Function npyrational_setitem

numpy/core/src/umath/_rational_tests.c:723–754

}

static int
npyrational_setitem(PyObject* item, void* data, void* arr) {
    rational r;
    if (PyRational_Check(item)) {
        r = ((PyRational*)item)->r;
    }
    else {
        long long n = PyLong_AsLongLong(item);
        PyObject* y;
        int eq;
        if (error_converting(n)) {
            return -1;
        }
        y = PyLong_FromLongLong(n);
        if (!y) {
            return -1;
        }
        eq = PyObject_RichCompareBool(item, y, Py_EQ);
        Py_DECREF(y);
        if (eq<0) {
            return -1;
        }
        if (!eq) {
            PyErr_Format(PyExc_TypeError,
                    "expected rational, got %s", item->ob_type->tp_name);
            return -1;
        }
        r = make_rational_int(n);
    }
    memcpy(data, &r, sizeof(rational));
    return 0;
}

static inline void
byteswap(npy_int32* x) {