===IsLeapYear Function to determine if the given year is a Leap Year on the Gregorian (western) calendar===

The following is an MMBasic function to indicate that the given year is a [[https://en.wikipedia.org/wiki/Leap_year|leap year]].

It simply returns a Boolean (actually an integer) of 1 if the year is leap or 0 if not.

Faster version eliminates decision making

===Syntax:===
=IsLeapYear(year)

===Example Usage:===
DaysInYear=365+IsLeapYear(year)
If IsLeapYear(year) Then...

<code>
	Function IsLeapYear(n As Integer) As Integer
		IsLeapYear=((n Mod 4=0) And (n Mod 100 <>0)) Or (n Mod 400=0) 		
	End Function
</code>

===See Also:===
[[IsDate_and_IsTime_functions_VB_Work_A_Like|IsDate and IsTime functions ]]\\