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-Fri Nov 9 16:08:35 2012 Sokolov Yura funny-falcon <funny.falcon@gmail.com>
+Fri Nov 9 16:08:39 2012 Sokolov Yura funny-falcon <funny.falcon@gmail.com>
+
+ * array.c (ary_ensure_room_for_push): make array really suitable for
+ queue. [Feature #6638]
+ when array is shared (which happens after Array#shift), and
+ ARY_SHARED_NUM == 1 (which is very often when array used as queue),
+ then make rb_ary_push push directly into shared array.
* array.c (rb_ary_modify): steal shared array's container when
ARY_SHARED_NUM == 1. [Feature #6638]