[Bug c++/106837] False compilation error "inconsistent begin/end types in range-based 'for' statement"

[ofekshilon at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106837

--- Comment #2 from Ofek Shilon <ofekshilon at gmail dot com> ---
(In reply to Andrew Pinski from comment #1)
> > In this case the begin/end iter types *are* comparable
> Not exactly as the operator!= requires a lvalue. And end() is not an lvalue.

Then enable comparison also via the other iterator type:

  struct myDat {
    myDat() {}
    struct EndIter;
    struct Iter {
      Iter &operator++();
      int operator*();
      bool operator!=(EndIter& other);
    };
    Iter begin() ;
    struct EndIter {
        bool operator!=(Iter other);
    };
    EndIter end() ;
  };

  int main() { 
    for (int pos : myDat()) 
        ; 
  }

This still fails with the same message