// The zero Hash value is valid and ready to use; setting an

// initial seed is not necessary.

var h maphash.Hash

// Add a string to the hash, and print the current hash value.

h.WriteString("hello, ")

fmt.Printf("%#x\n", h.Sum64())

// Append additional data (in the form of a byte array).

h.Write([]byte{'w', 'o', 'r', 'l', 'd'})

fmt.Printf("%#x\n", h.Sum64())

// Reset discards all data previously added to the Hash, without

// changing its seed.

h.Reset()

// Use SetSeed to create a new Hash h2 which will behave

// identically to h.

var h2 maphash.Hash

h2.SetSeed(h.Seed())

h.WriteString("same")

h2.WriteString("same")

fmt.Printf("%#x == %#x\n", h.Sum64(), h2.Sum64())