89 lines
1.0 KiB
C#
89 lines
1.0 KiB
C#
using System;
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enum E : sbyte
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{
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V = 1
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}
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struct S
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{
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public static bool operator == (S s, S i)
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{
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throw new ApplicationException ();
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}
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public static bool operator != (S s, S i)
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{
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throw new ApplicationException ();
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}
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public static implicit operator int? (S s)
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{
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throw new ApplicationException ();
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}
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public static implicit operator E? (S s)
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{
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return null;
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}
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}
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class C
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{
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public static int Main ()
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{
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E? a = E.V;
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E? a_n = null;
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E? b = E.V;
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E? b_n = null;
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if (a != b)
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return 1;
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if (a == a_n)
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return 2;
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if (a_n != b_n)
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return 3;
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E e = (E) 4;
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S s;
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if (e == s)
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return 10;
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if (s == e)
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return 11;
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if (e > s)
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return 12;
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if (s > e)
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return 13;
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if ((s & e) != null)
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return 14;
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if ((s & e) != null)
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return 15;
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var res1 = (E?) 1 == null;
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if (res1)
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return 16;
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var res2 = null == (E?) 1;
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if (res2)
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return 17;
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var r1 = a_n & E.V;
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if (r1 != null)
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return 18;
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var r2 = E.V & a_n;
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if (r2 != null)
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return 19;
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Console.WriteLine ("ok");
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return 0;
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}
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} |