BSV.Script.ScriptNum (bsv_sdk v1.1.0)

Bitcoin script number encoding/decoding.

Numbers are encoded as little-endian byte arrays with the sign bit in the MSB of the last byte.

Summary

decode_num(bin)

Decode a binary script number to an integer.

encode_num(val)

Encode an integer as a binary script number.

Check if a binary is minimally encoded as a script number.

@spec decode_num(binary()) :: integer()

Decode a binary script number to an integer.

iex> BSV.Script.ScriptNum.decode_num(<<>>)
0

iex> BSV.Script.ScriptNum.decode_num(<<0x81>>)
-1

@spec encode_num(integer()) :: binary()

Encode an integer as a binary script number.

iex> BSV.Script.ScriptNum.encode_num(0)
<<>>

iex> BSV.Script.ScriptNum.encode_num(-1)
<<0x81>>

@spec minimally_encoded?(binary()) :: boolean()

Check if a binary is minimally encoded as a script number.