1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // <memory>
10 
11 // default_delete
12 
13 #include <memory>
14 #include <cassert>
15 
16 #include "test_macros.h"
17 
18 struct A
19 {
20     static int count;
AA21     A() {++count;}
AA22     A(const A&) {++count;}
~AA23     virtual ~A() {--count;}
24 };
25 
26 int A::count = 0;
27 
28 struct B
29     : public A
30 {
31     static int count;
BB32     B() {++count;}
BB33     B(const B& other) : A(other) {++count;}
~BB34     virtual ~B() {--count;}
35 };
36 
37 int B::count = 0;
38 
main(int,char **)39 int main(int, char**)
40 {
41     std::default_delete<B> d2;
42     std::default_delete<A> d1 = d2;
43     A* p = new B;
44     assert(A::count == 1);
45     assert(B::count == 1);
46     d1(p);
47     assert(A::count == 0);
48     assert(B::count == 0);
49 
50   return 0;
51 }
52