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[REBOL] Re: subtracting binaries

From: maarten:vrijheid at: 3-Apr-2004 8:14

Hi Gregg,
> I know I have other things to be doing :), but this kept coming up in my > mind...wondering if doing binary math on bitsets would work.
I considered series! (or actually, block!). Bitset! is interesting as well. What did I do so far: result: copy [] parse enbase/base checksum/secure mold now/precise 2 [ any [ "1" (append result 1) | "0" (append result 0)]] This makes for easy computation with a for loop counting backwards (or doing it big-endian and going forward after reversing). As my problem only needs to initialize once the parse is OK. Now, back to a binary is also easy: debase/base rejoin result 16 Funny: > < and maximum-of and minimum-of work on binaries! So comparison is easy (it's also an important part of what I need).
> The following is very much a proof-of-concept, but it might be an idea > worth pursuing. >
Thanks! Now.... why do I want to do all this? --Maarten