// SPDX-License-Identifier: Apache-2.0 // // Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au) // Copyright 2008-2016 National ICT Australia (NICTA) // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // ------------------------------------------------------------------------ //! \addtogroup operator_schur //! @{ // operator %, which we define it to do a schur product (element-wise multiplication) //! element-wise multiplication of user-accessible Armadillo objects with same element type template<typename T1, typename T2> arma_inline typename enable_if2 < is_arma_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value, const eGlue<T1, T2, eglue_schur> >::result operator% ( const T1& X, const T2& Y ) { arma_debug_sigprint(); return eGlue<T1, T2, eglue_schur>(X, Y); } //! element-wise multiplication of user-accessible Armadillo objects with different element types template<typename T1, typename T2> inline typename enable_if2 < (is_arma_type<T1>::value && is_arma_type<T2>::value && (is_same_type<typename T1::elem_type, typename T2::elem_type>::no)), const mtGlue<typename promote_type<typename T1::elem_type, typename T2::elem_type>::result, T1, T2, glue_mixed_schur> >::result operator% ( const T1& X, const T2& Y ) { arma_debug_sigprint(); typedef typename T1::elem_type eT1; typedef typename T2::elem_type eT2; typedef typename promote_type<eT1,eT2>::result out_eT; promote_type<eT1,eT2>::check(); return mtGlue<out_eT, T1, T2, glue_mixed_schur>( X, Y ); } //! element-wise multiplication of two sparse matrices template<typename T1, typename T2> inline typename enable_if2 < (is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value), SpGlue<T1,T2,spglue_schur> >::result operator% ( const T1& x, const T2& y ) { arma_debug_sigprint(); return SpGlue<T1,T2,spglue_schur>(x, y); } //! element-wise multiplication of one dense and one sparse object template<typename T1, typename T2> inline typename enable_if2 < (is_arma_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value), SpMat<typename T1::elem_type> >::result operator% ( const T1& x, const T2& y ) { arma_debug_sigprint(); SpMat<typename T1::elem_type> out; spglue_schur_misc::dense_schur_sparse(out, x, y); return out; } //! element-wise multiplication of one sparse and one dense object template<typename T1, typename T2> inline typename enable_if2 < (is_arma_sparse_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value), SpMat<typename T1::elem_type> >::result operator% ( const T1& x, const T2& y ) { arma_debug_sigprint(); SpMat<typename T1::elem_type> out; // Just call the other order (these operations are commutative) // TODO: if there is a matrix size mismatch, the debug assert will print the matrix sizes in wrong order spglue_schur_misc::dense_schur_sparse(out, y, x); return out; } //! optimization: sparse % (sparse +/- scalar) can be done without forming the dense result of the (sparse +/- scalar) term template<typename T1, typename T2, typename op_type> inline typename enable_if2 < ( is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::yes && (is_same_type<op_type, op_sp_plus>::value || is_same_type<op_type, op_sp_minus_pre>::value || is_same_type<op_type, op_sp_minus_post>::value) ), SpMat<typename T1::elem_type> >::result operator% ( const T1& x, const SpToDOp<T2, op_type>& y ) { arma_debug_sigprint(); SpMat<typename T1::elem_type> out; op_type::apply_inside_schur(out, x, y); return out; } //! optimization: (sparse +/- scalar) % sparse can be done without forming the dense result of the (sparse +/- scalar) term template<typename T1, typename T2, typename op_type> inline typename enable_if2 < ( is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::yes && (is_same_type<op_type, op_sp_plus>::value || is_same_type<op_type, op_sp_minus_pre>::value || is_same_type<op_type, op_sp_minus_post>::value) ), SpMat<typename T1::elem_type> >::result operator% ( const SpToDOp<T1, op_type>& x, const T2& y ) { arma_debug_sigprint(); SpMat<typename T1::elem_type> out; // Just call the other order (these operations are commutative) // TODO: if there is a matrix size mismatch, the debug assert will print the matrix sizes in wrong order op_type::apply_inside_schur(out, y, x); return out; } //! element-wise multiplication of two sparse objects with different element types template<typename T1, typename T2> inline typename enable_if2 < (is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::no), const mtSpGlue< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result, T1, T2, spglue_schur_mixed > >::result operator% ( const T1& X, const T2& Y ) { arma_debug_sigprint(); typedef typename T1::elem_type eT1; typedef typename T2::elem_type eT2; typedef typename promote_type<eT1,eT2>::result out_eT; promote_type<eT1,eT2>::check(); return mtSpGlue<out_eT, T1, T2, spglue_schur_mixed>( X, Y ); } //! element-wise multiplication of one dense and one sparse object with different element types template<typename T1, typename T2> inline typename enable_if2 < (is_arma_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::no), SpMat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result > >::result operator% ( const T1& x, const T2& y ) { arma_debug_sigprint(); SpMat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result > out; spglue_schur_mixed::dense_schur_sparse(out, x, y); return out; } //! element-wise multiplication of one sparse and one dense object with different element types template<typename T1, typename T2> inline typename enable_if2 < (is_arma_sparse_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::no), SpMat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result > >::result operator% ( const T1& x, const T2& y ) { arma_debug_sigprint(); SpMat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result > out; // Just call the other order (these operations are commutative) // TODO: if there is a matrix size mismatch, the debug assert will print the matrix sizes in wrong order spglue_schur_mixed::dense_schur_sparse(out, y, x); return out; } template<typename parent, unsigned int mode, typename T2> inline Mat<typename parent::elem_type> operator% ( const subview_each1<parent,mode>& X, const Base<typename parent::elem_type,T2>& Y ) { arma_debug_sigprint(); return subview_each1_aux::operator_schur(X, Y.get_ref()); } template<typename T1, typename parent, unsigned int mode> arma_inline Mat<typename parent::elem_type> operator% ( const Base<typename parent::elem_type,T1>& X, const subview_each1<parent,mode>& Y ) { arma_debug_sigprint(); return subview_each1_aux::operator_schur(Y, X.get_ref()); // NOTE: swapped order } template<typename parent, unsigned int mode, typename TB, typename T2> inline Mat<typename parent::elem_type> operator% ( const subview_each2<parent,mode,TB>& X, const Base<typename parent::elem_type,T2>& Y ) { arma_debug_sigprint(); return subview_each2_aux::operator_schur(X, Y.get_ref()); } template<typename T1, typename parent, unsigned int mode, typename TB> arma_inline Mat<typename parent::elem_type> operator% ( const Base<typename parent::elem_type,T1>& X, const subview_each2<parent,mode,TB>& Y ) { arma_debug_sigprint(); return subview_each2_aux::operator_schur(Y, X.get_ref()); // NOTE: swapped order } //! @}