timer.hpp

#ifndef MPQC_UTIL_TIMER_HPP
#define MPQC_UTIL_TIMER_HPP
 
#include <iostream>
#include <boost/date_time/posix_time/posix_time_types.hpp>
 
namespace mpqc {
 
    struct timer {
    typedef boost::posix_time::time_duration value_type;
    boost::posix_time::ptime start_;
    typedef boost::posix_time::microsec_clock microsec_clock;
    timer() {
        this->reset();
    }
    void reset() {
        start_ = microsec_clock::universal_time();
    }
    boost::posix_time::time_duration duration() const {
        return microsec_clock::universal_time() - start_;
    }
    operator value_type() const {
        return duration();
    }
    operator double() const {
        return duration().total_microseconds()/1e6;
    }
    long total_seconds() const {
        return duration().total_seconds();
    }
    };
 
    inline std::ostream& operator << (std::ostream &os, const timer &t) {
    //os << boost::posix_time::to_simple_string(t.duration());
    os << double(t);
    return os;// << boost::posix_time::to_simple_string(t.duration());
    }
 
}
 
#endif // MPQC_UTIL_TIMER_HPP