comparison armadillo-2.4.4/include/armadillo_bits/diagview_bones.hpp @ 0:8b6102e2a9b0

Armadillo Library

+// Copyright (C) 2008-2011 NICTA (www.nicta.com.au)
+// Copyright (C) 2008-2011 Conrad Sanderson
+// 
+// This file is part of the Armadillo C++ library.
+// It is provided without any warranty of fitness
+// for any purpose. You can redistribute this file
+// and/or modify it under the terms of the GNU
+// Lesser General Public License (LGPL) as published
+// by the Free Software Foundation, either version 3
+// of the License or (at your option) any later version.
+// (see http://www.opensource.org/licenses for more info)
+
+
+//! \addtogroup diagview
+//! @{
+
+
+//! Class for storing data required to extract and set the diagonals of a matrix
+template<typename eT>
+class diagview : public Base<eT, diagview<eT> >
+  {
+  public:    arma_aligned const Mat<eT>& m;
+  protected: arma_aligned       Mat<eT>* m_ptr;
+  
+  public:
+  
+  typedef eT                                elem_type;
+  typedef typename get_pod_type<eT>::result pod_type;
+  
+  const uword row_offset;
+  const uword col_offset;
+  
+  const uword n_rows;     // equal to n_elem
+  const uword n_elem;
+  
+  static const uword n_cols = 1;
+  
+  
+  protected:
+  
+  arma_inline diagview(const Mat<eT>& in_m, const uword in_row_offset, const uword in_col_offset, const uword len);
+  arma_inline diagview(      Mat<eT>& in_m, const uword in_row_offset, const uword in_col_offset, const uword len);
+  
+  
+  public:
+  
+  inline ~diagview();
+  
+  inline void operator=(const diagview& x);
+  
+  inline void operator+=(const eT val);
+  inline void operator-=(const eT val);
+  inline void operator*=(const eT val);
+  inline void operator/=(const eT val);
+  
+  template<typename T1> inline void operator= (const Base<eT,T1>& x);
+  template<typename T1> inline void operator+=(const Base<eT,T1>& x);
+  template<typename T1> inline void operator-=(const Base<eT,T1>& x);
+  template<typename T1> inline void operator%=(const Base<eT,T1>& x);
+  template<typename T1> inline void operator/=(const Base<eT,T1>& x);
+  
+  
+  arma_inline eT& operator[](const uword i);
+  arma_inline eT  operator[](const uword i) const;
+  
+  arma_inline eT&         at(const uword i);
+  arma_inline eT          at(const uword i) const;
+  
+  arma_inline eT& operator()(const uword i);
+  arma_inline eT  operator()(const uword i) const;
+  
+  arma_inline eT&         at(const uword in_n_row, const uword in_n_col);
+  arma_inline eT          at(const uword in_n_row, const uword in_n_col) const;
+   
+  arma_inline eT& operator()(const uword in_n_row, const uword in_n_col);
+  arma_inline eT  operator()(const uword in_n_row, const uword in_n_col) const;
+  
+  
+  inline void fill(const eT val);
+  inline void zeros();
+  inline void ones();
+  
+  inline static void extract(Mat<eT>& out, const diagview& in);
+  
+  inline static void  plus_inplace(Mat<eT>& out, const diagview& in);
+  inline static void minus_inplace(Mat<eT>& out, const diagview& in);
+  inline static void schur_inplace(Mat<eT>& out, const diagview& in);
+  inline static void   div_inplace(Mat<eT>& out, const diagview& in);
+  
+  
+  private:
+  
+  friend class Mat<eT>;
+  friend class subview<eT>;
+  
+  diagview();
+  //diagview(const diagview&);  // making this private causes an error under gcc 4.1/4.2, but not 4.3
+  };
+
+
+//! @}