LeapYear.c Update (bool)

          // Silvermistshadow
    // Program to tell if a year was/is/will be a leap year.
    //Tests: Year   is leap year?
    //      4000    yes
    //      4004    yes
    //      1999    no
    //      1900    no
    //      2000    yes
    //      1904    yes

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>

#define START_OF_GREG_CALENDAR 1582

bool isLeapYear (int year) {
    bool LeapYear = false;


// notice this only works if the year is >= 1582
   // because of the gregorian calendar stuff
   if (year<START_OF_GREG_CALENDAR) {
   LeapYear = false;
   }
   else {
            if ((year % 400) == 0) {
               LeapYear = true;
           } else {
                if ((year % 100) > 0) {
                     if ((year % 4) == 0) {
                          LeapYear = true;
                    } else {
                    LeapYear = false;
                    }
            } else {
                       LeapYear = false;
        }
    }
        }

   return LeapYear;
}

int main (int argc, const char * argv[]) {

   int year;

   printf ("please enter the year you are interested in\n");
   scanf("%d", &year);
   if (isLeapYear(year)) {
   printf("%d is a leap year!\n", year);
       } else {
       printf ("%d is not a leap year!\n", year);
       }


    return EXIT_SUCCESS;
    }