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Date: Tue, 10 Feb 2009 10:19:48 +0200
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Subject: Re: DJGPP termios
From: Gerrit van Niekerk <gerritvn AT gpvno DOT co DOT za>
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On Tue, Feb 10, 2009 at 10:03 AM, Blair Campbell <blairdude AT gmail DOT com>wrote:

> > which is causing the crash.  You can test to see if this is cause by
> > disabling null pointer protection in DOS:  before you run the test
> > program enter:  cwsdpmi -x
> > For the next program (and only one program) the null pointer
> > protection will be disabled.  If the application then runs under DOS,
> > it's a program bug that should be fixed.
>
> Ok yes, that is the problem then.  Thanks for the hint.  But it also
> leads me to believe that the problem might be in ncurses because
> dialog also crashes when using certain widgets.  Any hints as to how
> to find what is using a bad pointer?  I'm not really familiar with
> gdb.
>

It will be worth your while getting to know GDB. It will show you exactly
where the bad pointer is.

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<div class=3D"gmail_quote">On Tue, Feb 10, 2009 at 10:03 AM, Blair Campbell=
 <span dir=3D"ltr">&lt;<a href=3D"mailto:blairdude AT gmail DOT com">blairdude AT gma=
il.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"=
border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; paddi=
ng-left: 1ex;">
<div class=3D"Ih2E3d">&gt; which is causing the crash. &nbsp;You can test t=
o see if this is cause by<br>
&gt; disabling null pointer protection in DOS: &nbsp;before you run the tes=
t<br>
&gt; program enter: &nbsp;cwsdpmi -x<br>
&gt; For the next program (and only one program) the null pointer<br>
&gt; protection will be disabled. &nbsp;If the application then runs under =
DOS,<br>
&gt; it&#39;s a program bug that should be fixed.<br>
<br>
</div>Ok yes, that is the problem then. &nbsp;Thanks for the hint. &nbsp;Bu=
t it also<br>
leads me to believe that the problem might be in ncurses because<br>
dialog also crashes when using certain widgets. &nbsp;Any hints as to how<b=
r>
to find what is using a bad pointer? &nbsp;I&#39;m not really familiar with=
<br>
gdb.<br>
</blockquote><div><br>It will be worth your while getting to know GDB. It w=
ill show you exactly where the bad pointer is. <br></div></div><br>

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