https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46073

Martin Uecker <muecker at gwdg dot de> changed:

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--- Comment #7 from Martin Uecker <muecker at gwdg dot de> ---

To me, the text in the documentation "This may change in future revisions."
merely expresses a possible future change, not necessarily that the current
behavior is considered buggy.

Regarding the declaration, those are processed at compile time even the the
code is not evaluated at run-time.

FWIW, the specification of _Generic in C23 intentionally requires all brances
to be processed and checked including the branches which are not selected.

What the C FE does though is that it suppresses some errors in the arms which
are not evaluated.

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