On Wed, Jun 3, 2009 at 8:09 AM, Jon Olav Vik <[email protected]> wrote: > > Somewhere inside pysundials.cvode.NVector is an array of double > screaming to get out [6]. However, Dag Sverre told me that passing it > to Cython may require converting between ctypes and Cython pointers.
if you have a 'ctypes' object , you can use ctypes.addressof() to get a integer (ctypes uses PyLong_FromVoidPtr()) containing the underlying pointer. Next, in Cython code you can use core Python C-API call PyLong_AsVoidPtr() to get the C-side pointer. Of course, if your odefun() is tiny, this will not alleviate the overhead of the Python layer. -- Lisandro Dalcín --------------- Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC) Instituto de Desarrollo Tecnológico para la Industria Química (INTEC) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) PTLC - Güemes 3450, (3000) Santa Fe, Argentina Tel/Fax: +54-(0)342-451.1594 _______________________________________________ Cython-dev mailing list [email protected] http://codespeak.net/mailman/listinfo/cython-dev
