365 lines
8.8 KiB
C++
365 lines
8.8 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 operator_schur
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//! @{
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// operator %, which we define it to do a schur product (element-wise multiplication)
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//! element-wise multiplication of user-accessible Armadillo objects with same element type
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template<typename T1, typename T2>
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arma_inline
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typename
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enable_if2
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<
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is_arma_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value,
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const eGlue<T1, T2, eglue_schur>
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>::result
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operator%
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(
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const T1& X,
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const T2& Y
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)
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{
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arma_extra_debug_sigprint();
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return eGlue<T1, T2, eglue_schur>(X, Y);
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}
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//! element-wise multiplication of user-accessible Armadillo objects with different element types
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_arma_type<T2>::value && (is_same_type<typename T1::elem_type, typename T2::elem_type>::no)),
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const mtGlue<typename promote_type<typename T1::elem_type, typename T2::elem_type>::result, T1, T2, glue_mixed_schur>
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>::result
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operator%
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(
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const T1& X,
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const T2& Y
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)
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{
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arma_extra_debug_sigprint();
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typedef typename T1::elem_type eT1;
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typedef typename T2::elem_type eT2;
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typedef typename promote_type<eT1,eT2>::result out_eT;
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promote_type<eT1,eT2>::check();
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return mtGlue<out_eT, T1, T2, glue_mixed_schur>( X, Y );
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}
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//! element-wise multiplication of two sparse matrices
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
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SpGlue<T1,T2,spglue_schur>
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>::result
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operator%
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(
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const T1& x,
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const T2& y
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)
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{
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arma_extra_debug_sigprint();
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return SpGlue<T1,T2,spglue_schur>(x, y);
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}
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//! element-wise multiplication of one dense and one sparse object
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
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SpMat<typename T1::elem_type>
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>::result
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operator%
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(
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const T1& x,
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const T2& y
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)
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{
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arma_extra_debug_sigprint();
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SpMat<typename T1::elem_type> out;
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spglue_schur_misc::dense_schur_sparse(out, x, y);
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return out;
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}
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//! element-wise multiplication of one sparse and one dense object
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_sparse_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
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SpMat<typename T1::elem_type>
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>::result
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operator%
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(
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const T1& x,
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const T2& y
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)
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{
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arma_extra_debug_sigprint();
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SpMat<typename T1::elem_type> out;
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// Just call the other order (these operations are commutative)
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// TODO: if there is a matrix size mismatch, the debug assert will print the matrix sizes in wrong order
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spglue_schur_misc::dense_schur_sparse(out, y, x);
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return out;
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}
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//! optimization: sparse % (sparse +/- scalar) can be done without forming the dense result of the (sparse +/- scalar) term
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template<typename T1, typename T2, typename op_type>
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inline
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typename
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enable_if2
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<
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(
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is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value &&
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is_same_type<typename T1::elem_type, typename T2::elem_type>::yes &&
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(is_same_type<op_type, op_sp_plus>::value ||
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is_same_type<op_type, op_sp_minus_pre>::value ||
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is_same_type<op_type, op_sp_minus_post>::value)
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),
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SpMat<typename T1::elem_type>
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>::result
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operator%
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(
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const T1& x,
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const SpToDOp<T2, op_type>& y
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)
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{
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arma_extra_debug_sigprint();
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SpMat<typename T1::elem_type> out;
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op_type::apply_inside_schur(out, x, y);
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return out;
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}
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//! optimization: (sparse +/- scalar) % sparse can be done without forming the dense result of the (sparse +/- scalar) term
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template<typename T1, typename T2, typename op_type>
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inline
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typename
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enable_if2
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<
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(
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is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value &&
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is_same_type<typename T1::elem_type, typename T2::elem_type>::yes &&
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(is_same_type<op_type, op_sp_plus>::value ||
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is_same_type<op_type, op_sp_minus_pre>::value ||
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is_same_type<op_type, op_sp_minus_post>::value)
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),
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SpMat<typename T1::elem_type>
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>::result
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operator%
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(
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const SpToDOp<T1, op_type>& x,
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const T2& y
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)
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{
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arma_extra_debug_sigprint();
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SpMat<typename T1::elem_type> out;
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// Just call the other order (these operations are commutative)
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// TODO: if there is a matrix size mismatch, the debug assert will print the matrix sizes in wrong order
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op_type::apply_inside_schur(out, y, x);
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return out;
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}
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//! element-wise multiplication of two sparse objects with different element types
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::no),
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const mtSpGlue< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result, T1, T2, spglue_schur_mixed >
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>::result
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operator%
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(
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const T1& X,
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const T2& Y
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)
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{
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arma_extra_debug_sigprint();
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typedef typename T1::elem_type eT1;
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typedef typename T2::elem_type eT2;
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typedef typename promote_type<eT1,eT2>::result out_eT;
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promote_type<eT1,eT2>::check();
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return mtSpGlue<out_eT, T1, T2, spglue_schur_mixed>( X, Y );
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}
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//! element-wise multiplication of one dense and one sparse object with different element types
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::no),
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SpMat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result >
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>::result
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operator%
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(
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const T1& x,
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const T2& y
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)
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{
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arma_extra_debug_sigprint();
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SpMat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result > out;
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spglue_schur_mixed::dense_schur_sparse(out, x, y);
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return out;
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}
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//! element-wise multiplication of one sparse and one dense object with different element types
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_sparse_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::no),
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SpMat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result >
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>::result
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operator%
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(
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const T1& x,
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const T2& y
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)
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{
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arma_extra_debug_sigprint();
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SpMat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result > out;
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// Just call the other order (these operations are commutative)
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// TODO: if there is a matrix size mismatch, the debug assert will print the matrix sizes in wrong order
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spglue_schur_mixed::dense_schur_sparse(out, y, x);
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return out;
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}
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template<typename parent, unsigned int mode, typename T2>
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inline
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Mat<typename parent::elem_type>
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operator%
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(
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const subview_each1<parent,mode>& X,
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const Base<typename parent::elem_type,T2>& Y
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)
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{
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arma_extra_debug_sigprint();
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return subview_each1_aux::operator_schur(X, Y.get_ref());
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}
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template<typename T1, typename parent, unsigned int mode>
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arma_inline
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Mat<typename parent::elem_type>
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operator%
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(
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const Base<typename parent::elem_type,T1>& X,
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const subview_each1<parent,mode>& Y
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)
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{
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arma_extra_debug_sigprint();
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return subview_each1_aux::operator_schur(Y, X.get_ref()); // NOTE: swapped order
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}
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template<typename parent, unsigned int mode, typename TB, typename T2>
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inline
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Mat<typename parent::elem_type>
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operator%
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(
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const subview_each2<parent,mode,TB>& X,
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const Base<typename parent::elem_type,T2>& Y
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)
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{
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arma_extra_debug_sigprint();
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return subview_each2_aux::operator_schur(X, Y.get_ref());
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}
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template<typename T1, typename parent, unsigned int mode, typename TB>
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arma_inline
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Mat<typename parent::elem_type>
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operator%
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(
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const Base<typename parent::elem_type,T1>& X,
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const subview_each2<parent,mode,TB>& Y
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)
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{
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arma_extra_debug_sigprint();
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return subview_each2_aux::operator_schur(Y, X.get_ref()); // NOTE: swapped order
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}
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//! @}
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