| // { dg-options "-std=gnu++0x" } |
| |
| // Copyright (C) 2007 Free Software Foundation |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 2, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING. If not, write to the Free |
| // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| // USA. |
| |
| // 20.6.6.2 Template class shared_ptr [util.smartptr.shared] |
| |
| #include <memory> |
| #include <utility> |
| #include <testsuite_hooks.h> |
| |
| struct A |
| { |
| A() { ++ctor_count; } |
| virtual ~A() { ++dtor_count; } |
| static long ctor_count; |
| static long dtor_count; |
| }; |
| long A::ctor_count = 0; |
| long A::dtor_count = 0; |
| |
| struct B : A |
| { |
| B() { ++ctor_count; } |
| virtual ~B() { ++dtor_count; } |
| static long ctor_count; |
| static long dtor_count; |
| }; |
| long B::ctor_count = 0; |
| long B::dtor_count = 0; |
| |
| struct reset_count_struct |
| { |
| ~reset_count_struct() |
| { |
| A::ctor_count = 0; |
| A::dtor_count = 0; |
| B::ctor_count = 0; |
| B::dtor_count = 0; |
| } |
| }; |
| |
| |
| // 20.6.6.2.1 shared_ptr constructors [util.smartptr.shared.const] |
| |
| // Rvalue assignment from shared_ptr |
| void |
| test01() |
| { |
| reset_count_struct __attribute__((unused)) reset; |
| bool test __attribute__((unused)) = true; |
| |
| std::shared_ptr<A> a1; |
| std::shared_ptr<A> a2(new A); |
| |
| a1 = std::move(a2); |
| VERIFY( a1.get() != 0 ); |
| VERIFY( a2.get() == 0 ); |
| VERIFY( a1.use_count() == 1 ); |
| VERIFY( a2.use_count() == 0 ); |
| VERIFY( A::ctor_count == 1 ); |
| VERIFY( A::dtor_count == 0 ); |
| |
| a1 = std::move(std::shared_ptr<A>()); |
| VERIFY( a1.get() == 0 ); |
| VERIFY( A::ctor_count == 1 ); |
| VERIFY( A::dtor_count == 1 ); |
| } |
| |
| // Rvalue assignment from shared_ptr<Y> |
| void |
| test02() |
| { |
| reset_count_struct __attribute__((unused)) reset; |
| bool test __attribute__((unused)) = true; |
| |
| std::shared_ptr<A> a; |
| std::shared_ptr<B> b(new B); |
| |
| a = std::move(b); |
| VERIFY( a.get() != 0 ); |
| VERIFY( b.get() == 0 ); |
| VERIFY( a.use_count() == 1 ); |
| VERIFY( b.use_count() == 0 ); |
| VERIFY( A::ctor_count == 1 ); |
| VERIFY( A::dtor_count == 0 ); |
| VERIFY( B::ctor_count == 1 ); |
| VERIFY( B::dtor_count == 0 ); |
| |
| a = std::move(std::shared_ptr<A>()); |
| VERIFY( a.get() == 0 ); |
| VERIFY( A::ctor_count == 1 ); |
| VERIFY( A::dtor_count == 1 ); |
| VERIFY( B::ctor_count == 1 ); |
| VERIFY( B::dtor_count == 1 ); |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| test02(); |
| return 0; |
| } |