static void Main(string[] args)
{
MyNumberClass classVal = new MyNumberClass();
classVal.value = 3;
MyNumberStruct structVal = new MyNumberStruct();
structVal.value = 3;
AddTo(classVal, 1);
AddTo(structVal, 1);
Console.WriteLine("AddTo class = " + classVal);
Console.WriteLine("AddTo struct = " + structVal);
Console.ReadKey();
}
static void AddTo(MyNumberClass x, int y)
{
x.value += y;
}