Per Bothner scripsit: > IEEE 754 specifies multiple NaN values. Scheme generally does > not care if there is a single value (bit pattern) for NaN, > or if there are multiple values: If there are multiple NaN > values, or just one, they are all equivalent in terms of Scheme > computation.
Added. > If there are multiple NaN values, they are all =. This is not the case: NaN is not = to any number, not even NaN. > However, the eqv? function is permitted (but not required) > to return #f when given two different NaN values. This is the subject of http://trac.sacrideo.us/wg/ticket/229 , which will be part of the upcoming fifth ballot. -- I suggest you solicit aid of my followers John Cowan or learn the difficult art of mud-breathing. [email protected] --Great-Souled Sam http://www.ccil.org/~cowan _______________________________________________ Scheme-reports mailing list [email protected] http://lists.scheme-reports.org/cgi-bin/mailman/listinfo/scheme-reports
