From:	fred AT genesis DOT demon DOT co DOT uk (Lawrence Kirby)
Newsgroups:	comp.lang.c,comp.os.msdos.djgpp
Subject:	Re: Casting void pointers
Date:	Mon, 22 Jun 98 10:33:56 GMT
Organization:	none
Message-ID:	<898511636snz@genesis.demon.co.uk>
References:	<6mkaos$k7o AT dfw-ixnews6 DOT ix DOT netcom DOT com> <358DC1FA DOT 443E297D AT cs DOT com>
Reply-To:	fred AT genesis DOT demon DOT co DOT uk
Lines:	26
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

In article <358DC1FA DOT 443E297D AT cs DOT com> fighteer AT cs DOT com "John M. Aldrich" writes:

...

>#include <stdio.h>
>
>int foo( int x )
>{
>    return x + 10;
>}
>
>int main( void )
>{
>    void *vp = foo;

Your compiler should have generated a diagnostic for this. The C language
requires a cast to convert between void * and function pointers (in both
directions). Note that C doesn't guarantee that a void * object can properly
hold a funciton pointer. You should avoid doing this.

-- 
-----------------------------------------
Lawrence Kirby | fred AT genesis DOT demon DOT co DOT uk
Wilts, England | 70734 DOT 126 AT compuserve DOT com
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