clojure.core/rsubseq

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Type: function Added: Clojure 1.0 Examples: 2 Runnable: 0

([sc test key] [sc start-test start-key end-test end-key])

sc must be a sorted collection, test(s) one of <, <=, > or

=. Returns a reverse seq of those entries with keys ek for which (test (.. sc comparator (compare ek key)) 0) is true

Examples

by gstamp on 2010-10-12 . May have evaluation errors. ▶

(rsubseq (sorted-set 1 2 3 4 5) < 3) (2 1)

by TradeIdeasPhilip on 2016-05-15 . May have evaluation errors. ▶

;; If you use the longer form, with the end condition, there are some rules. ;; start-key should be <= end-key. start-test should be ">" or ">=". ;; end-test should be "<" or "<=". If follow these rules you'll get all the ;; values between start-key and end-key. If you don't you won't get an error, ;; but you probably won't get the result you expect. These rules are exactly ;; the same for subseq. ;; As expected, returns everything between 2 and 4, in reverse order. (rsubseq (sorted-set 1 2 3 4 5) >= 2 <= 4) ;; => (4 3 2) ;; Probably not what you expected! (rsubseq (sorted-set 1 2 3 4 5) <= 4 >= 2) ;; => (2 1) ;; As expected, returns everything between 2 and 4, in order. (subseq (sorted-set 1 2 3 4 5) >= 2 <= 4) ;; => (2 3 4) ;; Probably not what you expected! (subseq (sorted-set 1 2 3 4 5) <= 4 >= 2) ;; => (4 5)

See also

• clojure.core/subseq (0)

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