Classes - Get function - return more than one value

Question

Let's suppose we have:

Class Foo{
    int x,y;

    int setFoo();
}

int Foo::setFoo(){
    return x,y;
}

All I want to achieve is form my get function to return more than one value. How can I do this?

Answer 1

C++ doesn't support multiple return values.

You can return via parameters or create an auxiliary structure:

class Foo{
    int x,y;

    void setFoo(int& retX, int& retY);
};

void Foo::setFoo(int& retX, int& retY){
    retX = x;
    retY = y;
}

or

struct MyPair
{
   int x;
   int y;
};

class Foo{
    int x,y;

    MyPair setFoo();
};

MyPair Foo::setFoo(){
    MyPair ret;
    ret.x = x;
    ret.y = y;
    return ret;
}

Also, shouldn't your method be called getFoo? Just sayin...

EDIT:

What you probably want:

class Foo{
    int x,y;
    int getX() { return x; }
    int getY() { return y; }
};

Answer 2

You can have reference parameters.

void Foo::setFoo(int &x, int &y){
    x = 1; y =27 ;
}