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1 /* |
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2 |
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3 Copyright (C) 1996 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 "lo-ieee.h" |
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32 #include "lo-utils.h" |
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33 |
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34 #include "gripes.h" |
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35 #include "ops.h" |
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36 #include "ov-range.h" |
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37 #include "ov-re-mat.h" |
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38 #include "ov-scalar.h" |
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39 #include "pr-output.h" |
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40 |
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41 int octave_range::t_id = -1; |
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42 |
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43 const string octave_range::t_name ("range"); |
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44 |
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45 static octave_value * |
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46 default_numeric_conversion_function (const octave_value& a) |
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47 { |
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48 CAST_CONV_ARG (const octave_range&); |
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49 |
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50 return new octave_matrix (v.matrix_value ()); |
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51 } |
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52 |
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53 type_conv_fcn |
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54 octave_range::numeric_conversion_function (void) const |
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55 { |
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56 return default_numeric_conversion_function; |
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57 } |
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58 |
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59 octave_value * |
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60 octave_range::try_narrowing_conversion (void) |
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61 { |
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62 octave_value *retval = 0; |
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63 |
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64 switch (range.nelem ()) |
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65 { |
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66 case 1: |
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67 retval = new octave_scalar (range.base ()); |
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68 break; |
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69 |
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70 case 0: |
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71 retval = new octave_matrix (Matrix ()); |
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72 break; |
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73 |
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74 default: |
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75 break; |
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76 } |
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77 |
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78 return retval; |
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79 } |
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80 |
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81 double |
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82 octave_range::double_value (bool) const |
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83 { |
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84 double retval = octave_NaN; |
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85 |
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86 int nel = range.nelem (); |
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87 |
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88 if (nel == 1 || (nel > 1 && Vdo_fortran_indexing)) |
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89 retval = range.base (); |
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90 else |
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91 gripe_invalid_conversion ("range", "real scalar"); |
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92 |
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93 return retval; |
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94 } |
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95 |
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96 octave_value |
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97 octave_range::all (void) const |
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98 { |
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99 octave_value retval; |
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100 error ("octave_range::all(): not implemented"); |
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101 return retval; |
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102 } |
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103 |
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104 octave_value |
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105 octave_range::any (void) const |
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106 { |
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107 octave_value retval; |
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108 error ("octave_range::any(): not implemented"); |
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109 return retval; |
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110 } |
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111 |
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112 bool |
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113 octave_range::is_true (void) const |
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114 { |
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115 bool retval = false; |
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116 error ("octave_range::is_true(): not implemented"); |
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117 return retval; |
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118 } |
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119 |
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120 Complex |
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121 octave_range::complex_value (bool) const |
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122 { |
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123 Complex retval (octave_NaN, octave_NaN); |
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124 |
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125 int nel = range.nelem (); |
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126 |
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127 if (nel == 1 || (nel > 1 && Vdo_fortran_indexing)) |
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128 retval = range.base (); |
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129 else |
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130 gripe_invalid_conversion ("range", "complex scalar"); |
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131 |
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132 return retval; |
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133 } |
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134 |
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135 octave_value |
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136 octave_range::transpose (void) const |
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137 { |
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138 Matrix tmp (matrix_value ()); |
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139 return tmp.transpose (); |
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140 } |
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141 |
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142 octave_value |
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143 octave_range::hermitian (void) const |
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144 { |
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145 Matrix tmp (matrix_value ()); |
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146 return tmp.transpose (); |
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147 } |
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148 |
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149 void |
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150 octave_range::print (ostream& os) |
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151 { |
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152 octave_print_internal (os, range, false, struct_indent); |
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153 } |
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154 |
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155 /* |
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156 ;;; Local Variables: *** |
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157 ;;; mode: C++ *** |
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158 ;;; End: *** |
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159 */ |
