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annotate src/oct-map.h @ 10764:e141bcb1befd

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implement map concat optimizations for [] operator
author Jaroslav Hajek <highegg@gmail.com>
date Fri, 02 Jul 2010 10:10:51 +0200
parents 12dfe91e9fab
children f0304c545588
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1 /*
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2
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3 Copyright (C) 1994, 1995, 1996, 1997, 2000, 2002, 2003, 2004, 2005,
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John W. Eaton <jwe@octave.org>
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4 2006, 2007, 2009 John W. Eaton
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5 Copyright (C) 2010 VZLU Prague
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6
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7 This file is part of Octave.
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8
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9 Octave is free software; you can redistribute it and/or modify it
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10 under the terms of the GNU General Public License as published by the
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11 Free Software Foundation; either version 3 of the License, or (at your
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12 option) any later version.
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13
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14 Octave is distributed in the hope that it will be useful, but WITHOUT
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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17 for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with Octave; see the file COPYING. If not, see
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21 <http://www.gnu.org/licenses/>.
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22
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23 */
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24
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25 #if !defined (octave_oct_map_h)
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26 #define octave_oct_map_h 1
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27
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28 #include <algorithm>
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29 #include <map>
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30
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31 #include "Cell.h"
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32 #include "oct-obj.h"
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33
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34 class string_vector;
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35
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36 // A class holding a map field->index. Supports reference-counting.
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37 class OCTINTERP_API
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38 octave_fields
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39 {
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40 class fields_rep : public std::map<std::string, octave_idx_type>
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41 {
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42 public:
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43 fields_rep (void) : std::map<std::string, octave_idx_type> (), count (1) { }
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44 fields_rep (const fields_rep& other)
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45 : std::map<std::string, octave_idx_type> (other), count (1) { }
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46
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47 int count;
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48
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49 private:
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50 fields_rep& operator = (const fields_rep&); // no assignment!
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51 };
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52
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53 fields_rep *rep;
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54
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55 static fields_rep nil_rep;
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56
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57 public:
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58
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59 octave_fields (void) : rep (&nil_rep) { rep->count++; }
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60 octave_fields (const string_vector&);
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61
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62 ~octave_fields (void)
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63 {
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64 if (--rep->count == 0)
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65 delete rep;
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66 }
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67
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68 void make_unique (void)
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69 {
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70 if (rep->count > 1)
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71 {
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72 --rep->count;
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73 rep = new fields_rep (*rep);
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74 }
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75 }
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76
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77 octave_fields (const octave_fields& o) : rep (o.rep) { rep->count++; }
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78
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79 octave_fields&
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80 operator = (const octave_fields& o)
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81 {
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82 o.rep->count++;
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83 if (--rep->count == 0)
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84 delete rep;
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85 rep = o.rep;
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86
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87 return *this;
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88 }
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89
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90 // constant iteration support. non-const iteration intentionally unsupported.
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91
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92 typedef std::map<std::string, octave_idx_type>::const_iterator const_iterator;
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93 typedef const_iterator iterator;
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94
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95 const_iterator begin (void) const { return rep->begin (); }
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96 const_iterator end (void) const { return rep->end (); }
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97
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98 std::string key (const_iterator p) const { return p->first; }
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99 octave_idx_type index (const_iterator p) const { return p->second; }
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100
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101 const_iterator seek (const std::string& k) const
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102 { return rep->find (k); }
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103
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104 // high-level methods.
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105
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106 // number of fields.
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107 octave_idx_type nfields (void) const { return rep->size (); }
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108
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109 // check whether a field exists.
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110 bool isfield (const std::string& name) const;
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111
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112 // get index of field. return -1 if not exist
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113 octave_idx_type getfield (const std::string& name) const;
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114 // get index of field. add if not exist
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115 octave_idx_type getfield (const std::string& name);
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116 // remove field and return the index. -1 if didn't exist.
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117 octave_idx_type rmfield (const std::string& name);
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118
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119 // order the fields of this map. creates a permutation
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120 // used to order the fields.
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121 void orderfields (Array<octave_idx_type>& perm);
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122
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123 // compares two instances for equality up to order of fields.
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124 // returns a permutation needed to bring the fields of *other*
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125 // into the order of *this*.
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126 bool equal_up_to_order (const octave_fields& other,
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127 octave_idx_type* perm) const;
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128
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129 bool equal_up_to_order (const octave_fields& other,
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130 Array<octave_idx_type>& perm) const;
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131
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132 bool is_same (const octave_fields& other) const
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133 { return rep == other.rep; }
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134
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135 // Returns the fields as a vector of strings.
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136 string_vector fieldnames (void) const;
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137
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138 void clear (void)
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139 {
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140 *this = octave_fields ();
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141 }
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142 };
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143
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144
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145 class OCTINTERP_API
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146 octave_scalar_map
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147 {
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148 octave_scalar_map (const octave_fields& k)
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149 : xkeys (k), xvals (k.nfields ()) { }
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150
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151 public:
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152
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153 octave_scalar_map (void) : xkeys (), xvals () { }
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154
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155 octave_scalar_map (const string_vector& k)
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156 : xkeys (k), xvals (k.length ()) { }
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157
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158 octave_scalar_map (const octave_scalar_map& m)
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159 : xkeys (m.xkeys), xvals(m.xvals) { }
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160
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161 octave_scalar_map& operator = (const octave_scalar_map& m)
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162 {
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163 xkeys = m.xkeys;
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164 xvals = m.xvals;
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165
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166 return *this;
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167 }
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168
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169 // iteration support. note that both const and non-const iterators are the
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170 // same. The const/non-const distinction is made by the key & contents method.
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171 typedef octave_fields::const_iterator const_iterator;
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172 typedef const_iterator iterator;
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173
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174 const_iterator begin (void) const { return xkeys.begin (); }
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175 const_iterator end (void) const { return xkeys.end (); }
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176
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177 const_iterator seek (const std::string& k) const { return xkeys.seek (k); }
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178
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179 std::string key (const_iterator p) const
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180 { return xkeys.key (p); }
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181 octave_idx_type index (const_iterator p) const
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182 { return xkeys.index (p); }
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183
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184 const octave_value& contents (const_iterator p) const
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185 { return xvals[xkeys.index (p)]; }
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186
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187 octave_value& contents (iterator p)
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188 { return xvals[xkeys.index (p)]; }
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189
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190 const octave_value& contents (octave_idx_type i) const
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191 { return xvals[i]; }
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192
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193 octave_value& contents (octave_idx_type i)
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194 { return xvals[i]; }
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195
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196 // number of fields.
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197 octave_idx_type nfields (void) const { return xkeys.nfields (); }
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198
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199 // check whether a field exists.
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200 bool isfield (const std::string& name) const
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201 { return xkeys.isfield (name); }
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202
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203 bool contains (const std::string& name) const
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204 { return isfield (name); }
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205
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206 string_vector fieldnames (void) const
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207 { return xkeys.fieldnames (); }
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208
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209 string_vector keys (void) const
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210 { return fieldnames (); }
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211
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212 // get contents of a given field. empty value if not exist.
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213 octave_value getfield (const std::string& key) const;
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214
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215 // set contents of a given field. add if not exist.
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216 void setfield (const std::string& key, const octave_value& val);
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217 void assign (const std::string& k, const octave_value& val)
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218 { setfield (k, val); }
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219
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220 // remove a given field. do nothing if not exist.
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221 void rmfield (const std::string& key);
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222 void del (const std::string& k) { rmfield (k); }
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223
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224 // return a copy with fields ordered, optionally along with permutation.
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225 octave_scalar_map orderfields (void) const;
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226 octave_scalar_map orderfields (Array<octave_idx_type>& perm) const;
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227 octave_scalar_map orderfields (const octave_scalar_map& other,
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228 Array<octave_idx_type>& perm) const;
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229
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230 // aka getfield/setfield, but the latter returns a reference.
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231 octave_value contents (const std::string& k) const;
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232 octave_value& contents (const std::string& k);
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233
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234 void clear (void)
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235 {
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236 xkeys.clear ();
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237 xvals.clear ();
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238 }
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239
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240 friend class octave_map;
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241
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242 private:
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243
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244 octave_fields xkeys;
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245 std::vector<octave_value> xvals;
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246
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247 };
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248
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249 template<>
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250 inline octave_scalar_map octave_value_extract<octave_scalar_map> (const octave_value& v)
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251 { return v.scalar_map_value (); }
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252
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253 class OCTINTERP_API
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254 octave_map
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255 {
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256 octave_map (const octave_fields& k)
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257 : xkeys (k), xvals (k.nfields ()), dimensions () { }
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258
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259 octave_map (const dim_vector& dv, const octave_fields& k)
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260 : xkeys (k), xvals (k.nfields (), Cell (dv)), dimensions (dv) { }
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261
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262 public:
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263
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264 typedef octave_scalar_map element_type;
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265
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266 octave_map (void) : xkeys (), xvals (), dimensions () { }
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267
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268 octave_map (const dim_vector& dv) : xkeys (), xvals (), dimensions (dv) { }
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269
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270 octave_map (const string_vector& k)
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271 : xkeys (k), xvals (k.length ()), dimensions (1, 1) { }
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272
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273 octave_map (const dim_vector& dv, const string_vector& k)
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274 : xkeys (k), xvals (k.length (), Cell (dv)), dimensions (dv) { }
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275
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276 octave_map (const octave_map& m)
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277 : xkeys (m.xkeys), xvals (m.xvals), dimensions (m.dimensions) { }
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278
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279 octave_map (const octave_scalar_map& m);
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280
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281 octave_map (const Octave_map& m);
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282
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283 octave_map& operator = (const octave_map& m)
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284 {
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285 xkeys = m.xkeys;
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286 xvals = m.xvals;
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287 dimensions = m.dimensions;
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288
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289 return *this;
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290 }
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291
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292 // iteration support. note that both const and non-const iterators are the
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293 // same. The const/non-const distinction is made by the key & contents method.
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294 typedef octave_fields::const_iterator const_iterator;
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295 typedef const_iterator iterator;
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296
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297 const_iterator begin (void) const { return xkeys.begin (); }
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298 const_iterator end (void) const { return xkeys.end (); }
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299
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300 const_iterator seek (const std::string& k) const { return xkeys.seek (k); }
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301
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302 std::string key (const_iterator p) const
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303 { return xkeys.key (p); }
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304 octave_idx_type index (const_iterator p) const
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305 { return xkeys.index (p); }
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306
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307 const Cell& contents (const_iterator p) const
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308 { return xvals[xkeys.index (p)]; }
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309
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310 Cell& contents (iterator p)
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311 { return xvals[xkeys.index (p)]; }
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312
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313 const Cell& contents (octave_idx_type i) const
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314 { return xvals[i]; }
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315
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316 Cell& contents (octave_idx_type i)
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317 { return xvals[i]; }
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318
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319 // number of fields.
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320 octave_idx_type nfields (void) const { return xkeys.nfields (); }
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321
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322 // check whether a field exists.
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323 bool isfield (const std::string& name) const
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324 { return xkeys.isfield (name); }
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325
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326 bool contains (const std::string& name) const
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327 { return isfield (name); }
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328
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329 string_vector fieldnames (void) const
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330 { return xkeys.fieldnames (); }
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331
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332 string_vector keys (void) const
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333 { return fieldnames (); }
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334
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335 // get contents of a given field. empty value if not exist.
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336 Cell getfield (const std::string& key) const;
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337
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338 // set contents of a given field. add if not exist. checks for
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339 // correct dimensions.
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340 void setfield (const std::string& key, const Cell& val);
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341 void assign (const std::string& k, const Cell& val)
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342 { setfield (k, val); }
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343
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344 // remove a given field. do nothing if not exist.
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345 void rmfield (const std::string& key);
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346 void del (const std::string& k) { rmfield (k); }
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347
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348 // return a copy with fields ordered, optionally along with permutation.
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349 octave_map orderfields (void) const;
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350 octave_map orderfields (Array<octave_idx_type>& perm) const;
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351 octave_map orderfields (const octave_map& other,
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352 Array<octave_idx_type>& perm) const;
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353
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354 // aka getfield/setfield, but the latter returns a reference.
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355 Cell contents (const std::string& k) const;
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356 Cell& contents (const std::string& k);
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357
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358 void clear (void)
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359 {
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360 xkeys.clear ();
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361 xvals.clear ();
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362 }
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363
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364 // The Array-like methods.
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365 octave_idx_type numel (void) const { return dimensions.numel (); }
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366 octave_idx_type length (void) const { return numel (); }
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367 bool is_empty (void) const { return dimensions.any_zero (); }
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368
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369 octave_idx_type rows (void) const { return dimensions(0); }
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370 octave_idx_type cols (void) const { return dimensions(1); }
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371 octave_idx_type columns (void) const { return dimensions(1); }
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372
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373 // Extract a scalar substructure.
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374 octave_scalar_map checkelem (octave_idx_type n) const;
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375 octave_scalar_map checkelem (octave_idx_type i, octave_idx_type j) const;
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376
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377 octave_scalar_map
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378 checkelem (const Array<octave_idx_type>& ra_idx) const;
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379
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380 octave_scalar_map operator () (octave_idx_type n) const
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381 { return checkelem (n); }
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382 octave_scalar_map operator () (octave_idx_type i, octave_idx_type j) const
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383 { return checkelem (i, j); }
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384
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385 octave_scalar_map
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386 operator () (const Array<octave_idx_type>& ra_idx) const
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387 { return checkelem (ra_idx); }
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388
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389 octave_map squeeze (void) const;
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390
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391 octave_map permute (const Array<int>& vec, bool inv = false) const;
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392
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393 dim_vector dims (void) const { return dimensions; }
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394
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395 int ndims (void) const { return dimensions.length (); }
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396
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397 octave_map transpose (void) const;
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398
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399 octave_map reshape (const dim_vector& dv) const;
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400
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401 void resize (const dim_vector& dv, bool fill = false);
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402
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403 static octave_map
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404 cat (int dim, octave_idx_type n, const octave_scalar_map *map_list);
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405
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406 static octave_map
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407 cat (int dim, octave_idx_type n, const octave_map *map_list);
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408
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409 octave_map index (const idx_vector& i, bool resize_ok = false) const;
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410
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411 octave_map index (const idx_vector& i, const idx_vector& j,
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412 bool resize_ok = false) const;
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413
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414 octave_map index (const Array<idx_vector>& ia,
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415 bool resize_ok = false) const;
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416
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417 octave_map index (const octave_value_list&, bool resize_ok = false) const;
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418
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419 octave_map column (octave_idx_type k) const;
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420 octave_map page (octave_idx_type k) const;
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421
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422 void assign (const idx_vector& i, const octave_map& rhs);
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423
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424 void assign (const idx_vector& i, const idx_vector& j, const octave_map& rhs);
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425
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426 void assign (const Array<idx_vector>& ia, const octave_map& rhs);
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427
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428 void assign (const octave_value_list&, const octave_map& rhs);
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429
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430 void assign (const octave_value_list& idx, const std::string& k,
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431 const Cell& rhs);
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432
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433 void delete_elements (const idx_vector& i);
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diff changeset
434
604e13a89c7f initial code for structs rewrite
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diff changeset
435 void delete_elements (int dim, const idx_vector& i);
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diff changeset
436
604e13a89c7f initial code for structs rewrite
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diff changeset
437 void delete_elements (const Array<idx_vector>& ia);
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diff changeset
438
604e13a89c7f initial code for structs rewrite
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diff changeset
439 void delete_elements (const octave_value_list&);
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parents: 10333
diff changeset
440
604e13a89c7f initial code for structs rewrite
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parents: 10333
diff changeset
441 octave_map concat (const octave_map& rb, const Array<octave_idx_type>& ra_idx);
604e13a89c7f initial code for structs rewrite
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parents: 10333
diff changeset
442
10760
76079e505f9d optimize cellfun with uniform struct output
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diff changeset
443 // like checkelem, but no check.
76079e505f9d optimize cellfun with uniform struct output
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diff changeset
444 octave_scalar_map fast_elem_extract (octave_idx_type n) const;
76079e505f9d optimize cellfun with uniform struct output
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parents: 10757
diff changeset
445
76079e505f9d optimize cellfun with uniform struct output
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parents: 10757
diff changeset
446 // element assignment, no bounds check
76079e505f9d optimize cellfun with uniform struct output
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parents: 10757
diff changeset
447 bool fast_elem_insert (octave_idx_type n, const octave_scalar_map& rhs);
76079e505f9d optimize cellfun with uniform struct output
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diff changeset
448
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449 private:
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diff changeset
450
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diff changeset
451 octave_fields xkeys;
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diff changeset
452 std::vector<Cell> xvals;
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diff changeset
453 dim_vector dimensions;
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454
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diff changeset
455 void optimize_dimensions (void);
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diff changeset
456 void extract_scalar (octave_scalar_map& dest,
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457 octave_idx_type index) const;
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diff changeset
458 static void do_cat (int dim, octave_idx_type n,
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diff changeset
459 const octave_scalar_map *map_list, octave_map& retval);
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diff changeset
460 static void do_cat (int dim, octave_idx_type n,
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diff changeset
461 const octave_map *map_list, octave_map& retval);
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462 };
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diff changeset
463
10757
1cc44f3ec814 templated extractors for maps and cells
Jaroslav Hajek <highegg@gmail.com>
parents: 10756
diff changeset
464 template<>
1cc44f3ec814 templated extractors for maps and cells
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diff changeset
465 inline octave_map octave_value_extract<octave_map> (const octave_value& v)
1cc44f3ec814 templated extractors for maps and cells
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parents: 10756
diff changeset
466 { return v.map_value (); }
1cc44f3ec814 templated extractors for maps and cells
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diff changeset
467
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diff changeset
468 // The original Octave_map object. Octave_map and octave_map are convertible to
604e13a89c7f initial code for structs rewrite
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diff changeset
469 // each other.
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diff changeset
470
746
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diff changeset
471 class
6109
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diff changeset
472 OCTINTERP_API
3931
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diff changeset
473 Octave_map
746
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diff changeset
474 {
46f6f6a4f5c6 [project @ 1994-09-30 15:05:10 by jwe]
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diff changeset
475 public:
4219
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diff changeset
476
4513
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diff changeset
477 typedef std::map<std::string, Cell>::iterator iterator;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
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diff changeset
478 typedef std::map<std::string, Cell>::const_iterator const_iterator;
4219
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diff changeset
479
5880
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diff changeset
480 typedef std::list<std::string>::iterator key_list_iterator;
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
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diff changeset
481 typedef std::list<std::string>::const_iterator const_key_list_iterator;
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
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diff changeset
482
4744
7dcb696159ac [project @ 2004-02-06 05:46:22 by jwe]
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diff changeset
483 // Warning! You should always use at least two dimensions.
7dcb696159ac [project @ 2004-02-06 05:46:22 by jwe]
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diff changeset
484
5880
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diff changeset
485 Octave_map (const dim_vector& dv = dim_vector (0, 0),
10313
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
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diff changeset
486 const Cell& key_vals = Cell ());
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diff changeset
487
4587
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diff changeset
488 Octave_map (const std::string& k, const octave_value& value)
5880
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
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diff changeset
489 : map (), key_list (), dimensions (1, 1)
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
jwe
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diff changeset
490 {
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
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diff changeset
491 map[k] = value;
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
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diff changeset
492 key_list.push_back (k);
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
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diff changeset
493 }
4513
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diff changeset
494
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Søren Hauberg <soren@hauberg.org>
parents: 10313
diff changeset
495 Octave_map (const string_vector& sv,
0c42b6b7da24 imfinfo: support image files with multiple frames
Søren Hauberg <soren@hauberg.org>
parents: 10313
diff changeset
496 const dim_vector& dv = dim_vector (0, 0))
0c42b6b7da24 imfinfo: support image files with multiple frames
Søren Hauberg <soren@hauberg.org>
parents: 10313
diff changeset
497 : map (), key_list (), dimensions (dv)
8785
70f5a0375afd oct-map.h: fix think-o in previous change
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diff changeset
498 {
70f5a0375afd oct-map.h: fix think-o in previous change
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diff changeset
499 for (octave_idx_type i = 0; i < sv.length (); i++)
70f5a0375afd oct-map.h: fix think-o in previous change
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diff changeset
500 {
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f3b65e1ae355 untabify src header files
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diff changeset
501 std::string k = sv[i];
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diff changeset
502 map[k] = Cell (dv);
10313
f3b65e1ae355 untabify src header files
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diff changeset
503 key_list.push_back (k);
8785
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diff changeset
504 }
70f5a0375afd oct-map.h: fix think-o in previous change
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diff changeset
505 }
70f5a0375afd oct-map.h: fix think-o in previous change
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parents: 8679
diff changeset
506
4587
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diff changeset
507 Octave_map (const std::string& k, const Cell& vals)
5880
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diff changeset
508 : map (), key_list (), dimensions (vals.dims ())
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
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diff changeset
509 {
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
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diff changeset
510 map[k] = vals;
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
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diff changeset
511 key_list.push_back (k);
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diff changeset
512 }
746
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diff changeset
513
4587
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diff changeset
514 Octave_map (const std::string& k, const octave_value_list& val_list)
5880
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jwe
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diff changeset
515 : map (), key_list (), dimensions (1, val_list.length ())
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
jwe
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diff changeset
516 {
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jwe
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diff changeset
517 map[k] = val_list;
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
jwe
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diff changeset
518 key_list.push_back (k);
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
jwe
parents: 5781
diff changeset
519 }
4435
dd7af4fa1942 [project @ 2003-06-23 17:52:36 by jwe]
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diff changeset
520
5880
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diff changeset
521 Octave_map (const Octave_map& m)
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
jwe
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diff changeset
522 : map (m.map), key_list (m.key_list), dimensions (m.dimensions) { }
3931
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diff changeset
523
10742
604e13a89c7f initial code for structs rewrite
Jaroslav Hajek <highegg@gmail.com>
parents: 10333
diff changeset
524 Octave_map (const octave_map& m);
604e13a89c7f initial code for structs rewrite
Jaroslav Hajek <highegg@gmail.com>
parents: 10333
diff changeset
525
3931
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jwe
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diff changeset
526 Octave_map& operator = (const Octave_map& m)
311981a9726d [project @ 2002-05-07 04:49:53 by jwe]
jwe
parents: 3523
diff changeset
527 {
311981a9726d [project @ 2002-05-07 04:49:53 by jwe]
jwe
parents: 3523
diff changeset
528 if (this != &m)
10313
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
529 {
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
530 map = m.map;
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
531 key_list = m.key_list;
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
532 dimensions = m.dimensions;
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
533 }
4561
e84592dc70b9 [project @ 2003-10-28 21:07:59 by jwe]
jwe
parents: 4513
diff changeset
534
3931
311981a9726d [project @ 2002-05-07 04:49:53 by jwe]
jwe
parents: 3523
diff changeset
535 return *this;
311981a9726d [project @ 2002-05-07 04:49:53 by jwe]
jwe
parents: 3523
diff changeset
536 }
746
46f6f6a4f5c6 [project @ 1994-09-30 15:05:10 by jwe]
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diff changeset
537
46f6f6a4f5c6 [project @ 1994-09-30 15:05:10 by jwe]
jwe
parents:
diff changeset
538 ~Octave_map (void) { }
1279
f146197d9d37 [project @ 1995-04-26 17:41:20 by jwe]
jwe
parents: 1009
diff changeset
539
7046
fbf8576cf399 [project @ 2007-10-22 12:12:20 by dbateman]
dbateman
parents: 7017
diff changeset
540 Octave_map squeeze (void) const;
fbf8576cf399 [project @ 2007-10-22 12:12:20 by dbateman]
dbateman
parents: 7017
diff changeset
541
fbf8576cf399 [project @ 2007-10-22 12:12:20 by dbateman]
dbateman
parents: 7017
diff changeset
542 Octave_map permute (const Array<int>& vec, bool inv = false) const;
fbf8576cf399 [project @ 2007-10-22 12:12:20 by dbateman]
dbateman
parents: 7017
diff changeset
543
3932
2e2e32198722 [project @ 2002-05-07 18:10:44 by jwe]
jwe
parents: 3931
diff changeset
544 // This is the number of keys.
6639
ed74670db09b [project @ 2007-05-21 19:47:22 by jwe]
jwe
parents: 6109
diff changeset
545 octave_idx_type nfields (void) const { return map.size (); }
3931
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parents: 3523
diff changeset
546
4587
7b957b442818 [project @ 2003-11-10 15:50:39 by jwe]
jwe
parents: 4567
diff changeset
547 void del (const std::string& k)
4219
23d06c9e1edd [project @ 2002-12-06 21:29:17 by jwe]
jwe
parents: 4200
diff changeset
548 {
4587
7b957b442818 [project @ 2003-11-10 15:50:39 by jwe]
jwe
parents: 4567
diff changeset
549 iterator p = map.find (k);
5881
70b3f8f1a793 [project @ 2006-07-08 03:54:17 by jwe]
jwe
parents: 5880
diff changeset
550
4219
23d06c9e1edd [project @ 2002-12-06 21:29:17 by jwe]
jwe
parents: 4200
diff changeset
551 if (p != map.end ())
10313
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
552 {
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
553 map.erase (p);
5880
84ca47e311b3 [project @ 2006-07-06 22:34:48 by jwe]
jwe
parents: 5781
diff changeset
554
10313
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
555 key_list_iterator q
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
556 = std::find (key_list.begin (), key_list.end (), k);
5881
70b3f8f1a793 [project @ 2006-07-08 03:54:17 by jwe]
jwe
parents: 5880
diff changeset
557
10313
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
558 assert (q != key_list.end ());
5881
70b3f8f1a793 [project @ 2006-07-08 03:54:17 by jwe]
jwe
parents: 5880
diff changeset
559
10313
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
560 key_list.erase (q);
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
561 }
4219
23d06c9e1edd [project @ 2002-12-06 21:29:17 by jwe]
jwe
parents: 4200
diff changeset
562 }
3931
311981a9726d [project @ 2002-05-07 04:49:53 by jwe]
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parents: 3523
diff changeset
563
4219
23d06c9e1edd [project @ 2002-12-06 21:29:17 by jwe]
jwe
parents: 4200
diff changeset
564 iterator begin (void) { return iterator (map.begin ()); }
23d06c9e1edd [project @ 2002-12-06 21:29:17 by jwe]
jwe
parents: 4200
diff changeset
565 const_iterator begin (void) const { return const_iterator (map.begin ()); }
23d06c9e1edd [project @ 2002-12-06 21:29:17 by jwe]
jwe
parents: 4200
diff changeset
566
23d06c9e1edd [project @ 2002-12-06 21:29:17 by jwe]
jwe
parents: 4200
diff changeset
567 iterator end (void) { return iterator (map.end ()); }
23d06c9e1edd [project @ 2002-12-06 21:29:17 by jwe]
jwe
parents: 4200
diff changeset
568 const_iterator end (void) const { return const_iterator (map.end ()); }
3931
311981a9726d [project @ 2002-05-07 04:49:53 by jwe]
jwe
parents: 3523
diff changeset
569
4219
23d06c9e1edd [project @ 2002-12-06 21:29:17 by jwe]
jwe
parents: 4200
diff changeset
570 std::string key (const_iterator p) const { return p->first; }
3931
311981a9726d [project @ 2002-05-07 04:49:53 by jwe]
jwe
parents: 3523
diff changeset
571
5328
322ab0da00f8 [project @ 2005-05-02 10:48:43 by jwe]
jwe
parents: 5307
diff changeset
572 Cell& contents (const std::string& k);
4675
f6d6335c08f6 [project @ 2003-12-16 05:11:26 by jwe]
jwe
parents: 4587
diff changeset
573 Cell contents (const std::string& k) const;
3931
311981a9726d [project @ 2002-05-07 04:49:53 by jwe]
jwe
parents: 3523
diff changeset
574
9129
17a3df1d992b avoid double lookups when iterating Octave_map
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
575 Cell& contents (iterator p)
17a3df1d992b avoid double lookups when iterating Octave_map
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
576 { return p->second; }
5328
322ab0da00f8 [project @ 2005-05-02 10:48:43 by jwe]
jwe
parents: 5307
diff changeset
577
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4435
diff changeset
578 Cell contents (const_iterator p) const
9129
17a3df1d992b avoid double lookups when iterating Octave_map
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
579 { return p->second; }
3931
311981a9726d [project @ 2002-05-07 04:49:53 by jwe]
jwe
parents: 3523
diff changeset
580
5156
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581 int intfield (const std::string& k, int def_val = 0) const;
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582
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583 std::string stringfield (const std::string& k,
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584 const std::string& def_val = std::string ()) const;
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585
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586 iterator seek (const std::string& k) { return map.find (k); }
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587 const_iterator seek (const std::string& k) const { return map.find (k); }
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588
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589 bool contains (const std::string& k) const
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590 { return (seek (k) != map.end ()); }
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591
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592 void clear (void)
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593 {
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594 map.clear ();
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595 key_list.clear ();
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596 }
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597
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598 string_vector keys (void) const;
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599
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600 octave_idx_type rows (void) const { return dimensions(0); }
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601
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602 octave_idx_type columns (void) const { return dimensions(1); }
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603
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604 dim_vector dims (void) const { return dimensions; }
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605
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606 int ndims (void) const { return dimensions.length (); }
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607
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608 Octave_map transpose (void) const;
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609
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610 Octave_map reshape (const dim_vector& new_dims) const;
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611
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612 void resize (const dim_vector& dv, bool fill = false);
4936
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613
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614 octave_idx_type numel (void) const { return dimensions.numel (); }
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615
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616 Octave_map concat (const Octave_map& rb, const Array<octave_idx_type>& ra_idx);
4806
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617
5592
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618 Octave_map& maybe_delete_elements (const octave_value_list& idx);
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619
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620 Octave_map& assign (const octave_value_list& idx, const Octave_map& rhs);
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621
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622 Octave_map& assign (const octave_value_list& idx, const std::string& k,
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623 const Cell& rhs);
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624
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625 Octave_map& assign (const std::string& k, const octave_value& rhs);
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626
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627 Octave_map& assign (const std::string& k, const Cell& rhs);
3933
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628
7046
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629 Octave_map index (const octave_value_list& idx,
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630 bool resize_ok = false) const;
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631
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632 private:
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633
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634 // The map of names to values.
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635 std::map<std::string, Cell> map;
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636
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637 // An extra list of keys, so we can keep track of the order the keys
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638 // are added for compatibility with you know what.
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639 std::list<std::string> key_list;
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640
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641 // The current size.
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642 mutable dim_vector dimensions;
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643
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diff changeset
644 void maybe_add_to_key_list (const std::string& k)
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645 {
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diff changeset
646 if (! contains (k))
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647 key_list.push_back (k);
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648 }
746
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649 };
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650
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651 #endif