From:	Jeff Weeks <pweeks AT execulink DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: pointer trouble... need help
Date:	3 Mar 1997 22:54:16 GMT
Organization:	Internet News Service
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References:	<5f9tk7$2mg AT nr1 DOT toronto DOT istar DOT net> <331883e5 DOT 3893533 AT ursa DOT smsu DOT edu>
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

> >tbuf *buf_data;
> >bbuf *buf_data;
> 
> I'm not very familar with C++.  However, the above two points (in C) should be:
> 
> buf_data        *tbuf;
> buf_data        *bbuf;

Doe!  He he... I must have been out to lunch when I typed up this
message :)

> tbuf = bbuf will merely have two pointers to the same memory.  This will not
> copy the contents pointed to by bbuff into the memory allocated by new.  In
> fact, the memory allocated by the second new will no longer be accessable at
> all.  To copy memory blocks, the easiest way to is use one of the memory copy
> functions such as memcpy(tbuf,bbuff,video.max_x);

To slow for what I'm doing... it turns out I have it right afterall :) 
The thing is, I needed to swap tbuf and bbuf... not just assign bbuf to
tbuf... stupid mistake!

Jeff Weeks

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