Operator overloading outside class

//Overloading an operator ouside a class
//Note that unlike when it's done inside a class
//the + operator requires 2 arguments instead of 1
//this is because there is no "this" object to be the 
//default lvalue

class Vector2
{
public:
    float x, y ;
} ;

Vector2 operator+( const Vector2& v1, const Vector2& v2 )
{
    Vector2 ans ;
    ans.x = v1.x + v2.x ;
    ans.y = v1.y + v2.y ;
    return ans ;
}

Source: stackoverflow.com

Similar codes

25 votes118 views10 answers
Translate
C++
0 vote119 views1 answer
What is push() c++
C++
0 vote112 views1 answer
Gamemaker studio
C++
0 vote127 views1 answer
Sfml time set
C++
0 vote122 views1 answer
Namespace "std" n'a pas de membre "filesystem"
C++
25 votes139 views6 answers
String to int c++
C++
0 vote108 views1 answer
Ejemplo
C++
1 vote113 views1 answer
Sort a vector of strings according to their length c++
C++
0 vote121 views1 answer
C++ print to standard error
C++
0 vote103 views1 answer
Closing a ifstream file c++
C++