diff -r 77efe51c6c9a -r 0f5732f0dc00 src/ucx/array.h
--- a/src/ucx/array.h	Thu Oct 03 10:55:39 2019 +0200
+++ b/src/ucx/array.h	Thu Oct 03 11:15:48 2019 +0200
@@ -188,6 +188,8 @@
  * If the destination capacity is insufficient, an automatic reallocation is
  * attempted.
  * 
+ * Note: if the destination array is uninitialized, the behavior is undefined.
+ * 
  * @param dest the array to copy to
  * @param src the array to copy from
  * @return zero on success, non-zero on reallocation failure.