| // { dg-options "-std=gnu++0x" } |
| |
| // Copyright (C) 2008-2014 Free Software Foundation, Inc. |
| // |
| // 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 3, 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 COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // 20.8.13.2 Template class shared_ptr [util.smartptr.shared] |
| |
| #include <memory> |
| #include <testsuite_hooks.h> |
| |
| struct A |
| { |
| int i; |
| virtual ~A() { } |
| }; |
| |
| struct B : A |
| { |
| }; |
| |
| // 20.6.6.2.5 shared_ptr observers [util.smartptr.shared.obs] |
| |
| void |
| test01() |
| { |
| bool test __attribute__((unused)) = true; |
| |
| // test empty shared_ptrs compare equivalent |
| std::shared_ptr<A> p1; |
| std::shared_ptr<B> p2; |
| VERIFY( !p1.owner_before(p2) && !p2.owner_before(p1) ); |
| } |
| |
| |
| // Construction from pointer |
| void |
| test02() |
| { |
| bool test __attribute__((unused)) = true; |
| |
| std::shared_ptr<A> a0; |
| |
| std::shared_ptr<A> a1(new A); |
| VERIFY( a1.owner_before(a0) || a0.owner_before(a1) ); |
| VERIFY( !(a1.owner_before(a0) && a0.owner_before(a1)) ); |
| |
| std::shared_ptr<B> b1(new B); |
| VERIFY( a1.owner_before(b1) || b1.owner_before(a1) ); |
| VERIFY( !(a1.owner_before(b1) && b1.owner_before(a1)) ); |
| |
| std::shared_ptr<A> a2(a1); |
| VERIFY( !a1.owner_before(a2) && !a2.owner_before(a1) ); |
| a2 = b1; |
| VERIFY( !b1.owner_before(a2) && !a2.owner_before(b1) ); |
| |
| std::weak_ptr<A> w1(a1); |
| VERIFY( !a1.owner_before(w1) && !w1.owner_before(a1) ); |
| std::weak_ptr<A> w2(a2); |
| VERIFY( !b1.owner_before(w2) && !w2.owner_before(b1) ); |
| } |
| |
| // Aliasing |
| void |
| test03() |
| { |
| bool test __attribute__((unused)) = true; |
| |
| std::shared_ptr<A> p1(new A()); |
| std::shared_ptr<int> p2(p1, &p1->i); |
| VERIFY( !p1.owner_before(p2) && !p2.owner_before(p1) ); |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| test02(); |
| test03(); |
| return 0; |
| } |