[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Common Lisp solved this problem 20 years ago

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.

   __("<         Marcin Kowalczyk
   \__/       qrczak@xxxxxxxxxx
    ^^     http://qrnik.knm.org.pl/~qrczak/