Function npy_to_unicode

numpy/core/src/multiarray/textreading/conversions.c:311–334

NPY_NO_EXPORT int
npy_to_unicode(PyArray_Descr *descr,
        const Py_UCS4 *str, const Py_UCS4 *end, char *dataptr,
        parser_config *NPY_UNUSED(unused))
{
    int length = descr->elsize / 4;

    if (length <= end - str) {
        memcpy(dataptr, str, length * 4);
    }
    else {
        size_t given_len = end - str;
        memcpy(dataptr, str, given_len * 4);
        memset(dataptr + given_len * 4, '\0', (length - given_len) * 4);
    }

    if (!PyArray_ISNBO(descr->byteorder)) {
        for (int i = 0; i < length; i++) {
            npy_bswap4_unaligned(dataptr);
            dataptr += 4;
        }
    }
    return 0;
}