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