The Curiously Non-Enumerating Enumerator
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using System;
using System.Collections.Generic;
class MainClass {
static void Main() {
List<int> list = new List<int>{1,2};
var roe = new ReadOnlyEnumerator(list);
Console.WriteLine("First element of list - {0}", list[0]);
roe.PrintTheFirstElement();
Console.WriteLine("First returned element of enumerator - {0}", roe.GetTheFirstElement());
}
}
class ReadOnlyEnumerator
{
private readonly List<int>.Enumerator _enumerator;
public ReadOnlyEnumerator(List<int> list)
{
_enumerator = list.GetEnumerator();
}
public void PrintTheFirstElement()
{
_enumerator.MoveNext();
Console.WriteLine("First element of enumerator - {0}",_enumerator.Current);
}
public int GetTheFirstElement()
{
_enumerator.MoveNext();
return _enumerator.Current;
}
}
Csharp
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