Message-ID:	<3E05BC7B.4040605@earthlink.net>
From:	Martin Ambuhl <mambuhl AT earthlink DOT net>
User-Agent:	Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.0.2) Gecko/20021120 Netscape/7.01
X-Accept-Language:	en-us, en, de, fr, ru, el, zh
MIME-Version:	1.0
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: dynamic gotos possible with djgpp?
References:	<au1u53$vdj$1 AT news DOT online DOT de>
Lines:	27
Date:	Sun, 22 Dec 2002 13:22:09 GMT
NNTP-Posting-Host:	67.210.12.252
X-Complaints-To:	abuse AT earthlink DOT net
X-Trace:	newsread2.prod.itd.earthlink.net 1040563329 67.210.12.252 (Sun, 22 Dec 2002 05:22:09 PST)
NNTP-Posting-Date:	Sun, 22 Dec 2002 05:22:09 PST
Organization:	EarthLink Inc. -- http://www.EarthLink.net
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

Lars O. Hansen wrote:
> void *x;     /* or long *x as addresses are just integers (but may conflict with C type checking) */
> x=label1;    /* label1 a label like a label for static gotos */
> goto x;
> possible?

     Check your documentation.  In the nodes "Local Labels" and "Labels
     as Values" in gcc.  info(under "C Extensions") you will find the
     discussion.Check this code :

#include <stdio.h>
int main(void)
{
     void *x = &&label1;
     goto *x;
   label0:puts("We hit label0, somehow");
     return 0;
   label1:puts("We got to label1, just where we were going!");
     return 0;
   label2:puts("We hit label2, somehow");
     return 0;
}

[output]
We got to label1, just where we were going!

- Raw text -