[Bug c/66425] (void) cast doesn't suppress __attribute__((warn_unused_result))

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66425

Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |manu at gcc dot gnu.org

--- Comment #1 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
I am not the one who decides, but the conclusion of the previous discussion was
that users of _wur (which are the API maintainers adding it) do want to get a
warning even with (void) and GCC's testsuite explicitly tests for it.

It is fairly easy to use -Wno-unused-result or "#pragma GCC diagnostics" if you
want more fine-tuning. The location info in GCC has improved to the point that
it is possible to ignore individual warnings using #pragmas. That seems far
clearer to a reader and makes obvious which warning is ignored on purpose.

Of course, we are happy to get as much help as we can, but I would not want you
to waste your time on something that is likely not going to get approved.