Converts a layer mask value to an integer value.

	// Casts a ray using the layer mask,
	// which can be modified in the inspector.
	var mask : LayerMask = -1;
	function Update () {
		if (Physics.Raycast (transform.position, transform.forward, 100, mask.value)) {
			Debug.Log("Hit something");
		}
	}

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    public LayerMask mask = -1;
    void Update() {
        if (Physics.Raycast(transform.position, transform.forward, 100, mask.value))
            Debug.Log("Hit something");
        
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	public mask as LayerMask = (-1)

	def Update() as void:
		if Physics.Raycast(transform.position, transform.forward, 100, mask.value):
			Debug.Log('Hit something')