Re: Proposal: "smarter" set operations that take size into account for speed

[Stephen C. Gilardi]

On Jan 23, 2009, at 7:56 PM, e wrote:

        (ns my-ns
           (:use [clojure.set :exclude (difference)]
                    [clojure.contrib.set :only (difference)]))

Did you have to say ":exclude" or does the last thing override?

        user=> (use 'clojure.zip)

        user=>

--Steve

I had to say :exclude. :use makes a call to refer which will refuse to replace an existing entry in ns-map. You can see an example of this in a fresh repl: java.lang.IllegalStateException: replace already refers to: #'clojure.core/replace in namespace: user (NO_SOURCE_FILE:0)

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