Class: RQRCodeCore::QRMath

Inherits:
Object
  • Object
show all
Defined in:
lib/rqrcode_core/qrcode/qr_math.rb

Class Method Summary collapse

Class Method Details

.gexp(n) ⇒ Object 



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# File 'lib/rqrcode_core/qrcode/qr_math.rb', line 35

def gexp(n)
  while n < 0
    n = n + 255
  end

  while n >= 256
    n = n - 255
  end

  EXP_TABLE[n]
end

.glog(n) ⇒ Object

Raises:



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# File 'lib/rqrcode_core/qrcode/qr_math.rb', line 29

def glog(n)
  raise QRCodeRunTimeError, "glog(#{n})" if ( n < 1 )
  LOG_TABLE[n]
end