[pypy-dev] cppyy and callbacks

[Alex Stewart]

>
> For global functions, I've found helper with void* + cffi (the way you've
> described in your mail) enough.


Ok, so I think I'm really close to having something working now, except for
one thing:  I can't figure out how to access/pass a void pointer via cppyy?

If I declare a C++ function/method as taking a "void *" argument, I can't
figure out how to construct a Python object/value to pass to it that it
will accept (whatever I try (for example, when trying an int, such as what
cppyy.addressof returns), I just get "TypeError: 'CPPInstance' object
expected, got 'int' instead")..  Is there some special way to construct a
cppyy "void *" object or something I'm not aware of?

I also noticed when I tried defining a global "void *" variable, like so:

  void *voidp;

That any attempt to access it from Python yields:

>>>> cppyy.gbl.voidp
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: <class '__main__.::'> object has no attribute 'voidp'
(details: no converter available for '')


This feels like I must be missing something obvious here..?

--Alex
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