Function array_getarray

numpy/core/src/multiarray/methods.c:1043–1088

static PyObject *
array_getarray(PyArrayObject *self, PyObject *args)
{
    PyArray_Descr *newtype = NULL;
    PyObject *ret;

    if (!PyArg_ParseTuple(args, "|O&:__array__",
                            PyArray_DescrConverter, &newtype)) {
        Py_XDECREF(newtype);
        return NULL;
    }

    /* convert to PyArray_Type */
    if (!PyArray_CheckExact(self)) {
        PyArrayObject *new;

        Py_INCREF(PyArray_DESCR(self));
        new = (PyArrayObject *)PyArray_NewFromDescrAndBase(
                &PyArray_Type,
                PyArray_DESCR(self),
                PyArray_NDIM(self),
                PyArray_DIMS(self),
                PyArray_STRIDES(self),
                PyArray_DATA(self),
                PyArray_FLAGS(self),
                NULL,
                (PyObject *)self
        );
        if (new == NULL) {
            return NULL;
        }
        self = new;
    }
    else {
        Py_INCREF(self);
    }

    if ((newtype == NULL) || PyArray_EquivTypes(PyArray_DESCR(self), newtype)) {
        return (PyObject *)self;
    }
    else {
        ret = PyArray_CastToType(self, newtype, 0);
        Py_DECREF(self);
        return ret;
    }
}

/*
 * Check whether any of the input and output args have a non-default