What encoding or data type can be used to get alphanumeric string in elixir

Question

I want to guess alphanumeric strings for Bitcoin mining to match leading zeros. 

For example in scala, we can use base36 binary to text encoding:- BigInt(someAlphaNumString, 36) and increment it by adding BigInt(1, 36) to our string.

What is the better way to do same in elixir?

Answer 1

Integers in Elixir are arbitrary precision integers, so there's no need for any special BigInt data type. You can convert a base-36 string to and from integer using String.to_integer/2 and Integer.to_string/2 like this:

iex(1)> a = String.to_integer("DOGBERT", 36)
29776764809
iex(2)> b = a + 1
29776764810
iex(3)> Integer.to_string(b, 36)
"DOGBERU"