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C++ Operator Overloading

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26 C++ Operator Overloading Questions And Answers

21⟩ Output of this program? #include <iostream> using namespace std; class myclass { public int i; myclass *operator->() {return this;} }; int main() { myclass ob; ob->i = 10; cout << ob.i << " " << ob->i; return 0; } a) 10 10 b) 11 11 c) error d) runtime error

a) 10 10

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22⟩ The output of this program? #include <iostream> using namespace std; ostream & operator<<(ostream & i, int n) { return i; } int main() { cout << 5 << endl; cin.get(); return 0; } a) 5 b) 6 c) error d) runtime error

c) error

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23⟩ Operator overloading is a) making c++ operator works with objects b) giving new meaning to existing operator c) making new operator d) both a & b

d) both a & b

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24⟩ How to declare operator function? a) operator operator sign b) operator c) operator sign d) None of the mentioned

a) operator operator sign

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25⟩ Pick the other name of operator function. a) function overloading b) operator overloading c) member overloading d) None of the mentioned

b) operator overloading

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26⟩ Which of the following statements is NOT valid about operator overloading? a) Only existing operators can be overloaded. b) Overloaded operator must have at least one operand of its class type. c) The overloaded operators follow the syntax rules of the original operator. d) None of the mentioned

d) None of the mentioned

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