https://github.com/mtchavez/skiplist

Skiplist data structure in golang
https://github.com/mtchavez/skiplist

data-structures go golang skiplist

Last synced: about 1 month ago
JSON representation

Skiplist data structure in golang

• Host: GitHub
• URL: https://github.com/mtchavez/skiplist
• Owner: mtchavez
• License: mit
• Created: 2014-06-15T06:38:41.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2018-07-26T13:57:55.000Z (over 6 years ago)
• Last Synced: 2024-10-13T14:10:50.307Z (3 months ago)
• Topics: data-structures, go, golang, skiplist
• Language: Go
• Homepage:
• Size: 42 KB
• Stars: 3
• Watchers: 2
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# Skiplist

[![Latest Version](http://img.shields.io/github/release/mtchavez/skiplist.svg?style=flat-square)](https://github.com/mtchavez/skiplist/releases)

[![Build Status](https://travis-ci.org/mtchavez/skiplist.svg?branch=master)](https://travis-ci.org/mtchavez/skiplist)

[![Go Documentation](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)](http://godoc.org/github.com/mtchavez/skiplist)

[![Go Report Card](https://goreportcard.com/badge/github.com/mtchavez/skiplist)](https://goreportcard.com/report/github.com/mtchavez/skiplist)

[![Maintainability](https://api.codeclimate.com/v1/badges/e7513b7306bbabb3d2b4/maintainability)](https://codeclimate.com/github/mtchavez/skiplist/maintainability)

[![Test Coverage](https://api.codeclimate.com/v1/badges/e7513b7306bbabb3d2b4/test_coverage)](https://codeclimate.com/github/mtchavez/skiplist/test_coverage)

Skiplist implementation in Go. Read more on [Skip Lists](http://en.wikipedia.org/wiki/Skip_list)

Skiplist with various additions and potential variations on the standard list.

## Install

`go get -u github.com/mtchavez/skiplist`

## Usage

Initialize a skiplist

```go

package main

func main() {

    list := skiplist.NewList()

}

```

Insert Nodes

```go

package main

func main() {

    list := skiplist.NewList()

    list.Insert(1, []byte("Node 1"))

    list.Insert(2, []byte("Node 2"))

}

```

Iterate through nodes

```go

package main

import (

    "fmt"

)

func main() {

    list := skiplist.NewList()

    list.Insert(1, []byte("Node 1"))

    list.Insert(2, []byte("Node 2"))

    list.Insert(3, []byte("Node 3"))

    for i := list.Iterator(); i.Next(); {

        // Print Key

        fmt.Println(i.Key())

        // Print Value

        fmt.Println(i.Val())

    }

}

```

## Documentation

Docs are on [GoDoc](http://godoc.org/github.com/mtchavez/skiplist)

## Tests

Run tests with coverage

`go test --cover`

## Benchmarks

Benchmarked with on a 2.3 GHz Intel Core i7.

```

# Benchmarked on 2017-09-16

goos: darwin

goarch: amd64

pkg: github.com/mtchavez/skiplist

BenchmarkInsert_1000-8              2000            805488 ns/op

BenchmarkInsert_10000-8              200           8370616 ns/op

BenchmarkInsert_100000-8              20          98251825 ns/op

BenchmarkInsert_1000000-8              1        1122310227 ns/op

BenchmarkParallelInsert-8        1000000              1349 ns/op

BenchmarkDelete_1000-8              5000            221056 ns/op

BenchmarkDelete_10000-8              500           3577634 ns/op

BenchmarkDelete_100000-8              30          61547826 ns/op

BenchmarkDelete_1000000-8              2         611290978 ns/op

BenchmarkParallelDelete-8        2000000               802 ns/op

```

## TODO

* Implement a compare interface

* Concurrent skiplist implementation