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C#
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using System;
using System.Collections.Generic;
interface IMyCollection<T> : ICollection<T> {
}
class MyCollection<T> : IMyCollection<T> {
public void AddRange(IMyCollection<T> items) {
}
public void AddRange(IEnumerable<T> items) {
}
public int Count { get { return 0; } }
public bool IsReadOnly { get { return false; } }
public void Add(T item) { }
public void Clear() { }
public bool Contains(T item) { return false; }
public void CopyTo(T[] a, int i) { }
public bool Remove(T item) { return false; }
public IEnumerator<T> GetEnumerator() { return null; }
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { return null; }
}
class P {
static protected MyCollection<String> foo = new MyCollection<String>();
static protected MyCollection<String> bar = new MyCollection<String>();
static public MyCollection<String> IgnoreTokens {
get {
if (foo.Count == 0)
foo.AddRange(bar); // false error on Mono 2.0 and 2.4: The call is ambiguous between...
return foo;
}
}
public static void Main()
{
}
}