static void
normalize_struct_tm (struct tm* time)
{
gint year = time->tm_year + 1900;
gint last_day;
/* Gregorian_date throws if it gets an out-of-range year
* so clamp year into gregorian_date's range.
*/
if (year < 1400) year += 1400;
if (year > 9999) year %= 10000;
normalize_time_component (&(time->tm_sec), &(time->tm_min), 60, 0);
normalize_time_component (&(time->tm_min), &(time->tm_hour), 60, 0);
normalize_time_component (&(time->tm_hour), &(time->tm_mday), 24, 0);
normalize_month (&(time->tm_mon), &year);
// auto month_in_range = []int (int m){ return (m + 12) % 12; }
while (time->tm_mday < 1)
{
normalize_month (&(--time->tm_mon), &year);
last_day = gnc_date_get_last_mday (time->tm_mon, year);
time->tm_mday += last_day;
}
last_day = gnc_date_get_last_mday (time->tm_mon, year);
while (time->tm_mday > last_day)
{
time->tm_mday -= last_day;
normalize_month(&(++time->tm_mon), &year);
last_day = gnc_date_get_last_mday (time->tm_mon, year);
}
time->tm_year = year - 1900;
}
static void
normalize_month(int *month, int *year)
{
++(*month);
normalize_time_component(month, year, 12, 1);
--(*month);
}
static void
normalize_struct_tm (struct tm* time)
{
gint year = time->tm_year + 1900;
gint last_day;
time64 secs;
++time->tm_mon;
normalize_time_component (&(time->tm_sec), &(time->tm_min), 60, 0);
normalize_time_component (&(time->tm_min), &(time->tm_hour), 60, 0);
normalize_time_component (&(time->tm_hour), &(time->tm_mday), 24, 0);
normalize_time_component (&(time->tm_mon), &year, 12, 1);
while (time->tm_mday < 1)
{
last_day = gnc_date_get_last_mday (normalize_month (--time->tm_mon), year);
time->tm_mday += last_day;
normalize_time_component (&(time->tm_mon), &year, 12, 1);
}
last_day = gnc_date_get_last_mday (normalize_month (time->tm_mon), year);
while (time->tm_mday > last_day)
{
++time->tm_mon;
time->tm_mday -= last_day;
normalize_time_component (&(time->tm_mon), &year, 12, 1);
last_day = gnc_date_get_last_mday (normalize_month (time->tm_mon), year);
}
time->tm_year = year - 1900;
}
