[omniORB] How to convert long integer in python to unsignedlong in CORBA

[Vito Bica]

Thank you Luke. I believe the problem is that we are using Python version 
2.3.4. I will try it again after we upgrade.

Vito

At 05:11 PM 10/27/2005, Luke Deller wrote:
>Hi Vito,
>
>On Thu, 2005-10-27 at 07:49 -0700, Vito Bica wrote:
> > I have defined the following value in python:
> >
> > x = 0x80000000
> >
> > Python seems to interpret this as an unsigned value, and therefore 
> makes it
> > a long integer (2147483648, one more than the maximum positive value
> > allowable for a signed 32 bit int).
>
>Yes, this is the behaviour of Python since version 2.4.  You get a
>negative value by putting a '-' sign at the front, just like for decimal
>literals.
>
> > I try to pass it as a value in a CORBA method that takes an argument of
> > CORBA type "Unsigned Long". Python balks, saying that it cannot convert 
> the
> > python Long Integer type to an integer. What I really want is to get that
> > value passed as-is as an argument to that CORBA method. Is there 
> anything I
> > can do in Python or with some omnipy fucntion that will map that 32 bit
> > value into the CORBA unsigned long argument?
>
>This should work already.  I just double checked, using Python 2.4.1 and
>omniORBpy 2.6, and I can pass 0x80000000 to a CORBA method with an IDL
>unsigned long argument.
>
>Can you give us instructions on how to replicate your error?
>
>Regards,
>Luke.
>
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