Hi, I'd like to access a C function from python, and the function takes input/output arrays. I'd probably use SWIG to do the interface to the C code. I found 2 options: -NumPtr module, to access Numeric arrays as pointers http://www.penzilla.net/tutorials/python/numptr/ - numpy.i, a SWIG interface file for NumPy that defines typemaps http://projects.scipy.org/scipy/numpy/browser/trunk/numpy/doc/swig/doc/numpy_swig.html
I'm not sure if there is significant differences between the 2 options (besides using either NumPy or Numeric). Does numpy.i interface file use pointers to access NumPy arrays? or does it make a copy of the array to pass it to/from the C function? I'm new to programming and I'd like to make sure of this. I need to use in C very large arrays frequently, so I want to avoid making copies of it, because speed will be an important factor. Thanks in advance! _______________________________________________ Join Excite! - http://www.excite.com The most personalized portal on the Web! _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
