mirror of https://go.googlesource.com/go
27 lines
617 B
Go
27 lines
617 B
Go
// Copyright 2018 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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package bytealg
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import "internal/cpu"
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const MaxBruteForce = 64
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func init() {
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if cpu.X86.HasAVX2 {
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MaxLen = 63
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} else {
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MaxLen = 31
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}
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}
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// Cutover reports the number of failures of IndexByte we should tolerate
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// before switching over to Index.
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// n is the number of bytes processed so far.
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// See the bytes.Index implementation for details.
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func Cutover(n int) int {
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// 1 error per 8 characters, plus a few slop to start.
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return (n + 16) / 8
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}
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