50 lines
1.3 KiB
C++
50 lines
1.3 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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namespace newarp
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{
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template<typename eT>
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inline
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SparseGenMatProd<eT>::SparseGenMatProd(const SpMat<eT>& mat_obj)
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: op_mat(mat_obj)
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, n_rows(mat_obj.n_rows)
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, n_cols(mat_obj.n_cols)
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{
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arma_extra_debug_sigprint();
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}
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// Perform the matrix-vector multiplication operation \f$y=Ax\f$.
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// y_out = A * x_in
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template<typename eT>
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inline
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void
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SparseGenMatProd<eT>::perform_op(eT* x_in, eT* y_out) const
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{
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arma_extra_debug_sigprint();
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const Col<eT> x(x_in , n_cols, false, true);
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Col<eT> y(y_out, n_rows, false, true);
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y = op_mat * x;
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}
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} // namespace newarp
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