From: ara.t.howard@...
Date: 2007-04-21T05:04:53+09:00
Subject: Re: once modifier (pickaxe book page 391)

On Sat, 21 Apr 2007, ChrisKaelin wrote:

>
> ara.t.how...@noaa.gov wrote:
>
>> one possible reason
>>
>>
>>    harp:~ > cat a.rb
>>    require 'once'
>>    class NotRobust
>>      def foo() p 42 end
>>      once :foo
>>    end
>>
>>    nr = NotRobust.new
>>    2.times{ nr.foo }
>>
>>
>>    harp:~ > ruby a.rb
>>    42
>>
>>
>>
>>    harp:~ > cat a.rb
>>    require 'once'
>>    class NotRobust
>>      def foo() p 42 end
>>      2.times{ once :foo }
>>    end
>>
>>    nr = NotRobust.new
>>    2.times{ nr.foo }
>>
>>
>>    harp:~ > ruby a.rb
>>    Segmentation fault (core dumped)
>>
>>
>>    harp:~ > ruby --version
>>    ruby 1.8.4 (2005-12-01) [i686-linux]
>>
>> regards.
>>
>> -a
> whoops, o.k. I see...
> but... why should I do this: 2.times { once :foo } ? o.k. I can
> imagine, ruby should allow everything without coredumping ;-)
>
>

-a
-- 
be kind whenever possible... it is always possible.
- the dalai lama