[C++-sig] wrapping global variables

[David Abrahams]

Dominique Devriese <dominique.devriese at student.kuleuven.ac.be> writes:

> Hi,
> ( please cc me as i'm not subscribed to the list)
> I'm playing around a bit with embedding python in a C++ program.  I'm
> using Boost.python for exposing the program's API to python, and the
> normal python interface ( Py_Initialize, PyRun_SimpleString and
> Py_Finalize ) for embedding.
> 
> So far this has proven surprisingly easy.  Especially Boost.Python has
> amazed me with its ease of use, so congratulations to everyone here
> who helped write it, as it most definitely rocks :)
> 
> But I have a question:  I would like to expose some global variables
> to python.  E.g. if I have a variable curbuf, I would like to be able
> to write ( in the embedded python interpreter, that is ) something
> like "len = curbuf.length();".  curbuf is of class Buffer, and this
> class has been exported very easily, but I don't seem to be able to
> find how to expose a global variable.  

Take a look at the documentation for scope.hpp. What you're asking
might be as easy as:

     scope().attr("len") = curbuf.length();

...if I understand what you're asking correctly.

-- 
                    David Abrahams
dave at boost-consulting.com * http://www.boost-consulting.com

Building C/C++ Extensions for Python: Dec 9-11, Austin, TX
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