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Re: Volatile keyword

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On 14.12.2011 20:00, Patricia Shanahan wrote:
> On 12/14/2011 10:39 AM, Robert Klemme wrote:
>> On 12/13/2011 08:54 AM, Peter Duniho wrote:
>>> On 12/12/11 11:37 PM, Robert Klemme wrote:
>>>> [...]Bottom line is that the JVM spec does not make
>>>> any guarantees here (§17.7 see Lew's reference).
>>>
>>> I think it's worth being careful about "does not make any guarantees
>>> here". The implication of 17.7 is that there _is_ in fact a guarantee,
>>> for certain 64-bit fields marked as "volatile". Specifically, those
>>> which are of the type "double" or "long". This is true even on 32-bit
>>> systems.
>>
>> And what guarantee is there? Can you unambiguously formulate that and
>> provide reference to the JLS so everybody can check it?
>
> As indicated in the quoted material, the relevant section is
> "17.7 Non-atomic Treatment of double and long"
> http://java.sun.com/docs/books/jls/third_edition/html/memory.html#61803

Thank you Patricia and Daniel for helping my feeble eyes!

Kind regards

	robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

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Volatile keyword "raphfrk@gmail.com" <raphfrk@gmail.com> - 2011-12-12 04:51 -0800
  Re: Volatile keyword Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-12-12 14:31 +0000
    Re: Volatile keyword "raphfrk@gmail.com" <raphfrk@gmail.com> - 2011-12-12 06:52 -0800
  Re: Volatile keyword Lew <lewbloch@gmail.com> - 2011-12-12 06:34 -0800
  Re: Volatile keyword markspace <-@.> - 2011-12-12 10:00 -0800
    Re: Volatile keyword Tom Anderson <twic@urchin.earth.li> - 2011-12-12 18:41 +0000
      Re: Volatile keyword Patricia Shanahan <pats@acm.org> - 2011-12-12 11:43 -0800
    Re: Volatile keyword Roedy Green <see_website@mindprod.com.invalid> - 2011-12-12 11:15 -0800
      Re: Volatile keyword Robert Klemme <shortcutter@googlemail.com> - 2011-12-13 08:37 +0100
        Re: Volatile keyword Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2011-12-12 23:54 -0800
          Re: Volatile keyword Robert Klemme <shortcutter@googlemail.com> - 2011-12-14 19:39 +0100
            Re: Volatile keyword Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2011-12-14 10:59 -0800
            Re: Volatile keyword Patricia Shanahan <pats@acm.org> - 2011-12-14 11:00 -0800
              Re: Volatile keyword Robert Klemme <shortcutter@googlemail.com> - 2011-12-14 22:35 +0100
  Re: Volatile keyword Roedy Green <see_website@mindprod.com.invalid> - 2011-12-12 10:55 -0800

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