Function array_is_busday

numpy/core/src/multiarray/datetime_busday.c:1214–1327

* This is the 'is_busday' function exposed for calling * from Python. */

 * from Python.
 */
NPY_NO_EXPORT PyObject *
array_is_busday(PyObject *NPY_UNUSED(self),
                      PyObject *args, PyObject *kwds)
{
    static char *kwlist[] = {"dates",
                             "weekmask", "holidays", "busdaycal", "out", NULL};

    PyObject *dates_in = NULL, *out_in = NULL;

    PyArrayObject *dates = NULL,*out = NULL, *ret;
    npy_bool weekmask[7] = {2, 1, 1, 1, 1, 0, 0};
    NpyBusDayCalendar *busdaycal = NULL;
    int i, busdays_in_weekmask;
    npy_holidayslist holidays = {NULL, NULL};
    int allocated_holidays = 1;

    if (!PyArg_ParseTupleAndKeywords(args, kwds,
                                    "O|O&O&O!O:is_busday", kwlist,
                                    &dates_in,
                                    &PyArray_WeekMaskConverter, &weekmask[0],
                                    &PyArray_HolidaysConverter, &holidays,
                                    &NpyBusDayCalendar_Type, &busdaycal,
                                    &out_in)) {
        goto fail;
    }

    /* Make sure only one of the weekmask/holidays and busdaycal is supplied */
    if (busdaycal != NULL) {
        if (weekmask[0] != 2 || holidays.begin != NULL) {
            PyErr_SetString(PyExc_ValueError,
                    "Cannot supply both the weekmask/holidays and the "
                    "busdaycal parameters to is_busday()");
            goto fail;
        }

        /* Indicate that the holidays weren't allocated by us */
        allocated_holidays = 0;

        /* Copy the private normalized weekmask/holidays data */
        holidays = busdaycal->holidays;
        busdays_in_weekmask = busdaycal->busdays_in_weekmask;
        memcpy(weekmask, busdaycal->weekmask, 7);
    }
    else {
        /*
         * Fix up the weekmask from the uninitialized
         * signal value to a proper default.
         */
        if (weekmask[0] == 2) {
            weekmask[0] = 1;
        }

        /* Count the number of business days in a week */
        busdays_in_weekmask = 0;
        for (i = 0; i < 7; ++i) {
            busdays_in_weekmask += weekmask[i];
        }