max@0: // Copyright (C) 2008-2011 NICTA (www.nicta.com.au)
max@0: // Copyright (C) 2008-2011 Conrad Sanderson
max@0: // 
max@0: // This file is part of the Armadillo C++ library.
max@0: // It is provided without any warranty of fitness
max@0: // for any purpose. You can redistribute this file
max@0: // and/or modify it under the terms of the GNU
max@0: // Lesser General Public License (LGPL) as published
max@0: // by the Free Software Foundation, either version 3
max@0: // of the License or (at your option) any later version.
max@0: // (see http://www.opensource.org/licenses for more info)
max@0: 
max@0: 
max@0: //! \addtogroup subview_field
max@0: //! @{
max@0: 
max@0: 
max@0: //! Class for storing data required to construct or apply operations to a subfield
max@0: //! (i.e. where the subfield starts and ends as well as a reference/pointer to the original field),
max@0: template<typename oT>
max@0: class subview_field
max@0:   {
max@0:   public:  const field<oT>& f;
max@0:   protected:     field<oT>* f_ptr;
max@0:   
max@0:   public:
max@0:   
max@0:   typedef oT object_type;
max@0:   
max@0:   const uword aux_row1;
max@0:   const uword aux_col1;
max@0:   
max@0:   const uword n_rows;
max@0:   const uword n_cols;
max@0:   const uword n_elem;
max@0:   
max@0:   
max@0:   protected:
max@0:   
max@0:   arma_inline subview_field(const field<oT>& in_f, const uword in_row1, const uword in_col1, const uword in_n_rows, const uword in_n_cols);
max@0:   arma_inline subview_field(      field<oT>& in_f, const uword in_row1, const uword in_col1, const uword in_n_rows, const uword in_n_cols);
max@0:   
max@0:   
max@0:   public:
max@0:   
max@0:   inline ~subview_field();
max@0:   
max@0:   inline void operator= (const field<oT>& x);
max@0:   inline void operator= (const subview_field& x);
max@0:   
max@0:   arma_inline       oT& operator[](const uword i);
max@0:   arma_inline const oT& operator[](const uword i) const;
max@0:   
max@0:   arma_inline       oT& operator()(const uword i);
max@0:   arma_inline const oT& operator()(const uword i) const;
max@0:   
max@0:   arma_inline       oT&         at(const uword row, const uword col);
max@0:   arma_inline const oT&         at(const uword row, const uword col) const;
max@0:   
max@0:   arma_inline       oT& operator()(const uword row, const uword col);
max@0:   arma_inline const oT& operator()(const uword row, const uword col) const;
max@0:   
max@0:   inline bool check_overlap(const subview_field& x) const;
max@0:   
max@0:   inline static void extract(field<oT>& out, const subview_field& in);
max@0:   
max@0:   
max@0:   private:
max@0:   
max@0:   friend class field<oT>;
max@0:   
max@0:   
max@0:   subview_field();
max@0:   //subview_field(const subview_field&);
max@0:   };
max@0: 
max@0: 
max@0: //! @}