103 lines
1.3 KiB
C#
103 lines
1.3 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Specialized;
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public class List : IEnumerable {
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int pos = 0;
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int [] items;
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public List (int i)
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{
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items = new int [i];
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}
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public void Add (int value)
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{
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items [pos ++] = value;
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}
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public MyEnumerator GetEnumerator ()
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{
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return new MyEnumerator(this);
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}
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IEnumerator IEnumerable.GetEnumerator ()
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{
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return GetEnumerator ();
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}
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public struct MyEnumerator : IEnumerator {
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List l;
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int p;
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public MyEnumerator (List l)
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{
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this.l = l;
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p = -1;
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}
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public object Current {
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get {
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return l.items [p];
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}
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}
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public bool MoveNext()
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{
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return ++p < l.pos;
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}
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public void Reset()
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{
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p = 0;
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}
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}
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}
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public class UberList : List {
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public UberList (int i) : base (i)
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{
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}
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public static int Main(string[] args)
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{
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return One () && Two () && Three () ? 0 : 1;
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}
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static bool One ()
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{
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List l = new List (1);
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l.Add (1);
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foreach (int i in l)
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if (i == 1)
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return true;
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return false;
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}
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static bool Two ()
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{
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List l = new UberList (1);
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l.Add (1);
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foreach (int i in l)
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if (i == 1)
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return true;
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return false;
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}
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static bool Three ()
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{
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UberList l = new UberList (1);
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l.Add (1);
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foreach (int i in l)
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if (i == 1)
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return true;
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return false;
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}
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}
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