125 lines
2.5 KiB
C++
125 lines
2.5 KiB
C++
// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2008-2016 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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//! \addtogroup spop_vectorise
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//! @{
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template<typename T1>
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inline
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void
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spop_vectorise_col::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1, spop_vectorise_col>& in)
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{
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arma_extra_debug_sigprint();
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spop_vectorise_col::apply_direct(out, in.m);
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}
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template<typename T1>
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inline
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void
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spop_vectorise_col::apply_direct(SpMat<typename T1::elem_type>& out, const T1& expr)
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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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if(out.vec_state == 0)
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{
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out = expr;
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out.reshape(out.n_elem, 1);
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}
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else
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{
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SpMat<eT> tmp = expr;
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tmp.reshape(tmp.n_elem, 1);
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out.steal_mem(tmp);
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}
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}
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template<typename T1>
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inline
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void
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spop_vectorise_row::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1, spop_vectorise_row>& in)
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{
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arma_extra_debug_sigprint();
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spop_vectorise_row::apply_direct(out, in.m);
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}
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template<typename T1>
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inline
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void
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spop_vectorise_row::apply_direct(SpMat<typename T1::elem_type>& out, const T1& expr)
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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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// NOTE: row-wise vectorisation of sparse matrices is not recommended due to the CSC storage format
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if(out.vec_state == 0)
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{
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out = strans(expr);
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out.reshape(1, out.n_elem);
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}
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else
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{
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SpMat<eT> tmp = strans(expr);
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tmp.reshape(1, tmp.n_elem);
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out.steal_mem(tmp);
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}
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}
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template<typename T1>
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inline
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void
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spop_vectorise_all::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1, spop_vectorise_all>& in)
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{
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arma_extra_debug_sigprint();
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const uword dim = in.aux_uword_a;
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if(dim == 0)
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{
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spop_vectorise_col::apply_direct(out, in.m);
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}
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else
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{
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spop_vectorise_row::apply_direct(out, in.m);
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}
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}
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//! @}
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