[Bug c++/69205] Place a variadic template in front of function parameter when it is known

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69205

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid
      Known to fail|                            |6.0

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Here is a short testcase without any use of includes:
struct string{};
template<typename _Signature> class function;
template<typename _Res, typename... _ArgTypes> class
function<_Res(_ArgTypes...)>{};

template<typename ActionType, typename... Cols>
void print_action(function<ActionType*(Cols..., ActionType)> action_factory)
{}

int main(int argc, char *argv[])
{
  function<string*(int, string)> t;
  print_action<string, int>(t);
  print_action(t);

  return 0;
}

--- CUT ---
I don't know variadic templates that well to know enough so I can't comment one
way or another.