clojure.core/double-array

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Type: function Added: Clojure 1.0 Examples: 2 Runnable: 1

([size-or-seq] [size init-val-or-seq])

Creates an array of doubles

Examples

by shockbob on 2011-08-21 . May have evaluation errors. ▶

;; create a double array using double-array ;; and show it can be used with the standard Java functions ;; binarySearch and fill (def ds (double-array (range 3 20))) #'user/ds (type ds) [D (vec ds) [3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0] (java.util.Arrays/binarySearch ds 10.0) 7 (java.util.Arrays/fill ds 3 8 99.0) nil (vec ds) [3.0 4.0 5.0 99.0 99.0 99.0 99.0 99.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19 .0]

by ertugrulcetin on 2022-08-25 ▶

(double-array [1 2.2 3.5]) ;;=> #object["[D" 0x249e3e74 "[D@249e3e74"] (vec (double-array [1 2.2 3.5])) ;;=> [1.0 2.2 3.5]

See also

• clojure.core/doubles (1)
• clojure.core/aget (0)
• clojure.core/aset (1)
• clojure.core/aset-double

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