// { dg-options "-std=gnu++0x" } // Copyright (C) 2008, 2009 Free Software Foundation // // 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 // . // 20.6.11 Template class unique_ptr [unique.ptr] #include #include struct A { A() { ++ctor_count; } virtual ~A() { ++dtor_count; } static long ctor_count; static long dtor_count; }; long A::ctor_count = 0; long A::dtor_count = 0; struct B : A { B() { ++ctor_count; } virtual ~B() { ++dtor_count; } static long ctor_count; static long dtor_count; }; long B::ctor_count = 0; long B::dtor_count = 0; struct reset_count_struct { ~reset_count_struct() { A::ctor_count = 0; A::dtor_count = 0; B::ctor_count = 0; B::dtor_count = 0; } }; // 20.6.11.2.1 unique_ptr constructors [unique.ptr.single.ctor] // Construction from pointer void test01() { reset_count_struct __attribute__((unused)) reset; bool test __attribute__((unused)) = true; std::unique_ptr A_default; VERIFY( A_default.get() == 0 ); VERIFY( A::ctor_count == 0 ); VERIFY( A::dtor_count == 0 ); VERIFY( B::ctor_count == 0 ); VERIFY( B::dtor_count == 0 ); std::unique_ptr A_from_A(new A); VERIFY( A_from_A.get() != 0 ); VERIFY( A::ctor_count == 1 ); VERIFY( A::dtor_count == 0 ); VERIFY( B::ctor_count == 0 ); VERIFY( B::dtor_count == 0 ); std::unique_ptr A_from_B(new B); VERIFY( A_from_B.get() != 0 ); VERIFY( A::ctor_count == 2 ); VERIFY( A::dtor_count == 0 ); VERIFY( B::ctor_count == 1 ); VERIFY( B::dtor_count == 0 ); } void test02() { reset_count_struct __attribute__((unused)) reset; bool test __attribute__((unused)) = true; A * const A_default = 0; std::unique_ptr p1(A_default); VERIFY( p1.get() == 0 ); VERIFY( A::ctor_count == 0 ); VERIFY( A::dtor_count == 0 ); VERIFY( B::ctor_count == 0 ); VERIFY( B::dtor_count == 0 ); A * const A_from_A = new A; std::unique_ptr p2(A_from_A); VERIFY( p2.get() == A_from_A ); VERIFY( A::ctor_count == 1 ); VERIFY( A::dtor_count == 0 ); VERIFY( B::ctor_count == 0 ); VERIFY( B::dtor_count == 0 ); } int main() { test01(); test02(); return 0; }