static void do_range_limit_days_relative(timelib_sll *base_y, timelib_sll *base_m, timelib_sll *y, timelib_sll *m, timelib_sll *d, timelib_sll invert)
{
timelib_sll leapyear;
timelib_sll month, year;
timelib_sll days;
do_range_limit(1, 13, 12, base_m, base_y);
year = *base_y;
month = *base_m;
/*
printf( "S: Y%d M%d %d %d %d %d\n", year, month, *y, *m, *d, days);
*/
if (!invert) {
while (*d < 0) {
dec_month(&year, &month);
leapyear = timelib_is_leap(year);
days = leapyear ? days_in_month_leap[month] : days_in_month[month];
/* printf( "I Y%d M%d %d %d %d %d\n", year, month, *y, *m, *d, days); */
*d += days;
(*m)--;
}
} else {
while (*d < 0) {
leapyear = timelib_is_leap(year);
days = leapyear ? days_in_month_leap[month] : days_in_month[month];
/* printf( "I Y%d M%d %d %d %d %d\n", year, month, *y, *m, *d, days); */
*d += days;
(*m)--;
inc_month(&year, &month);
}
}
/*
printf( "E: Y%d M%d %d %d %d %d\n", year, month, *y, *m, *d, days);
*/
}
static void dec_quarter(struct tm *tm)
{
dec_month(tm);
dec_month(tm);
dec_month(tm);
}
static inline void dec_settime_month(struct UI *me) {
dec_month(&me->settime);
}
static void trunc_quarter(struct tm *tm)
{
trunc_month(tm);
while (tm->tm_mon % 3 != 0)
dec_month(tm);
}
