From: Run Paint Run Run <runrun@...>
Date: 2009-05-30T22:27:25+09:00
Subject: [ruby-core:23637] Re: Expected Behaviour of Modifying an Iterator 	in the Block to Which it Yields?

On Sat, May 30, 2009 at 1:42 PM, Yukihiro Matsumoto <matz@ruby-lang.org> wrote:
> Hi,
>
> In message "Re: [ruby-core:23630] Expected Behaviour of Modifying an Iterator in the Block to Which it ��Yields?"
> �� ��on Sat, 30 May 2009 10:38:52 +0900, Run Paint Run Run <runrun@runpaint.org> writes:
>
> |While writing some specifications for RubySpec, I've encountered an issue that
> |I'd appreciate clarification on: What is the expected behaviour of an iterator
> |if it is modified inside of the block to which it yields?
>
> It is undefined behavior of iterators if the block modifies iterating
> object. ��It may crash or fall in to infinite loop.

Thank you, matz! That's just what I was looking for. :-)

-- 
Run Paint Run Run
<http://vim.runpaint.org/>