1c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant//===----------------------------------------------------------------------===// 2c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant// 3c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant// The LLVM Compiler Infrastructure 4c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant// 8c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant//===----------------------------------------------------------------------===// 9c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant 10c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant// <memory> 11c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant 12c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant// default_delete 13c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant 14c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant#include <memory> 15c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant#include <cassert> 16c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant 17c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnantstruct A 18c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant{ 19c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant static int count; 20c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant A() {++count;} 21c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant A(const A&) {++count;} 22c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant virtual ~A() {--count;} 23c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant}; 24c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant 25c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnantint A::count = 0; 26c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant 27c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnantstruct B 28c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant : public A 29c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant{ 30c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant static int count; 31c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant B() {++count;} 32c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant B(const B&) {++count;} 33c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant virtual ~B() {--count;} 34c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant}; 35c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant 36c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnantint B::count = 0; 37c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant 38c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnantint main() 39c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant{ 40c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant std::default_delete<B> d2; 41c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant std::default_delete<A> d1 = d2; 42c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant A* p = new B; 43c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant assert(A::count == 1); 44c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant assert(B::count == 1); 45c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant d1(p); 46c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant assert(A::count == 0); 47c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant assert(B::count == 0); 48c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant} 49