1 // CS1956: The interface method `I<string>.M(out string)' implementation is ambiguous between following methods: `A<string,string>.M(out string)' and `A<string,string>.M(ref string)' in type `Test'
3 // Compiler options: -warnaserror
12 public virtual void M (out T t
)
17 public virtual void M (ref U u
)
22 class Test
: A
<string, string>, I
<string>
26 I
<string> x
= new Test ();