Return the number of leap years between year1 and year2 inclusive.
Declared in <bdlt_posixdateimputil.h>
static
int
numLeapYears(
int year1,
int year2);Return the number of leap years occurring between the specified year1 and year2 (inclusive). The behavior is undefined unless 1 <= year1 <= 9999, 1 <= year2 <= 9999, and year1 <= year2.
count of leap years in the closed range
| Name | Description |
|---|---|
| year1 | inclusive lower bound year |
| year2 | inclusive upper bound year |