From:	nospam DOT cbrooker AT iafrica DOT com (Marc Brooker)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Freeing memory from a tree
Date:	Tue, 27 Apr 1999 15:30:34 GMT
Organization:	UUNET Internet Africa
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To:	djgpp AT delorie DOT com
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I am busy writing a program similar to the one that Richard Dawkins
uses in 'The Blind Watchmaker', basically to draw trees based on a set
of genes. For this I use a 'linked tree', each bud, a structure has
pointers to two more, it's childeren. Starting with one bud, this
develops a tree, the buds store other information such as angle and
length.

How would I go about freeing the memory I allocated, all the methods I
use miss some of the buds, in the end I created an array storing
pointers to all the buds on the tree and free them in turn. I am very
sure that this is not the most efficient way to do this. Amongst other
things, I am storing two copies of everything in memory. What is a
better way?

Browsing on the GNU site I noticed that they had a program like this
on their page of projects for people to do, I e-mailed the gnu guy and
he told be that he wasn't interested unless I ported it to linux. My
program uses the Allegro library. How would I go about proting the
graphics routines? I have lots of documentation on porting unix
programs to dos but not vice versa. Please will someone show me the
light!

Thanks in advance for any help.
Marc.

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