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I have a question about the usage of “map” – Here is the piece of code,
(for-each
(lambda (x) (if (member x sb-id-list) (set! si-exists? #t)))
(append (map thread-id sb1-thread) (map thread-id sb2-thread)))
First of all, I’m sure this code is working correctly – It’s taken from the source code of a solver. What I don’t understand is that I don’t see a “procedure” for the “map” here? Is this some witty usage of map I don’t know of? Thanks.
My assumption is that “thread-id” is some sort of procedure.