Mark H Weaver scripsit: > What I want, indeed what I *require*, is the ability to memoize > procedures without having to worry that my code might produce the wrong > answers on some future implementation of R7RS.
1) So use a memoization comparison function that handles NaN, negative zero, and the infinities specially. 2) You can't be sure that an R7RS implementation will provide these anyway. 3) You can't be sure that an R7RS implementation will prove *any* inexact numbers. > Therefore, it appears likely that I will not be able to use R7RS. So be it. -- John Cowan http://ccil.org/~cowan [email protected] SAXParserFactory [is] a hideous, evil monstrosity of a class that should be hung, shot, beheaded, drawn and quartered, burned at the stake, buried in unconsecrated ground, dug up, cremated, and the ashes tossed in the Tiber while the complete cast of Wicked sings "Ding dong, the witch is dead." --Elliotte Rusty Harold on xml-dev _______________________________________________ Scheme-reports mailing list [email protected] http://lists.scheme-reports.org/cgi-bin/mailman/listinfo/scheme-reports
