// Copyright 2015, Hu Keping. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package rbtree

// Int is type of int
type Int int

// Less returns whether x(Int) is smaller than specified item
func (x Int) Less(than Item) bool {
	return x < than.(Int)
}

// String is type of string
type String string

// Less returns whether x(String) is smaller than specified item
func (x String) Less(than Item) bool {
	return x < than.(String)
}