From: Frank Schmitt <invalid@...>
Date: 2003-12-08T18:32:03+09:00
Subject: Surprising(?) behaviour of the comma operator


Hi!

I just stumbled over a (at least for me) surprising behaviour
of the comma (',') operator:

  irb(main):001:0> a,b = 1,2
  [1, 2]
  irb(main):002:0> puts a.class, b.class
  Fixnum
  Fixnum
  nil

Ok, no surprises so far. Here we go:

  irb(main):003:0> a=1, b=2
  [1, 2]
  irb(main):004:0> puts a.class, b.class
  Array
  Fixnum
  nil

that is, a=1, b=2 creates an *Array* a instead of a Fixnum.
I don't think this is a bug, since others surely have spotted
this before me, but what's the rationale behind this?

kind regards
frank
-- 
Frank Schmitt 
4SC AG		phone: +49 89 700763-0
		e-mail: frankNO DOT SPAMschmitt AT 4sc DOT com