94 lines
2.2 KiB
C++
94 lines
2.2 KiB
C++
// { dg-options "-std=gnu++0x" }
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// Copyright (C) 2010 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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// 20.9.11.2 Class template shared_ptr [util.smartptr.shared]
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#include <memory>
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#include <cstddef>
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#include <testsuite_hooks.h>
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#include <testsuite_allocator.h>
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// 20.9.11.2.1 shared_ptr constructors [util.smartptr.shared.const]
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// Construction from nullptr
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struct deleter
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{
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int count;
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deleter() : count(0) { }
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void operator()(std::nullptr_t) { ++count; }
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void operator()(int*) const { throw "wrong type passed to deleter"; }
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};
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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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std::shared_ptr<int> p = nullptr;
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VERIFY( p.get() == nullptr );
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VERIFY( p.use_count() == 0 );
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}
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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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deleter d;
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std::shared_ptr<int> p(nullptr, std::ref(d));
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VERIFY( p.get() == nullptr );
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VERIFY( p.use_count() == 1 );
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p = nullptr;
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VERIFY( p.use_count() == 0 );
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VERIFY( d.count == 1 );
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}
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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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deleter d;
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__gnu_test::tracker_allocator<int> a;
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std::shared_ptr<int> p(nullptr, std::ref(d), a);
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VERIFY( p.get() == nullptr );
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VERIFY( p.use_count() == 1 );
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p = nullptr;
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VERIFY( p.use_count() == 0 );
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VERIFY( d.count == 1 );
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typedef __gnu_test::tracker_allocator_counter c;
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VERIFY( c::get_destruct_count() == c::get_construct_count() );
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VERIFY( c::get_deallocation_count() == c::get_allocation_count() );
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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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