USAGE
   signed int sccdileap(
           signed int leap );

PROTOTYPE IN
   sc_clock.h

DESCRIPTION
   sccdileap tests the integer year passed to it in leap to see if
   it is a leap year.

RETURN VALUES
   SC_TRUE    is leap year
   SC_FALSE   is not leap year

EXAMPLE
   #include <stdio.h>
   #include <softc.h>
   #include <sc_clock.h>

   void main()
   {
     if (sccdileap(1989))
       puts("Leap Year!");
     else
       puts("Normal Year.");
   }