https://github.com/dchest/varuint

Go package varuint implements SQLite4-like variable unsigned integer encoding.
https://github.com/dchest/varuint

Last synced: about 1 month ago
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Go package varuint implements SQLite4-like variable unsigned integer encoding.

• Host: GitHub
• URL: https://github.com/dchest/varuint
• Owner: dchest
• Created: 2012-10-05T09:34:08.000Z (about 12 years ago)
• Default Branch: master
• Last Pushed: 2016-01-17T09:32:53.000Z (almost 9 years ago)
• Last Synced: 2024-04-15T01:16:20.270Z (7 months ago)
• Language: Go
• Homepage:
• Size: 6.84 KB
• Stars: 7
• Watchers: 3
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README

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README

        
Go package varuint implements SQLite4-like variable unsigned integer encoding

as described in http://www.sqlite.org/src4/doc/trunk/www/varint.wiki.

Unlike varint from encoding/binary package, this encoding uses fewer bytes

for smaller values, and the number of encoded bytes can be determined by

looking at the first byte. Varuint also preserves numeric and lexicographical

ordering.

INSTALLATION

	

	$ go get github.com/dchest/varuint 

EXAMPLE

	import "github.com/dchest/varuint"

	...

	buf := make([]byte, varuint.MaxUint64Len)

	n := varuint.PutUint64(buf, 12345)

	buf = buf[:n]

	fmt.Printf("% x\n", buf)

	// Output: f9 27 49

	v, n := varuint.Uint64(buf)

	if n < 1 {

		panic("buffer is too small to contain the expected number")

	}

	fmt.Println(v)

	// Output: 12345

LICENSE / PUBLIC DOMAIN DEDICATION

Written in 2012 by Dmitry Chestnykh.

To the extent possible under law, the author have dedicated all copyright

and related and neighboring rights to this software to the public domain

worldwide. This software is distributed without any warranty.

http://creativecommons.org/publicdomain/zero/1.0/