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Aubrey Jaffer scripsit: > 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) Ah. However, I favor signaling fixnum operations, in which case (fxabs smallest-fixnum) should signal an error. -- You're a brave man! Go and break through the John Cowan lines, and remember while you're out there jcowan@xxxxxxxxxxxxxxxxx risking life and limb through shot and shell, www.ccil.org/~cowan we'll be in here thinking what a sucker you are! www.reutershealth.com --Rufus T. Firefly