From: Robert Klemme <shortcutter@...>
Date: 2006-11-25T04:53:00+09:00
Subject: Re: Problems with String#hash

On 24.11.2006 11:18, George Moschovitis wrote:
> Dear devs,
> 
> I am facing a very NASTY problem with String#hash
> 
> Here is the same code that I run on 3 different computers:
> 
> root@kosh:~ # irb
> irb(main):001:0> "User".hash
> => 690465448
> irb(main):002:0> VERSION
> => "1.8.2"
> 
> C:\Documents and Settings\drak>irb
> irb(main):001:0> "User".hash
> => 690465448
> irb(main):002:0> VERSION
> => "1.8.4"
> 
> http://tryruby.hobix.com/
> Interactive ruby ready.
>>> "User".hash
> => 690465448
>>> VERSION
> => "1.8"
> 
> root@victory:~# irb
> irb(main):001:0> "User".hash
> => -1457018200
> irb(main):002:0> VERSION
> => "1.8.4"
> 
> Please nottice that on the last case I get a different result! Any
> idea why this happens?

There is no guarantee that String#hash will behave the same in all 
versions of Ruby.  If this is a problem for you then you probably have 
an application design problem.  Why is this behavior a problem for you?

Kind regards

	robert