[Bug c++/98441] [10/11 Regression] member function pointer incorrectly parsed as having trailing return type

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98441

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |10.3
             Status|UNCONFIRMED                 |NEW
           Keywords|                            |rejects-valid
     Ever confirmed|0                           |1
                 CC|                            |mpolacek at gcc dot gnu.org
            Summary|member function pointer     |[10/11 Regression] member
                   |incorrectly parsed as       |function pointer
                   |having trailing return type |incorrectly parsed as
                   |                            |having trailing return type
   Last reconfirmed|                            |2020-12-27

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Started to be rejected with r11-2085:

    c++: Improve checking of decls with trailing return type [PR95820]

    This is an ICE-on-invalid but I've been seeing it when reducing
    various testcases, so it's more important for me than usually.

    splice_late_return_type now checks that if we've seen a late return
    type, the function return type was auto.  That's a fair assumption
    but grokdeclarator/cdk_function wasn't giving errors for function
    pointers and similar.  So we want to perform various checks not only
    when funcdecl_p || inner_declarator == NULL.  But only give the
    !late_return_type errors when funcdecl_p, to accept e.g.

    auto (*fp)() = f;