1// Copyright 2018 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package bytealg
6
7// Empirical data shows that using Index can get better
8// performance when len(s) <= 16.
9const MaxBruteForce = 16
10
11func init() {
12	// Optimize cases where the length of the substring is less than 32 bytes
13	MaxLen = 32
14}
15
16// Cutover reports the number of failures of IndexByte we should tolerate
17// before switching over to Index.
18// n is the number of bytes processed so far.
19// See the bytes.Index implementation for details.
20func Cutover(n int) int {
21	// 1 error per 16 characters, plus a few slop to start.
22	return 4 + n>>4
23}
24