How to store a reference to an integer in C#? [duplicate]

Answer 1

You didn't specify you were against unsafe code, so this should work:

unsafe class Bar {
    private int* m_ref;

    public Bar(int* val) {
        m_ref = val;
    }

    public void AddOne() {
        *m_ref += 1;
    }
}

unsafe class Program {
    static void Main() {
        int foo = 7;
        Bar b = new Bar(&foo);
        b.AddOne();
        Console.WriteLine(foo);    // prints 8
        Console.ReadLine();
    }
}

I've never used pointers in C#, but it appears to work. I'm just not sure what the possible side effects are.