in src/dt.c [447:461]
dt_status_t dt_representation_day_of_year(const dt_representation_t *representation, int *day_of_year)
{
unsigned i = 0;
// TODO: Julian calendar support - now only Gregorian is supported
if (!representation || !day_of_year) {
return DT_INVALID_ARGUMENT;
}
*day_of_year = 0;
for (i = 1; i < representation->month; ++i) {
*day_of_year += (i == 2 && dt_is_leap_year(representation->year)) ? 29 : month_days[i];
}
*day_of_year += representation->day;
return DT_OK;
}