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