issue BOGUS-FIXNUMS (initial draft)

[jpff%maths.bath.ac.uk@NSS.Cs.Ucl.AC.UK]

>>To draw an analogy, small bignums are likely to be considerably faster and
>>more efficient than large bignums.  Should we assign a special name to
>>bignums with less than N "bigits" simply because they're faster than bignums
>>that are larger than that?  How useful would having such a special name be
>>when both N and the size of the "bigit" vary from implementation to
>>implementation? 

But the factors are much much bigger.  I still am not conmvinced by
your arguments for getting rid of FIXNUMS.  Maybe they should be
better defined, but I cannot see a portable way of getting the effect
I get in FORTRAN, C, etc etc

==John