Listing 3 Extract from winstl_systemtime_counter.h

/* /////////////////////////////////////////////////////////////
 * ...
 *
 * Extract from winstl_systemtime_counter.h
 *
 * Copyright (C) 2002, Synesis Software Pty Ltd.
 * (Licensed under the Synesis Software Standard Source License:
 *  http://www.synesis.com.au/licenses/ssssl.html)
 *
 * ...
 * ////////////////////////////////////////////////////////// */

// Operations
inline void systemtime_counter::start()
{
    ::GetSystemTimeAsFileTime(reinterpret_cast<LPFILETIME>(&m_start));
}

inline void systemtime_counter::stop()
{
    ::GetSystemTimeAsFileTime(reinterpret_cast<LPFILETIME>(&m_end));
}

// Attributes
inline systemtime_counter::interval_type systemtime_counter::get_seconds() const
{
    return get_period_count() / interval_type(10000000);
}

inline systemtime_counter::interval_type systemtime_counter::get_milliseconds() const
{
    return get_period_count() / interval_type(10000);
}

inline systemtime_counter::interval_type systemtime_counter::get_microseconds() const
{
    return get_period_count() / interval_type(10);
}