reedsolomon.h

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#ifndef REEDSOLOMON_H
#define REEDSOLOMON_H

#include <itpp/base/vec.h>
#include <itpp/comm/galois.h>
#include <itpp/comm/channel_code.h>
#include <itpp/itexports.h>

namespace itpp
{

//---------------------- Reed-Solomon --------------------------------------

class ITPP_EXPORT Reed_Solomon : public Channel_Code
{
public:
  Reed_Solomon(int in_m, int in_t, bool sys = false, int in_b = 1);
  virtual ~Reed_Solomon() { }

  virtual void encode(const bvec &uncoded_bits, bvec &coded_bits);
  virtual bvec encode(const bvec &uncoded_bits);

  virtual bool decode(const bvec &coded_bits, const ivec &erasure_positions, bvec &decoded_message, bvec &cw_isvalid);

  virtual bool decode(const bvec &coded_bits, bvec &decoded_message, bvec &cw_isvalid);

  virtual void decode(const bvec &coded_bits, bvec &decoded_bits);
  virtual bvec decode(const bvec &coded_bits);

  // Soft-decision decoding is not implemented
  virtual void decode(const vec &received_signal, bvec &output);
  virtual bvec decode(const vec &received_signal);

  virtual double get_rate() const { return static_cast<double>(k) / n; }

  Reed_Solomon & operator=(const Reed_Solomon &) { return *this; }

protected:
  int m, t, k, n, q, b;

  GFX g;
  const bool systematic;
};

} // namespace itpp

#endif // #ifndef REEDSOLOMON_H