mirror of
https://github.com/golang/go
synced 2024-11-25 10:47:56 -07:00
70 lines
1.5 KiB
Go
70 lines
1.5 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"fmt"
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"sort"
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)
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func ints() {
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data := []int{74, 59, 238, -784, 9845, 959, 905, 0, 0, 42, 7586, -5467984, 7586}
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a := sort.IntArray(data)
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sort.Sort(a)
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if !sort.IsSorted(a) {
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panic()
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}
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}
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func strings() {
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data := []string{"monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday"}
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a := sort.StringArray(data)
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sort.Sort(a)
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if !sort.IsSorted(a) {
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panic()
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}
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}
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type day struct {
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num int
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shortName string
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longName string
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}
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type dayArray struct {
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data []*day
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}
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func (p *dayArray) Len() int { return len(p.data) }
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func (p *dayArray) Less(i, j int) bool { return p.data[i].num < p.data[j].num }
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func (p *dayArray) Swap(i, j int) { p.data[i], p.data[j] = p.data[j], p.data[i] }
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func days() {
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Sunday := day{ 0, "SUN", "Sunday" }
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Monday := day{ 1, "MON", "Monday" }
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Tuesday := day{ 2, "TUE", "Tuesday" }
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Wednesday := day{ 3, "WED", "Wednesday" }
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Thursday := day{ 4, "THU", "Thursday" }
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Friday := day{ 5, "FRI", "Friday" }
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Saturday := day{ 6, "SAT", "Saturday" }
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data := []*day{&Tuesday, &Thursday, &Wednesday, &Sunday, &Monday, &Friday, &Saturday}
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a := dayArray{data}
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sort.Sort(&a)
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if !sort.IsSorted(&a) {
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panic()
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}
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for _, d := range data {
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fmt.Printf("%s ", d.longName)
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}
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fmt.Printf("\n")
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}
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func main() {
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ints()
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strings()
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days()
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}
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