pop/push, shift/unshift

[Robert Dober]

Here it is from over 2 years ago:

http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-core/5861

Great thx
message to Bob: no it did not degenerate I only felt that your code
did not at all allow to test this.

But the discussion is all I need to get into this and no more tests are needed.
Sorry if I was to harsh, somehow I interpreted your posts as cynical,
but that might have been my fault.
But no real problem.

Robert