C++ classes and operators code example
Example 1: c++ operator overloading
class Money
{
public:
Money & operator += (const Money &rhs);
}
Money& Money :: operator += (const Money &rhs)
{
return *this;
}
Example 2: c++ overload operator
#include <iostream>
using namespace std;
class Box {
public:
double getVolume(void) {
return length * breadth * height;
}
void setLength( double len ) {
length = len;
}
void setBreadth( double bre ) {
breadth = bre;
}
void setHeight( double hei ) {
height = hei;
}
Box operator+(const Box& b) {
Box box;
box.length = this->length + b.length;
box.breadth = this->breadth + b.breadth;
box.height = this->height + b.height;
return box;
}
private:
double length;
double breadth;
double height;
};
int main() {
Box Box1;
Box Box2;
Box Box3;
double volume = 0.0;
Box1.setLength(6.0);
Box1.setBreadth(7.0);
Box1.setHeight(5.0);
Box2.setLength(12.0);
Box2.setBreadth(13.0);
Box2.setHeight(10.0);
volume = Box1.getVolume();
cout << "Volume of Box1 : " << volume <<endl;
volume = Box2.getVolume();
cout << "Volume of Box2 : " << volume <<endl;
Box3 = Box1 + Box2;
volume = Box3.getVolume();
cout << "Volume of Box3 : " << volume <<endl;
return 0;
}
Example 3: operator overloading in c++
Box operator+(const Box&);