2 * difftime - compute the difference between two calendar times
4 /* $Id: difftime.c,v 1.5 1994/06/24 11:58:05 ceriel Exp $ */
9 difftime(time_t time1, time_t time0)
11 /* be careful: time_t may be unsigned */
12 if ((time_t)-1 > 0 && time0 > time1) {
13 return - (double) (time0 - time1);
15 return (double)(time1 - time0);