From: Francois Proulx <redmine@...>
Date: 2008-11-29T05:34:20+09:00
Subject: [ruby-core:20158] [Bug #800] Problem with Array class

Bug #800: Problem with Array class
http://redmine.ruby-lang.org/issues/show/800

Author: Francois Proulx
Status: Open, Priority: High

If you test this simple program, you will see why array should be dup on assignment ...

   a=1
   b=1
   c=[a,b]
  
   def foo(x)
     x[0] +=1
     x[1] +=1
   end

   d = c
   e = d
   f = e
 
   foo(f)

   p c[0],c[1]


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