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Merge pull request #628 from yumaikas/master

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Switch out `by` to `before?` in sort functions.
This commit is contained in:
Calvin Rose
2021-02-05 18:17:52 -06:00
committed by GitHub
parent be91414c7a 926b68d62e
commit c941e5a8f4
1 changed files with 9 additions and 9 deletions
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18
src/boot/boot.janet
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@@ -756,7 +756,7 @@
a
(if (not= (> b a) (> b c)) b c)))
(defn- sort-help [a lo hi by]
(defn- sort-help [a lo hi before?]
(when (< lo hi)
(def pivot
(median-of-three (in a hi) (in a lo)
@@ -764,8 +764,8 @@
(var left lo)
(var right hi)
(while true
(while (by (in a left) pivot) (++ left))
(while (by pivot (in a right)) (-- right))
(while (before? (in a left) pivot) (++ left))
(while (before? pivot (in a right)) (-- right))
(when (<= left right)
(def tmp (in a left))
(set (a left) (in a right))
@@ -773,14 +773,14 @@
(++ left)
(-- right))
(if (>= left right) (break)))
(sort-help a lo right by)
(sort-help a left hi by))
(sort-help a lo right before?)
(sort-help a left hi before?))
a)
(defn sort
"Sort an array in-place. Uses quick-sort and is not a stable sort."
[a &opt by]
(sort-help a 0 (- (length a) 1) (or by <)))
[a &opt before?]
(sort-help a 0 (- (length a) 1) (or before? <)))
(defn sort-by
``Returns `ind` sorted by calling
@@ -790,8 +790,8 @@
(defn sorted
"Returns a new sorted array without modifying the old one."
[ind &opt by]
(sort (array/slice ind) by))
[ind &opt before?]
(sort (array/slice ind) before?))
(defn sorted-by
``Returns a new sorted array that compares elements by invoking