C++ examples for Class:Operator Overload
Overloaded '+=' assignment operator
#include <iostream> using namespace std; class Measure/*from ww w . ja v a 2 s. c o m*/ { private: int feet; float inches; public: Measure() : feet(0), inches(0.0) { } Measure(int ft, float in) : feet(ft), inches(in) { } void getdist() //get length from user { cout << "\nEnter feet: "; cin >> feet; cout << "Enter inches: "; cin >> inches; } void showdist() const { cout << feet << "\'-" << inches << '\"'; } void operator += ( Measure ); }; //add distance to this one void Measure::operator += (Measure d2) { feet += d2.feet; //add the feet inches += d2.inches; //add the inches if(inches >= 12.0) //if total exceeds 12.0, { //then decrease inches inches -= 12.0; //by 12.0 and feet++; //increase feet } //by 1 } int main() { Measure dist1; //define dist1 dist1.getdist(); //get dist1 from user cout << "\ndist1 = "; dist1.showdist(); Measure dist2(11, 6.25); //define, initialize dist2 cout << "\ndist2 = "; dist2.showdist(); dist1 += dist2; //dist1 = dist1 + dist2 cout << "\nAfter addition,"; cout << "\ndist1 = "; dist1.showdist(); cout << endl; return 0; }