Works for me! Attached is a patch for an added cc-mode test case.

By the way, I came across this issue because a similar line appears in
a winning entry to the 1988 International Obfuscated C Code Contest
(https://www.ioccc.org/1988/dale.c). That line is included in the test
case.

Trivia question: which Emacs maintainer is a past IOCCC winner?