CPPLapack Code

//=============================================================================
/*! return transposed dssmatrix */
inline _dssmatrix t(const dssmatrix& mat)
{
#ifdef  CPPL_VERBOSE
  std::cerr << "# [MARK] t(const dssmatrix&)"
            << std::endl;
#endif//CPPL_VERBOSE
  
#ifdef  CPPL_DEBUG
  std::cerr << "[WARNING] t(const dssmatrix&)" << std::endl
            << "This function call has no effect "
            << "since the matrix is symmetric." << std::endl;
#endif//CPPL_DEBUG

  dssmatrix newmat(mat);
  return _(newmat);
}

///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////

//=============================================================================
/*! search the index of element having the largest absolute value
  in 0-based numbering system */
inline void idamax(long& i, long& j, const dssmatrix& mat)
{
#ifdef  CPPL_VERBOSE
  std::cerr << "# [MARK] idamax(long&, long&, const dssmatrix&)"
            << std::endl;
#endif//CPPL_VERBOSE
  
  long index( idamax_(mat.VOL, mat.Array, 1) -1 );
  i =mat.Indx[index];
  j =mat.Jndx[index];
}

//=============================================================================
/*! return its largest absolute value */
inline double damax(const dssmatrix& mat)
{
#ifdef  CPPL_VERBOSE
  std::cerr << "# [MARK] damax(const dssmatrix&)"
            << std::endl;
#endif//CPPL_VERBOSE
  
  return mat.Array[idamax_(mat.VOL, mat.Array, 1) -1];
}