Help with None vs Null

Questions & Answers
1

Hi All,

Can someone help me understand why the ‘box’ evaluates to !null in the coalescing operator but evaluates to null in an ‘if ()’ check?

public class Test : MonoBehaviour
{
    public void Update()
    {
        // Will assign 'T' the value of 'target'.
        GameObject T = target ?? new GameObject();

        // ... but....

        // Will evaluate to true.
        if (null == target)
            print("Target is null!");
    }

    [SerializeField] protected GameObject target;
}

The help is greatly appreciated.

Thanks,

2

Unity overloads the “==” operator for Objects.

http://blogs.unity3d.com/2014/05/16/custom-operator-should-we-keep-it/

I can’t really explain why, or what’s going on. But I know the question has been asked numerous times here on Answers and in the forum.

http://answers.unity3d.com/questions/586144/destroyed-monobehaviour-not-comparing-to-null.html