e6ccf0ce
 Hu Chunming
提交三方库
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// french.cpp ----------------------------------------------------------//
// Copyright 2010 Howard Hinnant
// Copyright 2011 Vicente J. Botet Escriba
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
// Adapted to Boost from the original Hawards's code
#include <iostream>
//#include <boost/chrono/chrono_io.hpp>
#include <boost/chrono/floor.hpp>
#include <boost/chrono/round.hpp>
#include <boost/chrono/ceil.hpp>
int main()
{
boost::chrono::milliseconds ms(2500);
std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
std::cout << boost::chrono::floor<boost::chrono::seconds>(ms).count()
<< " seconds\n";
std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
std::cout << boost::chrono::round<boost::chrono::seconds>(ms).count()
<< " seconds\n";
std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
std::cout << boost::chrono::ceil<boost::chrono::seconds>(ms).count()
<< " seconds\n";
std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
ms = boost::chrono::milliseconds(2516);
std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
typedef boost::chrono::duration<long, boost::ratio<1, 30> > frame_rate;
std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
std::cout << boost::chrono::floor<frame_rate>(ms).count()
<< " [1/30] seconds\n";
std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
std::cout << boost::chrono::round<frame_rate>(ms).count()
<< " [1/30] seconds\n";
std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
std::cout << boost::chrono::ceil<frame_rate>(ms).count()
<< " [1/30] seconds\n";
std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
return 0;
}
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