class Foo
{
public:
Foo(Foo const& other){value=other.value;}
    ~Foo(void); // hmm, the tilde looks like a minus sign in the forum editer, it is a tilde, not a syntax error

    // get value
    double getBar() const{ return value;}
    double asBar() const{ return value;}
    double toBar() const{ return value;}
    double foBar() const{ return value;}

private:
    double value; // value in meters - internal implementation detail!
}

#include <Foo.h>

void  test(Foo x){
	x.toBar();
}