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1 // Copyright (C) 2008-2010 NICTA (www.nicta.com.au)
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2 // Copyright (C) 2008-2010 Conrad Sanderson
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3 //
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4 // This file is part of the Armadillo C++ library.
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5 // It is provided without any warranty of fitness
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6 // for any purpose. You can redistribute this file
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7 // and/or modify it under the terms of the GNU
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8 // Lesser General Public License (LGPL) as published
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9 // by the Free Software Foundation, either version 3
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10 // of the License or (at your option) any later version.
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11 // (see http://www.opensource.org/licenses for more info)
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12
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13
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14 //! \addtogroup Glue
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15 //! @{
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16
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17
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18
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19 //! Class for storing data required for delayed binary operations,
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20 //! such as the operands (e.g. two matrices) and the binary operator (e.g. addition).
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21 //! The operands are stored as references (which can be optimised away),
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22 //! while the operator is "stored" through the template definition (glue_type).
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23 //! The operands can be 'Mat', 'Row', 'Col', 'Op', and 'Glue'.
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24 //! Note that as 'Glue' can be one of the operands, more than two matrices can be stored.
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25 //!
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26 //! For example, we could have: Glue<Mat, Mat, glue_times>
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27 //!
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28 //! Another example is: Glue< Op<Mat, op_htrans>, Op<Mat, op_inv>, glue_times >
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29
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30
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31
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32 template<typename T1, typename T2, typename glue_type>
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33 class Glue : public Base<typename T1::elem_type, Glue<T1, T2, glue_type> >
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34 {
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35 public:
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36
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37 typedef typename T1::elem_type elem_type;
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38 typedef typename get_pod_type<elem_type>::result pod_type;
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39
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40 arma_inline Glue(const T1& in_A, const T2& in_B);
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41 arma_inline Glue(const T1& in_A, const T2& in_B, const uword in_aux_uword);
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42 arma_inline ~Glue();
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43
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44 const T1& A; //!< first operand
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45 const T2& B; //!< second operand
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46 uword aux_uword; //!< storage of auxiliary data, uword format
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47 };
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48
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49
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50
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51 //! @}
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