USAGE
   signed int sccds2s(
           signed char *outstr,
           signed int outformat,
           signed char *instr,
           signed int informat );
PROTOTYPE IN
   sc_clock.h

DESCRIPTION
   sccds2s translates one ASCIIZ date string (instr of informat)
   to another (outstr of outformat). The input date string is
   converted to integers and checked for validity before being translated to
   a string again. This function replaces the sccdxlat function which has
   been removed from the library.

   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()
   {
     char day[10];

     sccds2s(day, SC_GREGOR, "19900516",SC_YMD);
     puts(day);
   }