96 lines
1.1 KiB
C#
96 lines
1.1 KiB
C#
//
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// Short-circuit evaluation tests
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//
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using System;
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class X {
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static int t_count = 0;
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static int f_count = 0;
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static bool f ()
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{
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Console.WriteLine ("f");
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f_count++;
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return false;
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}
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static bool t ()
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{
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Console.WriteLine ("t");
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t_count++;
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return true;
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}
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public static int Main ()
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{
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if (t () && t ()){
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f_count--;
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}
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if (t_count != 2)
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return 1;
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if (f_count != -1)
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return 3;
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f_count = 0;
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if (t () && f ())
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if (t_count != 3 && f_count == 1)
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return 2;
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if (f () && f ())
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return 3;
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if (f_count != 2)
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return 4;
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if (f () && t ())
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return 5;
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if (f_count != 3)
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return 6;
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if (t_count != 3)
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return 7;
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//
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// reset
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//
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Console.WriteLine ("or");
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t_count = f_count = 0;
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if (t () || t ()){
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if (t_count != 1)
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return 8;
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} else
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return 9;
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if (t () || f ()){
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if (f_count != 0)
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return 10;
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if (t_count != 2)
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return 16;
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} else
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return 11;
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if (f () || f ()){
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return 12;
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} else
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if (f_count != 2)
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return 13;
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if (f () || t ()){
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if (f_count != 3)
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return 15;
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if (t_count != 3)
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return 17;
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} else
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return 14;
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return 0;
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}
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}
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