mp@mit-eddie.UUCP (Mark Plotnick) (12/26/83)
One of my favorite examples of C programming came from a compiler
course I took (AM295). The staff supplied some skeleton C programs
that we had to modify, including one that contained:
#define EXPRPTR struct exprnode *
typedef struct exprnode {
/*operator result*/
OPCLASS op;
EXPRPTR opleft;
EXPRPTR opright;
/*subprogram call*/
char *spname;
EXPRPTR spargs;
#undef EXPRPTR
} *EXPRPTR;
Groan. My all-time favorite is the following statement-and-comment,
taken verbatim from the PWB/Unix pexec() library routine:
argv[argc] = 2; /* don't ask why */
I still don't know what it did. Perhaps those of you who
participated in the argc[argv] discussion can help.
Mark