ceph/src/boost/libs/chrono/test/time_point/arithmetic_ext_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 #define BOOST_CHRONO_EXTENSIONS
  15 #include <boost/chrono/chrono.hpp>
  16 #include <boost/detail/lightweight_test.hpp>
  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::milliseconds Duration;
  29     boost::chrono::time_point<Clock, Duration> t(Duration(3));
  30     t += 2;
  31     BOOST_TEST(t.time_since_epoch() == Duration(5));
  32   }
  33   {
  34     typedef boost::chrono::system_clock Clock;
  35     typedef boost::chrono::milliseconds Duration;
  36     boost::chrono::time_point<Clock, Duration> t(Duration(3));
  37     t++;
  38     BOOST_TEST(t.time_since_epoch() == Duration(4));
  39   }
  40   {
  41     typedef boost::chrono::system_clock Clock;
  42     typedef boost::chrono::milliseconds Duration;
  43     boost::chrono::time_point<Clock, Duration> t(Duration(3));
  44     ++t;
  45     BOOST_TEST(t.time_since_epoch() == Duration(4));
  46   }
  47   {
  48     typedef boost::chrono::system_clock Clock;
  49     typedef boost::chrono::milliseconds Duration;
  50     boost::chrono::time_point<Clock, Duration> t(Duration(3));
  51     t -= 2;
  52     BOOST_TEST(t.time_since_epoch() == Duration(1));
  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     t--;
  59     BOOST_TEST(t.time_since_epoch() == Duration(2));
  60   }
  61   {
  62     typedef boost::chrono::system_clock Clock;
  63     typedef boost::chrono::milliseconds Duration;
  64     boost::chrono::time_point<Clock, Duration> t(Duration(3));
  65     --t;
  66     BOOST_TEST(t.time_since_epoch() == Duration(2));
  67   }
  68
  69   return boost::report_errors();
  70 }