Function array_concatenate

numpy/core/src/multiarray/multiarraymodule.c:2530–2578

}

static PyObject *
array_concatenate(PyObject *NPY_UNUSED(dummy),
        PyObject *const *args, Py_ssize_t len_args, PyObject *kwnames)
{
    PyObject *a0;
    PyObject *out = NULL;
    PyArray_Descr *dtype = NULL;
    NPY_CASTING casting = NPY_SAME_KIND_CASTING;
    PyObject *casting_obj = NULL;
    PyObject *res;
    int axis = 0;

    NPY_PREPARE_ARGPARSER;
    if (npy_parse_arguments("concatenate", args, len_args, kwnames,
            "seq", NULL, &a0,
            "|axis", &PyArray_AxisConverter, &axis,
            "|out", NULL, &out,
            "$dtype", &PyArray_DescrConverter2, &dtype,
            "$casting", NULL, &casting_obj,
            NULL, NULL, NULL) < 0) {
        return NULL;
    }
    int casting_not_passed = 0;
    if (casting_obj == NULL) {
        /*
         * Casting was not passed in, needed for deprecation only.
         * This should be simplified once the deprecation is finished.
         */
        casting_not_passed = 1;
    }
    else if (!PyArray_CastingConverter(casting_obj, &casting)) {
        Py_XDECREF(dtype);
        return NULL;
    }
    if (out != NULL) {
        if (out == Py_None) {
            out = NULL;
        }
        else if (!PyArray_Check(out)) {
            PyErr_SetString(PyExc_TypeError, "'out' must be an array");
            Py_XDECREF(dtype);
            return NULL;
        }
    }
    res = PyArray_ConcatenateInto(a0, axis, (PyArrayObject *)out, dtype,
            casting, casting_not_passed);
    Py_XDECREF(dtype);
    return res;
}

static PyObject *
array_innerproduct(PyObject *NPY_UNUSED(dummy), PyObject *const *args, Py_ssize_t len_args)