libs/chrono/example/io_ex3.cpp

//  io_ex1.cpp  ----------------------------------------------------------//

//  Copyright 2010 Howard Hinnant
//  Copyright 2010 Vicente J. Botet Escriba

//  Distributed under the Boost Software License, Version 1.0.
//  See http://www.boost.org/LICENSE_1_0.txt

/*
This code was adapted by Vicente J. Botet Escriba from Hinnant's html documentation.
Many thanks to Howard for making his code available under the Boost license.

*/

#include <boost/chrono/chrono_io.hpp>
#include <sstream>
#include <iostream>
#include <boost/assert.hpp>

int main()
{
    using namespace boost::chrono;
    using std::cout;

    high_resolution_clock::time_point t0 = high_resolution_clock::now();
    std::stringstream io;
    io << t0;
    BOOST_ASSERT(!io.fail());
    cout << io.str() << '\n';
    BOOST_ASSERT(!io.fail());
    high_resolution_clock::time_point t1;
    io >> t1;
    BOOST_ASSERT(!io.fail());
    cout << io.str() << '\n';
    cout << t0 << '\n';
    cout << t1 << '\n';
    high_resolution_clock::time_point t = high_resolution_clock::now();
    cout << t << '\n';

    cout << "That took " << t - t0 << '\n';
    cout << "That took " << t - t1 << '\n';

    return 0;
}

//~ 50908679121461 nanoseconds since boot
//~ That took 649630 nanoseconds