SystemEx.Hash.BernsteinHash Class Reference

Inheritance diagram for SystemEx.Hash.BernsteinHash:

Collaboration diagram for SystemEx.Hash.BernsteinHash:

Public Member Functions
	BernsteinHash (Endian endian)
	Craate a new instance.
Hash32	Compute (FixedVector< byte > input, uint seed)
	Computes a simple 32‑bit hash from the given byte sequence.
Hash64	ComputeLong (FixedVector< byte > input, ulong seed)
	Computes a simple 64‑bit hash from the given byte sequence.

Constructor & Destructor Documentation

BernsteinHash()

SystemEx.Hash.BernsteinHash.BernsteinHash

(

Endian

endian

)

Craate a new instance.

Parameters

endian

The suing endian for creating a hash

                                               {
            m_endian = endian;
        }

Member Function Documentation

Compute()

Hash32 SystemEx.Hash.BernsteinHash.Compute	(	FixedVector< byte >	input,
		uint	seed )

Computes a simple 32‑bit hash from the given byte sequence.

The hash starts with the provided seed and mixes each byte using a small multiplier (31), similar to traditional Bernstein/DJB hash variants.

Endian does not affect this algorithm directly; it is included for interface compatibility with other SystemEx hashers.

Parameters

input	The input data to hash.
seed	The seed value for the hash computation.

Returns

The computed Bernstein hash as a Hash32 object.

Implements SystemEx.Hash.IHash.

                                                                     {
            if ( input.Count == 0 )
                return new Hash32(0);
 
            uint hash = seed == 0 ? Default : seed;
 
            // Simple deterministic byte loop
            for ( int i = 0 ; i < input.Count ; i++ ) {
                hash = (hash * 33) + input[i];
            }
            hash ^= (hash >> 16);
            return new Hash32(hash);
        }

ComputeLong()

Hash64 SystemEx.Hash.BernsteinHash.ComputeLong	(	FixedVector< byte >	input,
		ulong	seed )

Computes a simple 64‑bit hash from the given byte sequence.

The hash starts with the provided seed and mixes each byte using a larger multiplier (1315423911), a common constant used in JSHash‑style Bernstein derivatives to improve diffusion in 64‑bit space.

Endian does not affect this algorithm directly; it is included for interface compatibility with other SystemEx hashers.

Parameters

input	The input data to hash.
seed	The seed value for the hash computation.

Returns

The computed Bernstein hash as a Hash64 object.

Implements SystemEx.Hash.IHash.

                                                                          {
            if ( input.Count == 0 )
                return new Hash64(0);
 
            ulong hash = seed == 0 ? Default64 : seed;
 
            // Larger multiplier for 64‑bit
            for ( int i = 0 ; i < input.Count ; i++ ) {
                hash = (hash * 1315423911L) + input[i];
            }
            hash ^= (hash >> 32);
            return new Hash64(hash);
        }

---

The documentation for this class was generated from the following file:

• BernsteinHash.cs