(j3.2006) STAT= and integer kind

[Bill Long]

On Jul 8, 2014, at 1:40 AM, Bader, Reinhold <Reinhold.Bader at lrz.de> wrote:

> Hello Tobias, 
> 
> Not adding STAT to ATOMIC_CAS was an oversight of mine, sorry. I was too focused on getting the
> separation of the op/fetch_op right. The ATOMIC_CAS doesn't require a FETCH variant, but of course
> does need to have the STAT added. Since there was agreement to generally add STAT, one could consider
> fixing this an editorial issue, I suppose.


I?m agreeable to making this change as an editorial correction. 

Cheers,
Bill



> 
> Cheers 
> Reinhold
> 
>> -----Urspr?ngliche Nachricht-----
>> Von: j3-bounces at mailman.j3-fortran.org [mailto:j3-bounces at mailman.j3-
>> fortran.org] Im Auftrag von Tobias Burnus
>> Gesendet: Dienstag, 8. Juli 2014 07:39
>> An: j3 at mailman.j3-fortran.org
>> Betreff: Re: (j3.2006) STAT= and integer kind
>> 
>> Bill Long wrote:
>>> I agree with Malcolm's comments, particularly about the last one
>>> regarding minimal requirements on the sizes of integers appropriate
>>> for STAT arguments in intrinsics. I will be putting the text from the
>>> meeting papers into the next TS draft, including having default
>>> integer STAT arguments.
>> 
>> I also concur with the comment. I think many implementations will have a stat
>> value which does not fit into a 8byte-variable. If you use "default integer" in
>> the TS draft, we are back at consistency; I don't intent to implement
>> extensions before F2015.
>> 
>> Regarding the atomic intrinsics and STAT: Is there a specific reason that
>> ATOMIC_CAS does not have a STAT argument? At least J3/14-173r2 doesn't
>> list ATOMIC_CAS, contrary to the new atomic_[fetch_]op (op = add, and, or,
>> xor) and the old atomic_ref/atomic_define.
>> 
>> Tobias
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Bill Long                                                                       longb at cray.com
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