dungba88 commented on code in PR #12844:
URL: https://github.com/apache/lucene/pull/12844#discussion_r1409177467
##########
lucene/core/src/java/org/apache/lucene/util/ArrayUtil.java:
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@@ -330,6 +330,29 @@ public static int[] growExact(int[] array, int newLength) {
return copy;
}
+ /**
+ * Returns an array whose size is at least {@code minLength}, generally
over-allocating
+ * exponentially, but never allocating more than {@code maxLength} elements.
+ */
+ public static int[] growInRange(int[] array, int minLength, int maxLength) {
+ if (array.length >= minLength) {
+ return array;
+ }
+ if (minLength > maxLength) {
+ throw new IllegalArgumentException(
+ "requested minimum array length "
+ + minLength
+ + " is larger than requested maximum array length "
+ + maxLength);
+ }
+
+ int potentialLength = oversize(minLength, Integer.BYTES);
+ if (potentialLength > maxLength) {
Review Comment:
I think `growExact(array, Math.min(potentialLength, maxLength))` would be
clearer?
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