+++ /dev/null
-// 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.
-
-// +build !go1.2
-
-package language
-
-import "sort"
-
-func sortStable(s sort.Interface) {
- ss := stableSort{
- s: s,
- pos: make([]int, s.Len()),
- }
- for i := range ss.pos {
- ss.pos[i] = i
- }
- sort.Sort(&ss)
-}
-
-type stableSort struct {
- s sort.Interface
- pos []int
-}
-
-func (s *stableSort) Len() int {
- return len(s.pos)
-}
-
-func (s *stableSort) Less(i, j int) bool {
- return s.s.Less(i, j) || !s.s.Less(j, i) && s.pos[i] < s.pos[j]
-}
-
-func (s *stableSort) Swap(i, j int) {
- s.s.Swap(i, j)
- s.pos[i], s.pos[j] = s.pos[j], s.pos[i]
-}