Function array_empty_like

numpy/core/src/multiarray/multiarraymodule.c:2111–2149

}

static PyObject *
array_empty_like(PyObject *NPY_UNUSED(ignored),
        PyObject *const *args, Py_ssize_t len_args, PyObject *kwnames)
{
    PyArrayObject *prototype = NULL;
    PyArray_Descr *dtype = NULL;
    NPY_ORDER order = NPY_KEEPORDER;
    PyArrayObject *ret = NULL;
    int subok = 1;
    /* -1 is a special value meaning "not specified" */
    PyArray_Dims shape = {NULL, -1};

    NPY_PREPARE_ARGPARSER;

    if (npy_parse_arguments("empty_like", args, len_args, kwnames,
            "prototype", &PyArray_Converter, &prototype,
            "|dtype", &PyArray_DescrConverter2, &dtype,
            "|order", &PyArray_OrderConverter, &order,
            "|subok", &PyArray_PythonPyIntFromInt, &subok,
            "|shape", &PyArray_OptionalIntpConverter, &shape,
            NULL, NULL, NULL) < 0) {
        goto fail;
    }
    /* steals the reference to dtype if it's not NULL */
    ret = (PyArrayObject *)PyArray_NewLikeArrayWithShape(prototype, order, dtype,
                                                         shape.len, shape.ptr, subok);
    npy_free_cache_dim_obj(shape);
    if (!ret) {
        goto fail;
    }
    Py_DECREF(prototype);

    return (PyObject *)ret;

fail:
    Py_XDECREF(prototype);
    Py_XDECREF(dtype);
    return NULL;
}

/*
 * This function is needed for supporting Pickles of