From:	Steven DOT Pemberton AT cwi DOT nl (Steven Pemberton)
Subject:	b18: cygwin_except_handler failure on deref NULL
30 Aug 1997 08:01:20 -0700 :
Approved:	cygnus DOT gnu-win32 AT cygnus DOT com
Distribution:	cygnus
Message-ID:	<UTC199708260951.LAA10319=steven.cygnus.gnu-win32@schoener.cwi.nl>
Original-To:	gnu-win32 AT cygnus DOT com
Original-Sender:	owner-gnu-win32 AT cygnus DOT com

I have a program that generates limits.h and float.h. It is also an
extremely good compiler tester. You can find it at:

	http://www.cwi.nl/~steven/enquire.html

An earlier version is part of the gcc distribution and apparently was
used to generate the float.h include file of b18.

Compiling and running it with b18 causes a run-time failure (and bash
hangs) with the message:

	(ENQUIRE.EXE 1011) In cygwin_except_handler

I don't know what the 1011 refers to, but if it's a line number, that
is not where it failed.

It failed at the point where the program looks to see if dereferencing
NULL causes a trap (which is done using setjmp, and dereferencing NULL).

Steven Pemberton, CWI, Amsterdam; Steven DOT Pemberton AT cwi DOT nl
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