[omniORB] CORBA::Double type corrouption issue in python omniORB

[Amit]

Thanks 

  This is a good idea. I will define an internal object class that works with floats and see how that goes.

Amit

Sent from my iPad

On Apr 19, 2013, at 7:21 AM, Michael Powell <mwpowellhtx at gmail.com> wrote:

> Haven't dealt much with Omni yet. A little with CORBA, mostly with WCF
> and custom network layers.
> 
> I do work with ARM on a daily basis though. Floating point is an issue
> on ARM, whether it is soft, hard, or softfp. We have soft I think.
> 
> Without addressing the ORB itself, could you work around it and custom
> marshal, say a byte array (unsigned char) from your doubles?
> 
> That or possibly prefer floats to doubles. Or avoid floating point
> altogether if you don't need them.
> 
> HTH
> 
> On Fri, Apr 19, 2013 at 6:11 AM, Johnny Willemsen <jwillemsen at remedy.nl> wrote:
>> Hi,
>> 
>> Found the needed ARM documentation on the web. Looks TAO doesn't support the
>> mixed endian double on ARM. Amit, I would recommend you to run the ACE
>> tests/CDR_Array_Test on your target and see whether it works or not.
>> 
>> Best regards,
>> 
>> Johnny Willemsen
>> Remedy IT
>> http://www.theaceorb.nl
>> 
>> 
>> On 04/19/2013 10:57 AM, Duncan Grisby wrote:
>>> 
>>> On Fri, 2013-04-19 at 08:57 +0200, Johnny Willemsen wrote:
>>> 
>>>> I do have seen problems recently with TAO on ARM where endianess is
>>>> causing problems. What is the value you get on the TAO side? Have you
>>>> run the ACE/TAO test suite on the target?
>>> 
>>> 
>>> Some ARMs have a bizarre mixed endian double, where the 64-bit double is
>>> split into two 32-bit words in big-endian format but then the 32-bit
>>> words are encoded in little-endian format.
>>> 
>>> omniORB has specific support for handling thes mixed endian doubles on
>>> ARM. I don't know if TAO does, but I expect this is the cause of your
>>> problem -- either you need to configure TAO to use mixed-endian doubles,
>>> or TAO needs to grow support for them.
>>> 
>>> Cheers,
>>> 
>>> Duncan.
>> 
>> 
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