[Bug c++/113839] misleading syntax error message

["redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113839

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Frank Heckenbach from comment #0)
> While I appreciate gcc trying to by helpful, it seems it goes wrong rather
> often.

That doesn't match my experience. The errors that mention a specific grammar
production tend to be accurate, with the odd exception like this bug (which
will get fixed).

I find the problem is that telling the user that a particular grammar
production (like "unqualified-id" or "primary-expression") is expected isn't
really helpful to the layperson who doesn't memorize the BNF-like grammar in
the standard. Clang tends to do a better job in that regard, balancing accuracy
with comprehensibility.

If you encounter cases where a diagnostic is misleading, wrong, or just
unhelpfully technical in its wording, please do report them so they can be
improved.