Return the number of leap years between year1 and year2.
Declared in <bdlt_prolepticdateimputil.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.
number of leap years in [year1 .. year2]
| Name | Description |
|---|---|
| year1 | first year of the inclusive range |
| year2 | last year of the inclusive range |