Re: How to differentiate two files without checking whole content?

"Ben Voigt" <rbv@nospam.nospam>
Tue, 26 Dec 2006 14:21:15 -0600
"Bruno van Dooren [MVP VC++]" <> wrote
in message news:egll2EQKHHA.2236@TK2MSFTNGP02.phx.gbl...

I have two files with same name but content is different. I can
differentiate files with the based on this assumption.My assumption is
name, file size and last modified date. but for some files have same
same size and same last modified date. I think, I have to add some more
parameters like
size, name and date. I didnt get any parameters. Can any body give an
on this?

like file attributes..etc.

How are the files created? by your app, or by a separate entity?

If you don't have control over file creation, you cannot be sure that you
will not get duplicates unless you do a binary comparison of the file

If your concern is transferring the data over a network, you may compare a
hash code instead of transferring the entire content. Each end still needs
to read the entire file to compute the hash code though.


Kind regards,
   Bruno van Dooren
   Remove only "_nos_pam"

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