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1 // Copyright (C) 2008-2011 NICTA (www.nicta.com.au)
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2 // Copyright (C) 2008-2011 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 Op
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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 unary operations,
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20 //! such as the operand (e.g. the matrix to which the operation is to be applied) and the unary operator (e.g. inverse).
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21 //! The operand is stored as a reference (which can be optimised away),
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22 //! while the operator is "stored" through the template definition (op_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 one matrix can be stored.
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25 //!
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26 //! For example, we could have:
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27 //! Op< Glue< Mat, Mat, glue_times >, op_htrans >
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28
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29 template<typename T1, typename op_type>
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30 class Op : public Base<typename T1::elem_type, Op<T1, op_type> >
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31 {
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32 public:
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33
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34 typedef typename T1::elem_type elem_type;
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35 typedef typename get_pod_type<elem_type>::result pod_type;
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36
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37 inline explicit Op(const T1& in_m);
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38 inline Op(const T1& in_m, const elem_type in_aux);
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39 inline Op(const T1& in_m, const elem_type in_aux, const uword in_aux_uword_a, const uword in_aux_uword_b);
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40 inline Op(const T1& in_m, const uword in_aux_uword_a, const uword in_aux_uword_b);
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41 inline Op(const T1& in_m, const uword in_aux_uword_a, const uword in_aux_uword_b, const uword in_aux_uword_c, const char junk);
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42 inline ~Op();
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43
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44
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45 arma_aligned const T1& m; //!< storage of reference to the operand (eg. a matrix)
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46 arma_aligned elem_type aux; //!< storage of auxiliary data, user defined format
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47 arma_aligned uword aux_uword_a; //!< storage of auxiliary data, uword format
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48 arma_aligned uword aux_uword_b; //!< storage of auxiliary data, uword format
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49 arma_aligned uword aux_uword_c; //!< storage of auxiliary data, uword format
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50
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51 };
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52
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53
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54
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55 //! @}
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