I'm trying to encode a large number to a list of bytes(uint8 in Go). The number of bytes is unknown, so I'd like to use vector. But Go doesn't provide vector of byte, what can I do? And is it possible to get a slice of such a byte vector?

I intends to implement data compression. Instead of store small and large number with the same number of bytes, I'm implements a variable bytes that uses less bytes with small number and more bytes with large number.

My code can not compile, invalid type assertion:

  1 package main
  2 
  3 import (
  4     //"fmt"
  5     "container/vector"
  6 )
  7 
  8 func vbEncodeNumber(n uint) []byte{
  9     bytes := new(vector.Vector)
 10     for {
 11         bytes.Push(n % 128)
 12         if n < 128 {
 13             break
 14         }
 15         n /= 128
 16     }
 17     bytes.Set(bytes.Len()-1, bytes.Last().(byte)+byte(128))
 18     return bytes.Data().([]byte) // <-
 19 }
 20 
 21 func main() { vbEncodeNumber(10000) }

I wish to writes a lot of such code into binary file, so I wish the func can return byte array.

I haven't find a code example on vector.