The cpuset(9) manual page has CPU_ISSET() in the SYNOPSIS but the macro is missing in the DESCRIPTION section.
I'll add a description to the man-page.
A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=eaf3c3af9c88dc63ea09833397f2bbeded16f553 commit eaf3c3af9c88dc63ea09833397f2bbeded16f553 Author: Stefan Eßer <se@FreeBSD.org> AuthorDate: 2022-02-14 14:59:37 +0000 Commit: Stefan Eßer <se@FreeBSD.org> CommitDate: 2022-02-14 14:59:37 +0000 cpuset.9: add description of CPU_ISSET() PR: 261947 Reported by: thmu7 at freenet.de (Thomas Mueller) MFC after: 3 days share/man/man9/cpuset.9 | 9 +++++++++ 1 file changed, 9 insertions(+)
Fixed in commit eaf3c3af9c88 - thanks for reporting the issue ...