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GeezerVison is showing github.com — xtensor-python/test_python/main.cpp at master · pelson/xtensor-python Expand file tree/ Copy pathmain.cppMore file actions 220 lines (181 loc) · 6.17 KB / Copy pathmain.cppFile metadata and controls220 lines (181 loc) · 6.17 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 /*************************************************************************** * 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/pytensor.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; } struct A { double a; int b; char c; std::array<double, 3> x; }; struct B { double a; int b; }; xt::pyarray<A> dtype_to_python() { A a1{123, 321, 'a', {1, 2, 3}}; A a2{111, 222, 'x', {5, 5, 5}}; return xt::pyarray<A>({a1, a2}); } xt::pyarray<B> dtype_from_python(xt::pyarray<B>& b) { if (b(0).a != 1 || b(0).b != 'p' || b(1).a != 123 || b(1).b != 'c') { throw std::runtime_error("FAIL"); } b(0).a = 123.; b(0).b = 'w'; return b; } void char_array(xt::pyarray<char[20]>& carr) { if (strcmp(carr(2), "python")) { throw std::runtime_error("TEST FAILED!"); } std::fill(&carr(2)[0], &carr(2)[0] + 20, 0); carr(2)[0] = 'c'; carr(2)[1] = '+'; carr(2)[2] = '+'; carr(2)[3] = '\0'; } void row_major_tensor(xt::pytensor<double, 3, xt::layout_type::row_major>& arg) { if (!std::is_same<decltype(arg.begin()), double*>::value) { throw std::runtime_error("TEST FAILED"); } } void col_major_array(xt::pyarray<double, xt::layout_type::column_major>& arg) { if (!std::is_same<decltype(arg.template begin<xt::layout_type::column_major>()), double*>::value) { throw std::runtime_error("TEST FAILED"); } } PYBIND11_MODULE(xtensor_python_test, m) { xt::import_numpy(); m.doc() = "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); // Register additional dtypes PYBIND11_NUMPY_DTYPE(A, a, b, c, x); PYBIND11_NUMPY_DTYPE(B, a, b); m.def("dtype_to_python", dtype_to_python); m.def("dtype_from_python", dtype_from_python); m.def("char_array", char_array); m.def("col_major_array", col_major_array); m.def("row_major_tensor", row_major_tensor); } |
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