88 lines
3.1 KiB
C++
88 lines
3.1 KiB
C++
// io_ex1.cpp ----------------------------------------------------------//
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// Copyright 2010 Howard Hinnant
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// Copyright 2010 Vicente J. Botet Escriba
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// Copyright (c) Microsoft Corporation 2014
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// Distributed under the Boost Software License, Version 1.0.
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// See http://www.boost.org/LICENSE_1_0.txt
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/*
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This code was adapted by Vicente J. Botet Escriba from Hinnant's html documentation.
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Many thanks to Howard for making his code available under the Boost license.
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*/
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#include <iostream>
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#include <boost/chrono/config.hpp>
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#include <boost/chrono/chrono_io.hpp>
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#include <boost/chrono/system_clocks.hpp>
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#include <boost/chrono/thread_clock.hpp>
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#include <boost/chrono/process_cpu_clocks.hpp>
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int main()
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{
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using std::cout;
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using namespace boost;
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using namespace boost::chrono;
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cout << "milliseconds(1) = "
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<< milliseconds(1) << '\n';
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cout << "milliseconds(3) + microseconds(10) = "
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<< milliseconds(3) + microseconds(10) << '\n';
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cout << "hours(3) + minutes(10) = "
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<< hours(3) + minutes(10) << '\n';
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typedef duration<long long, ratio<1, 2500000000ULL> > ClockTick;
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cout << "ClockTick(3) + nanoseconds(10) = "
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<< ClockTick(3) + nanoseconds(10) << '\n';
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cout << "\nSet cout to use short names:\n";
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#if BOOST_CHRONO_VERSION==2
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cout << duration_fmt(duration_style::symbol);
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#else
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cout << duration_short;
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#endif
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cout << "milliseconds(3) + microseconds(10) = "
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<< milliseconds(3) + microseconds(10) << '\n';
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cout << "hours(3) + minutes(10) = "
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<< hours(3) + minutes(10) << '\n';
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cout << "ClockTick(3) + nanoseconds(10) = "
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<< ClockTick(3) + nanoseconds(10) << '\n';
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cout << "\nsystem_clock::now() = " << system_clock::now() << '\n';
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#if defined _MSC_VER && _MSC_VER == 1700
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#else
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#if BOOST_CHRONO_VERSION==2
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cout << "\nsystem_clock::now() = " << time_fmt(chrono::timezone::local) << system_clock::now() << '\n';
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cout << "\nsystem_clock::now() = " << time_fmt(chrono::timezone::local,"%Y/%m/%d") << system_clock::now() << '\n';
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#endif
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#endif
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#ifdef BOOST_CHRONO_HAS_CLOCK_STEADY
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cout << "steady_clock::now() = " << steady_clock::now() << '\n';
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#endif
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#if BOOST_CHRONO_VERSION==2
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cout << "\nSet cout to use long names:\n" << duration_fmt(duration_style::prefix)
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<< "high_resolution_clock::now() = " << high_resolution_clock::now() << '\n';
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#else
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cout << "\nSet cout to use long names:\n" << duration_long
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<< "high_resolution_clock::now() = " << high_resolution_clock::now() << '\n';
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#endif
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#if defined(BOOST_CHRONO_HAS_THREAD_CLOCK)
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cout << "\nthread_clock::now() = " << thread_clock::now() << '\n';
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#endif
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#if defined(BOOST_CHRONO_HAS_PROCESS_CLOCKS)
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cout << "\nprocess_real_cpu_clock::now() = " << process_real_cpu_clock::now() << '\n';
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#if BOOST_PLAT_WINDOWS_DESKTOP
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cout << "\nprocess_user_cpu_clock::now() = " << process_user_cpu_clock::now() << '\n';
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cout << "\nprocess_system_cpu_clock::now() = " << process_system_cpu_clock::now() << '\n';
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cout << "\nprocess_cpu_clock::now() = " << process_cpu_clock::now() << '\n';
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#endif
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#endif
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return 0;
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}
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