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Binary file difference

I am looking for an example or a resource on how to compare two versions of
the same file and create a third file that contains only the difference. I
then want to be able to take the first file and apply the third file to it
to re-create the second file. There are some backup programs that do
something similar and I am curious as to how this works.

Thanks for any suggestions,
Yancey

Nov 15 '05 #1
1 1941
Look at http://sourceforge.net/projects/xdelta, that page is a link to a C
implementation of the XDelta algorithm
(http://heanet.dl.sourceforge.net/sou...delta/xdfs.pdf, section 3).

Have fun,
-JG
Nov 15 '05 #2

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