xtensor-python/test_python/main.cpp at master · Mbakaya/xtensor-python · GitHub

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

* *

* 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.cbegin(), sines.cend(), 0.0);

}

double readme_example2(double i, double j)

{

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

}

auto complex_overload(const xt::pyarray<std::complex<double>>& a)

{

return a;

}

auto no_complex_overload(const xt::pyarray<double>& a)

{

return a;

}

auto complex_overload_reg(const std::complex<double>& a)

{

return a;

}

auto no_complex_overload_reg(const double& a)

{

return a;

}

// Vectorize Examples

int add(int i, int j)

{

return i + j;

}

template <class T> std::string typestring() { return "Unknown"; }

template <> std::string typestring<uint8_t>() { return "uint8"; }

template <> std::string typestring<int8_t>() { return "int8"; }

template <> std::string typestring<uint16_t>() { return "uint16"; }

template <> std::string typestring<int16_t>() { return "int16"; }

template <> std::string typestring<uint32_t>() { return "uint32"; }

template <> std::string typestring<int32_t>() { return "int32"; }

template <> std::string typestring<uint64_t>() { return "uint64"; }

template <> std::string typestring<int64_t>() { return "int64"; }

template <class T>

inline std::string int_overload(xt::pyarray<T>& m)

{

return typestring<T>();

}

void dump_numpy_constant()

{

std::cout << "NPY_BOOL = " << NPY_BOOL << std::endl;

std::cout << "NPY_BYTE = " << NPY_BYTE << std::endl;

std::cout << "NPY_UBYTE = " << NPY_UBYTE << std::endl;

std::cout << "NPY_INT8 = " << NPY_INT8 << std::endl;

std::cout << "NPY_UINT8 = " << NPY_UINT8 << std::endl;

std::cout << "NPY_SHORT = " << NPY_SHORT << std::endl;

std::cout << "NPY_USHORT = " << NPY_USHORT << std::endl;

std::cout << "NPY_INT16 = " << NPY_INT16 << std::endl;

std::cout << "NPY_UINT16 = " << NPY_UINT16 << std::endl;

std::cout << "NPY_INT = " << NPY_INT << std::endl;

std::cout << "NPY_UINT = " << NPY_UINT << std::endl;

std::cout << "NPY_INT32 = " << NPY_INT32 << std::endl;

std::cout << "NPY_UINT32 = " << NPY_UINT32 << std::endl;

std::cout << "NPY_LONG = " << NPY_LONG << std::endl;

std::cout << "NPY_ULONG = " << NPY_ULONG << std::endl;

std::cout << "NPY_LONGLONG = " << NPY_LONGLONG << std::endl;

std::cout << "NPY_ULONGLONG = " << NPY_ULONGLONG << std::endl;

std::cout << "NPY_INT64 = " << NPY_INT64 << std::endl;

std::cout << "NPY_UINT64 = " << NPY_UINT64 << std::endl;

}

PYBIND11_PLUGIN(xtensor_python_test)

{

xt::import_numpy();

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

m.def("example1", example1);

m.def("example2", example2);

m.def("complex_overload", no_complex_overload);

m.def("complex_overload", complex_overload);

m.def("complex_overload_reg", no_complex_overload_reg);

m.def("complex_overload_reg", complex_overload_reg);

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();

});

m.def("int_overload", int_overload<uint8_t>);

m.def("int_overload", int_overload<int8_t>);

m.def("int_overload", int_overload<uint16_t>);

m.def("int_overload", int_overload<int16_t>);

m.def("int_overload", int_overload<uint32_t>);

m.def("int_overload", int_overload<int32_t>);

m.def("int_overload", int_overload<uint64_t>);

m.def("int_overload", int_overload<int64_t>);

m.def("dump_numpy_constant", dump_numpy_constant);

return m.ptr();

}

xtensor-python/test_python/main.cpp at master · Mbakaya/xtensor-python · GitHub

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