static void IndefItems_UpdateHeaderLen(IndefItems* items)
{
    items->len[items->idx].headerLen +=
                                    SetLength(items->len[items->idx].len, NULL);
}
static void IndefItems_UpdateHeaderLen(IndefItems* items)
{
    items->len[items->idx].headerLen +=
                                    SetLength(items->len[items->idx].len, NULL);
}