xxhash.go
func NewS32(seed uint32) (xx *XXHash32) {
	xx = &XXHash32{
		seed: seed,
	}
	xx.Reset()
	return
}
func NewS32(seed uint32) (xx *XXHash32) {
	xx = &XXHash32{
		seed: seed,
	}
	xx.Reset()
	return
}
// NewS32 creates a new hash.Hash32 computing the 32bit xxHash checksum starting with the specific seed.