Multiple Inheritance, C++ and Same Method Signature in Multiple Super Classes

Question

I have no experience in C++, and I come from a Java background. Lately, I was asked in an interview on why Java would not allow multiple inheritence and the answer was pretty ea

Answer 1

struct MecEngineer {

     void buildRobot() { /* .... */ }

};

struct EleEngineer {

     void buildRobot() { /* .... */ }

};

struct RoboticsEngineer : MecEngineer, EleEngineer {

};

Now when you do,

robEngObject -> buildRobot() ;

Such a call cannot be resolved and is ambiguous because both the sub-objects has a member function with same signature and compiler doesn't know which one to call. In such a situation, you need to explicitly mention it using :: operator or by using static_cast.

static_cast (robEngObject) -> buildRobot() ;