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 // template <class T>
12 // struct hash<shared_ptr<T>>
13 // {
14 //     typedef shared_ptr<T>    argument_type;
15 //     typedef size_t           result_type;
16 //     size_t operator()(const shared_ptr<T>& p) const;
17 // };
18 
19 #include <memory>
20 
21 #include <cassert>
22 #include <functional>
23 
24 #include "test_macros.h"
25 
26 #if TEST_STD_VER >= 11
27 #include "poisoned_hash_helper.h"
28 
29 struct A {};
30 #endif
31 
32 int main(int, char**)
33 {
34   {
35     int* ptr = new int;
36     std::shared_ptr<int> p(ptr);
37     std::hash<std::shared_ptr<int> > f;
38     std::size_t h = f(p);
39     assert(h == std::hash<int*>()(ptr));
40   }
41 #if TEST_STD_VER >= 11
42   {
43     test_hash_enabled<std::shared_ptr<int>>();
44     test_hash_enabled<std::shared_ptr<A>>();
45   }
46 #endif
47 
48   return 0;
49 }
50