29 lines
843 B
Go
29 lines
843 B
Go
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// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !amd64,!amd64p32 appengine gccgo
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package crc32
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// The file contains the generic version of updateCastagnoli which does
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// slicing-by-8, or uses the fallback for very small sizes.
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func updateCastagnoli(crc uint32, p []byte) uint32 {
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// only use slicing-by-8 when input is >= 16 Bytes
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if len(p) >= 16 {
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return updateSlicingBy8(crc, castagnoliTable8, p)
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}
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return update(crc, castagnoliTable, p)
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}
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func updateIEEE(crc uint32, p []byte) uint32 {
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// only use slicing-by-8 when input is >= 16 Bytes
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if len(p) >= 16 {
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iEEETable8Once.Do(func() {
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iEEETable8 = makeTable8(IEEE)
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})
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return updateSlicingBy8(crc, iEEETable8, p)
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}
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return update(crc, IEEETable, p)
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}
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