75 VERIFY( B::dtor_count
== 0 );
77 a
= std::shared_ptr
<A
>(new A
);
78 VERIFY( a
.get() != 0 );
79 VERIFY( A::ctor_count
== 1 );
80 VERIFY( A::dtor_count
== 0 );
81 VERIFY( B::ctor_count
== 0 );
82 VERIFY( B::dtor_count
== 0 );
84 a
= std::shared_ptr
<B
>(new B
);
85 VERIFY( a
.get() != 0 );
86 VERIFY( A::ctor_count
== 2 );
87 VERIFY( A::dtor_count
== 1 );
88 VERIFY( B::ctor_count
== 1 );
89 VERIFY( B::dtor_count
== 0 );