blob: 7c7f05bf3a269beb96339de42e26417ba5f64915 [file] [log] [blame]
// Copyright 2011 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 sort_test
import (
"fmt"
"sort"
)
// Reverse embeds a sort.Interface value and implements a reverse sort over
// that value.
type Reverse struct {
// This embedded Interface permits Reverse to use the methods of
// another Interface implementation.
sort.Interface
}
// Less returns the opposite of the embedded implementation's Less method.
func (r Reverse) Less(i, j int) bool {
return r.Interface.Less(j, i)
}
func ExampleInterface_reverse() {
s := []int{5, 2, 6, 3, 1, 4} // unsorted
sort.Sort(Reverse{sort.IntSlice(s)})
fmt.Println(s)
// Output: [6 5 4 3 2 1]
}