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Re: Common Lisp solved this problem 20 years ago



Marcin 'Qrczak' Kowalczyk wrote:
Alan Watson <a.watson@xxxxxxxxxxxxxxxx> writes:


I aplaud this goal. However, rather than create this horrid mess of
type-specific operators, I would much prefer an approach that used
type declarations, perhaps:

  (with-flonum (x y) (/ x y))
  (with-fixnum (n m) (* n m))


Declaring types of identifiers is not enough, because it can't express
the wish to ignore any fixnum overflow and assume that the result will
fit in a fixnum.

It can - if we define it appropriately.  For example as in my
earlier proposal.
--
	--Per Bothner
per@xxxxxxxxxxx   http://per.bothner.com/