Function npyiter_enable_external_loop

numpy/core/src/multiarray/nditer_pywrap.c:1349–1373

}

static PyObject *
npyiter_enable_external_loop(
    NewNpyArrayIterObject *self, PyObject *NPY_UNUSED(args))
{
    if (self->iter == NULL) {
        PyErr_SetString(PyExc_ValueError,
                "Iterator is invalid");
        return NULL;
    }

    NpyIter_EnableExternalLoop(self->iter);
    /* EnableExternalLoop invalidates cached values */
    npyiter_cache_values(self);
    /* EnableExternalLoop also resets the iterator */
    if (NpyIter_GetIterSize(self->iter) == 0) {
        self->started = 1;
        self->finished = 1;
    }
    else {
        self->started = 0;
        self->finished = 0;
    }

    Py_RETURN_NONE;
}

static PyObject *
npyiter_debug_print(NewNpyArrayIterObject *self, PyObject *NPY_UNUSED(args))