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43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
// example/stopwatch_example.cpp ---------------------------------------------------//
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// Copyright Beman Dawes 2006, 2008
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// Copyright 2009-2011 Vicente J. Botet Escriba
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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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// See http://www.boost.org/libs/chrono/stopwatches for documentation.
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//#include <iostream>
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#include <boost/chrono/stopwatches/simple_stopwatch.hpp>
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#include <boost/chrono/stopwatches/reporters/stopwatch_reporter.hpp>
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#include <boost/chrono/stopwatches/reporters/system_default_formatter.hpp>
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#include <boost/chrono/chrono_io.hpp>
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#include <cmath>
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using namespace boost::chrono;
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int f1(long j)
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{
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std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
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stopwatch_reporter<simple_stopwatch<> > sw;
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std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
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for ( long i = 0; i < j; ++i )
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std::sqrt( 123.456L ); // burn some time
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std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
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return 0;
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}
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int main()
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{
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std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
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stopwatch_reporter<simple_stopwatch<> > sw;
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std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
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f1(1000);
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std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
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f1(2000);
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std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
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f1(3000);
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std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
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return 0;
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}
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