Function ufunc_generic_vectorcall

numpy/core/src/umath/ufunc_object.c:5056–5066

* Implement vectorcallfunc which should be defined with Python 3.8+. * In principle this could be backported, but the speed gain seems moderate * since ufunc calls often do not have keyword arguments and always have * a large overhead. The only user would potentially be cython probably. */

 * a large overhead. The only user would potentially be cython probably.
 */
static PyObject *
ufunc_generic_vectorcall(PyObject *ufunc,
        PyObject *const *args, size_t len_args, PyObject *kwnames)
{
    /*
     * Unlike METH_FASTCALL, `len_args` may have a flag to signal that
     * args[-1] may be (temporarily) used. So normalize it here.
     */
    return ufunc_generic_fastcall((PyUFuncObject *)ufunc,
            args, PyVectorcall_NARGS(len_args), kwnames, NPY_FALSE);
}


NPY_NO_EXPORT PyObject *