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// Copyright 2017 The Cockroach Authors.
// Use of this software is governed by the Business Source License
// included in the file licenses/BSL.txt.
// As of the Change Date specified in that file, in accordance with
// the Business Source License, use of this software will be governed
// by the Apache License, Version 2.0, included in the file
// licenses/APL.txt.
package util
import (
// CRC32 computes the Castagnoli CRC32 of the given data.
func CRC32(data []byte) uint32 {
hash := crc32.New(crc32.MakeTable(crc32.Castagnoli))
if _, err := hash.Write(data); err != nil {
panic(errors.Wrap(err, `"It never returns an error." --`))
return hash.Sum32()
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