AbstractLinAlgPack_EtaVector.hpp

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#ifndef ETA_VECTOR_H
#define ETA_VECTOR_H

#include "AbstractLinAlgPack_SpVectorClass.hpp"

namespace AbstractLinAlgPack {

class EtaVector {
public:
  
  typedef SpVectorSlice::element_type   ele_t;


  EtaVector( ele_t::index_type i, size_type n, ele_t::value_type alpha = 1.0 )
    : ele_(i,alpha), sv_(&ele_,1,0,n,true)
  {}

  operator const SpVectorSlice() const
  {
    return sv_;
  }

  const SpVectorSlice& operator()() const
  {
    return sv_;
  }

private:
  ele_t     ele_;
  SpVectorSlice sv_;

  // not defined and not to be called
  EtaVector();
  EtaVector& operator=(const EtaVector&);

};  // end class EtaVector


} // namespace AbstractLinAlgPack

#endif  // ETA_VECTOR_H