glue_schur_proto.hpp

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00001 // Copyright (C) 2009 NICTA
00002 // 
00003 // Authors:
00004 // - Conrad Sanderson (conradsand at ieee dot org)
00005 // 
00006 // This file is part of the Armadillo C++ library.
00007 // It is provided without any warranty of fitness
00008 // for any purpose. You can redistribute this file
00009 // and/or modify it under the terms of the GNU
00010 // Lesser General Public License (LGPL) as published
00011 // by the Free Software Foundation, either version 3
00012 // of the License or (at your option) any later version.
00013 // (see http://www.opensource.org/licenses for more info)
00014 
00015 
00016 //! \addtogroup glue_schur
00017 //! @{
00018 
00019 
00020 //! Class which implements the immediate Schur product (element-wise multiplication) of two or more matrices
00021 class glue_schur
00022   {
00023   public:
00024   
00025   // mat
00026   
00027   template<typename eT>
00028   inline static void apply(Mat<eT>& out, const Mat<eT>& A, const Mat<eT>& B);
00029   
00030   template<typename eT>
00031   inline static void apply(Mat<eT>& out, const Mat<eT>& A, const Mat<eT>& B, const Mat<eT>& C);
00032   
00033   template<typename eT>
00034   inline static void apply(Mat<eT>& out, const Glue<Mat<eT>,Mat<eT>,glue_schur>& X);
00035   
00036   template<typename eT>
00037   inline static void apply(Mat<eT>& out, const Glue< Glue<Mat<eT>,Mat<eT>,glue_schur>, Mat<eT>, glue_schur>& X);
00038   
00039   template<typename T1, typename T2>
00040   inline static void apply(Mat<typename T1::elem_type>& out, const Glue<T1,T2,glue_schur>& X);
00041 
00042   
00043   // mat, inplace
00044   
00045   template<typename eT> inline static void apply_inplace(Mat<eT>& out, const Mat<eT>& B);
00046   
00047   template<typename T1, typename op_type>
00048   inline static void apply_inplace(Mat<typename T1::elem_type>& out, const Op<T1, op_type>& X);
00049   
00050   template<typename T1, typename T2, typename glue_type>
00051   inline static void apply_inplace(Mat<typename T1::elem_type>& out, const Glue<T1, T2, glue_type>& X);
00052 
00053   
00054   // matrix schur product with different element types
00055   
00056   template<typename eT1, typename eT2>
00057   inline static void apply_mixed(Mat<typename promote_type<eT1,eT2>::result>& out, const Mat<eT1>& X, const Mat<eT2>& Y);
00058   
00059   };
00060 
00061 
00062 
00063 class glue_schur_diag
00064   {
00065   public:
00066   
00067   template<typename T1, typename T2>
00068   inline static void apply(Mat<typename T1::elem_type>& out, const T1& A, const Op<T2,op_diagmat>& B);
00069   
00070   template<typename T1, typename T2>
00071   inline static void apply(Mat<typename T1::elem_type>& out, const Op<T1,op_diagmat>& A, const Op<T2,op_diagmat>& B);
00072   
00073   
00074   template<typename T1, typename T2>
00075   inline static void apply(Mat<typename T1::elem_type>& out, const Glue<T1, Op<T2,op_diagmat>, glue_schur_diag>& X);
00076   
00077   template<typename T1, typename T2>
00078   inline static void apply(Mat<typename T1::elem_type>& out, const Glue<Op<T1,op_diagmat>, T2, glue_schur_diag>& X);
00079   
00080   template<typename T1, typename T2>
00081   inline static void apply(Mat<typename T1::elem_type>& out, const Glue<Op<T1,op_diagmat>, Op<T2,op_diagmat>, glue_schur_diag>& X);
00082   
00083   };
00084 
00085 //! @}
00086