Calling cpp from python/SWIG

[Gabriel Genellina]

En Tue, 13 Mar 2007 03:33:43 -0300, Frank <supervau at gmail.com> escribió:

> I want to parse an array M1 from python to a cpp function fct which
> returns an array M2.
>
> How can I do this best? Is SWIG appropriate or is there something
> else?

If you're going to call a single function, declare it with extern "C" (or  
write a wrapper function) and use ctypes from Python.
Try to keep the memory allocation in Python: instead of returning another  
array, make the function use the *same* input array, or give it -from  
Python- a previously allocated array.
ctypes comes with Python 2.5, and you can download and install it for  
previous versions too.

-- 
Gabriel Genellina