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List:       ruby-core
Subject:    Re: Wilderness:: The purpose of "ifnone" entry in RHash Structure
From:       Mauricio =?iso-8859-1?Q?Fern=E1ndez?= <mfp () acm ! org>
Date:       2005-08-27 9:05:12
Message-ID: 20050827090505.GC24520 () tux-chan
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On Sat, Aug 27, 2005 at 04:14:24PM +0900, Charles E. Thornton wrote:
> Question:  The purpose of "ifnone" entry in RHash Structure.
>                  Appears to be associated the Procedure Block ?
>                  Unclear what is going on!

It stores either the default value or the Proc invoked when a
non-existent key is used, in which case the Hash object is flagged
as HASH_PROC_DEFAULT. It's easy to see if you read for instance
rb_hash_initialize and rb_hash_default.

-- 
Mauricio Fernandez

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