namespace System.Numerics.Hashing { internal static class HashHelpers { public static readonly int RandomSeed = new Random().Next(-2147483648, 2147483647); public static int Combine(int h1, int h2) { uint num = (uint)((h1 << 5) | (int)((uint)h1 >> 27)); return ((int)num + h1) ^ h2; } } }