;; affects a lot of floating point code.
; :negative-zero-is-not-zero
- ;; It's unclear to me what this does (but it was enabled in the code
- ;; that I picked up from Peter Van Eynde, called CONSTRAIN-FLOAT-TYPE
- ;; instead of SB-CONSTRAIN-FLOAT-TYPE). -- WHN 19990224
- :sb-constrain-float-type
-
;; This is set in classic CMU CL, and presumably there it means
;; that the floating point arithmetic implementation
;; conforms to IEEE's standard. Here it definitely means that the