/***************************************************************************

* Copyright (c) 2016, Johan Mabille and Sylvain Corlay *

* *

* Distributed under the terms of the BSD 3-Clause License. *

* *

* The full license is in the file LICENSE, distributed with this software. *

****************************************************************************/

#include <numeric>

#include "xtensor/xmath.hpp"

#include "xtensor/xarray.hpp"

#define FORCE_IMPORT_ARRAY

#include "xtensor-python/pyarray.hpp"

#include "xtensor-python/pyvectorize.hpp"

namespace py = pybind11;

using complex_t = std::complex<double>;

// Examples

double example1(xt::pyarray<double>& m)

{

return m(0);

}

xt::pyarray<double> example2(xt::pyarray<double>& m)

{

return m + 2;

}

// Readme Examples

double readme_example1(xt::pyarray<double>& m)

{

auto sines = xt::sin(m);

return std::accumulate(sines.begin(), sines.end(), 0.0);

}

double readme_example2(double i, double j)

{

return std::sin(i) - std::cos(j);

}

// Vectorize Examples

int add(int i, int j)

{

return i + j;

}

PYBIND11_PLUGIN(xtensor_python_test)

{

import_array()

py::module m("xtensor_python_test", "Test module for xtensor python bindings");

m.def("example1", example1);

m.def("example2", example2);

m.def("readme_example1", readme_example1);

m.def("readme_example2", xt::pyvectorize(readme_example2));

m.def("vectorize_example1", xt::pyvectorize(add));

m.def("rect_to_polar", xt::pyvectorize([](complex_t x) { return std::abs(x); }));

m.def("compare_shapes", [](const xt::pyarray<double>& a, const xt::pyarray<double>& b) {

return a.shape() == b.shape();

});

return m.ptr();

}