c++ over load operator code example
Example 1: c++ operator overloading
// money.h -- define the prototype
class Money
{
public:
Money & operator += (const Money &rhs);
}
// money.cpp -- define the implementation
Money& Money :: operator += (const Money &rhs)
{
// Yadda Yadda
return *this;
}
Example 2: c++ over load operator
// This will substract one vector (math vector) from another
// Good example of how to use operator overloading
vec2 operator - (vec2 const &other) {
return vec2(x - other.x, y - other.y);
}
Example 3: operator ++ overloading c++
class Point
{
public:
Point& operator++() { ... } // prefix
Point operator++(int) { ... } // postfix
friend Point& operator++(Point &p); // friend prefix
friend Point operator++(Point &p, int); // friend postfix
// in Microsoft Docs written "friend Point& operator++(Point &p, int);"
};