From: walter@...
Date: 2004-04-16T22:12:45+09:00
Subject: proposal Hash eql? , ==, ===

(Note:  I sent a similar email last night in response to Matz, but 
did not see it.  I apologize if this is basically a duplicate.)


Hash#== should be for would be content equals and not
content and default value/proc equal. I think that most common case 
for == would be content equality.

Hash#=== as Nobu pointed out === would make more sense to be a 
membership test, i.e., alias for Hash#key?.

Hash.eql? should be content equal and default value/block (i.e what 
the current == is now).  There is some precedence for this in Numeric 
where 1 == 1.0 is true but 1.eql?(1.0) is false.  I see this as being 
very similar circumstance.



Thanks for listening,


Walt

*****************************************************
Walter Szewelanczyk
IS Director
M.W. Sewall & CO.        email : walter@mwsewall.com     
259 Front St.            Phone : (207) 442-7994 x 128
Bath, ME 04530           Fax   : (207) 443-6284
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