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 // unique_ptr
12 
13 // test reset
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   {
23     std::unique_ptr<A> p(new A);
24     if (!TEST_IS_CONSTANT_EVALUATED) {
25       assert(A::count == 1);
26       assert(B::count == 0);
27     }
28     A* i = p.get();
29     assert(i != nullptr);
30     p.reset(new B);
31     if (!TEST_IS_CONSTANT_EVALUATED) {
32       assert(A::count == 1);
33       assert(B::count == 1);
34     }
35   }
36   if (!TEST_IS_CONSTANT_EVALUATED) {
37     assert(A::count == 0);
38     assert(B::count == 0);
39   }
40   {
41     std::unique_ptr<A> p(new B);
42     if (!TEST_IS_CONSTANT_EVALUATED) {
43       assert(A::count == 1);
44       assert(B::count == 1);
45     }
46     A* i = p.get();
47     assert(i != nullptr);
48     p.reset(new B);
49     if (!TEST_IS_CONSTANT_EVALUATED) {
50       assert(A::count == 1);
51       assert(B::count == 1);
52     }
53   }
54   if (!TEST_IS_CONSTANT_EVALUATED) {
55     assert(A::count == 0);
56     assert(B::count == 0);
57   }
58 
59   return true;
60 }
61 
main(int,char **)62 int main(int, char**) {
63   test();
64 #if TEST_STD_VER >= 23
65   static_assert(test());
66 #endif
67 
68   return 0;
69 }
70