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using System;
class X
{
public readonly int x;
public X (int x)
{
this.x = x;
}
public override string ToString ()
{
return String.Format ("X ({0})", x);
}
public static X operator & (X a, X b)
{
return new X (a.x * b.x);
}
public static X operator | (X a, X b)
{
return new X (a.x + b.x);
}
// Returns true if the value is odd.
public static bool operator true (X x)
{
return (x.x % 2) != 0;
}
// Returns true if the value is even.
public static bool operator false (X x)
{
return (x.x % 2) == 0;
}
public static int Test ()
{
X x = new X (3);
X y = new X (4);
X t1 = x && y;
X t2 = y && x;
X t3 = x || y;
X t4 = y || x;
// Console.WriteLine ("TEST: {0} {1} {2} {3} {4} {5}", x, y, t1, t2, t3, t4);
if (t1.x != 12)
return 1;
if (t2.x != 4)
return 2;
if (t3.x != 3)
return 3;
if (t4.x != 7)
return 4;
return 0;
}
public static int Main ()
{
int result = Test ();
Console.WriteLine ("RESULT: {0}", result);
return result;
}
}
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