[Bug c++/121539] [13/14/15/16 Regression] C style variadic ellipsis is incorrectly rejected after a default argument in a member function when not preceded by a comma

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121539

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
      Known to fail|                            |4.9.0
      Known to work|                            |4.8.5
            Summary|C style variadic ellipsis   |[13/14/15/16 Regression] C
                   |is incorrectly rejected     |style variadic ellipsis is
                   |after a default argument in |incorrectly rejected after
                   |a member function when not  |a default argument in a
                   |preceded by a comma         |member function when not
                   |                            |preceded by a comma
     Ever confirmed|0                           |1
   Target Milestone|---                         |13.5
   Last reconfirmed|                            |2025-08-13

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
```
int a;
struct S{
    void foo(int=a...){}
};

```
started to get rejected in GCC 4.9.0.