CJSON_PUBLIC(cJSON_bool) cJSON_PrintPreallocated(cJSON *item, char *buf, const int len, const cJSON_bool fmt)
{
    printbuffer p = { 0, 0, 0, 0, 0, 0, { 0, 0, 0 } };

    if ((len < 0) || (buf == NULL))
    {
        return false;
    }

    p.buffer = (unsigned char*)buf;
    p.length = (size_t)len;
    p.offset = 0;
    p.noalloc = true;
    p.format = fmt;
    p.hooks = global_hooks;

    return print_value(item, &p);
}

The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.