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_scienceDateLeapYear

Return if an year is a leap year or not.

Prototype :

fun [I] I

• I : any year : should be posterior or equal at 1582 (gregorian calendar)

Return : I 1 if the year is a leap year, 0 if not and nil if error

See also :

Example :

fun main ()=
	_showconsole;
	
	_fooId _scienceDateLeapYear 2012;	// 1
	0;;