From:	Jeff Weeks <pweeks AT execulink DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: pointer trouble... need help
Date:	3 Mar 1997 22:54:26 GMT
Organization:	Internet News Service
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

> > tbuf *buf_data;
> > bbuf *buf_data;
> 
> This should be
> 
>     buf_data *tbuf;
>     buf_data *bbuf;

Yes I know... that was a typo :)

> Are you trying to copy the pointers or copy _what bbuf_ is pointing to into
> what tbuf is pointing to?

Yep, that's what I was trying to do.  However, I needed to swap tbuf and
bbuf... that was my problem... stupid mistake :)

> If it's the former, then the above is correct, but now what tbuf was
> originally pointing to is lost (you have no more references to it).  If you
> want to copy what is being referenced by those pointers, then you need
> 
>     memcpy(tbuf, bbuf, video.max_x*sizeof(buf_data));

Yep... that's how I originally had it setup... but it was too slow so I
just used pointers.  It's working now... yeah! :)

Jeff Weeks

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