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*To*: Aubrey Jaffer <agj@xxxxxxxxxxxx>*Subject*: Re: straw-man [was Re: arithmetic issues]*From*: Alan Watson <a.watson@xxxxxxxxxxxxxxxx>*Date*: Fri, 20 Jan 2006 11:43:03 -0600*Cc*: will@xxxxxxxxxxx, srfi-77@xxxxxxxxxxxxxxxxx, sperber@xxxxxxxxxxxxxxxxxxxxxxxxxxx*Delivered-to*: srfi-77@xxxxxxxxxxxxxxxxx*In-reply-to*: <20060120161325.321541B77C7@xxxxxxxxxxxxxxxxxxxxx>*Organization*: Centro de Radioastronomía y Astrofísica UNAM*References*: <E1Ez6Ga-0002aS-7Q@xxxxxxxxxxxxxxxxx> <20060120161325.321541B77C7@xxxxxxxxxxxxxxxxxxxxx>*User-agent*: Mozilla Thunderbird 1.0.7 (X11/20051113)

Aubrey Jaffer wrote:

Moreover, the R5RS generic arithmetic is difficult to implement as efficiently as purely fixnum or purely flonum arithmetic. "Interpreter-branch" disproves this asserertion as far as interpreters with immediate fixnums and boxed numbers are concerned.

if (all arguments are fixnums) deal with fixnums else if (all arguments are flonums) deal with flonums else deal with the general case

Regards, Alan -- Dr Alan Watson Centro de Radioastronomía y Astrofísica Universidad Astronómico Nacional de México

**References**:**Re: arithmetic issues***From:*William D Clinger

**Re: straw-man [was Re: arithmetic issues]***From:*Aubrey Jaffer

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