I don't understand your point. Why does double-scanning (and copying a megabyte) prevent "double matches"? Copying just the last 3 bytes (not 4!) to the beginning and then reading the next meg into the scalar after that would avoid the copy, and it can't match twice because the 4 bytes in the pattern are all different so matches can't overlap. Even without that restriction, the "junking" of previous found matches would take care of it.

In reply to Re: Re: How do I search this binary file? by John M. Dlugosz
in thread How do I search this binary file? by John M. Dlugosz

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