static void TestBasicDelegates()
{
int[] vals = { 1, 2, 3, 4, 5 };
HelperFunctions h = new HelperFunctions();
IntManipulator d = null;
Console.WriteLine("************************************************************************************");
Console.WriteLine(" Testing Basic Delegates:");
Console.WriteLine("************************************************************************************");
Console.WriteLine("With null delegate:");
HelperFunctions.ManipulateAndPrint(vals, d);
Console.WriteLine("With one delegate:");
HelperFunctions.ManipulateAndPrint(vals, Square);
d += Square;
d += Double;
d += Half;
Console.WriteLine("With three delegate:");
HelperFunctions.ManipulateAndPrint(vals, d);
d -= Double;
Console.WriteLine("With two delegate:");
HelperFunctions.ManipulateAndPrint(vals, d);
}
public static void ManipulateAndPrint(int[] vals, IntManipulator d)
{
if (d == null)
{
Console.WriteLine("Delegate is empty");
return;
}
for (int i = 0; i < vals.Length; ++i)
{
Console.WriteLine("Value in index " + i);
Console.Write(d(ref vals[i]) + " , ");
Console.WriteLine("");
}
}
