[#1491] bug — Mathieu Bouchard <matju@...>
6 messages
2003/09/01
[#1492] non-blocking mode behavior (Re: bug)
— nobu.nokada@...
2003/09/01
Hi,
[#1512] New tests — Dave Thomas <Dave@...>
I was looking through the new test/ruby/* stuff just now, and notices
6 messages
2003/09/05
[#1533] GC disable / enable question — Torsten Rueger <torsten.rueger@...>
Moi,
7 messages
2003/09/17
[#1534] Re: GC disable / enable question
— nobu.nokada@...
2003/09/17
Hi,
[#1541] How to debug ? — Torsten Rueger <torsten.rueger@...>
Moi,
6 messages
2003/09/19
[#1542] Re: How to debug ?
— ts <decoux@...>
2003/09/19
>>>>> "T" == Torsten Rueger <torsten.rueger@hiit.fi> writes:
[#1551] Hashes as keys — "Nathaniel Talbott" <nathaniel@...>
I was just playing around with Hash#hash and discovered that you can't use a
13 messages
2003/09/23
[#1552] Re: Hashes as keys
— Jim Freeze <jim@...>
2003/09/23
On Wednesday, 24 September 2003 at 6:21:33 +0900, Nathaniel Talbott wrote:
[#1556] ostruct.rb patch — "Nathaniel Talbott" <nathaniel@...>
I've been finding OpenStruct to be very useful lately, and then I discovered
9 messages
2003/09/24
[#1557] Re: ostruct.rb patch
— "NAKAMURA, Hiroshi" <nahi@...>
2003/09/24
Hi, Nathaniel,
Re: Hashes as keys
From:
Jim Freeze <jim@...>
Date:
2003-09-23 22:19:29 UTC
List:
ruby-core #1553
On Wednesday, 24 September 2003 at 7:16:22 +0900, Jim Freeze wrote:
> On Wednesday, 24 September 2003 at 6:21:33 +0900, Nathaniel Talbott wrote:
> > I was just playing around with Hash#hash and discovered that you can't use a
> > Hash as a key in a hash:
> >
> > h = {{} => 'a'}
> > p h[{}]
> >
> > => nil
> >
> > Is this intentional? Since hash overrides #==, I expected it to do the same
> > with #hash, but it appears that it just uses Object#hash, which is different
> > for every instance.
> >
> > Thanks,
> >
I think the id of {} is changing.
irb(main):015:0> x = {}
=> {}
irb(main):016:0> h[x] = 4
=> 4
irb(main):017:0> h[x]
=> 4
irb(main):018:0> h[{}]
=> nil
--
Jim Freeze
----------
Workers of the world, arise! You have nothing to lose but your
chairs.