From: Matt Mower <matt.mower@...>
Date: 2005-01-08T19:17:22+09:00
Subject: Re: Strange behavior of hash key

On Sat, 8 Jan 2005 10:00:58 +0000, Matt Mower <matt.mower@gmail.com> wrote:
> Hi Traz,
> 
> On Sat, 8 Jan 2005 17:51:25 +0900, Traz <A.Reith@gmail.com > wrote:
> > >Because Hash uses Object#eql? to test for equality it makes them
> > >different keys and hence your example fails.
> >
> > Matt, string keys have the same behaviour, no ? :
> > >> "one".object_id
> > => 22476232
> > >> "one".object_id
> > => 22473868
> >
> 
> I think the answer here is that String redefines the eql? method to
> compare content instead of 'object_id' so String literal keys will
> work.
> 

Hmm... except that I tried a naive redefinition of Hash#eql? to:

def eql?( o ); self == o; end;

and the example still doesn't work.  Guess I'm just wrong ;-)

M

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