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POC#, Index was outside the bounds of the array
 

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  1. POC#, Index was outside the bounds of the array
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    <p>The exception throws at this line:</p> <pre><code>int[] list = new int[count]; //Count = 52 </code></pre> <p>The function is:</p> <pre><code>private static readonly Random _rand = new Random(); public static int[] GetList(int count) { int[] list = new int[count]; // this is line 21 for (int i = 0; i &lt; count; i++) { list[i] = i; } for (int i = 0; i &lt; count * count; i++) { int i1 = _rand.Next(count); int i2 = _rand.Next(count); if (i1 == i2) continue; //swap values list[i1] ^= list[i2]; list[i2] ^= list[i1]; list[i1] ^= list[i2]; } return list; } </code></pre> <p>Edited:</p> <blockquote> <p>It works fine for 2 months. But received this exception today. </p> <p>The program is multi-thread program. But only one thread use this class.</p> <p>It is release mode, without Visual Studio.</p> </blockquote> <p>part of the log is:</p> <blockquote> <p>Index was outside the bounds of the array. </p> <p>at iCulture.GameFramework.Util.RandomList.GetList(Int32 count) in C:\Rm716b\texasgame\TexasHoldem\trunk\iCulture.GameFramework\Util\RandomList.cs:line 21 </p> <p>at iCulture.Texas.Cards..ctor() in C:\Rm716b\texasgame\TexasHoldem\trunk\iCulture.Texas\Cards.cs:line 18 </p> <p>at iCulture.Texas.TexasGame..ctor(Player[] ParticipatePlayers, Int32 SmallBindAmount, Int32 SmallBlindPosition) in C:\Rm716b\texasgame\TexasHoldem\trunk\iCulture.Texas\TexasGame.cs:line 46 </p> </blockquote> <p>Edit:</p> <blockquote> <p>I have tried decompiling the DLL, but the code logic remains the same.</p> </blockquote> <p>It is possible hardware error cause this problem? Because it DOES NOT reappear since then.</p>
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    1. USNeio ZHOU
    1. USNeio ZHOU
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    1. COWhat's your error??
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    2. COPlease don't use XOR to implement a swap in a managed language. We're not limited to 64K of RAM with 32K bank sizes anymore.
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    3. COI have reread the question and withdrew my original erroneous answer (too many "i"s got me confused). You state that the exception occurs on the first line of code, in the method, but it isn't possible to get that exception on that line of code, even if out of memory. I think that there is more or different code that isn't being shown; can you please re-check your code and update your question with information on where the error is actually occurring.
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