v/vlib/hash/wyhash/rand.v

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// Copyright (c) 2019-2020 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
module wyhash
pub fn rand_u64(seed &u64) u64 {
mut seed0 := seed
unsafe{
mut seed1 := *seed0
seed1+=wyp0
*seed0 = seed1
return wymum(seed1^wyp1, seed1)
}
}