[Numpy-discussion] Add pybind11 to docs about writing binding code

[Neal Becker]

The only way I've seen xtensor used is *with* pybind11

On Fri, Aug 17, 2018 at 5:45 PM Robert Kern <robert.kern at gmail.com> wrote:

> On Fri, Aug 17, 2018 at 2:00 AM Hans Dembinski <hans.dembinski at gmail.com>
> wrote:
>
>> Hi Sylvain,
>>
>> On 16. Aug 2018, at 13:29, Sylvain Corlay <sylvain.corlay at gmail.com>
>> wrote:
>>
>> Actually, xtensor-python does a lot more in terms of numpy bindings, as
>> it uses the C APIs of numpy directly for a number of things.
>>
>> Plus, the integration into the xtensor expression system lets you do
>> things such as view / broadcasting / newaxis / ufuncs directly from the C++
>> side (and all that is in the cheat sheets).
>>
>> ok, good, but my point was different. The page in question is about
>> Python as a glue language. The other solutions on that site are general
>> purpose binding solutions for any kind of C++ code, while xtensor-python is
>> xtensor-specific. xtensor in turn is a library that mimics the numpy API in
>> C++.
>>
>
> Even if you don't use the numpy-mimicking parts of the xtensor API,
> xtensor-python is a probably a net improvement over pybind11 for
> communicating arrays back and forth across the C++/Python boundary. Even if
> the rest of your C++ code doesn't use xtensor, you could profitably use
> xtensor-python at the interface. Also, though the article is generally
> framed as using Python as a glue language (i.e. communicating with existing
> C/C++/Fortran code), it is also relevant for the use case where you are
> writing the C/C++/Fortran code from scratch (perhaps just accelerating
> small kernels or whatever). Talking about the available options for that
> use case is perfectly on-topic for that article.
>
> You don't have to be the one that writes it, though, if you just want to
> cover pybind11.
>
> --
> Robert Kern
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