[Bug c++/94571] Error: Expected comma or semicolon, comma found

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94571

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:e4658c7dbbe88f742c96e5f58ee4a6d549d642ca

commit r10-7745-ge4658c7dbbe88f742c96e5f58ee4a6d549d642ca
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Thu Apr 16 07:19:57 2020 +0200

    c++: Fix pasto in structured binding diagnostics [PR94571]

    This snippet has been copied from the non-structured binding declaration
    parsing later in the function, and while for non-structured bindings
    it can be followed by comma or semicolon, structured bindings may be
    only followed by semicolon.

    Or, do we want to have a different message for the case when there is
    a comma (and keep this corrected one only if there is something else)
    that would explain better what is the bug (or add a fix-it hint)?
    Marek said in the PR that clang++ reports
    error: decomposition declaration must be the only declaration in its group

    There is another thing Marek noted (though, something for different spot),
    that diagnostic for auto x(1), [e,f] = test2; could also use a clearer
    wording like the above (or a fix-it hint), but the question is if we should
    assume [ after , as a structured binding or if we should do some tentative
    parsing first to figure out if it looks like a structured binding.

    2020-04-16  Jakub Jelinek  <jakub@redhat.com>

            PR c++/94571
            * parser.c (cp_parser_simple_declaration): Fix up a pasto in
            diagnostics.

            * g++.dg/cpp1z/decomp51.C: New test.