57 lines
1.4 KiB
C#
57 lines
1.4 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Security.Cryptography;
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using System.Linq;
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namespace TomatenMusic.Util
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{
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static class CollectionUtil
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{
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public static void Shuffle<T>(this IList<T> list)
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{
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RNGCryptoServiceProvider provider = new RNGCryptoServiceProvider();
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int n = list.Count;
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while (n > 1)
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{
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byte[] box = new byte[1];
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do provider.GetBytes(box);
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while (!(box[0] < n * (Byte.MaxValue / n)));
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int k = (box[0] % n);
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n--;
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T value = list[k];
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list[k] = list[n];
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list[n] = value;
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}
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}
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/* public static void Remove<T>(this IList<T> list, T item)
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{
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List<T> newList = new List<T>();
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bool done = false;
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foreach (var i in list)
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{
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if (i.Equals(item) && !done)
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{
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done = true;
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continue;
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}
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newList.Add(i);
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}
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list = newList;
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}*/
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public static class Arrays
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{
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public static IList<T> AsList<T>(params T[] source)
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{
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return source;
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}
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}
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}
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}
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