libcxx/test/std/time/time.clock/time.clock.file/rep_signed.pass.cpp

   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 // UNSUPPORTED: c++03, c++11, c++14, c++17
  10
  11 // <chrono>
  12
  13 // file_clock
  14
  15 // rep should be signed
  16
  17 #include <chrono>
  18 #include <cassert>
  19 #include <type_traits>
  20
  21 #include "test_macros.h"
  22
  23 int main(int, char**)
  24 {
  25     static_assert(std::is_signed<std::chrono::file_clock::rep>::value, "");
  26     assert(std::chrono::file_clock::duration::min() <
  27            std::chrono::file_clock::duration::zero());
  28
  29   return 0;
  30 }