libgo/go/internal/bytealg/index_native.go

   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
   5 //-go:build amd64 || arm64 || s390x || ppc64le || ppc64
   6
   7 package bytealg
   8
   9 //go:noescape
  10
  11 // Index returns the index of the first instance of b in a, or -1 if b is not present in a.
  12 // Requires 2 <= len(b) <= MaxLen.
  13 func Index(a, b []byte) int
  14
  15 //go:noescape
  16
  17 // IndexString returns the index of the first instance of b in a, or -1 if b is not present in a.
  18 // Requires 2 <= len(b) <= MaxLen.
  19 func IndexString(a, b string) int
  20
  21 func Cutover(n int) int {
  22         // 1 error per 8 characters, plus a few slop to start.
  23         return (n + 16) / 8
  24 }