[Bug c++/65188] New: diagnostic: missing: reference to non-static member function must be called

[jan.kratochvil at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65188

            Bug ID: 65188
           Summary: diagnostic: missing: reference to non-static member
                    function must be called
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jan.kratochvil at redhat dot com
            Target: x86_64-linux-gnu

class C { public: void f() {} } c;
int main() { return c.f.a; }

-Wall

g++ (GCC) 5.0.0 20150224 (experimental)
-------------------------------------------------------------------------------
10.C: In function ‘int main()’:
10.C:2:21: error: ‘c.C::f’ does not have class type
 int main() { return c.f.a; }
                     ^
-------------------------------------------------------------------------------

clang-3.5.0-6.fc21.x86_64
-------------------------------------------------------------------------------
10.C:2:23: error: reference to non-static member function must be called; did
you mean to call it with no arguments?
int main() { return c.f.a; }
                    ~~^
                       ()
10.C:2:24: error: member reference base type 'void' is not a structure or union
int main() { return c.f.a; }
                    ~~~^~
2 errors generated.
-------------------------------------------------------------------------------

I had no idea what GCC errors on until I asked clang.  It may be obvious here
but with complicated classes the better error message is really helpful.