1// Copyright 2020 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 compiler_bootstrap 6 7package strconv 8 9// index returns the index of the first instance of c in s, or -1 if missing. 10func index(s string, c byte) int { 11 for i := 0; i < len(s); i++ { 12 if s[i] == c { 13 return i 14 } 15 } 16 return -1 17} 18