52 lines
610 B
C#
52 lines
610 B
C#
class X {
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static object get_non_null ()
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{
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return new X ();
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}
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static object get_null ()
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{
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return null;
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}
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public static int Main ()
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{
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int a = 5;
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object o;
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decimal d = 0M;
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//
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// compile time
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//
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if (!(get_non_null () is object))
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return 1;
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if (get_null () is object)
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return 2;
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if (!(a is object))
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return 3;
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//
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// explicit reference
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//
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if (null is object)
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return 4;
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o = a;
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if (!(o is int))
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return 5;
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if (d is int)
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return 6;
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object oi = 1;
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if (!(oi is int))
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return 7;
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System.Console.WriteLine ("Is tests pass");
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return 0;
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}
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}
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