krembot/src/sand_timer/SandTimer.cpp
void SandTimer::startOver()
{
    start_time_ = millis();
    if (!started_)
        started_ = true;
}
/* override original start time, and start timer again */
override original start time, and start timer again
override original start time and start timer again
void SandTimer::startOver()
{
    start_time_ = millis();
    if (!started_)
        started_ = true;
}
void SandTimer :: startOver ( ) { start_time_ = millis ( ) ; if ( ! started_ ) started_ = true ; }
override original start time, and start timer again
override original start time and start timer again