Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84 +2.11; site dcl-cs.UUCP
Path: utzoo!watmath!clyde!burl!ulysses!gamma!epsilon!zeta!sabre!bellcore!decvax!genrad!grkermi!panda!talcott!harvard!seismo!mcvax!ukc!icdoc!dcl-cs!stephen
From: stephen@dcl-cs.UUCP
Newsgroups: net.unix-wizards
Subject: Re: Bug iwith setjmp/longjmp on Vax
Message-ID: <210@dcl-cs.UUCP>
Date: Sun, 9-Jun-85 00:25:26 EDT
Article-I.D.: dcl-cs.210
Posted: Sun Jun  9 00:25:26 1985
Date-Received: Tue, 11-Jun-85 03:56:14 EDT
References: <44700008@gypsy.UUCP>
Reply-To: stephen@dcl-cs.UUCP (Stephen J. Muir)
Organization: Department of Computing at Lancaster University.
Lines: 29
Xpath: icdoc ivax

In article <44700008@gypsy.UUCP> rosen@gypsy.UUCP writes:
>This program was compiled under 4.2BSD on a VAX; it doesn't work the way it
>should (I get a 'longjmp botch' message).  If I compile the same exact
>program on a Sun running 4.2BSD it works fine.  I know that setjmp() and
>longjmp() work on a Vax, but why is this simple program giving me a problem?
>
>/* setjmp() - longjmp() test program */
>#include <setjmp.h>
>static jmp_buf env;
>int mode;
>
>main(){
>	foo();
>	longjmp(env, 1);
>}
>
>foo(){
>
>  mode = setjmp(env);
>  if (mode != 0) magic();
>}
It has always been my understanding that "longjmp()" is used to jump OUT of
routines - not INTO them!
-- 
Name:	Stephen J. Muir			Project:Alvey ECLIPSE Distribution
JANET:	stephen@uk.ac.lancs.comp	DARPA:	stephen%lancs.comp@ucl-cs
UUCP:	...!ukc!icdoc!dcl-cs!stephen	Phone:	+44 524 65201 Ext. 4599
Post:	Department of Computing, University of Lancaster, Bailrigg, Lancaster.
	LA1 4YR