test/std/utilities/memory/pointer.traits/difference_type.pass.cpp

   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 T>
  13 // struct pointer_traits<T*>
  14 // {
  15 //     typedef ptrdiff_t difference_type;
  16 //     ...
  17 // };
  18
  19 #include <memory>
  20 #include <type_traits>
  21
  22 int main()
  23 {
  24     static_assert((std::is_same<std::pointer_traits<double*>::difference_type, std::ptrdiff_t>::value), "");
  25 }