1// { dg-options "-std=gnu++11" } 2 3// Copyright (C) 2005-2015 Free Software Foundation, Inc. 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the 7// terms of the GNU General Public License as published by the 8// Free Software Foundation; either version 3, or (at your option) 9// any later version. 10 11// This library is distributed in the hope that it will be useful, 12// but WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14// GNU General Public License for more details. 15 16// You should have received a copy of the GNU General Public License along 17// with this library; see the file COPYING3. If not see 18// <http://www.gnu.org/licenses/>. 19 20// 20.6.6.2 Template class shared_ptr [util.smartptr.shared] 21 22#include <memory> 23#include <testsuite_hooks.h> 24 25struct A { }; 26 27// 20.6.6.2.5 shared_ptr observers [util.smartptr.shared.obs] 28 29// unique 30void 31test01() 32{ 33 bool test __attribute__((unused)) = true; 34 35 const std::shared_ptr<A> p1; 36 VERIFY( !p1.unique() ); 37 const std::shared_ptr<A> p2(p1); 38 VERIFY( !p1.unique() ); 39} 40 41void 42test02() 43{ 44 bool test __attribute__((unused)) = true; 45 46 std::shared_ptr<A> p1(new A); 47 VERIFY( p1.unique() ); 48 std::shared_ptr<A> p2(p1); 49 VERIFY( !p1.unique() ); 50 p1.reset(); 51 VERIFY( !p1.unique() ); 52 VERIFY( p2.unique() ); 53} 54 55void 56test03() 57{ 58 bool test __attribute__((unused)) = true; 59 60 std::shared_ptr<A> p1(new A); 61 std::shared_ptr<A> p2(p1); 62 p2.reset(new A); 63 VERIFY( p1.unique() ); 64 VERIFY( p2.unique() ); 65} 66 67 68int 69main() 70{ 71 test01(); 72 test02(); 73 test03(); 74 return 0; 75} 76