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[Bug c/51579] GCC should be able report a warning for usage of parameters marked with __attribute__((unused))
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 16 Dec 2011 15:54:32 +0000
- Subject: [Bug c/51579] GCC should be able report a warning for usage of parameters marked with __attribute__((unused))
- Auto-submitted: auto-generated
- References: <bug-51579-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51579
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-12-16 15:54:32 UTC ---
The very common case is that __attribute__((unused)) parameter is only used
conditionally, e.g. guarded by some preprocessor macro or used in some
preprocessor macro that only expands to something including that macro argument
in some cases and in other cases doesn't use the parameter at all.