[Bug c++/101465] New: Poorly worded error from a call to a pointer-to-member function not wrapped in parentheses

[Bug c++/101465] New: Poorly worded error from a call to a pointer-to-member function not wrapped in parentheses

[josephcsible at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101465

            Bug ID: 101465
           Summary: Poorly worded error from a call to a pointer-to-member
                    function not wrapped in parentheses
           Product: gcc
           Version: 11.1.0
            Status: UNCONFIRMED
          Keywords: diagnostic
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: josephcsible at gmail dot com
  Target Milestone: ---

Consider this C++ code:

struct foo *x;

void (foo::*myfuncptr)();

void f() {
    x->*myfuncptr();
}

This fails to compile, as it should. The problem is that the error I get says I
"must use '.*' or '->*' to call pointer-to-member function", even though I'm
already using '->*'. The actual change I need to make is to add parentheses,
like this: "(x->*myfuncptr)();" We should make the error say this instead.

[Bug c++/101465] Poorly worded error from a call to a pointer-to-member function not wrapped in parentheses

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101465

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2021-07-15
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
And we should issue a fix-it suggestion too.

I thought this was a dup of an existing bug, but I can't find one, so
confirmed.

[Bug c++/101465] Poorly worded error from a call to a pointer-to-member function not wrapped in parentheses

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101465

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2021-07-15 00:00:00         |2021-7-23

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
clang outputs something which is worse than even GCC does:

<source>:6:18: error: called object type 'void (foo::*)()' is not a function or
function pointer
    x->*myfuncptr();
        ~~~~~~~~~^
1 error generated.