// Copyright 2019 The LevelDB-Go and Pebble Authors. All rights reserved. Use // of this source code is governed by a BSD-style license that can be found in // the LICENSE file. package randvar import ( "time" "golang.org/x/exp/rand" ) // NewRand creates a new random number generator seeded with the current time. func NewRand() *rand.Rand { return rand.New(rand.NewSource(uint64(time.Now().UnixNano()))) } func ensureRand(rng *rand.Rand) *rand.Rand { if rng != nil { return rng } return NewRand() }