#include<iostream> using namespace std;
class P {
public :
void print() { cout << " Inside P" ; }
}; class Q : public P {
public :
void print() { cout << " Inside Q" ; }
}; class R: public Q { };
int main( void )
{ R r;
r.print();
return 0;
} |
(A) Inside P
(B) Inside Q
(C) Compiler Error: Ambiguous call to print()
Answer: (B)
Explanation: The print function is not present in class R. So it is looked up in the inheritance hierarchy. print() is present in both classes P and Q, which of them should be called? The idea is, if there is multilevel inheritance, then function is linearly searched up in the inheritance hierarchy until a matching function is found.
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