DateTimeDaysInMonth
Description
Number of days in month month (1..12) of year, accounting for leap years.
Success
Returns 28..31. Returns 0 if month is outside 1..12.
Failure
Cannot fail (out-of-range month yields 0).
Usage example (Cross-references)
Usage examples (Cross-references)
- In
DateTime.c:103:
}
u32 DateTimeDaysInMonth(i32 year, u32 month) {
static const u8 lengths[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
if (month < 1 || month > 12)- In
DateTime.c:61:
static bool test_days_in_month(void) {
return DateTimeDaysInMonth(2024, 2) == 29 && DateTimeDaysInMonth(2023, 2) == 28 &&
DateTimeDaysInMonth(2024, 4) == 30 && DateTimeDaysInMonth(2024, 1) == 31 &&
DateTimeDaysInMonth(2024, 12) == 31 && DateTimeDaysInMonth(2024, 0) == 0 &&- In
DateTime.c:62:
static bool test_days_in_month(void) {
return DateTimeDaysInMonth(2024, 2) == 29 && DateTimeDaysInMonth(2023, 2) == 28 &&
DateTimeDaysInMonth(2024, 4) == 30 && DateTimeDaysInMonth(2024, 1) == 31 &&
DateTimeDaysInMonth(2024, 12) == 31 && DateTimeDaysInMonth(2024, 0) == 0 &&
DateTimeDaysInMonth(2024, 13) == 0;- In
DateTime.c:63:
return DateTimeDaysInMonth(2024, 2) == 29 && DateTimeDaysInMonth(2023, 2) == 28 &&
DateTimeDaysInMonth(2024, 4) == 30 && DateTimeDaysInMonth(2024, 1) == 31 &&
DateTimeDaysInMonth(2024, 12) == 31 && DateTimeDaysInMonth(2024, 0) == 0 &&
DateTimeDaysInMonth(2024, 13) == 0;
}- In
DateTime.c:64:
DateTimeDaysInMonth(2024, 4) == 30 && DateTimeDaysInMonth(2024, 1) == 31 &&
DateTimeDaysInMonth(2024, 12) == 31 && DateTimeDaysInMonth(2024, 0) == 0 &&
DateTimeDaysInMonth(2024, 13) == 0;
}
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