leap_year

SFL
Version 2.10

#include "sfldate.h"
Bool
leap_year (int year)

Returns TRUE if the year is a leap year. You must supply a 4- digit value for the year: 90 is taken to mean 90 ad. Handles leap centuries correctly.

{
    return ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0);
}

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