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 diagview
max@0: //! @{
max@0: 
max@0: 
max@0: template<typename eT>
max@0: inline
max@0: diagview<eT>::~diagview()
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   }
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: diagview<eT>::diagview(const Mat<eT>& in_m, const uword in_row_offset, const uword in_col_offset, const uword in_len)
max@0:   : m(in_m)
max@0:   , m_ptr(0)
max@0:   , row_offset(in_row_offset)
max@0:   , col_offset(in_col_offset)
max@0:   , n_rows(in_len)
max@0:   , n_elem(in_len)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: diagview<eT>::diagview(Mat<eT>& in_m, const uword in_row_offset, const uword in_col_offset, const uword in_len)
max@0:   : m(in_m)
max@0:   , m_ptr(&in_m)
max@0:   , row_offset(in_row_offset)
max@0:   , col_offset(in_col_offset)
max@0:   , n_rows(in_len)
max@0:   , n_elem(in_len)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! set a diagonal of our matrix using a diagonal from a foreign matrix
max@0: template<typename eT>
max@0: inline
max@0: void
max@0: diagview<eT>::operator= (const diagview<eT>& x)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   diagview<eT>& t = *this;
max@0:   
max@0:   arma_debug_check( (t.n_elem != x.n_elem), "diagview: diagonals have incompatible lengths");
max@0:   
max@0:         Mat<eT>& t_m = *(t.m_ptr);
max@0:   const Mat<eT>& x_m = x.m;
max@0:   
max@0:   if(&t_m != &x_m)
max@0:     {
max@0:     const uword t_n_elem     = t.n_elem;
max@0:     const uword t_row_offset = t.row_offset;
max@0:     const uword t_col_offset = t.col_offset;
max@0:     
max@0:     const uword x_row_offset = x.row_offset;
max@0:     const uword x_col_offset = x.col_offset;
max@0:     
max@0:     uword i,j;
max@0:     for(i=0, j=1; j < t_n_elem; i+=2, j+=2)
max@0:       {
max@0:       const eT tmp_i = x_m.at(i + x_row_offset, i + x_col_offset);
max@0:       const eT tmp_j = x_m.at(j + x_row_offset, j + x_col_offset);
max@0:       
max@0:       t_m.at(i + t_row_offset, i + t_col_offset) = tmp_i;
max@0:       t_m.at(j + t_row_offset, j + t_col_offset) = tmp_j;
max@0:       }
max@0:     
max@0:     if(i < t_n_elem)
max@0:       {
max@0:       t_m.at(i + t_row_offset, i + t_col_offset) = x_m.at(i + x_row_offset, i + x_col_offset);
max@0:       }
max@0:     }
max@0:   else
max@0:     {
max@0:     const Mat<eT> tmp = x;
max@0:     
max@0:     (*this).operator=(tmp);
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: inline
max@0: void
max@0: diagview<eT>::operator+=(const eT val)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   Mat<eT>& t_m = (*m_ptr);
max@0:   
max@0:   const uword t_n_elem     = n_elem;
max@0:   const uword t_row_offset = row_offset;
max@0:   const uword t_col_offset = col_offset;
max@0:   
max@0:   for(uword i=0; i<t_n_elem; ++i)
max@0:     {
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) += val;
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: inline
max@0: void
max@0: diagview<eT>::operator-=(const eT val)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   Mat<eT>& t_m = (*m_ptr);
max@0:   
max@0:   const uword t_n_elem     = n_elem;
max@0:   const uword t_row_offset = row_offset;
max@0:   const uword t_col_offset = col_offset;
max@0:   
max@0:   for(uword i=0; i<t_n_elem; ++i)
max@0:     {
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) -= val;
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: inline
max@0: void
max@0: diagview<eT>::operator*=(const eT val)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   Mat<eT>& t_m = (*m_ptr);
max@0:   
max@0:   const uword t_n_elem     = n_elem;
max@0:   const uword t_row_offset = row_offset;
max@0:   const uword t_col_offset = col_offset;
max@0:   
max@0:   for(uword i=0; i<t_n_elem; ++i)
max@0:     {
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) *= val;
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: inline
max@0: void
max@0: diagview<eT>::operator/=(const eT val)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   Mat<eT>& t_m = (*m_ptr);
max@0:   
max@0:   const uword t_n_elem     = n_elem;
max@0:   const uword t_row_offset = row_offset;
max@0:   const uword t_col_offset = col_offset;
max@0:   
max@0:   for(uword i=0; i<t_n_elem; ++i)
max@0:     {
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) /= val;
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! set a diagonal of our matrix using data from a foreign object
max@0: template<typename eT>
max@0: template<typename T1>
max@0: inline
max@0: void
max@0: diagview<eT>::operator= (const Base<eT,T1>& o)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   const unwrap<T1> tmp(o.get_ref());
max@0:   const Mat<eT>& x = tmp.M;
max@0:   
max@0:   diagview<eT>& t = *this;
max@0:   
max@0:   arma_debug_check
max@0:     (
max@0:     ( (t.n_elem != x.n_elem) || (x.is_vec() == false) ),
max@0:     "diagview: given object has incompatible size"
max@0:     );
max@0:   
max@0:   Mat<eT>& t_m = *(t.m_ptr);
max@0:   
max@0:   const uword t_n_elem     = t.n_elem;
max@0:   const uword t_row_offset = t.row_offset;
max@0:   const uword t_col_offset = t.col_offset;
max@0:   
max@0:   const eT* x_mem = x.memptr();
max@0:   
max@0:   uword i,j;
max@0:   for(i=0, j=1; j < t_n_elem; i+=2, j+=2)
max@0:     {
max@0:     const eT tmp_i = x_mem[i];
max@0:     const eT tmp_j = x_mem[j];
max@0:     
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) = tmp_i;
max@0:     t_m.at( j + t_row_offset,  j + t_col_offset) = tmp_j;
max@0:     }
max@0:   
max@0:   if(i < t_n_elem)
max@0:     {
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) = x_mem[i];
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: template<typename T1>
max@0: inline
max@0: void
max@0: diagview<eT>::operator+=(const Base<eT,T1>& o)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   const unwrap<T1> tmp(o.get_ref());
max@0:   const Mat<eT>& x = tmp.M;
max@0:   
max@0:   diagview<eT>& t = *this;
max@0:   
max@0:   arma_debug_check
max@0:     (
max@0:     ( (t.n_elem != x.n_elem) || (x.is_vec() == false) ),
max@0:     "diagview: given object has incompatible size"
max@0:     );
max@0:   
max@0:   Mat<eT>& t_m = *(t.m_ptr);
max@0:   
max@0:   const uword t_n_elem     = t.n_elem;
max@0:   const uword t_row_offset = t.row_offset;
max@0:   const uword t_col_offset = t.col_offset;
max@0:   
max@0:   const eT* x_mem = x.memptr();
max@0:   
max@0:   uword i,j;
max@0:   for(i=0, j=1; j < t_n_elem; i+=2, j+=2)
max@0:     {
max@0:     const eT tmp_i = x_mem[i];
max@0:     const eT tmp_j = x_mem[j];
max@0:     
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) += tmp_i;
max@0:     t_m.at( j + t_row_offset,  j + t_col_offset) += tmp_j;
max@0:     }
max@0:   
max@0:   if(i < t_n_elem)
max@0:     {
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) += x_mem[i];
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: template<typename T1>
max@0: inline
max@0: void
max@0: diagview<eT>::operator-=(const Base<eT,T1>& o)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   const unwrap<T1> tmp(o.get_ref());
max@0:   const Mat<eT>& x = tmp.M;
max@0:   
max@0:   diagview<eT>& t = *this;
max@0:   
max@0:   arma_debug_check
max@0:     (
max@0:     ( (t.n_elem != x.n_elem) || (x.is_vec() == false) ),
max@0:     "diagview: given object has incompatible size"
max@0:     );
max@0:   
max@0:   Mat<eT>& t_m = *(t.m_ptr);
max@0:   
max@0:   const uword t_n_elem     = t.n_elem;
max@0:   const uword t_row_offset = t.row_offset;
max@0:   const uword t_col_offset = t.col_offset;
max@0:   
max@0:   const eT* x_mem = x.memptr();
max@0:   
max@0:   uword i,j;
max@0:   for(i=0, j=1; j < t_n_elem; i+=2, j+=2)
max@0:     {
max@0:     const eT tmp_i = x_mem[i];
max@0:     const eT tmp_j = x_mem[j];
max@0:     
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) -= tmp_i;
max@0:     t_m.at( j + t_row_offset,  j + t_col_offset) -= tmp_j;
max@0:     }
max@0:   
max@0:   if(i < t_n_elem)
max@0:     {
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) -= x_mem[i];
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: template<typename T1>
max@0: inline
max@0: void
max@0: diagview<eT>::operator%=(const Base<eT,T1>& o)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   const unwrap<T1> tmp(o.get_ref());
max@0:   const Mat<eT>& x = tmp.M;
max@0:   
max@0:   diagview<eT>& t = *this;
max@0:   
max@0:   arma_debug_check
max@0:     (
max@0:     ( (t.n_elem != x.n_elem) || (x.is_vec() == false) ),
max@0:     "diagview: given object has incompatible size"
max@0:     );
max@0:   
max@0:   Mat<eT>& t_m = *(t.m_ptr);
max@0:   
max@0:   const uword t_n_elem     = t.n_elem;
max@0:   const uword t_row_offset = t.row_offset;
max@0:   const uword t_col_offset = t.col_offset;
max@0:   
max@0:   const eT* x_mem = x.memptr();
max@0:   
max@0:   uword i,j;
max@0:   for(i=0, j=1; j < t_n_elem; i+=2, j+=2)
max@0:     {
max@0:     const eT tmp_i = x_mem[i];
max@0:     const eT tmp_j = x_mem[j];
max@0:     
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) *= tmp_i;
max@0:     t_m.at( j + t_row_offset,  j + t_col_offset) *= tmp_j;
max@0:     }
max@0:   
max@0:   if(i < t_n_elem)
max@0:     {
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) *= x_mem[i];
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: template<typename T1>
max@0: inline
max@0: void
max@0: diagview<eT>::operator/=(const Base<eT,T1>& o)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   const unwrap<T1> tmp(o.get_ref());
max@0:   const Mat<eT>& x = tmp.M;
max@0:   
max@0:   diagview<eT>& t = *this;
max@0:   
max@0:   arma_debug_check
max@0:     (
max@0:     ( (t.n_elem != x.n_elem) || (x.is_vec() == false) ),
max@0:     "diagview: given object has incompatible size"
max@0:     );
max@0:   
max@0:   Mat<eT>& t_m = *(t.m_ptr);
max@0:   
max@0:   const uword t_n_elem     = t.n_elem;
max@0:   const uword t_row_offset = t.row_offset;
max@0:   const uword t_col_offset = t.col_offset;
max@0:   
max@0:   const eT* x_mem = x.memptr();
max@0:   
max@0:   uword i,j;
max@0:   for(i=0, j=1; j < t_n_elem; i+=2, j+=2)
max@0:     {
max@0:     const eT tmp_i = x_mem[i];
max@0:     const eT tmp_j = x_mem[j];
max@0:     
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) /= tmp_i;
max@0:     t_m.at( j + t_row_offset,  j + t_col_offset) /= tmp_j;
max@0:     }
max@0:   
max@0:   if(i < t_n_elem)
max@0:     {
max@0:     t_m.at( i + t_row_offset,  i + t_col_offset) /= x_mem[i];
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! extract a diagonal and store it as a column vector
max@0: template<typename eT>
max@0: inline
max@0: void
max@0: diagview<eT>::extract(Mat<eT>& out, const diagview<eT>& in)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   // NOTE: we're assuming that the matrix has already been set to the correct size and there is no aliasing;
max@0:   // size setting and alias checking is done by either the Mat contructor or operator=()
max@0:   
max@0:   const Mat<eT>& in_m = in.m;
max@0:   
max@0:   const uword in_n_elem     = in.n_elem;
max@0:   const uword in_row_offset = in.row_offset;
max@0:   const uword in_col_offset = in.col_offset;
max@0:   
max@0:   eT* out_mem = out.memptr();
max@0:   
max@0:   uword i,j;
max@0:   for(i=0, j=1; j < in_n_elem; i+=2, j+=2)
max@0:     {
max@0:     const eT tmp_i = in_m.at( i + in_row_offset, i + in_col_offset );
max@0:     const eT tmp_j = in_m.at( j + in_row_offset, j + in_col_offset );
max@0:     
max@0:     out_mem[i] = tmp_i;
max@0:     out_mem[j] = tmp_j;
max@0:     }
max@0:   
max@0:   if(i < in_n_elem)
max@0:     {
max@0:     out_mem[i] = in_m.at( i + in_row_offset, i + in_col_offset );
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! X += Y.diag()
max@0: template<typename eT>
max@0: inline
max@0: void
max@0: diagview<eT>::plus_inplace(Mat<eT>& out, const diagview<eT>& in)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_debug_assert_same_size(out.n_rows, out.n_cols, in.n_rows, in.n_cols, "addition");
max@0:   
max@0:   const Mat<eT>& in_m = in.m;
max@0:   
max@0:   const uword in_n_elem     = in.n_elem;
max@0:   const uword in_row_offset = in.row_offset;
max@0:   const uword in_col_offset = in.col_offset;
max@0:   
max@0:   eT* out_mem = out.memptr();
max@0:   
max@0:   uword i,j;
max@0:   for(i=0, j=1; j < in_n_elem; i+=2, j+=2)
max@0:     {
max@0:     const eT tmp_i = in_m.at( i + in_row_offset, i + in_col_offset );
max@0:     const eT tmp_j = in_m.at( j + in_row_offset, j + in_col_offset );
max@0:     
max@0:     out_mem[i] += tmp_i;
max@0:     out_mem[j] += tmp_j;
max@0:     }
max@0:   
max@0:   if(i < in_n_elem)
max@0:     {
max@0:     out_mem[i] += in_m.at( i + in_row_offset, i + in_col_offset );
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! X -= Y.diag()
max@0: template<typename eT>
max@0: inline
max@0: void
max@0: diagview<eT>::minus_inplace(Mat<eT>& out, const diagview<eT>& in)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_debug_assert_same_size(out.n_rows, out.n_cols, in.n_rows, in.n_cols, "subtraction");
max@0:   
max@0:   const Mat<eT>& in_m = in.m;
max@0:   
max@0:   const uword in_n_elem     = in.n_elem;
max@0:   const uword in_row_offset = in.row_offset;
max@0:   const uword in_col_offset = in.col_offset;
max@0:   
max@0:   eT* out_mem = out.memptr();
max@0:   
max@0:   uword i,j;
max@0:   for(i=0, j=1; j < in_n_elem; i+=2, j+=2)
max@0:     {
max@0:     const eT tmp_i = in_m.at( i + in_row_offset, i + in_col_offset );
max@0:     const eT tmp_j = in_m.at( j + in_row_offset, j + in_col_offset );
max@0:     
max@0:     out_mem[i] -= tmp_i;
max@0:     out_mem[j] -= tmp_j;
max@0:     }
max@0:   
max@0:   if(i < in_n_elem)
max@0:     {
max@0:     out_mem[i] -= in_m.at( i + in_row_offset, i + in_col_offset );
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! X %= Y.diag()
max@0: template<typename eT>
max@0: inline
max@0: void
max@0: diagview<eT>::schur_inplace(Mat<eT>& out, const diagview<eT>& in)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_debug_assert_same_size(out.n_rows, out.n_cols, in.n_rows, in.n_cols, "element-wise multiplication");
max@0:   
max@0:   const Mat<eT>& in_m = in.m;
max@0:   
max@0:   const uword in_n_elem     = in.n_elem;
max@0:   const uword in_row_offset = in.row_offset;
max@0:   const uword in_col_offset = in.col_offset;
max@0:   
max@0:   eT* out_mem = out.memptr();
max@0:   
max@0:   uword i,j;
max@0:   for(i=0, j=1; j < in_n_elem; i+=2, j+=2)
max@0:     {
max@0:     const eT tmp_i = in_m.at( i + in_row_offset, i + in_col_offset );
max@0:     const eT tmp_j = in_m.at( j + in_row_offset, j + in_col_offset );
max@0:     
max@0:     out_mem[i] *= tmp_i;
max@0:     out_mem[j] *= tmp_j;
max@0:     }
max@0:   
max@0:   if(i < in_n_elem)
max@0:     {
max@0:     out_mem[i] *= in_m.at( i + in_row_offset, i + in_col_offset );
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! X /= Y.diag()
max@0: template<typename eT>
max@0: inline
max@0: void
max@0: diagview<eT>::div_inplace(Mat<eT>& out, const diagview<eT>& in)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_debug_assert_same_size(out.n_rows, out.n_cols, in.n_rows, in.n_cols, "element-wise division");
max@0:   
max@0:   const Mat<eT>& in_m = in.m;
max@0:   
max@0:   const uword in_n_elem     = in.n_elem;
max@0:   const uword in_row_offset = in.row_offset;
max@0:   const uword in_col_offset = in.col_offset;
max@0:   
max@0:   eT* out_mem = out.memptr();
max@0:   
max@0:   uword i,j;
max@0:   for(i=0, j=1; j < in_n_elem; i+=2, j+=2)
max@0:     {
max@0:     const eT tmp_i = in_m.at( i + in_row_offset, i + in_col_offset );
max@0:     const eT tmp_j = in_m.at( j + in_row_offset, j + in_col_offset );
max@0:     
max@0:     out_mem[i] /= tmp_i;
max@0:     out_mem[j] /= tmp_j;
max@0:     }
max@0:   
max@0:   if(i < in_n_elem)
max@0:     {
max@0:     out_mem[i] /= in_m.at( i + in_row_offset, i + in_col_offset );
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: eT&
max@0: diagview<eT>::operator[](const uword i)
max@0:   {
max@0:   return (*m_ptr).at(i+row_offset, i+col_offset);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: eT
max@0: diagview<eT>::operator[](const uword i) const
max@0:   {
max@0:   return m.at(i+row_offset, i+col_offset);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: eT&
max@0: diagview<eT>::at(const uword i)
max@0:   {
max@0:   return (*m_ptr).at(i+row_offset, i+col_offset);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: eT
max@0: diagview<eT>::at(const uword i) const
max@0:   {
max@0:   return m.at(i+row_offset, i+col_offset);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: eT&
max@0: diagview<eT>::operator()(const uword i)
max@0:   {
max@0:   arma_debug_check( (i >= n_elem), "diagview::operator(): out of bounds" );
max@0:   
max@0:   return (*m_ptr).at(i+row_offset, i+col_offset);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: eT
max@0: diagview<eT>::operator()(const uword i) const
max@0:   {
max@0:   arma_debug_check( (i >= n_elem), "diagview::operator(): out of bounds" );
max@0:   
max@0:   return m.at(i+row_offset, i+col_offset);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: eT&
max@0: diagview<eT>::at(const uword row, const uword col)
max@0:   {
max@0:   return (*m_ptr).at(row+row_offset, row+col_offset);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: eT
max@0: diagview<eT>::at(const uword row, const uword col) const
max@0:   {
max@0:   return m.at(row+row_offset, row+col_offset);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: eT&
max@0: diagview<eT>::operator()(const uword row, const uword col)
max@0:   {
max@0:   arma_debug_check( ((row >= n_elem) || (col > 0)), "diagview::operator(): out of bounds" );
max@0:   
max@0:   return (*m_ptr).at(row+row_offset, row+col_offset);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: eT
max@0: diagview<eT>::operator()(const uword row, const uword col) const
max@0:   {
max@0:   arma_debug_check( ((row >= n_elem) || (col > 0)), "diagview::operator(): out of bounds" );
max@0:   
max@0:   return m.at(row+row_offset, row+col_offset);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: inline
max@0: void
max@0: diagview<eT>::fill(const eT val)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   Mat<eT>& x = (*m_ptr);
max@0:   
max@0:   for(uword i=0; i<n_elem; ++i)
max@0:     {
max@0:     x.at(i+row_offset, i+col_offset) = val;
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: inline
max@0: void
max@0: diagview<eT>::zeros()
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   (*this).fill(eT(0));
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: inline
max@0: void
max@0: diagview<eT>::ones()
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   (*this).fill(eT(1));
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! @}