libcxx/test/std/time/time.duration/time.duration.literals/literals.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
  10 // <chrono>
  11
  12 #include <chrono>
  13 #include <type_traits>
  14 #include <cassert>
  15
  16 #include "test_macros.h"
  17
  18 int main(int, char**)
  19 {
  20     using namespace std::literals::chrono_literals;
  21
  22 //    Make sure the types are right
  23     static_assert ( std::is_same<decltype( 3h   ), std::chrono::hours>::value, "" );
  24     static_assert ( std::is_same<decltype( 3min ), std::chrono::minutes>::value, "" );
  25     static_assert ( std::is_same<decltype( 3s   ), std::chrono::seconds>::value, "" );
  26     static_assert ( std::is_same<decltype( 3ms  ), std::chrono::milliseconds>::value, "" );
  27     static_assert ( std::is_same<decltype( 3us  ), std::chrono::microseconds>::value, "" );
  28     static_assert ( std::is_same<decltype( 3ns  ), std::chrono::nanoseconds>::value, "" );
  29
  30     std::chrono::hours h = 4h;
  31     assert ( h == std::chrono::hours(4));
  32     auto h2 = 4.0h;
  33     assert ( h == h2 );
  34
  35     std::chrono::minutes min = 36min;
  36     assert ( min == std::chrono::minutes(36));
  37     auto min2 = 36.0min;
  38     assert ( min == min2 );
  39
  40     std::chrono::seconds s = 24s;
  41     assert ( s == std::chrono::seconds(24));
  42     auto s2 = 24.0s;
  43     assert ( s == s2 );
  44
  45     std::chrono::milliseconds ms = 247ms;
  46     assert ( ms == std::chrono::milliseconds(247));
  47     auto ms2 = 247.0ms;
  48     assert ( ms == ms2 );
  49
  50     std::chrono::microseconds us = 867us;
  51     assert ( us == std::chrono::microseconds(867));
  52     auto us2 = 867.0us;
  53     assert ( us == us2 );
  54
  55     std::chrono::nanoseconds ns = 645ns;
  56     assert ( ns == std::chrono::nanoseconds(645));
  57     auto ns2 = 645.ns;
  58     assert ( ns == ns2 );
  59
  60
  61   return 0;
  62 }