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      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