Golang程序  |  19行  |  391 B

// compile

// Copyright 2013 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.

// Returning an index into a conversion from string to slice caused a
// compilation error when using gccgo.

package p

func F1(s string) byte {
	return []byte(s)[0]
}

func F2(s string) rune {
	return []rune(s)[0]
}