[C++-sig] Re: exceptions and multiple modules

[David Abrahams]

greg Landrum <greglandrum at mindspring.com> writes:

> [boost 1.30, g++ 3.2, redhat 8.0, python 2.2]
>
> We've been having strange order dependence problems when using
> exceptions and multiple extension modules.  I've attached an extremely
> simplified example that demonstrates the problem.
>
> The example includes two small extension modules, moda and modb, each
> of which defines a single function that throws an IndexError.  If I do:
>  >>> import modb
>  >>> import moda
>  >>> modb.tossitb()
> everything works fine (I get the expected IndexError)
>
> If, however, I reverse the import error:
>  >>> import moda
>  >>> import modb
>  >>> modb.tossitb()
> I get the dreaded "RuntimeError: unidentifiable C++ exception"
>
> Any ideas as to what might be going on here?

Yeah, some.  Could you try the enclosed patch and see whether it
helps?

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-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com