bug#1491: bug in ebrowse 22.1

bug#1491: bug in ebrowse 22.1

[Lars Rasmusson]

Hi,

ebrowse 22.1 crashes with a "Bus error on the following input:

struct a
{
};


However, ebrowse works fine with the following input:

struct a {
};

I'm running on a PPC Mac G4 on and OS X 10.5.5.

Cheers,
/Lars

bug#1491: bug in ebrowse 22.1

[richardeng]

try the last Emacs cvs version 23.0.60. Maybe your problem is solved.

# ebrowse --version 
ebrowse 23.0.60
Copyright (C) 2008 Free Software Foundation, Inc.
This program is distributed under the same terms as Emacs.

bug#1491: marked as done (bug in ebrowse 22.1 )

[Emacs bug Tracking System]

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Your message dated Wed, 14 Jan 2009 08:42:12 -0500
with message-id <87wscyt363.fsf@cyd.mit.edu>
and subject line Re: bug in ebrowse 22.1 and in 23.0.60
has caused the Emacs bug report #1491,
regarding bug in ebrowse 22.1 
to be marked as done.

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If this is not the case it is now your responsibility to reopen the
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-- 
1491: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=1491
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From: Lars Rasmusson <lars.rasmusson@gmail.com>
To: bug-gnu-emacs@gnu.org
Subject: bug in ebrowse 22.1
Date: Thu, 4 Dec 2008 15:29:55 +0100
Message-ID: <92AFFC27-186C-4473-9C85-8F8C00C311FF@gmail.com>


Hi,

ebrowse 22.1 crashes with a "Bus error on the following input:

struct a
{
};


However, ebrowse works fine with the following input:

struct a {
};

I'm running on a PPC Mac G4 on and OS X 10.5.5.

Cheers,
/Lars






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From: Chong Yidong <cyd@stupidchicken.com>
To: Lars Rasmusson <lars.rasmusson@gmail.com>
Cc: 1491-done@emacsbugs.donarmstrong.com
Subject: Re: bug in ebrowse 22.1 and in 23.0.60
Date: Wed, 14 Jan 2009 08:42:12 -0500
Message-ID: <87wscyt363.fsf@cyd.mit.edu>

Lars Rasmusson <lars.rasmusson@gmail.com> writes:

>> It looks wrong, indeed.  Does changing >= to > fix the crash for you?
>
> Yes it does.

I've checked in your fix.  Thanks.

bug#1491: bug in ebrowse 22.1

[Chong Yidong]

> Isn't this a bug?
> On line ebrowse.c:2037
>           for (--p; p >= inbuffer && *p != '\n'; --p)
>               ;
> I think it  should be
>           for (--p; p > inbuffer && *p != '\n'; --p)
>               ;
> otherwise p may point to one character before inbuffer.

It looks wrong, indeed.  Does changing >= to > fix the crash for you?