On Thu, 18 Aug 2022 17:26:43 +0100 Valentin Schneider <vschneid@xxxxxxxxxx> wrote: > How about: > > find the next set bit in (*addr1 & ~*addr2) I understand the above better. But to convert that into English, we could say: Find the next bit in *addr1 excluding all the bits in *addr2. or Find the next bit in *addr1 that is not set in *addr2. -- Steve