Chris@49: // Copyright (C) 2008-2011 NICTA (www.nicta.com.au)
Chris@49: // Copyright (C) 2008-2011 Conrad Sanderson
Chris@49: // 
Chris@49: // This Source Code Form is subject to the terms of the Mozilla Public
Chris@49: // License, v. 2.0. If a copy of the MPL was not distributed with this
Chris@49: // file, You can obtain one at http://mozilla.org/MPL/2.0/.
Chris@49: 
Chris@49: 
Chris@49: //! \addtogroup glue_join
Chris@49: //! @{
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: template<typename T1, typename T2>
Chris@49: inline
Chris@49: void
Chris@49: glue_join::apply(Mat<typename T1::elem_type>& out, const Glue<T1,T2,glue_join>& X)
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   typedef typename T1::elem_type eT;
Chris@49: 
Chris@49:   const unwrap<T1> A_tmp(X.A);
Chris@49:   const unwrap<T2> B_tmp(X.B);
Chris@49:   
Chris@49:   const Mat<eT>& A = A_tmp.M;
Chris@49:   const Mat<eT>& B = B_tmp.M;
Chris@49:   
Chris@49:   const uword A_n_rows = A.n_rows;
Chris@49:   const uword A_n_cols = A.n_cols;
Chris@49:   
Chris@49:   const uword B_n_rows = B.n_rows;
Chris@49:   const uword B_n_cols = B.n_cols;
Chris@49:   
Chris@49:   const uword join_type = X.aux_uword;
Chris@49:   
Chris@49:   if(join_type == 0)
Chris@49:     {
Chris@49:     arma_debug_check
Chris@49:       (
Chris@49:       ( (A_n_cols != B_n_cols) && ( (A_n_rows > 0) || (A_n_cols > 0) ) && ( (B_n_rows > 0) || (B_n_cols > 0) ) ),
Chris@49:       "join_cols(): number of columns must be the same"
Chris@49:       );
Chris@49:     }
Chris@49:   else
Chris@49:     {
Chris@49:     arma_debug_check
Chris@49:       (
Chris@49:       ( (A_n_rows != B.n_rows) && ( (A_n_rows > 0) || (A_n_cols > 0) ) && ( (B_n_rows > 0) || (B_n_cols > 0) ) ),
Chris@49:       "join_rows(): number of rows must be the same"
Chris@49:       );
Chris@49:     }
Chris@49:   
Chris@49:   
Chris@49:   if( (&out != &A) && (&out != &B) )
Chris@49:     {
Chris@49:     if(join_type == 0)   // join columns (i.e. result matrix has more rows)
Chris@49:       {
Chris@49:       out.set_size( A_n_rows + B_n_rows, (std::max)(A_n_cols, B_n_cols) );
Chris@49:       
Chris@49:       if( out.n_elem > 0 )
Chris@49:         {
Chris@49:         if(A.is_empty() == false)
Chris@49:           { 
Chris@49:           out.submat(0,        0,   A_n_rows-1, out.n_cols-1) = A;
Chris@49:           }
Chris@49:           
Chris@49:         if(B.is_empty() == false)
Chris@49:           {
Chris@49:           out.submat(A_n_rows, 0, out.n_rows-1, out.n_cols-1) = B;
Chris@49:           }
Chris@49:         }
Chris@49:       }
Chris@49:     else   // join rows  (i.e. result matrix has more columns)
Chris@49:       {
Chris@49:       out.set_size( (std::max)(A_n_rows, B_n_rows), A_n_cols + B_n_cols );
Chris@49:       
Chris@49:       if( out.n_elem > 0 )
Chris@49:         {
Chris@49:         if(A.is_empty() == false)
Chris@49:           {
Chris@49:           out.submat(0, 0,        out.n_rows-1,   A.n_cols-1) = A;
Chris@49:           }
Chris@49:         
Chris@49:         if(B.is_empty() == false)
Chris@49:           {
Chris@49:           out.submat(0, A_n_cols, out.n_rows-1, out.n_cols-1) = B;
Chris@49:           }
Chris@49:         }
Chris@49:       }
Chris@49:     }
Chris@49:   else  // we have aliasing
Chris@49:     {
Chris@49:     Mat<eT> C;
Chris@49:     
Chris@49:     if(join_type == 0)
Chris@49:       {
Chris@49:       C.set_size( A_n_rows + B_n_rows, (std::max)(A_n_cols, B_n_cols) );
Chris@49:       
Chris@49:       if( C.n_elem > 0 )
Chris@49:         {
Chris@49:         if(A.is_empty() == false)
Chris@49:           {
Chris@49:           C.submat(0,        0, A_n_rows-1, C.n_cols-1) = A;
Chris@49:           }
Chris@49:         
Chris@49:         if(B.is_empty() == false)
Chris@49:           {
Chris@49:           C.submat(A_n_rows, 0, C.n_rows-1, C.n_cols-1) = B;
Chris@49:           }
Chris@49:         }
Chris@49:       }
Chris@49:     else
Chris@49:       {
Chris@49:       C.set_size( (std::max)(A_n_rows, B_n_rows), A_n_cols + B_n_cols );
Chris@49:       
Chris@49:       if( C.n_elem > 0 )
Chris@49:         {
Chris@49:         if(A.is_empty() == false)
Chris@49:           {
Chris@49:           C.submat(0, 0,        C.n_rows-1, A_n_cols-1) = A;
Chris@49:           }
Chris@49:         
Chris@49:         if(B.is_empty() == false)
Chris@49:           {
Chris@49:           C.submat(0, A_n_cols, C.n_rows-1, C.n_cols-1) = B;
Chris@49:           }
Chris@49:         }
Chris@49:       }
Chris@49:     
Chris@49:     out.steal_mem(C);
Chris@49:     }
Chris@49:   
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: template<typename T1, typename T2>
Chris@49: inline
Chris@49: void
Chris@49: glue_join::apply(Cube<typename T1::elem_type>& out, const GlueCube<T1,T2,glue_join>& X)
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   typedef typename T1::elem_type eT;
Chris@49: 
Chris@49:   const unwrap_cube<T1> A_tmp(X.A);
Chris@49:   const unwrap_cube<T2> B_tmp(X.B);
Chris@49:   
Chris@49:   const Cube<eT>& A = A_tmp.M;
Chris@49:   const Cube<eT>& B = B_tmp.M;
Chris@49:   
Chris@49:   if(A.n_elem == 0)
Chris@49:     {
Chris@49:     out = B;
Chris@49:     return;
Chris@49:     }
Chris@49:   
Chris@49:   if(B.n_elem == 0)
Chris@49:     {
Chris@49:     out = A;
Chris@49:     return;
Chris@49:     }
Chris@49:   
Chris@49:   
Chris@49:   arma_debug_check( ( (A.n_rows != B.n_rows) || (A.n_cols != B.n_cols) ), "join_slices(): size of slices must be the same" );
Chris@49:   
Chris@49:   
Chris@49:   if( (&out != &A) && (&out != &B) )
Chris@49:     {
Chris@49:     out.set_size(A.n_rows, A.n_cols, A.n_slices + B.n_slices);
Chris@49:     
Chris@49:     out.slices(0,          A.n_slices-1  ) = A;
Chris@49:     out.slices(A.n_slices, out.n_slices-1) = B;
Chris@49:     }
Chris@49:   else  // we have aliasing
Chris@49:     {
Chris@49:     Cube<eT> C(A.n_rows, A.n_cols, A.n_slices + B.n_slices);
Chris@49:     
Chris@49:     C.slices(0,          A.n_slices-1) = A;
Chris@49:     C.slices(A.n_slices, C.n_slices-1) = B;
Chris@49:     
Chris@49:     out.steal_mem(C);
Chris@49:     }
Chris@49:   
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: //! @}