50 lines
1008 B
C#
50 lines
1008 B
C#
using System;
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class Foo {
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static int t_count = 0, f_count = 0;
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public static int Main ()
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{
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Console.WriteLine (t && f);
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if (t_count != 1)
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return 1;
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if (f_count != 1)
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return 2;
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Console.WriteLine ();
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Console.WriteLine (t && t);
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if (t_count != 3)
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return 3;
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if (f_count != 1)
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return 4;
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Console.WriteLine ();
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return 0;
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}
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static MyBool t { get { Console.WriteLine ("t"); t_count++; return new MyBool (true); }}
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static MyBool f { get { Console.WriteLine ("f"); f_count++; return new MyBool (false); }}
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}
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public struct MyBool {
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bool v;
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public MyBool (bool v) { this.v = v; }
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public static MyBool operator & (MyBool x, MyBool y) {
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return new MyBool (x.v & y.v);
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}
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public static MyBool operator | (MyBool x, MyBool y) {
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return new MyBool (x.v | y.v);
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}
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public static bool operator true (MyBool x) {
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return x.v;
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}
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public static bool operator false (MyBool x) {
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return ! x.v;
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}
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public override string ToString () { return v.ToString (); }
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}
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