System.Collections.Hashtable.InitHash C# (CSharp) Method

        private uint InitHash(Object key, int hashsize, out uint seed, out uint incr)
        {
            // Hashcode must be positive.  Also, we must not use the sign bit, since
            // that is used for the collision bit.
            uint hashcode = (uint)GetHash(key) & 0x7FFFFFFF;
            seed = (uint)hashcode;
            // Restriction: incr MUST be between 1 and hashsize - 1, inclusive for
            // the modular arithmetic to work correctly.  This guarantees you'll
            // visit every bucket in the table exactly once within hashsize 
            // iterations.  Violate this and it'll cause obscure bugs forever.
            // If you change this calculation for h2(key), update putEntry too!
            incr = (uint)(1 + ((seed * HashPrime) % ((uint)hashsize - 1)));
            return hashcode;
        }