I think the preprocessor handles comments before #'s, and so the whole range between /* and */ is discarded. You can check this by 'cc -E <your_program>.c '. H.Mueller Nixdorf Computer D-4790 Paderborn Germany !USA:...mcvax!unido!nixpbe!hmueller.pad USA: ...uunet!linus!nixbur!nixpbe!hmueller.pad