[SciPy-User] Examples how to call NumPy from C++

[Chris Barker]

On Tue, Aug 11, 2015 at 3:54 AM, Alexander Kalinin <alec.kalinin at gmail.com>
wrote:

> Dear SciPy users,
>
> I have some software in C++. A want to call NumPy python procedures from
> C++, for example some matrix multiplication procedures.
>
> Does anybody know some examples how to pass arrays from C++ to NumPy and
> call procedure like matrix multiplication?
>

Step one -- figure out how to call Python from C++ -- look for "embedding"
-- though you may be better off  hosting the process with Python, and and
callig teh C++ code from there, it's generally easier.

Step two-- figure out how to get C+= and Python (numpy) to "talk" to each
other.

This can be done with the C API and numpy's C API -- and it is not too
hard, but most of us find it easier and less error-prone to use a tool for
the interface.

I think Cython is the best option, but as C++ person, you may prefer
boost-python

Have fun!

-CHB





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Christopher Barker, Ph.D.
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