*****Listing 9*****

    Text File:

        TOOBIG  Value cannot be larger then %d
        BADNAME The name %s is not defined
        PUNT    Unknown error, aborting

    Sample output of special program:

        header1:
                enum errkind { TOOBIG, BADNAME, PUNT };
        header2:
                char *errstring[] = {
                        "Value cannot be larger then %d",
                        "The name %s is not defined",
                        "Unknown error, aborting",
                        };

    Sample Usage:

  	                               /* ANSI prototype */
        extern void error(enum errkind, char*);
        error(TOOBIG, (char*)MAX);
        error(BADNAME, str);
        error(PUNT, 0); /* the 0 is ignored in this case */

    The error() function is a small printf-like function
    which is very easy to write.

