stupid C preprocessor question

[Zack Weinberg]

"Steven G. Kargl" <kargl@troutmask.apl.washington.edu> writes:

> I learned K&R C several years ago and now have a need
> to return to programming in C.  Is the following legal C?

The only bit of your code that is objectionable is this bit

> #if 0
>    Can't do this
> #endif

which provokes undefined behavior, because of the unmatched single
quote.  Use a real comment (/* Can't do this */) instead.

zw