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C++ Operator Overloading and Function Overloading
Like other operators, you can overload the assignment operator (=) to create an object, such as a copy constructor.
The following example demonstrates how to overload the assignment operator.
#include <iostream> using namespace std; class Distance { private: int feet; // 0 to infinity int inches; // 0 to 12 public: // Required constructor Distance() feet = 0; inches = 0; } Distance(int f, int i){ feet = f; inches = i; } void operator=(const Distance &D ) { feet = D.feet; inches = D.inches; } // Display distance method void displayDistance() { cout << "F: " << feet << " I:" << inches << endl; } }; int main() { Distance D1(11, 10), D2(5, 11); cout << "First Distance :"; D1.displayDistance(); cout << "Second Distance :"; D2.displayDistance(); // Using Assignment Operator D1 = D2; cout << "First Distance :"; D1.displayDistance(); return 0; }
When the above code is compiled and executed, it will produce the following results:
First Distance : F: 11 I:10 Second Distance : F: 5 I:11 First Distance : F: 5 I:11