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

1 vote181 views1 answer
Uri online judge 1930 solution in c++
C++
13 votes141 views3 answers
? in cpp
C++
-1 vote95 views1 answer
How to insert all values from one vector to another
C++
0 vote130 views1 answer
Array di struct
C++
0 vote136 views1 answer
CudaMalloc
C++
1 vote135 views1 answer
Qt qchar to char
C++
1 vote127 views1 answer
Mpi_bcast
C++
4 votes147 views1 answer
Sort vector struct c++
C++
0 vote131 views1 answer
Graph using queue c++
C++
0 vote136 views1 answer
How to input a vector when size is unknown
C++