Function PyArray_OrderConverter

numpy/core/src/multiarray/conversion_utils.c:693–703

NUMPY_API * Convert an object to FORTRAN / C / ANY / KEEP */

 * Convert an object to FORTRAN / C / ANY / KEEP
 */
NPY_NO_EXPORT int
PyArray_OrderConverter(PyObject *object, NPY_ORDER *val)
{
    /* Leave the desired default from the caller for Py_None */
    if (object == Py_None) {
        return NPY_SUCCEED;
    }
    return string_converter_helper(
        object, (void *)val, order_parser, "order",
        "must be one of 'C', 'F', 'A', or 'K'");
}

static int clipmode_parser(char const *str, Py_ssize_t length, void *data)
{