[Bug c++/65299] Inheriting from two classes with increment operators

[ieee at bk dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65299

--- Comment #2 from Im ieee <ieee at bk dot ru> ---
I have a mistake, ICC also rejects the code: 

"C::operator++" (ambiguous by inheritance)
operand types are: C ++
c++;
^