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 // convert constructor
14 
15 #include <memory>
16 #include <cassert>
17 
18 #include "test_macros.h"
19 #include "unique_ptr_test_helper.h"
20 
test()21 TEST_CONSTEXPR_CXX23 bool test() {
22   std::default_delete<B> d2;
23   std::default_delete<A> d1 = d2;
24   A* p                      = new B;
25   if (!TEST_IS_CONSTANT_EVALUATED) {
26     assert(A::count == 1);
27     assert(B::count == 1);
28   }
29 
30   d1(p);
31 
32   if (!TEST_IS_CONSTANT_EVALUATED) {
33     assert(A::count == 0);
34     assert(B::count == 0);
35   }
36 
37   return true;
38 }
39 
main(int,char **)40 int main(int, char**) {
41   test();
42 #if TEST_STD_VER >= 23
43   static_assert(test());
44 #endif
45 
46   return 0;
47 }
48