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 // template <class Ptr>
13 // struct pointer_traits
14 // {
15 //     typedef Ptr pointer;
16 //     ...
17 // };
18 
19 #include <memory>
20 #include <type_traits>
21 
22 struct A
23 {
24     typedef short element_type;
25     typedef char difference_type;
26 };
27 
28 int main()
29 {
30     static_assert((std::is_same<std::pointer_traits<A>::pointer, A>::value), "");
31     static_assert((std::is_same<std::pointer_traits<int*>::pointer, int*>::value), "");
32 }
33