Doxygen doesn't seem to have @doc and @topic though, so it might be
Autoduck like someone else suggested, or possibly some other tool.
The Makefile (or project, or whatever) should contain rules for
generating the docs, and these will reveal what tool was used.
Personal opinion: Doxygen is nice, but I don't like the very detailed
and formalized markup -- I prefer to document my functions in complete
Fortunately @parm and so on are completely optional in Doxygen. Don't
remember how it is with Autoduck -- I used it ~10 years ago, but I
wasn't very impressed.
// Jorgen Grahn <grahn@ Oo o. . .
\X/ snipabacken.se> O o .