177 lines
3.7 KiB
C++
177 lines
3.7 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 2008-2016 Conrad Sanderson (https://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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// https://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_reverse
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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_reverse::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_reverse>& in)
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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 uword dim = in.aux_uword_a;
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arma_conform_check( (dim > 1), "reverse(): parameter 'dim' must be 0 or 1" );
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if(is_Mat<T1>::value)
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{
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const unwrap<T1> U(in.m);
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if(&out == &(U.M))
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{
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if(dim == 0) { op_flipud::apply_mat_inplace(out); return; }
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if(dim == 1) { op_fliplr::apply_mat_inplace(out); return; }
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}
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// fallthrough if operation is not in-place
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}
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const quasi_unwrap<T1> U(in.m);
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if(U.is_alias(out))
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{
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Mat<eT> tmp;
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if(dim == 0) { op_flipud::apply_mat_noalias(tmp, U.M); }
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if(dim == 1) { op_fliplr::apply_mat_noalias(tmp, U.M); }
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out.steal_mem(tmp);
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}
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else
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{
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if(dim == 0) { op_flipud::apply_mat_noalias(out, U.M); }
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if(dim == 1) { op_fliplr::apply_mat_noalias(out, U.M); }
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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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op_reverse::apply(Mat_noalias<typename T1::elem_type>& out, const Op<T1,op_reverse>& in)
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{
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arma_debug_sigprint();
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const uword dim = in.aux_uword_a;
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arma_conform_check( (dim > 1), "reverse(): parameter 'dim' must be 0 or 1" );
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const quasi_unwrap<T1> U(in.m);
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if(dim == 0) { op_flipud::apply_mat_noalias(out, U.M); }
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if(dim == 1) { op_fliplr::apply_mat_noalias(out, U.M); }
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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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op_reverse_vec::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_reverse_vec>& in)
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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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if(is_Mat<T1>::value)
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{
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const unwrap<T1> U(in.m);
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if(&out == &(U.M))
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{
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if((T1::is_xvec) ? bool(U.M.is_rowvec()) : bool(T1::is_row))
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{
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op_fliplr::apply_mat_inplace(out);
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}
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else
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{
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op_flipud::apply_mat_inplace(out);
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}
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return;
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}
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// fallthrough if operation is not in-place
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}
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const quasi_unwrap<T1> U(in.m);
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if(U.is_alias(out))
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{
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Mat<eT> tmp;
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if((T1::is_xvec) ? bool(U.M.is_rowvec()) : bool(T1::is_row))
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{
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op_fliplr::apply_mat_noalias(tmp, U.M);
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}
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else
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{
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op_flipud::apply_mat_noalias(tmp, U.M);
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}
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out.steal_mem(tmp);
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}
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else
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{
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if((T1::is_xvec) ? bool(U.M.is_rowvec()) : bool(T1::is_row))
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{
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op_fliplr::apply_mat_noalias(out, U.M);
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}
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else
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{
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op_flipud::apply_mat_noalias(out, U.M);
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}
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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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op_reverse_vec::apply(Mat_noalias<typename T1::elem_type>& out, const Op<T1,op_reverse_vec>& in)
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{
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arma_debug_sigprint();
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const quasi_unwrap<T1> U(in.m);
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if((T1::is_xvec) ? bool(U.M.is_rowvec()) : bool(T1::is_row))
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{
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op_fliplr::apply_mat_noalias(out, U.M);
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}
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else
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{
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op_flipud::apply_mat_noalias(out, U.M);
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}
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}
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//! @}
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