reedsolomon

Documentation

Index

• Variables
• func GenericGF_addOrSubtract(a, b int) int
• type GenericGF
  • func NewGenericGF(primitive, size, b int) *GenericGF
  • func (this *GenericGF) BuildMonomial(degree, coefficient int) (*GenericGFPoly, error)
  • func (this *GenericGF) Exp(a int) int
  • func (this *GenericGF) GetGeneratorBase() int
  • func (this *GenericGF) GetOne() *GenericGFPoly
  • func (this *GenericGF) GetSize() int
  • func (this *GenericGF) GetZero() *GenericGFPoly
  • func (this *GenericGF) Inverse(a int) (int, error)
  • func (this *GenericGF) Log(a int) (int, error)
  • func (this *GenericGF) Multiply(a, b int) int
  • func (this *GenericGF) String() string
• type GenericGFPoly
  • func NewGenericGFPoly(field *GenericGF, coefficients []int) (*GenericGFPoly, error)
  • func (this *GenericGFPoly) AddOrSubtract(other *GenericGFPoly) (*GenericGFPoly, error)
  • func (this *GenericGFPoly) Divide(other *GenericGFPoly) (quotient, remainder *GenericGFPoly, e error)
  • func (this *GenericGFPoly) EvaluateAt(a int) int
  • func (this *GenericGFPoly) GetCoefficient(degree int) int
  • func (this *GenericGFPoly) GetCoefficients() []int
  • func (this *GenericGFPoly) GetDegree() int
  • func (this *GenericGFPoly) IsZero() bool
  • func (this *GenericGFPoly) Multiply(other *GenericGFPoly) (*GenericGFPoly, error)
  • func (this *GenericGFPoly) MultiplyBy(scalar int) *GenericGFPoly
  • func (this *GenericGFPoly) MultiplyByMonomial(degree, coefficient int) (*GenericGFPoly, error)
  • func (this *GenericGFPoly) String() string
• type ReedSolomonDecoder
  • func NewReedSolomonDecoder(field *GenericGF) *ReedSolomonDecoder
  • func (this *ReedSolomonDecoder) Decode(received []int, twoS int) ReedSolomonException
• type ReedSolomonEncoder
  • func NewReedSolomonEncoder(field *GenericGF) *ReedSolomonEncoder
  • func (this *ReedSolomonEncoder) Encode(toEncode []int, ecBytes int) error
• type ReedSolomonException
  • func NewReedSolomonException(msg string) ReedSolomonException
  • func WrapReedSolomonException(err error) ReedSolomonException

Variables

var (
	GenericGF_AZTEC_DATA_12         = NewGenericGF(0x1069, 4096, 1) // x^12 + x^6 + x^5 + x^3 + 1
	GenericGF_AZTEC_DATA_10         = NewGenericGF(0x409, 1024, 1)  // x^10 + x^3 + 1
	GenericGF_AZTEC_DATA_6          = NewGenericGF(0x43, 64, 1)     // x^6 + x + 1
	GenericGF_AZTEC_PARAM           = NewGenericGF(0x13, 16, 1)     // x^4 + x + 1
	GenericGF_QR_CODE_FIELD_256     = NewGenericGF(0x011D, 256, 0)  // x^8 + x^4 + x^3 + x^2 + 1
	GenericGF_DATA_MATRIX_FIELD_256 = NewGenericGF(0x012D, 256, 1)  // x^8 + x^5 + x^3 + x^2 + 1
	GenericGF_AZTEC_DATA_8          = GenericGF_DATA_MATRIX_FIELD_256
	GenericGF_MAXICODE_FIELD_64     = GenericGF_AZTEC_DATA_6
)

Functions

func GenericGF_addOrSubtract

func GenericGF_addOrSubtract(a, b int) int

Types

type GenericGF

type GenericGF struct {
	// contains filtered or unexported fields
}

func NewGenericGF

func NewGenericGF(primitive, size, b int) *GenericGF

func (*GenericGF) BuildMonomial

func (this *GenericGF) BuildMonomial(degree, coefficient int) (*GenericGFPoly, error)

func (*GenericGF) Exp

func (this *GenericGF) Exp(a int) int

func (*GenericGF) GetGeneratorBase

func (this *GenericGF) GetGeneratorBase() int

func (*GenericGF) GetOne

func (this *GenericGF) GetOne() *GenericGFPoly

func (*GenericGF) GetSize

func (this *GenericGF) GetSize() int

func (*GenericGF) GetZero

func (this *GenericGF) GetZero() *GenericGFPoly

func (*GenericGF) Inverse

func (this *GenericGF) Inverse(a int) (int, error)

func (*GenericGF) Log

func (this *GenericGF) Log(a int) (int, error)

func (*GenericGF) Multiply

func (this *GenericGF) Multiply(a, b int) int

func (*GenericGF) String

func (this *GenericGF) String() string

type GenericGFPoly

type GenericGFPoly struct {
	// contains filtered or unexported fields
}

func NewGenericGFPoly

func NewGenericGFPoly(field *GenericGF, coefficients []int) (*GenericGFPoly, error)

func (*GenericGFPoly) AddOrSubtract

func (this *GenericGFPoly) AddOrSubtract(other *GenericGFPoly) (*GenericGFPoly, error)

func (*GenericGFPoly) Divide

func (this *GenericGFPoly) Divide(other *GenericGFPoly) (quotient, remainder *GenericGFPoly, e error)

func (*GenericGFPoly) EvaluateAt

func (this *GenericGFPoly) EvaluateAt(a int) int

func (*GenericGFPoly) GetCoefficient

func (this *GenericGFPoly) GetCoefficient(degree int) int

func (*GenericGFPoly) GetCoefficients

func (this *GenericGFPoly) GetCoefficients() []int

func (*GenericGFPoly) GetDegree

func (this *GenericGFPoly) GetDegree() int

func (*GenericGFPoly) IsZero

func (this *GenericGFPoly) IsZero() bool

func (*GenericGFPoly) Multiply

func (this *GenericGFPoly) Multiply(other *GenericGFPoly) (*GenericGFPoly, error)

func (*GenericGFPoly) MultiplyBy

func (this *GenericGFPoly) MultiplyBy(scalar int) *GenericGFPoly

func (*GenericGFPoly) MultiplyByMonomial

func (this *GenericGFPoly) MultiplyByMonomial(degree, coefficient int) (*GenericGFPoly, error)

func (*GenericGFPoly) String

func (this *GenericGFPoly) String() string

type ReedSolomonDecoder

type ReedSolomonDecoder struct {
	// contains filtered or unexported fields
}

func NewReedSolomonDecoder

func NewReedSolomonDecoder(field *GenericGF) *ReedSolomonDecoder

func (*ReedSolomonDecoder) Decode

func (this *ReedSolomonDecoder) Decode(received []int, twoS int) ReedSolomonException

type ReedSolomonEncoder

type ReedSolomonEncoder struct {
	// contains filtered or unexported fields
}

func NewReedSolomonEncoder

func NewReedSolomonEncoder(field *GenericGF) *ReedSolomonEncoder

func (*ReedSolomonEncoder) Encode

func (this *ReedSolomonEncoder) Encode(toEncode []int, ecBytes int) error

type ReedSolomonException

type ReedSolomonException interface {
	error
	// contains filtered or unexported methods
}

func NewReedSolomonException

func NewReedSolomonException(msg string) ReedSolomonException

func WrapReedSolomonException

func WrapReedSolomonException(err error) ReedSolomonException