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annotate src/ov-base-scalar.cc @ 12385:c468c5b902b3 release-3-4-x ss-3-3-92

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version is now 3.3.92
author John W. Eaton <jwe@octave.org>
date Sun, 06 Feb 2011 06:27:19 -0500
parents 12df7854fa7c
children 72c96de7a403
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1 /*
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2
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3 Copyright (C) 1996-2011 John W. Eaton
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4
9a1ac83591c0 [project @ 1999-10-12 06:03:19 by jwe]
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5 This file is part of Octave.
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6
9a1ac83591c0 [project @ 1999-10-12 06:03:19 by jwe]
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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
9a1ac83591c0 [project @ 1999-10-12 06:03:19 by jwe]
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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
9a1ac83591c0 [project @ 1999-10-12 06:03:19 by jwe]
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23 #ifdef 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 <iostream>
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28
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29 #include "oct-obj.h"
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30 #include "ov-base.h"
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31 #include "ov-cx-mat.h"
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32 #include "ov-re-mat.h"
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33 #include "ov-base-scalar.h"
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34 #include "pr-output.h"
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35
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36 template <class ST>
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37 octave_value
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38 octave_base_scalar<ST>::subsref (const std::string& type,
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39 const std::list<octave_value_list>& idx)
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40 {
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41 octave_value retval;
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42
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43 switch (type[0])
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44 {
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45 case '(':
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46 retval = do_index_op (idx.front ());
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47 break;
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48
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49 case '{':
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50 case '.':
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51 {
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52 std::string nm = type_name ();
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53 error ("%s cannot be indexed with %c", nm.c_str (), type[0]);
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54 }
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55 break;
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56
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57 default:
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58 panic_impossible ();
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59 }
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60
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61 return retval.next_subsref (type, idx);
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62 }
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63
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64 template <class ST>
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65 octave_value
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66 octave_base_scalar<ST>::subsasgn (const std::string& type,
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67 const std::list<octave_value_list>& idx,
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68 const octave_value& rhs)
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69 {
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70 octave_value retval;
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71
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72 switch (type[0])
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73 {
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74 case '(':
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75 {
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76 if (type.length () == 1)
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77 retval = numeric_assign (type, idx, rhs);
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78 else
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79 {
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80 std::string nm = type_name ();
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81 error ("in indexed assignment of %s, last rhs index must be ()",
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82 nm.c_str ());
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83 }
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84 }
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85 break;
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86
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87 case '{':
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88 case '.':
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89 {
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90 std::string nm = type_name ();
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91 error ("%s cannot be indexed with %c", nm.c_str (), type[0]);
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92 }
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93 break;
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94
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95 default:
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96 panic_impossible ();
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97 }
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98
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99 return retval;
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100 }
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101
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102 template <class ST>
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103 octave_value
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104 octave_base_scalar<ST>::permute (const Array<int>& vec, bool inv) const
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105 {
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106 return Array<ST> (dim_vector (1, 1), scalar).permute (vec, inv);
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107 }
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108
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109 template <class ST>
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110 octave_value
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111 octave_base_scalar<ST>::reshape (const dim_vector& new_dims) const
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112 {
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113 return Array<ST> (dim_vector (1, 1), scalar).reshape (new_dims);
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114 }
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115
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116 template <class ST>
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117 octave_value
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118 octave_base_scalar<ST>::diag (octave_idx_type k) const
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119 {
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120 return Array<ST> (dim_vector (1, 1), scalar).diag (k);
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121 }
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122
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123 template <class ST>
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124 bool
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125 octave_base_scalar<ST>::is_true (void) const
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126 {
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127 bool retval = false;
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128
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129 if (xisnan (scalar))
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130 gripe_nan_to_logical_conversion ();
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131 else
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132 retval = (scalar != ST ());
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133
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134 return retval;
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135 }
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136
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137 template <class ST>
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138 void
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139 octave_base_scalar<ST>::print (std::ostream& os, bool pr_as_read_syntax) const
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140 {
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141 print_raw (os, pr_as_read_syntax);
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142 newline (os);
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143 }
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144
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145 template <class ST>
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146 void
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147 octave_base_scalar<ST>::print_raw (std::ostream& os,
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148 bool pr_as_read_syntax) const
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149 {
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150 indent (os);
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151 octave_print_internal (os, scalar, pr_as_read_syntax);
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152 }
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153
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154 template <class ST>
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155 bool
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156 octave_base_scalar<ST>::print_name_tag (std::ostream& os,
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157 const std::string& name) const
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158 {
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159 indent (os);
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160 os << name << " = ";
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161 return false;
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162 }
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163
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164 template <class ST>
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165 bool
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166 octave_base_scalar<ST>::fast_elem_insert_self (void *where, builtin_type_t btyp) const
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167 {
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168
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169 // Don't use builtin_type () here to avoid an extra VM call.
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170 if (btyp == class_to_btyp<ST>::btyp)
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171 {
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172 *(reinterpret_cast<ST *>(where)) = scalar;
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173 return true;
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174 }
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175 else
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176 return false;
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177 }