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| Date: Tue, 18 Oct 2005 13:36:39 -0400 | From: "John.Cowan" <jcowan@xxxxxxxxxxxxxxxxx> | | Michael Sperber scripsit: | ... | > The fixnum, flonum, and inexact arithmetic come with a full deck of | > operations, including some that are defined in terms of integers (such | > as quotient+remainder, gcd and lcm), and others that are easily abused | > (such as fxabs). Should these be pruned? | | Yes, absolutely. (I'm not clear what the problem with fxabs might be.) In twos-complement fixnums there is one more negative number than there are positive numbers. Thus (abs most-negative-fixnum) and (- most-negative-fixnum) can only return a bignum: (+ 1 most-positive-fixnum)