[plt-scheme] BitField

From: Paulo Jorge O. C. Matos (pocm at mega.ist.utl.pt)
Date: Sat Nov 2 08:58:28 EST 2002

Just remembered...
What about if one creates a C bitfield structure and some fast, 
efficient operations and then calls it from PLTScheme and implements 
more highlevel functions on them. Do you feel the need for a thing like 

Best regards,


Paulo Jorge O. C. Matos wrote:
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> Hi all once again,
> Last week I was in need to control bits to implement RC4 private key 
> algorithm in PLTScheme and I was not able to find something that would 
> allow me to check bits and move them around, etc so I created a little 
> module of bitfield operations. Unfortunately I think it could be better 
> but had no better idea. The library is at:
> http://mega.ist.utl.pt/~pocm/bitfield.ss
> Any ideas, comments, corrections are welcome.
> Best regards,

Paulo J. Matos : pocm(_at_)mega.ist.utl.pt
Instituto Superior Tecnico - Lisbon
Software & Computer Engineering - A.I.
  - > http://mega.ist.utl.pt/~pocm
	Yes, God had a deadline...
		So, He wrote it all in Lisp!

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