167 lines
5.2 KiB
C++
167 lines
5.2 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 glue_times
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//! @{
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//! \brief
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//! Template metaprogram depth_lhs
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//! calculates the number of Glue<Tx,Ty, glue_type> instances on the left hand side argument of Glue<Tx,Ty, glue_type>
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//! i.e. it recursively expands each Tx, until the type of Tx is not "Glue<..,.., glue_type>" (i.e the "glue_type" changes)
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template<typename glue_type, typename T1>
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struct depth_lhs
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{
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static constexpr uword num = 0;
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};
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template<typename glue_type, typename T1, typename T2>
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struct depth_lhs< glue_type, Glue<T1,T2,glue_type> >
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{
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static constexpr uword num = 1 + depth_lhs<glue_type, T1>::num;
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};
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template<bool do_inv_detect>
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struct glue_times_redirect2_helper
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{
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template<typename T1, typename T2>
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arma_hot inline static void apply(Mat<typename T1::elem_type>& out, const Glue<T1,T2,glue_times>& X);
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};
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template<>
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struct glue_times_redirect2_helper<true>
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{
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template<typename T1, typename T2>
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arma_hot inline static void apply(Mat<typename T1::elem_type>& out, const Glue<T1,T2,glue_times>& X);
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};
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template<bool do_inv_detect>
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struct glue_times_redirect3_helper
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{
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template<typename T1, typename T2, typename T3>
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arma_hot inline static void apply(Mat<typename T1::elem_type>& out, const Glue< Glue<T1,T2,glue_times>,T3,glue_times>& X);
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};
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template<>
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struct glue_times_redirect3_helper<true>
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{
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template<typename T1, typename T2, typename T3>
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arma_hot inline static void apply(Mat<typename T1::elem_type>& out, const Glue< Glue<T1,T2,glue_times>,T3,glue_times>& X);
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};
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template<uword N>
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struct glue_times_redirect
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{
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template<typename T1, typename T2>
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arma_hot inline static void apply(Mat<typename T1::elem_type>& out, const Glue<T1,T2,glue_times>& X);
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};
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template<>
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struct glue_times_redirect<2>
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{
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template<typename T1, typename T2>
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arma_hot inline static void apply(Mat<typename T1::elem_type>& out, const Glue<T1,T2,glue_times>& X);
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};
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template<>
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struct glue_times_redirect<3>
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{
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template<typename T1, typename T2, typename T3>
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arma_hot inline static void apply(Mat<typename T1::elem_type>& out, const Glue< Glue<T1,T2,glue_times>,T3,glue_times>& X);
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};
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template<>
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struct glue_times_redirect<4>
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{
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template<typename T1, typename T2, typename T3, typename T4>
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arma_hot inline static void apply(Mat<typename T1::elem_type>& out, const Glue< Glue< Glue<T1,T2,glue_times>, T3, glue_times>, T4, glue_times>& X);
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};
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//! Class which implements the immediate multiplication of two or more matrices
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class glue_times
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{
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public:
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template<typename T1, typename T2>
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struct traits
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{
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static constexpr bool is_row = T1::is_row;
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static constexpr bool is_col = T2::is_col;
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static constexpr bool is_xvec = false;
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};
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template<typename T1, typename T2>
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arma_hot inline static void apply(Mat<typename T1::elem_type>& out, const Glue<T1,T2,glue_times>& X);
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template<typename T1>
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arma_hot inline static void apply_inplace(Mat<typename T1::elem_type>& out, const T1& X);
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template<typename T1, typename T2>
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arma_hot inline static void apply_inplace_plus(Mat<typename T1::elem_type>& out, const Glue<T1, T2, glue_times>& X, const sword sign);
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//
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template<typename eT, const bool do_trans_A, const bool do_trans_B, typename TA, typename TB>
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arma_inline static uword mul_storage_cost(const TA& A, const TB& B);
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template<typename eT, const bool do_trans_A, const bool do_trans_B, const bool do_scalar_times, typename TA, typename TB>
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arma_hot inline static void apply(Mat<eT>& out, const TA& A, const TB& B, const eT val);
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template<typename eT, const bool do_trans_A, const bool do_trans_B, const bool do_trans_C, const bool do_scalar_times, typename TA, typename TB, typename TC>
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arma_hot inline static void apply(Mat<eT>& out, const TA& A, const TB& B, const TC& C, const eT val);
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template<typename eT, const bool do_trans_A, const bool do_trans_B, const bool do_trans_C, const bool do_trans_D, const bool do_scalar_times, typename TA, typename TB, typename TC, typename TD>
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arma_hot inline static void apply(Mat<eT>& out, const TA& A, const TB& B, const TC& C, const TD& D, const eT val);
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};
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class glue_times_diag
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{
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public:
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template<typename T1, typename T2>
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struct traits
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{
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static constexpr bool is_row = T1::is_row;
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static constexpr bool is_col = T2::is_col;
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static constexpr bool is_xvec = false;
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};
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template<typename T1, typename T2>
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arma_hot inline static void apply(Mat<typename T1::elem_type>& out, const Glue<T1, T2, glue_times_diag>& X);
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};
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//! @}
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