overloading operator c++ > less than code example
Example 1: c++ overloaded == operator
#include <iostream>
#include <string>
class Car
{
private:
std::string m_make;
std::string m_model;
public:
Car(const std::string& make, const std::string& model)
: m_make{ make }, m_model{ model }
{
}
friend bool operator== (const Car &c1, const Car &c2);
friend bool operator!= (const Car &c1, const Car &c2);
};
bool operator== (const Car &c1, const Car &c2)
{
return (c1.m_make== c2.m_make &&
c1.m_model== c2.m_model);
}
bool operator!= (const Car &c1, const Car &c2)
{
return !(c1== c2);
}
int main()
{
Car corolla{ "Toyota", "Corolla" };
Car camry{ "Toyota", "Camry" };
if (corolla == camry)
std::cout << "a Corolla and Camry are the same.\n";
if (corolla != camry)
std::cout << "a Corolla and Camry are not the same.\n";
return 0;
}
Example 2: c++ operator overloading not equal
lass Fred {
public:
};
if
Fred add(const Fred& x, const Fred& y);
Fred mul(const Fred& x, const Fred& y);
Fred f(const Fred& a, const Fred& b, const Fred& c)
{
return add(add(mul(a,b), mul(b,c)), mul(c,a));
}
else
Fred operator+ (const Fred& x, const Fred& y);
Fred operator* (const Fred& x, const Fred& y);
Fred f(const Fred& a, const Fred& b, const Fred& c)
{
return a*b + b*c + c*a;
}
#endif