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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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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 2, or (at your option) any |
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10 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, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if defined (__GNUG__) |
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24 #pragma implementation |
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25 #endif |
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26 |
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27 #ifdef HAVE_CONFIG_H |
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28 #include <config.h> |
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29 #endif |
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30 |
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31 #include <iostream.h> |
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32 |
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33 #include "lo-ieee.h" |
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34 #include "mx-base.h" |
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35 |
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36 #include "ov-base.h" |
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37 #include "ov-base-mat.h" |
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38 #include "ov-base-mat.cc" |
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39 #include "ov-ch-mat.h" |
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40 #include "gripes.h" |
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41 #include "pr-output.h" |
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42 |
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43 template class octave_base_matrix<charMatrix>; |
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44 |
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45 DEFINE_OCTAVE_ALLOCATOR (octave_char_matrix); |
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46 |
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47 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_char_matrix, "char matrix"); |
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48 |
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49 bool |
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50 octave_char_matrix::valid_as_scalar_index (void) const |
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51 { |
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52 bool retval = false; |
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53 error ("octave_char_matrix::valid_as_scalar_index(): not implemented"); |
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54 return retval; |
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55 } |
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56 |
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57 bool |
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58 octave_char_matrix::valid_as_zero_index (void) const |
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59 { |
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60 bool retval = false; |
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61 error ("octave_char_matrix::valid_as_zero_index(): not implemented"); |
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62 return retval; |
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63 } |
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64 |
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65 bool |
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66 octave_char_matrix::is_true (void) const |
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67 { |
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68 bool retval = false; |
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69 |
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70 if (rows () == 0 || columns () == 0) |
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71 { |
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72 int flag = Vpropagate_empty_matrices; |
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73 |
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74 if (flag < 0) |
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75 warning ("empty matrix used in conditional expression"); |
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76 else if (flag == 0) |
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77 error ("empty matrix used in conditional expression"); |
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78 } |
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79 else |
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80 { |
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81 Matrix m = (matrix.all ()) . all (); |
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82 |
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83 retval = (m.rows () == 1 && m.columns () == 1 && m (0, 0) != 0.0); |
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84 } |
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85 |
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86 return retval; |
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87 } |
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88 |
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89 double |
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90 octave_char_matrix::double_value (bool) const |
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91 { |
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92 double retval = octave_NaN; |
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93 |
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94 if ((rows () == 1 && columns () == 1) |
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95 || (Vdo_fortran_indexing && rows () > 0 && columns () > 0)) |
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96 retval = matrix (0, 0); |
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97 else |
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98 gripe_invalid_conversion ("character matrix", "real scalar"); |
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99 |
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100 return retval; |
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101 } |
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102 |
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103 Complex |
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104 octave_char_matrix::complex_value (bool) const |
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105 { |
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106 Complex retval (octave_NaN, octave_NaN); |
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107 |
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108 if ((rows () == 1 && columns () == 1) |
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109 || (Vdo_fortran_indexing && rows () > 0 && columns () > 0)) |
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110 retval = matrix (0, 0); |
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111 else |
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112 gripe_invalid_conversion ("character matrix", "complex scalar"); |
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113 |
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114 return retval; |
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115 } |
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116 |
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117 /* |
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118 ;;; Local Variables: *** |
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119 ;;; mode: C++ *** |
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120 ;;; End: *** |
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121 */ |
