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From: gwyn@brl-smoke.ARPA (Doug Gwyn )
Newsgroups: comp.lang.c
Subject: Re: ANSI C -- longjmp and volatiles
Message-ID: <5457@brl-smoke.ARPA>
Date: Mon, 15-Dec-86 13:02:18 EST
Article-I.D.: brl-smok.5457
Posted: Mon Dec 15 13:02:18 1986
Date-Received: Wed, 17-Dec-86 18:53:19 EST
References: <111@decvax.UUCP>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) )
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 10

In article <111@decvax.UUCP> minow@decvax.UUCP (Martin Minow) writes:
>I would suspect that, in some implementations, longjmp() cannot be called
>from interrupt or signal handlers.

You may be right.  I actually argued that there was
nothing whatsoever that could be guaranteed for signal
handlers, including executing anything whatsoever.  I
would like to hear from anyone who KNOWS for sure that
longjmp() canNOT be implemented on some reasonable machine
so that it can be safely invoked from a signal handler.