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another data member initialization fix
author John W. Eaton <jwe@octave.org>
date Thu, 20 Jan 2011 05:39:43 -0500
parents a83bad07f7e3
children 12df7854fa7c
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1 /*
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2
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3 Copyright (C) 1994-2011 John W. Eaton
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4 Copyright (C) 2009 VZLU Prague
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 #if !defined (octave_oct_obj_h)
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25 #define octave_oct_obj_h 1
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26
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27 #include <string>
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28 #include <vector>
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29
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30 #include "oct-alloc.h"
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31 #include "str-vec.h"
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32 #include "Array.h"
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33
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34 #include "ov.h"
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35 #include "Cell.h"
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36
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37 class
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38 OCTINTERP_API
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39 octave_value_list
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40 {
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41 public:
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42
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43 octave_value_list (void)
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44 : data (), names () { }
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45
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46 explicit octave_value_list (octave_idx_type n)
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47 : data (dim_vector (1, n)), names () { }
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48
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49 octave_value_list (octave_idx_type n, const octave_value& val)
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50 : data (dim_vector (1, n), val), names () { }
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51
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52 octave_value_list (const octave_value& tc)
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53 : data (dim_vector (1, 1), tc), names () { }
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54
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55 octave_value_list (const Array<octave_value>& d)
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56 : data (d.as_row ()), names () { }
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57
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58 octave_value_list (const Cell& tc)
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59 : data (tc.as_row ()), names () { }
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60
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61 octave_value_list (const octave_value_list& obj)
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62 : data (obj.data), names (obj.names) { }
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63
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64 // Concatenation constructor.
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65 octave_value_list (const std::list<octave_value_list>&);
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66
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67 ~octave_value_list (void) { }
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68
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69 void *operator new (size_t size)
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70 { return allocator.alloc (size); }
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71
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72 void operator delete (void *p, size_t size)
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73 { allocator.free (p, size); }
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74
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75 // FIXME -- without this, I have errors with the stack of
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76 // octave_value_list objects in ov-usr-fcn.h. Why?
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77 void *operator new (size_t size, void *p)
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78 { return ::operator new (size, p); }
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79
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80 void operator delete (void *p, void *)
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81 {
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82 #if defined (HAVE_PLACEMENT_DELETE)
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83 ::operator delete (p, static_cast<void *> (0));
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84 #else
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85 ::operator delete (p);
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86 #endif
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87 }
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88
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89 octave_value_list& operator = (const octave_value_list& obj)
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90 {
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91 if (this != &obj)
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92 {
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93 data = obj.data;
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94 names = obj.names;
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95 }
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97 return *this;
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98 }
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99
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100 Array<octave_value> array_value (void) const { return data; }
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101
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102 Cell cell_value (void) const { return array_value (); }
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103
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104 // Assignment will resize on range errors.
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105
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106 octave_value& operator () (octave_idx_type n) { return elem (n); }
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107
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108 const octave_value& operator () (octave_idx_type n) const { return elem (n); }
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109
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110 octave_idx_type length (void) const { return data.length (); }
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111
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112 bool empty (void) const { return length () == 0; }
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113
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114 void resize (octave_idx_type n, const octave_value& rfv
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115 = Array<octave_value>::resize_fill_value ())
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116 {
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117 data.resize (dim_vector (1, n), rfv);
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118 }
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119
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120 octave_value_list& prepend (const octave_value& val);
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121
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122 octave_value_list& append (const octave_value& val);
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123
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124 octave_value_list& append (const octave_value_list& lst);
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125
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126 octave_value_list& reverse (void);
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127
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128 octave_value_list
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129 slice (octave_idx_type offset, octave_idx_type len, bool tags = false) const
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130 {
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131 octave_value_list retval (data.linear_slice (offset, offset + len));
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132 if (tags && len > 0 && names.length () > 0)
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133 retval.names = names.linear_slice (offset, std::min (len, names.length ()));
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134
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135 return retval;
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136 }
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137
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138 octave_value_list
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139 splice (octave_idx_type offset, octave_idx_type len,
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140 const octave_value_list& lst = octave_value_list ()) const;
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141
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142 bool all_strings_p (void) const;
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143
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144 bool all_scalars (void) const;
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145
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146 bool any_cell (void) const;
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147
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148 bool has_magic_colon (void) const;
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149
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150 string_vector make_argv (const std::string& = std::string()) const;
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151
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152 void stash_name_tags (const string_vector& nm) { names = nm; }
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153
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154 string_vector name_tags (void) const { return names; }
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155
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156 void make_storable_values (void);
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157
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158 octave_value& xelem (octave_idx_type i)
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159 {
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160 return data.xelem (i);
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161 }
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162
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163 void clear (void)
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164 {
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165 data.clear ();
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166 }
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167
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168 private:
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169
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170 static octave_allocator allocator;
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171
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172 Array<octave_value> data;
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173
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174 // This list of strings can be used to tag each element of data with
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175 // a name. By default, it is empty.
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176 string_vector names;
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177
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178 octave_value& elem (octave_idx_type n)
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179 {
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180 if (n >= length ())
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181 resize (n + 1);
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182
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183 return data(n);
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184 }
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185
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186 const octave_value& elem (octave_idx_type n) const
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187 { return data(n); }
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188 };
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189
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190 #endif