if stream allows re-reading previous data,

The definition of a stream is you cannot re-read it. I could store the stream to disk, but the cost of repeatedly re-reading large volumes of data is prohibitive.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority". The enemy of (IT) success is complexity.
In the absence of evidence, opinion is indistinguishable from prejudice. Suck that fhit

In reply to Re^5: Algorithm inspiration required. (Further thoughts on rolling checksums) by BrowserUk
in thread Algorithm inspiration required. by BrowserUk

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