1 // Copyright (C) 2005-2018 Free Software Foundation, Inc. 2 // 3 // This file is part of the GNU ISO C++ Library. This library is free 4 // software; you can redistribute it and/or modify it under the 5 // terms of the GNU General Public License as published by the 6 // Free Software Foundation; either version 3, or (at your option) 7 // any later version. 8 9 // This library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU General Public License for more details. 13 14 // You should have received a copy of the GNU General Public License along 15 // with this library; see the file COPYING3. If not see 16 // <http://www.gnu.org/licenses/>. 17 18 // TR1 2.2.2 Template class shared_ptr [tr.util.smartptr.shared] 19 20 #include <tr1/memory> 21 #include <testsuite_hooks.h> 22 23 struct A 24 { AA25 A() { ++ctor_count; } ~AA26 virtual ~A() { ++dtor_count; } 27 static long ctor_count; 28 static long dtor_count; 29 }; 30 long A::ctor_count = 0; 31 long A::dtor_count = 0; 32 33 struct reset_count_struct 34 { ~reset_count_structreset_count_struct35 ~reset_count_struct() 36 { 37 A::ctor_count = 0; 38 A::dtor_count = 0; 39 } 40 }; 41 42 43 // 2.2.3.3 shared_ptr assignment [tr.util.smartptr.shared.assign] 44 45 // Assignment from shared_ptr<Y> 46 void test01()47test01() 48 { 49 reset_count_struct __attribute__((unused)) reset; 50 51 std::tr1::shared_ptr<A> a; 52 53 a = std::tr1::shared_ptr<A>(new A); 54 VERIFY( a.get() != 0 ); 55 VERIFY( A::ctor_count == 1 ); 56 VERIFY( A::dtor_count == 0 ); 57 58 a = std::tr1::shared_ptr<A>(); 59 VERIFY( a.get() == 0 ); 60 VERIFY( A::ctor_count == 1 ); 61 VERIFY( A::dtor_count == 1 ); 62 } 63 64 int main()65main() 66 { 67 test01(); 68 return 0; 69 } 70