libs/chrono/test/time_point/constructor_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 //  Adaptation to Boost of the libcxx
  10 //  Copyright 2010 Vicente J. Botet Escriba
  11 //  Distributed under the Boost Software License, Version 1.0.
  12 //  See http://www.boost.org/LICENSE_1_0.txt
  13
  14 #include <boost/chrono/chrono.hpp>
  15 #include <boost/detail/lightweight_test.hpp>
  16 #include "../rep.h"
  17 #ifdef BOOST_NO_CXX11_CONSTEXPR
  18 #define BOOST_CONSTEXPR_ASSERT(C) BOOST_TEST(C)
  19 #else
  20 #include <boost/static_assert.hpp>
  21 #define BOOST_CONSTEXPR_ASSERT(C) BOOST_STATIC_ASSERT(C)
  22 #endif
  23
  24 int main()
  25 {
  26   {
  27     typedef boost::chrono::system_clock Clock;
  28     typedef boost::chrono::microseconds Duration1;
  29     typedef boost::chrono::milliseconds Duration2;
  30     boost::chrono::time_point<Clock, Duration2> t2(Duration2(3));
  31     boost::chrono::time_point<Clock, Duration1> t1 = t2;
  32     BOOST_TEST(t1.time_since_epoch() == Duration1(3000));
  33   }
  34   {
  35     typedef boost::chrono::system_clock Clock;
  36     typedef boost::chrono::microseconds Duration1;
  37     typedef boost::chrono::milliseconds Duration2;
  38     BOOST_CONSTEXPR boost::chrono::time_point<Clock, Duration2> t2(Duration2(3));
  39     BOOST_CONSTEXPR boost::chrono::time_point<Clock, Duration1> t1 = t2;
  40     BOOST_CONSTEXPR_ASSERT(t1.time_since_epoch() == Duration1(3000));
  41   }
  42   {
  43     typedef boost::chrono::system_clock Clock;
  44     typedef boost::chrono::duration<Rep, boost::milli> Duration;
  45     boost::chrono::time_point<Clock, Duration> t;
  46     BOOST_TEST(t.time_since_epoch() == Duration::zero());
  47   }
  48   {
  49     typedef boost::chrono::system_clock Clock;
  50     typedef boost::chrono::duration<Rep, boost::milli> Duration;
  51     BOOST_CONSTEXPR boost::chrono::time_point<Clock, Duration> t;
  52     BOOST_CONSTEXPR_ASSERT(t.time_since_epoch() == Duration::zero());
  53   }
  54   {
  55     typedef boost::chrono::system_clock Clock;
  56     typedef boost::chrono::milliseconds Duration;
  57     boost::chrono::time_point<Clock, Duration> t(Duration(3));
  58     BOOST_TEST(t.time_since_epoch() == Duration(3));
  59   }
  60   {
  61     typedef boost::chrono::system_clock Clock;
  62     typedef boost::chrono::milliseconds Duration;
  63     BOOST_CONSTEXPR boost::chrono::time_point<Clock, Duration> t(Duration(3));
  64     BOOST_CONSTEXPR_ASSERT(t.time_since_epoch() == Duration(3));
  65   }
  66   {
  67     typedef boost::chrono::system_clock Clock;
  68     typedef boost::chrono::milliseconds Duration;
  69     boost::chrono::time_point<Clock, Duration> t(boost::chrono::seconds(3));
  70     BOOST_TEST(t.time_since_epoch() == Duration(3000));
  71   }
  72   {
  73     typedef boost::chrono::system_clock Clock;
  74     typedef boost::chrono::milliseconds Duration;
  75     BOOST_CONSTEXPR boost::chrono::time_point<Clock, Duration> t(boost::chrono::seconds(3));
  76     BOOST_CONSTEXPR_ASSERT(t.time_since_epoch() == Duration(3000));
  77   }
  78
  79   return boost::report_errors();
  80 }