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From: Chris Faylor <cgf AT cygnus DOT com>
Date: Wed, 31 May 2000 16:15:40 -0400
To: cygwin AT sourceware DOT cygnus DOT com
Subject: Re: Major bug -- Exception handling broken
Message-ID: <20000531161540.E24396@cygnus.com>
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References: <200005311805 DOT LAA13613 AT cygnus DOT com>
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In-Reply-To: <200005311805.LAA13613@cygnus.com>; from rdparker@butlermfg.com on Wed, May 31, 2000 at 01:03:05PM -0500

On Wed, May 31, 2000 at 01:03:05PM -0500, Parker, Ron wrote:
>> Exception handling in g++ is totally broken in the current Cygwin
>> release. Almost any program that uses exceptions crashes:
>> 
>> class Foo {};
>> int main() {
>>   try { throw Foo(); }
>>   catch (const Foo&) { return 0; }
>> }
>> 
>> $ g++ foo.cpp -o foo
>> $ ./foo
>> 0 [main] foo 1007 handle_exceptions: Exception: 
>> STATUS_ACCESS_VIOLATION
>> 5052 [main] foo 1007 stackdump: Dumping stack trace to 
>> foo.exe.stackdump
>
>I have verified that this is a bug.  Mumit Khan, the cygwin gcc guru, is out
>of the country and should be back mid-June.  In the mean time I will see
>what I can find.
>
>For the time being you may work around it by replacing g++ in the command
>line with gcc.  That produces a working executable.  My best guess at this
>time is that there is a problem with g++ in the specs file.  I will check it
>next.

I may be wrong but I believe that Mumit is well-aware that structured
exception handling is broken on Windows.

cgf

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