From: Robert Klemme <shortcutter@...>
Date: 2013-02-18T02:23:56+09:00
Subject: Re: How the string concatenation operator hackes(modifies) the string contents of frozen array?

On Sat, Feb 16, 2013 at 9:46 PM, Love U Ruby <lists@ruby-forum.com> wrote:

> That's why array#replace allowed on the frozen array, but none of the

It isn't

irb(main):001:0> a=10.times.to_a.freeze
=> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
irb(main):002:0> a.replace [10,20]
RuntimeError: can't modify frozen Array
        from (irb):2:in `replace'
        from (irb):2
        from /usr/bin/irb:12:in `<main>'

> array#pop,array#push,array#rotate! etc not allowed.

Cheers

robert

-- 
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