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59 lines
1.4 KiB
59 lines
1.4 KiB
5 years ago
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#include "Python.h"
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#define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION
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#include "numpy/arrayobject.h"
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#include <math.h>
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static PyObject* vecsq(PyObject* self, PyObject* args);
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static PyMethodDef arraytestMethods[] = { { "vecsq", vecsq, METH_VARARGS },
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{ NULL, NULL } };
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static PyObject* vecsq(PyObject* self, PyObject* args)
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{
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PyArrayObject *vecin, *vecout;
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npy_intp dims[2];
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double *cin, *cout;
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int i, j, n, m;
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if (!PyArg_ParseTuple(args, "O!", &PyArray_Type, &vecin))
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return NULL;
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n = dims[0] = PyArray_NDIM(vecin);
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vecout = (PyArrayObject*)PyArray_SimpleNew(1, dims, NPY_DOUBLE);
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cin = (double*)PyArray_DATA(vecin);
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cout = (double*)PyArray_DATA(vecout);
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for (i = 0; i < n; i++) {
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cout[i] = cin[i] * cin[i];
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}
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return PyArray_Return(vecout);
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}
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#if defined(PYTHON2)
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PyMODINIT_FUNC init_C_arraytest(void)
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{
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(void)Py_InitModule("arraytest2", arraytestMethods);
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import_array();
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}
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#endif
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#if defined(PYTHON3)
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static struct PyModuleDef arraytestmodule = {
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PyModuleDef_HEAD_INIT, "arraytest3", /* name of module */
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NULL, /* module documentation, may be NULL */
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-1, /* size of per-interpreter state of the module,
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or -1 if the module keeps state in global variables. */
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arraytestMethods
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};
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PyMODINIT_FUNC PyInit_C_arraytest(void)
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{
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PyObject* po = PyModule_Create(&arraytestmodule);
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import_array();
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return po;
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}
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#endif
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