On Tue, Nov 23, 2021 at 2:11 PM Daniel Gustafsson <dan...@yesql.se> wrote:
> > On 22 Nov 2021, at 16:40, Tom Lane <t...@sss.pgh.pa.us> wrote: > > > I can't find anything that is providing a non-empty definition of > > PG_USED_FOR_ASSERTS_ONLY (a/k/a pg_attribute_unused) for anything > > except GCC. > > It's supported in clang as well per the documentation [0] in at least some > configurations or distributions: > > "The [[maybe_unused]] (or __attribute__((unused))) attribute can be > used to silence such diagnostics when the entity cannot be removed. > For instance, a local variable may exist solely for use in an > assert() > statement, which makes the local variable unused when NDEBUG is > defined." > > [[maybe_unused]] is also recognized from Visual Studio 2017 onwards [1]. [1] https://docs.microsoft.com/en-us/cpp/cpp/attributes?view=msvc-170 Regards, Juan José Santamaría Flecha
