test/std/experimental/filesystem/fs.filesystem.synopsis/file_time_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 // UNSUPPORTED: c++98, c++03
  11
  12 // <experimental/filesystem>
  13
  14 // typedef TrivialClock file_time_type;
  15
  16 #include <experimental/filesystem>
  17 #include <chrono>
  18 #include <type_traits>
  19
  20 // system_clock is used because it meets the requirements of TrivialClock,
  21 // and the resolution and range of system_clock should match the operating
  22 // system's file time type.
  23 typedef std::chrono::system_clock              ExpectedClock;
  24 typedef std::chrono::time_point<ExpectedClock> ExpectedTimePoint;
  25
  26 int main() {
  27   static_assert(std::is_same<
  28           std::experimental::filesystem::file_time_type,
  29           ExpectedTimePoint
  30       >::value, "");
  31 }