Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!usc!snorkelwacker!spdcc!ima!haddock!karl
From: karl@haddock.ima.isc.com (Karl Heuer)
Newsgroups: comp.lang.c
Subject: Re: %p and MSC
Message-ID: <17243@haddock.ima.isc.com>
Date: 6 Aug 90 19:57:21 GMT
References: <444@demott.COM>
Reply-To: karl@kelp.ima.isc.com (Karl Heuer)
Organization: Interactive Systems, Cambridge, MA 02138-5302
Lines: 18

In article <444@demott.COM> kdq@demott.COM (Kevin D. Quitt) writes:
>Those models with mixed addressing modes (C,M) cause a problem because
>it is impossible for printf to differentiate between code and data
>pointers.

No problem; the ANSI %p format is only intended to handle data pointers cast
to `void *'.  Function pointers, or uncast& data pointers, are beyond the
scope of this format specifier.

>Also, it seems to me that a program that tries to do anything significant
>with %p is probably not really very portable anyway.

Granted.

Karl W. Z. Heuer (karl@kelp.ima.isc.com or ima!kelp!karl), The Walking Lint
________
& Of course one needn't cast an expression which is already `void *', or
  (because of the same-representation clause) `char *'.