This should not be downvoted, this sort of error is indeed a very easy one to make when dealing with the C pre-processor.
> Some of these are wrong to[o] <- that needs an extra 'o' > due to not having brackets. <- that one is fine > So it's just extremely lazy to[o]. <- that needs an extra 'o' too
'to' comes in two versons, 'too' and 'to', both have different meanings.
Good grief! Are we really so insufferable as software developers that we can't just appreciate a brilliant article about the work of a remarkable computer scientist without nitpicking every supposed "bad practice"?
The whole point of the piece seems completely lost on some readers. Yes, we all know that #define $(a,b) if(a)b;else is questionable. I don't need a crash course on C macros in the comments, thank you. The author already acknowledges that Whitney's style is controversial. Do we really need to keep rehashing that point in every comment, or can we finally focus on how all this unconventional code fits together beautifully to form a working interpreter?