95 lines
2.2 KiB
C++
95 lines
2.2 KiB
C++
// { dg-options "-std=gnu++0x" }
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// Copyright (C) 2008, 2009 Free Software Foundation
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// 20.8.13.2 Template class shared_ptr [util.smartptr.shared]
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#include <memory>
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#include <testsuite_hooks.h>
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struct A
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{
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int i;
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virtual ~A() { }
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};
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struct B : A
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{
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};
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// 20.6.6.2.5 shared_ptr observers [util.smartptr.shared.obs]
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void
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test01()
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{
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bool test __attribute__((unused)) = true;
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// test empty shared_ptrs compare equivalent
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std::shared_ptr<A> p1;
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std::shared_ptr<B> p2;
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VERIFY( !p1.owner_before(p2) && !p2.owner_before(p1) );
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}
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// Construction from pointer
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void
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test02()
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{
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bool test __attribute__((unused)) = true;
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std::shared_ptr<A> a0;
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std::shared_ptr<A> a1(new A);
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VERIFY( a1.owner_before(a0) || a0.owner_before(a1) );
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VERIFY( !(a1.owner_before(a0) && a0.owner_before(a1)) );
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std::shared_ptr<B> b1(new B);
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VERIFY( a1.owner_before(b1) || b1.owner_before(a1) );
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VERIFY( !(a1.owner_before(b1) && b1.owner_before(a1)) );
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std::shared_ptr<A> a2(a1);
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VERIFY( !a1.owner_before(a2) && !a2.owner_before(a1) );
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a2 = b1;
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VERIFY( !b1.owner_before(a2) && !a2.owner_before(b1) );
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std::weak_ptr<A> w1(a1);
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VERIFY( !a1.owner_before(w1) && !w1.owner_before(a1) );
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std::weak_ptr<A> w2(a2);
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VERIFY( !b1.owner_before(w2) && !w2.owner_before(b1) );
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}
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// Aliasing
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void
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test03()
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{
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bool test __attribute__((unused)) = true;
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std::shared_ptr<A> p1(new A());
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std::shared_ptr<int> p2(p1, &p1->i);
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VERIFY( !p1.owner_before(p2) && !p2.owner_before(p1) );
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}
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int
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main()
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{
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test01();
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test02();
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test03();
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return 0;
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}
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