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

0 vote305 views1 answer
Map::begin
C++
0 vote317 views1 answer
C++ cyclic barrier
C++
0 vote310 views1 answer
How to grab each character from a string
C++
2 votes298 views2 answers
Selection sort c++ algorithm
C++
4 votes315 views1 answer
Fork was not declared in this scope
C++
0 vote298 views1 answer
Find the biggest element in the array
C++
-1 vote287 views1 answer
Assigning a seed on a random number generator in C++
C++
0 vote305 views1 answer
Taking user input for a vector in c++
C++
0 vote319 views1 answer
No indentation latex
C++
0 vote287 views3 answers
Bool function in c++
C++