| // { dg-options "-std=gnu++0x" } |
| |
| // Copyright (C) 2010-2014 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/>. |
| |
| // 20.9.11.2 Class template shared_ptr [util.smartptr.shared] |
| |
| #include <memory> |
| #include <cstddef> |
| #include <testsuite_hooks.h> |
| #include <testsuite_allocator.h> |
| |
| // 20.9.11.2.1 shared_ptr constructors [util.smartptr.shared.const] |
| |
| // Construction from nullptr |
| |
| struct deleter |
| { |
| int count; |
| deleter() : count(0) { } |
| void operator()(std::nullptr_t) { ++count; } |
| void operator()(int*) const { throw "wrong type passed to deleter"; } |
| }; |
| |
| void |
| test01() |
| { |
| bool test __attribute__((unused)) = true; |
| |
| std::shared_ptr<int> p = nullptr; |
| VERIFY( p.get() == nullptr ); |
| VERIFY( p.use_count() == 0 ); |
| |
| } |
| |
| void |
| test02() |
| { |
| bool test __attribute__((unused)) = true; |
| |
| deleter d; |
| std::shared_ptr<int> p(nullptr, std::ref(d)); |
| VERIFY( p.get() == nullptr ); |
| VERIFY( p.use_count() == 1 ); |
| |
| p = nullptr; |
| VERIFY( p.use_count() == 0 ); |
| VERIFY( d.count == 1 ); |
| } |
| |
| |
| void |
| test03() |
| { |
| bool test __attribute__((unused)) = true; |
| |
| deleter d; |
| __gnu_test::tracker_allocator<int> a; |
| std::shared_ptr<int> p(nullptr, std::ref(d), a); |
| VERIFY( p.get() == nullptr ); |
| VERIFY( p.use_count() == 1 ); |
| |
| p = nullptr; |
| VERIFY( p.use_count() == 0 ); |
| VERIFY( d.count == 1 ); |
| |
| typedef __gnu_test::tracker_allocator_counter c; |
| VERIFY( c::get_destruct_count() == c::get_construct_count() ); |
| VERIFY( c::get_deallocation_count() == c::get_allocation_count() ); |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| test02(); |
| test03(); |
| return 0; |
| } |