Re: [Scheme-reports] Bitwise operations on bytes Alex Shinn (29 Mar 2012 14:03 UTC)
Re: [Scheme-reports] Bitwise operations on bytes John Cowan (29 Mar 2012 16:15 UTC)
Re: [Scheme-reports] Bitwise operations on bytes Alan Watson (29 Mar 2012 16:40 UTC)
Re: [Scheme-reports] Bitwise operations on bytes John Cowan (29 Mar 2012 17:40 UTC)
Re: [Scheme-reports] Bitwise operations on bytes Per Bothner (29 Mar 2012 19:13 UTC)
Re: [Scheme-reports] Bitwise operations on bytes Aaron W. Hsu (29 Mar 2012 20:18 UTC)
Re: Bitwise operations on bytes Arthur A. Gleckler (29 Mar 2012 20:20 UTC)
Re: [Scheme-reports] Bitwise operations on bytes Aaron W. Hsu (29 Mar 2012 20:44 UTC)
Re: [Scheme-reports] Bitwise operations on bytes John Cowan (29 Mar 2012 20:30 UTC)
Re: [Scheme-reports] Bitwise operations on bytes Per Bothner (29 Mar 2012 20:44 UTC)
Re: [Scheme-reports] Bitwise operations on bytes Aubrey Jaffer (29 Mar 2012 17:56 UTC)
Re: [Scheme-reports] Bitwise operations on bytes John Cowan (29 Mar 2012 18:15 UTC)
Re: [Scheme-reports] Bitwise operations on bytes Alan Watson (29 Mar 2012 18:26 UTC)
Re: [Scheme-reports] Bitwise operations on bytes Aubrey Jaffer (29 Mar 2012 19:56 UTC)

Re: [Scheme-reports] Bitwise operations on bytes John Cowan 29 Mar 2012 17:40 UTC

Alan Watson scripsit:

> That is my specific question: did you consider including bitwise
> operation on bytes only?

We did not.  Feel free to make a small WG1-ish proposal for them, though
I doubt it will pass at this point.

I'll note that in Java and C#, boolean arrays are represented with one
(logical) bit per byte; on modern systems, the cost of setting bits is
high enough (read-modify-write) that a factor of 8 in space is well
worth paying.  This would not be true of embedded systems.

--
John Cowan <cowan@ccil.org>             http://www.ccil.org/~cowan
Today an interactive brochure website, tomorrow a global content
management system that leverages collective synergy to drive "outside of
the box" thinking and formulate key objectives into a win-win game plan
with a quality-driven approach that focuses on empowering key players
to drive-up their core competencies and increase expectations with an
all-around initiative to drive up the bottom-line. --Alex Papadimoulis

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