[#12073] Re: Ruby is much slower on linux when compiled with --enable-pthread? — "M. Edward (Ed) Borasky" <znmeb@...>

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9 messages 2007/09/04

[#12085] New array methods cycle, choice, shuffle (plus bug in cycle) — David Flanagan <david@...>

Four new methods have been added to Array the Ruby 1.9 trunk. I've got

81 messages 2007/09/06
[#18036] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Charles Oliver Nutter <charles.nutter@...> 2008/07/31

Restarting this thread because I missed it the first time around and

[#18037] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Yukihiro Matsumoto <matz@...> 2008/07/31

Hi,

[#18038] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — "Gregory Brown" <gregory.t.brown@...> 2008/08/01

On Thu, Jul 31, 2008 at 7:50 PM, Yukihiro Matsumoto <matz@ruby-lang.org> wrote:

[#18046] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Michael Neumann <mneumann@...> 2008/08/01

Gregory Brown wrote:

[#18048] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Charles Oliver Nutter <charles.nutter@...> 2008/08/01

Michael Neumann wrote:

[#18051] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — "David A. Black" <dblack@...> 2008/08/01

Hi --

[#18053] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — "Wilson Bilkovich" <wilsonb@...> 2008/08/01

On 8/1/08, David A. Black <dblack@rubypal.com> wrote:

[#18074] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — David Flanagan <david@...> 2008/08/01

Wilson Bilkovich wrote:

[#18080] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Yukihiro Matsumoto <matz@...> 2008/08/02

Hi,

[#18097] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — "Pit Capitain" <pit.capitain@...> 2008/08/03

2008/8/2 Yukihiro Matsumoto <matz@ruby-lang.org>:

[#18040] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Jim Weirich <jim.weirich@...> 2008/08/01

On Jul 31, 2008, at 7:33 PM, Charles Oliver Nutter wrote:

[#18056] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Thomas Enebo <Thomas.Enebo@...> 2008/08/01

Jim Weirich wrote:

[#18059] Re: New array methods cycle, choice, shuffle (plus bug in cycle) — Jim Weirich <jim.weirich@...> 2008/08/01

On Aug 1, 2008, at 1:53 PM, Thomas Enebo wrote:

[#12096] Next 1.8.6 on Sept. 22 — Urabe Shyouhei <shyouhei@...>

Hi all.

28 messages 2007/09/09

[#12201] how about actors implemented in ruby-core itself — hemant <gethemant@...>

Hi,

12 messages 2007/09/20

[#12248] arbitrary Unicode characters in identifiers? — David Flanagan <david@...>

12 messages 2007/09/26

[#12284] gc.c -- possible logic error? — Hugh Sasse <hgs@...>

I've been looking at Tom Copeland's memory allocation problem:

36 messages 2007/09/28
[#12329] Re: gc.c -- possible logic error? — Tanaka Akira <akr@...> 2007/10/01

In article <Pine.GSO.4.64.0709281302390.26570@brains.eng.cse.dmu.ac.uk>,

[#12305] Will 1.8.6 remain compiled with VC6? — "Luis Lavena" <luislavena@...>

Hello Core developers.

29 messages 2007/09/30
[#12306] Re: Will 1.8.6 remain compiled with VC6? — "Austin Ziegler" <halostatue@...> 2007/09/30

On 9/30/07, Luis Lavena <luislavena@gmail.com> wrote:

Re: New array methods cycle, choice, shuffle (plus bug in cycle)

From: Martin Duerst <duerst@...>
Date: 2007-09-07 09:49:26 UTC
List: ruby-core #12090
At 07:11 07/09/07, David Flanagan wrote:
>Four new methods have been added to Array the Ruby 1.9 trunk.  I've got a couple of questions and comments and one bug report:
>
>cycle is an iterator that is like calling each on the array within an infinite loop. Matz: have you considered generalizing this to be a method of Enumerable?

This would be great, but probably won't work, because Enumerable
(or something else) would have to store all the elements cicled
through, because that's not necessarily done by the class that
includes Enumerable.

>cycle has what I'd consider a bug: call it on an empty array and it will never return and will never invoke the associated block.
>
>     ruby1.9 -e '[].cycle {}'
>
>When I do this I can't even ^C to stop ruby. I have to kill -9 the process. I'd suggest that cycle simply return when the array is empty. That is, it cycles until the array becomes empty (which will be forever in most cases). 

That seems to make a lot of sense.

Regards,   Martin.



#-#-#  Martin J. Du"rst, Assoc. Professor, Aoyama Gakuin University
#-#-#  http://www.sw.it.aoyama.ac.jp       mailto:duerst@it.aoyama.ac.jp     


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