blob: dd6a6cf52e2faab1cda8f186b04da442fcc88269 [file] [log] [blame]
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore_for_gccgo
package bytealg
import "internal/cpu"
const MaxBruteForce = 64
func init() {
if cpu.X86.HasAVX2 {
MaxLen = 63
} else {
MaxLen = 31
}
}
// Cutover reports the number of failures of IndexByte we should tolerate
// before switching over to Index.
// n is the number of bytes processed so far.
// See the bytes.Index implementation for details.
func Cutover(n int) int {
// 1 error per 8 characters, plus a few slop to start.
return (n + 16) / 8
}