efficiently store signed integers in varint
npm install signed-varintstore signed integers efficiently, as per protocol-buffers.
For unsigned integers use
varint.
Integers are mapped to positive integers, so that positive integers
become positive even numbers (n*2)
and negative integers become positive odd numbers. (n*-2 - 1)
This is the same as moving the sign bit from the most significant
possition to the least significant. Otherwise, varint will encode
negative numbers as large integers.
`` js
var varint = require('varint')
var svarint = require('signed-varint')
console.log('unsigned', varint.encode(-1))
console.log('signed', svarint.encode(-1))
//=> unsigned [255,255,255, 15]
// signed [1]
``
MIT