QRCode v2.0.0 QRCode.GaloisField View Source

Galios Field GF(256) functions.

Link to this section Summary

Functions

Add two alpha values in GF(256).

Given integer returns alpha exponent. Example

Given alpha exponent returns integer. Example

Link to this section Types

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alpha() View Source
alpha() :: 0..254

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value() View Source
value() :: 1..255

Link to this section Functions

Add two alpha values in GF(256).

Example

iex> QRCode.GaloisField.add(10, 251)
6

iex> QRCode.GaloisField.add(10, 13)
23

Given integer returns alpha exponent. Example:

iex> QRCode.GaloisField.to_a(2)
1

Given alpha exponent returns integer. Example:

iex> QRCode.GaloisField.to_i(1)
2