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 00017 //! @{ 00018 00019 00020 //! Class for storing data required for delayed binary operations, 00021 //! such as the operands (e.g. two matrices) and the binary operator (e.g. addition). 00022 //! The operands are stored as references (which can be optimised away), 00023 //! while the operator is "stored" through the template definition (glue_type). 00024 //! The operands can be 'Mat', 'Row', 'Col', 'Op', and 'Glue'. 00025 //! Note that as 'Glue' can be one of the operands, more than two matrices can be stored. 00026 //! 00027 //! For example, we could have: Glue< Glue<Mat, Mat, glue_times>, Mat, glue_plus> 00028 //! 00029 //! Another example is: Glue< Op<Mat, op_trans>, Op<Mat, op_inv>, glue_times > 00030 //! 00031 //! More complicated example: Glue< Op< Glue<Mat, Mat, glue_plus>, op_trans>, Op<Mat, op_inv>, glue_times > 00032 //! 00033 00034 template<typename T1, typename T2, typename glue_type> 00035 class Glue : public Base<typename T1::elem_type, Glue<T1, T2, glue_type> > 00036 { 00037 public: 00038 00039 typedef typename T1::elem_type elem_type; 00040 typedef typename get_pod_type<elem_type>::pod_type pod_type; 00041 00042 arma_inline Glue(const T1& in_A, const T2& in_B); 00043 arma_inline ~Glue(); 00044 00045 const T1& A; //!< first operand 00046 const T2& B; //!< second operand 00047 00048 }; 00049 00050 00051 //! @}