1 files changed, 48 insertions, 0 deletions
diff --git a/libgo/go/internal/bytealg/indexbyte_generic.go b/libgo/go/internal/bytealg/indexbyte_generic.go
new file mode 100644
index 00000000000..890cd42d2b6
--- /dev/null
+++ b/libgo/go/internal/bytealg/indexbyte_generic.go
@@ -0,0 +1,48 @@
+// 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.
+
+// +ignore_for_gccgo
+// +build !386,!amd64,!amd64p32,!s390x,!arm,!arm64,!ppc64,!ppc64le,!mips,!mipsle,!mips64,!mips64le,!wasm
+
+package bytealg
+
+import _ "unsafe" // for go:linkname
+
+func IndexByte(b []byte, c byte) int {
+	for i, x := range b {
+		if x == c {
+			return i
+		}
+	}
+	return -1
+}
+
+func IndexByteString(s string, c byte) int {
+	for i := 0; i < len(s); i++ {
+		if s[i] == c {
+			return i
+		}
+	}
+	return -1
+}
+
+//go:linkname bytes_IndexByte bytes.IndexByte
+func bytes_IndexByte(b []byte, c byte) int {
+	for i, x := range b {
+		if x == c {
+			return i
+		}
+	}
+	return -1
+}
+
+//go:linkname strings_IndexByte strings.IndexByte
+func strings_IndexByte(s string, c byte) int {
+	for i := 0; i < len(s); i++ {
+		if s[i] == c {
+			return i
+		}
+	}
+	return -1
+}