Unions.cpp

#include <iostream>
using namespace std;

class Foo {
public:
  union { 
		float arr[3];
		struct {
			float x,y,z;
		};
	};
};

int main() {

	Foo foo;

	foo.x = 1;
	foo.y = 2;
	foo.z = 3;

	cout << foo.arr[0] << foo.arr[1] << foo.arr[2] << endl;
	
	foo.arr[0] = 4;
	foo.arr[1] = 5;
	foo.arr[2] = 6;

	cout << foo.x << foo.y << foo.z << endl;

	cout << ( (foo.x == foo.arr[0] && foo.y == foo.arr[1] && foo.z == foo.arr[2]) ? "med en union kan man definere at to like store sett med variables skal referere til samme sett values" : "" ) << endl;

	system("pause");
}