153 lines
3.3 KiB
C++
153 lines
3.3 KiB
C++
// Copyright (C) 2015 National ICT Australia (NICTA)
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// -------------------------------------------------------------------
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//
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// Written by Conrad Sanderson - http://conradsanderson.id.au
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//! \addtogroup spglue_join
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//! @{
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template<typename T1, typename T2>
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inline
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void
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spglue_join_cols::apply(SpMat<typename T1::elem_type>& out, const SpGlue<T1,T2,spglue_join_cols>& X)
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{
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arma_extra_debug_sigprint();
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typedef typename T1::elem_type eT;
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const unwrap_spmat<T1> A_tmp(X.A);
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const unwrap_spmat<T2> B_tmp(X.B);
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const SpMat<eT>& A = A_tmp.M;
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const SpMat<eT>& B = B_tmp.M;
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if( (&out != &A) && (&out != &B) )
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{
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spglue_join_cols::apply_noalias(out, A, B);
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}
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else
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{
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SpMat<eT> tmp;
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spglue_join_cols::apply_noalias(tmp, A, B);
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out.steal_mem(tmp);
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}
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}
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template<typename eT>
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inline
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void
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spglue_join_cols::apply_noalias(SpMat<eT>& out, const SpMat<eT>& A, const SpMat<eT>& B)
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{
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arma_extra_debug_sigprint();
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const uword A_n_rows = A.n_rows;
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const uword A_n_cols = A.n_cols;
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const uword B_n_rows = B.n_rows;
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const uword B_n_cols = B.n_cols;
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arma_debug_check
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(
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( (A_n_cols != B_n_cols) && ( (A_n_rows > 0) || (A_n_cols > 0) ) && ( (B_n_rows > 0) || (B_n_cols > 0) ) ),
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"join_cols() / join_vert(): number of columns must be the same"
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);
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out.set_size( A_n_rows + B_n_rows, (std::max)(A_n_cols, B_n_cols) );
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if( out.n_elem > 0 )
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{
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if(A.is_empty() == false)
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{
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out.submat(0, 0, A_n_rows-1, out.n_cols-1) = A;
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}
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if(B.is_empty() == false)
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{
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out.submat(A_n_rows, 0, out.n_rows-1, out.n_cols-1) = B;
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}
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}
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}
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template<typename T1, typename T2>
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inline
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void
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spglue_join_rows::apply(SpMat<typename T1::elem_type>& out, const SpGlue<T1,T2,spglue_join_rows>& X)
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{
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arma_extra_debug_sigprint();
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typedef typename T1::elem_type eT;
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const unwrap_spmat<T1> A_tmp(X.A);
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const unwrap_spmat<T2> B_tmp(X.B);
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const SpMat<eT>& A = A_tmp.M;
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const SpMat<eT>& B = B_tmp.M;
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if( (&out != &A) && (&out != &B) )
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{
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spglue_join_rows::apply_noalias(out, A, B);
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}
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else
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{
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SpMat<eT> tmp;
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spglue_join_rows::apply_noalias(tmp, A, B);
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out.steal_mem(tmp);
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}
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}
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template<typename eT>
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inline
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void
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spglue_join_rows::apply_noalias(SpMat<eT>& out, const SpMat<eT>& A, const SpMat<eT>& B)
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{
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arma_extra_debug_sigprint();
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const uword A_n_rows = A.n_rows;
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const uword A_n_cols = A.n_cols;
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const uword B_n_rows = B.n_rows;
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const uword B_n_cols = B.n_cols;
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arma_debug_check
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(
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( (A_n_rows != B.n_rows) && ( (A_n_rows > 0) || (A_n_cols > 0) ) && ( (B_n_rows > 0) || (B_n_cols > 0) ) ),
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"join_rows() / join_horiz(): number of rows must be the same"
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);
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out.set_size( (std::max)(A_n_rows, B_n_rows), A_n_cols + B_n_cols );
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if( out.n_elem > 0 )
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{
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if(A.is_empty() == false)
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{
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out.submat(0, 0, out.n_rows-1, A.n_cols-1) = A;
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}
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if(B.is_empty() == false)
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{
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out.submat(0, A_n_cols, out.n_rows-1, out.n_cols-1) = B;
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}
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}
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}
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//! @}
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