USAGE
   signed int sccdsperm(
           signed char *days,
           signed char *date,
           signed int format );

PROTOTYPE IN
   sc_clock.h

DESCRIPTION
   sccdsperm calculates the number of days in the month for the year
   specified in date. The date string style (format) must be valid.
   This function also senses leap year and will properly return 29 days for
   February.

   Date string styles:
   SC_GREGOR     mm/dd/yy
   SC_GREGORL    mm/dd/yyyy
   SC_JULIAN     yyyy/ddd
   SC_YMD        yyyymmdd
   SC_DMY        ddmmyy

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

   void main()
   {
     signed char d;

     sccdsperm(&d, "19890325", SC_YMD);
     printf("%d",d);
   }