ck_array_buffer(3) on Linux
The text c1db8d0a821c, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 9 (Stretch), Debian 8 (Jessie) shipped it. The page shows this text now.
return length and pointer to array of reader-visible pointers