1 files changed, 14 insertions, 0 deletions
diff --git a/src/strconv/bytealg.go b/src/strconv/bytealg.go
new file mode 100644
index 0000000000..7f66f2a8bb
--- /dev/null
+++ b/src/strconv/bytealg.go
@@ -0,0 +1,14 @@
+// Copyright 2009 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 !compiler_bootstrap
+
+package strconv
+
+import "internal/bytealg"
+
+// contains reports whether the string contains the byte c.
+func contains(s string, c byte) bool {
+	return bytealg.IndexByteString(s, c) != -1
+}