/*  Simple Timing Routines
    Written 2016 by Eric Olson for Math/CS 466/666 */

static double tic_time;
void tic() {
    struct timeval tp;
    gettimeofday(&tp,0);
    tic_time=(double)tp.tv_sec+(double)tp.tv_usec*1.e-6;
}
double toc() {
    struct timeval tp;
    gettimeofday(&tp,0);
    return((double)tp.tv_sec+(double)tp.tv_usec*1.e-6)-tic_time;
}