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maint: Update copyright dates.
author John W. Eaton <jwe@octave.org>
date Wed, 22 Feb 2017 12:39:29 -0500
parents e9a0469dedd9
children 092078913d54
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1 /*
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2
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3 Copyright (C) 2008-2017 Jaroslav Hajek
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if defined (HAVE_CONFIG_H)
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24 # include "config.h"
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25 #endif
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26
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27 #include "ops.h"
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28 #include "errwarn.h"
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29 #include "xpow.h"
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30 #include SINCLUDE
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31 #include MINCLUDE
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32
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33 // matrix by diag matrix ops.
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34
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35 #if ! defined (SCALARV)
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36 # define SCALARV SCALAR
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37 #endif
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38
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39 #if ! defined (MATRIXV)
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40 # define MATRIXV MATRIX
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41 #endif
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42
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43 DEFNDBINOP_OP (sdmmul, SCALAR, MATRIX, SCALARV, MATRIXV, *)
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44 DEFNDBINOP_OP (dmsmul, MATRIX, SCALAR, MATRIXV, SCALARV, *)
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45
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46 #define OCTAVE_MATRIX CONCAT2(octave_, MATRIX)
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47 #define OCTAVE_SCALAR CONCAT2(octave_, SCALAR)
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48 #define MATRIX_VALUE CONCAT2(MATRIXV, _value)
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49 #define SCALAR_VALUE CONCAT2(SCALARV, _value)
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50
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51 template <typename T>
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52 static T
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53 gripe_if_zero (T x)
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54 {
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55 if (x == T ())
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56 warn_divide_by_zero ();
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57
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58 return x;
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59 }
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60
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61 DEFBINOP (dmsdiv, MATRIX, SCALAR)
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62 {
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63 const OCTAVE_MATRIX& v1 = dynamic_cast<const OCTAVE_MATRIX&> (a1);
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64 const OCTAVE_SCALAR& v2 = dynamic_cast<const OCTAVE_SCALAR&> (a2);
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65
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66 return v1.MATRIX_VALUE () / gripe_if_zero (v2.SCALAR_VALUE ());
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67 }
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68
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69 DEFBINOP (sdmldiv, SCALAR, MATRIX)
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70 {
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71 const OCTAVE_SCALAR& v1 = dynamic_cast<const OCTAVE_SCALAR&> (a1);
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72 const OCTAVE_MATRIX& v2 = dynamic_cast<const OCTAVE_MATRIX&> (a2);
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73
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74 return v2.MATRIX_VALUE () / gripe_if_zero (v1.SCALAR_VALUE ());
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75 }
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76
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77 DEFBINOP (dmspow, MATRIX, SCALAR)
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78 {
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79 const OCTAVE_MATRIX& v1 = dynamic_cast<const OCTAVE_MATRIX&> (a1);
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80 const OCTAVE_SCALAR& v2 = dynamic_cast<const OCTAVE_SCALAR&> (a2);
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81
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82 return xpow (v1.MATRIX_VALUE (), v2.SCALAR_VALUE ());
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83 }
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84
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85 #define SHORT_NAME CONCAT3(MSHORT, _, SSHORT)
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86 #define INST_NAME CONCAT3(install_, SHORT_NAME, _ops)
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87
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88 void
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89 INST_NAME (void)
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90 {
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91 INSTALL_BINOP (op_mul, OCTAVE_MATRIX, OCTAVE_SCALAR, dmsmul);
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92 INSTALL_BINOP (op_div, OCTAVE_MATRIX, OCTAVE_SCALAR, dmsdiv);
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93 INSTALL_BINOP (op_mul, OCTAVE_SCALAR, OCTAVE_MATRIX, sdmmul);
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94 INSTALL_BINOP (op_ldiv, OCTAVE_SCALAR, OCTAVE_MATRIX, sdmldiv);
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95 INSTALL_BINOP (op_pow, OCTAVE_MATRIX, OCTAVE_SCALAR, dmspow);
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96 }