Explain the concept of operator overloading? List the operators that cannot be overloaded. Write programs to add two object of distance class with data members feet and inch by using by using member function and friend function.

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Suresh Chand · Accepted Answer

Operator overloading is a technique by which operators used in a programming language are implemented in user-defined types with customized logic that is based on the types of arguments passed. To overload an operator, we use a special operator function. We define the function inside the class or structure whose objects/variables we want the overloaded operator to work with. class className { ... .. ... public returnType operator symbol (arguments) { ... .. ... } ... .. ... }; Almost all operators can be overloaded except few. Following is the list of operators that cannot be overloaded. . (dot)::?:sizeof Program Part: #include using namespace std; class Distance{ private: int feet; int inch; public: void set_distance() { cout << 'Enter feet: '; cin >> feet; cout << 'Enter inch: '; cin >> inch; } void display(){ cout << 'nFeet => ' << feet << ' Inch => ' << inch << endl; } friend Distance operator + (Distance d1, Distance d2); }; Distance operator + (Distance d1, Distance d2) { Distance d3; d3.feet = d1.feet + d2.feet; d3.inch = d1.inch + d2.inch; return d3; } int main() { Distance d1, d2, d3; d1.set_distance(); d2.set_distance(); d3 = d1 + d2; d3.display(); return 0; } The output of above program is Enter feet: 12 Enter inch: 13 Enter feet: 12 Enter inch: 13 Feet => 24 Inch => 26

Explain the concept of operator overloading? List the operators that cannot be overloaded. Write programs to add two object of distance class with data members feet and inch by using by using member function and friend function.

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Explain the concept of operator overloading? List the operators that cannot be overloaded. Write programs to add two object of distance class with data members feet and inch by using by using member function and friend function.

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