integer.rb

# frozen_string_literal: true

class Integer
  def to_bin_s
    bin = to_s(2)
    bin.prepend('0') until (bin.length % 8).zero?

    bin.scan(/.{4}/).join(' ')
  end

  def to_hex_s
    hex = to_s(16)

    hex.prepend('0') until hex.length.even?

    hex.scan(/.{2}/).join(' ')
  end

  def to_oct_s
    to_s(8)
  end

  def inspect
    "#{self} (HEX: #{to_hex_s}, OCT: #{to_oct_s}, BIN: #{to_bin_s})"
  end
end