[Bug c++/121636] incorrect invocation to inherited templated constructor

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121636

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #4)
> So the change in GCC 7 was done due to:
> https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0136r1.html

That is r7-4255 .


Here is another example which shows the difference ebtween the compilers when
it comes to default arguments:
```
  struct A {
    A(int, int = 0);
    A(int, int, int = 0) = delete;
  };
  struct B : A {
    using A::A;
  };
  B b(1);

```

This is rejected by GCC and EDG while accepted by clang/msvc.  This is a
modified version of https://cplusplus.github.io/CWG/issues/1645.html .