64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// 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 op_row_as_mat
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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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op_row_as_mat::apply(Mat<typename T1::elem_type>& out, const CubeToMatOp<T1, op_row_as_mat>& expr)
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{
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arma_debug_sigprint();
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typedef typename T1::elem_type eT;
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const unwrap_cube<T1> U(expr.m);
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const Cube<eT>& A = U.M;
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const uword in_row = expr.aux_uword;
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arma_conform_check_bounds( (in_row >= A.n_rows), "Cube::row_as_mat(): index out of bounds" );
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const uword A_n_cols = A.n_cols;
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const uword A_n_rows = A.n_rows;
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const uword A_n_slices = A.n_slices;
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out.set_size(A_n_slices, A_n_cols);
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for(uword s=0; s < A_n_slices; ++s)
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{
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const eT* A_mem = &(A.at(in_row, 0, s));
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eT* out_mem = &(out.at(s,0));
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for(uword c=0; c < A_n_cols; ++c)
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{
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(*out_mem) = (*A_mem);
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A_mem += A_n_rows;
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out_mem += A_n_slices;
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}
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}
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}
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//! @}
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