On Friday, October 5, 2012 2:39:05 AM UTC+2, Ben wrote: > > user> [(== 0 0.0) (== 0.0 0.0M) (== 0.0M 0)] > [true true false] >
When passing two arguments to ==, == will be transitive. > user> [(== 0 0.0 0.0M) (== 0 0.0M 0.0) (== 0.0 0 0.0M) (== 0.0 0.0M 0) > (== 0.0M 0.0 0) (== 0.0M 0 0.0)] > [true false false false true false] > This is more of a problem with number equality, not the transitivity of ==. (== x1 x2 x3 ... xn) can be rewritten as (and (== x1 x2) (== x2 x3) ... (== xn-1 xn)). So if you compare (== x y z), then if x = y, then the result of (== x z) and (== y z) should be equivalent, considering the numbers are, well, numbers. I believe the issue lies within the bigdec-parsing, which seems to have two zeroes: (== 0M 0.0M) returns false, and their hashcode (0 and 1, respectively) are different. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
