28 lines
269 B
C#
28 lines
269 B
C#
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interface I<T>
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{
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}
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class A<T>
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{
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public virtual T M<U> (U u) where U : T
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{
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return u;
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}
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}
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class B<W> : A<I<W>>, I<string>
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{
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public override I<W> M<U> (U u)
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{
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return u;
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}
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}
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class Bug
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{
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public static void Main ()
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{
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var b = new B<string> ();
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b.M (b);
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}
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}
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