TLV_DWORD_COUNT
return (cursor->current + TLV_DWORD_COUNT(length));
delta = TLV_DWORD_COUNT(size);
delta = TLV_DWORD_COUNT(tlv_length(cursor));
old_ndwords = TLV_DWORD_COUNT(tlv_length(cursor));
new_ndwords = TLV_DWORD_COUNT(size);