The built-in Java comparison operators don't honor Comparable either.
In Clojure, it's about keeping (pure number) math fast.
If you are doing any nontrivial date work, I recommend you look at clj-
time (http://github.com/clj-sys/clj-time), a Clojure wrapper for Joda
Time. Then, if you really want "<" and ">" to work, you can define
them in your own namespace to wrap clj-time's "after?" and "before?".
Stu
I've been writing a program that requires the use of
java.util.Calendar and its descendent java.util.GregorianCalendar.
One thing I'd hoped to do was compare two Calendar objects with <,
but the compiler complained that the arguments to < didn't inherit
from Number which was a surprise to me because Calendar does inherit
from java.lang.Comparable which in java land would be sufficient to
enable it to be compared with other members of its class using the
built in java comparison operators. Since I know that clojure has
other operations that deal with comparable, I assume this is a
conscious decision, but I question why it should be so.
Regards,
Bill
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