72 lines
2.3 KiB
C#
72 lines
2.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace VocaluxeLib
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{
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public static class Extensions
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{
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/// <summary>
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/// Resizes the given list to the given size. Removes elements or adds default values
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="list"></param>
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/// <param name="size"></param>
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/// <param name="defaultValue"></param>
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public static void Resize<T>(this List<T> list, int size, T defaultValue = default(T))
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{
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int curSize = list.Count;
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if (size < curSize)
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list.RemoveRange(size, curSize - size);
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else if (size > curSize)
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list.AddRange(Enumerable.Repeat(defaultValue, size - curSize));
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}
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/// <summary>
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/// Makes the list at least the given size adding the given default values.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="list"></param>
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/// <param name="size"></param>
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/// <param name="defaultValue"></param>
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public static void EnsureSize<T>(this List<T> list, int size, T defaultValue)
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{
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int curSize = list.Count;
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if (size > curSize)
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list.AddRange(Enumerable.Repeat(defaultValue, size - curSize));
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}
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/// <summary>
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/// Makes the list at least the given size adding a new instance of T
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="list"></param>
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/// <param name="size"></param>
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public static void EnsureSize<T>(this List<T> list, int size) where T : new()
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{
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if (size > list.Count)
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list.Add(new T());
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}
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/// <summary>
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/// Gets all set bits starting from lowest (Bit 0)
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/// </summary>
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/// <param name="value"></param>
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/// <returns></returns>
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public static List<int> GetSetBits(this int value)
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{
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var result = new List<int>();
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int curBit = 0;
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//Evaluate as bitset
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while (value > 0)
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{
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if ((value & 1) != 0)
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result.Add(curBit);
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value >>= 1;
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curBit++;
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}
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return result;
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}
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}
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} |