// Equals should be consistent with operator ==.
public override bool Equals(Object obj)
{
GoodAddableType good = obj as GoodAddableType;
if (obj == null)
{
return(false);
}
return(this == good);
}
public static void Main()
{
BadAddableType a = new BadAddableType(2, 2);
BadAddableType b = new BadAddableType(2, 2);
BadAddableType x = new BadAddableType(9, 9);
GoodAddableType c = new GoodAddableType(3, 3);
GoodAddableType d = new GoodAddableType(3, 3);
GoodAddableType y = new GoodAddableType(9, 9);
Console.WriteLine("Bad type: {0} {1} are equal? {2}", a, b, a.Equals(b)? "Yes":"No");
Console.WriteLine("Good type: {0} {1} are equal? {2}", c, d, c.Equals(d)? "Yes":"No");
Console.WriteLine("Good type: {0} {1} are == ? {2}", c, d, c == d? "Yes":"No");
Console.WriteLine("Bad type: {0} {1} are equal? {2}", a, x, a.Equals(x)? "Yes":"No");
Console.WriteLine("Good type: {0} {1} are == ? {2}", c, y, c == y? "Yes":"No");
}
public static void Main()
{
BadAddableType a = new BadAddableType(2,2);
BadAddableType b = new BadAddableType(2,2);
BadAddableType x = new BadAddableType(9,9);
GoodAddableType c = new GoodAddableType(3,3);
GoodAddableType d = new GoodAddableType(3,3);
GoodAddableType y = new GoodAddableType(9,9);
Console.WriteLine("Bad type: {0} {1} are equal? {2}", a,b, a.Equals(b)? "Yes":"No");
Console.WriteLine("Good type: {0} {1} are equal? {2}", c,d, c.Equals(d)? "Yes":"No");
Console.WriteLine("Good type: {0} {1} are == ? {2}", c,d, c==d? "Yes":"No");
Console.WriteLine("Bad type: {0} {1} are equal? {2}", a,x, a.Equals(x)? "Yes":"No");
Console.WriteLine("Good type: {0} {1} are == ? {2}", c,y, c==y? "Yes":"No");
}