From: Hans Mackowiak <lists@...>
Date: 2013-05-22T00:52:09+09:00
Subject: Re: Enum#each issue

in my first example the "e" was printed with p

in this one it is not


next still returns the same values as without feed, only the function 
reacts different


in my sample the nil comes because i dont call m.feed after the second 
m.next


because i use the enumerator of the map! method,
feed & next does alter the Array itself

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