On Jan 29, 6:03 am, janus <emekami...@gmail.com> wrote: > While reading Programming Clojure the other night I found this code > interesting (+), however, when I tried out (-) I got my fingers burnt. > Why this? Or did I do something wrong which has nothing to do with > the code in question?
You didn't do anything wrong, there is a definition of + with no arguments which just returns 0, but no definition of - with no arguments. Similarly (*) is defined as 1, but (/) is undefined. I guess there is no such thing as negative 0, then again there is no such thing as positive zero! Why would you call these functions like this with no arguments? --~--~---------~--~----~------------~-------~--~----~ 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 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 -~----------~----~----~----~------~----~------~--~---
