// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
namespace System.Numerics
{
    internal static class Crc32ReflectedTable
    {
        internal static uint[] Generate(uint reflectedPolynomial)
        {
            uint[] table = new uint[256];
 
            for (int i = 0; i < 256; i++)
            {
                uint val = (uint)i;
 
                for (int j = 0; j < 8; j++)
                {
                    if ((val & 0b0000_0001) == 0)
                    {
                        val >>= 1;
                    }
                    else
                    {
                        val = (val >> 1) ^ reflectedPolynomial;
                    }
                }
 
                table[i] = val;
            }
 
            return table;
        }
    }
}