// 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.

package unicode

// IsDigit reports whether the rune is a decimal digit.
func ( rune) bool {
	if  <= MaxLatin1 {
		return '0' <=  &&  <= '9'
	}
	return isExcludingLatin(Digit, )
}