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#define NPY_NO_DEPRECATED_API NPY_API_VERSION
#define _MULTIARRAYMODULE
#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include "common.h"
#include "vdot.h"
#include "npy_cblas.h"
/*
* All data is assumed aligned.
*/
NPY_NO_EXPORT void
CFLOAT_vdot(char *ip1, npy_intp is1, char *ip2, npy_intp is2,
char *op, npy_intp n, void *NPY_UNUSED(ignore))
{
#if defined(HAVE_CBLAS)
CBLAS_INT is1b = blas_stride(is1, sizeof(npy_cfloat));
CBLAS_INT is2b = blas_stride(is2, sizeof(npy_cfloat));
if (is1b && is2b) {
double sum[2] = {0., 0.}; /* double for stability */
while (n > 0) {
CBLAS_INT chunk = n < NPY_CBLAS_CHUNK ? n : NPY_CBLAS_CHUNK;
float tmp[2];
CBLAS_FUNC(cblas_cdotc_sub)((CBLAS_INT)n, ip1, is1b, ip2, is2b, tmp);
sum[0] += (double)tmp[0];
sum[1] += (double)tmp[1];
/* use char strides here */
ip1 += chunk * is1;
ip2 += chunk * is2;
n -= chunk;
}
((float *)op)[0] = (float)sum[0];
((float *)op)[1] = (float)sum[1];
}
else
#endif
{
float sumr = (float)0.0;
float sumi = (float)0.0;
npy_intp i;
for (i = 0; i < n; i++, ip1 += is1, ip2 += is2) {
const float ip1r = ((float *)ip1)[0];
const float ip1i = ((float *)ip1)[1];
const float ip2r = ((float *)ip2)[0];
const float ip2i = ((float *)ip2)[1];
sumr += ip1r * ip2r + ip1i * ip2i;
sumi += ip1r * ip2i - ip1i * ip2r;
}
((float *)op)[0] = sumr;
((float *)op)[1] = sumi;
}
}
/*
* All data is assumed aligned.
*/
NPY_NO_EXPORT void
CDOUBLE_vdot(char *ip1, npy_intp is1, char *ip2, npy_intp is2,
char *op, npy_intp n, void *NPY_UNUSED(ignore))
{
#if defined(HAVE_CBLAS)
CBLAS_INT is1b = blas_stride(is1, sizeof(npy_cdouble));
CBLAS_INT is2b = blas_stride(is2, sizeof(npy_cdouble));
if (is1b && is2b) {
double sum[2] = {0., 0.}; /* double for stability */
while (n > 0) {
CBLAS_INT chunk = n < NPY_CBLAS_CHUNK ? n : NPY_CBLAS_CHUNK;
double tmp[2];
CBLAS_FUNC(cblas_zdotc_sub)((CBLAS_INT)n, ip1, is1b, ip2, is2b, tmp);
sum[0] += (double)tmp[0];
sum[1] += (double)tmp[1];
/* use char strides here */
ip1 += chunk * is1;
ip2 += chunk * is2;
n -= chunk;
}
((double *)op)[0] = (double)sum[0];
((double *)op)[1] = (double)sum[1];
}
else
#endif
{
double sumr = (double)0.0;
double sumi = (double)0.0;
npy_intp i;
for (i = 0; i < n; i++, ip1 += is1, ip2 += is2) {
const double ip1r = ((double *)ip1)[0];
const double ip1i = ((double *)ip1)[1];
const double ip2r = ((double *)ip2)[0];
const double ip2i = ((double *)ip2)[1];
sumr += ip1r * ip2r + ip1i * ip2i;
sumi += ip1r * ip2i - ip1i * ip2r;
}
((double *)op)[0] = sumr;
((double *)op)[1] = sumi;
}
}
/*
* All data is assumed aligned.
*/
NPY_NO_EXPORT void
CLONGDOUBLE_vdot(char *ip1, npy_intp is1, char *ip2, npy_intp is2,
char *op, npy_intp n, void *NPY_UNUSED(ignore))
{
npy_longdouble tmpr = 0.0L;
npy_longdouble tmpi = 0.0L;
npy_intp i;
for (i = 0; i < n; i++, ip1 += is1, ip2 += is2) {
const npy_longdouble ip1r = ((npy_longdouble *)ip1)[0];
const npy_longdouble ip1i = ((npy_longdouble *)ip1)[1];
const npy_longdouble ip2r = ((npy_longdouble *)ip2)[0];
const npy_longdouble ip2i = ((npy_longdouble *)ip2)[1];
tmpr += ip1r * ip2r + ip1i * ip2i;
tmpi += ip1r * ip2i - ip1i * ip2r;
}
((npy_longdouble *)op)[0] = tmpr;
((npy_longdouble *)op)[1] = tmpi;
}
/*
* All data is assumed aligned.
*/
NPY_NO_EXPORT void
OBJECT_vdot(char *ip1, npy_intp is1, char *ip2, npy_intp is2, char *op, npy_intp n,
void *NPY_UNUSED(ignore))
{
npy_intp i;
PyObject *tmp0, *tmp1, *tmp2, *tmp = NULL;
PyObject **tmp3;
for (i = 0; i < n; i++, ip1 += is1, ip2 += is2) {
if ((*((PyObject **)ip1) == NULL) || (*((PyObject **)ip2) == NULL)) {
tmp1 = Py_False;
Py_INCREF(Py_False);
}
else {
tmp0 = PyObject_CallMethod(*((PyObject **)ip1), "conjugate", NULL);
if (tmp0 == NULL) {
Py_XDECREF(tmp);
return;
}
tmp1 = PyNumber_Multiply(tmp0, *((PyObject **)ip2));
Py_DECREF(tmp0);
if (tmp1 == NULL) {
Py_XDECREF(tmp);
return;
}
}
if (i == 0) {
tmp = tmp1;
}
else {
tmp2 = PyNumber_Add(tmp, tmp1);
Py_XDECREF(tmp);
Py_XDECREF(tmp1);
if (tmp2 == NULL) {
return;
}
tmp = tmp2;
}
}
tmp3 = (PyObject**) op;
tmp2 = *tmp3;
*((PyObject **)op) = tmp;
Py_XDECREF(tmp2);
}
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