1
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1 /* |
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2 |
2847
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3 Copyright (C) 1996, 1997 John W. Eaton |
1
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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
240
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24 #ifdef HAVE_CONFIG_H |
1192
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25 #include <config.h> |
1
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26 #endif |
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27 |
1343
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28 #include <cstdlib> |
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29 |
3503
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30 #include <iostream> |
164
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31 |
1352
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32 #include "Range.h" |
4650
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33 #include "boolNDArray.h" |
1560
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34 #include "dColVector.h" |
4650
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35 #include "dNDArray.h" |
1352
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36 |
1
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37 #include "idx-vector.h" |
1560
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38 #include "lo-error.h" |
2500
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39 #include "lo-mappers.h" |
1
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40 |
1560
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41 #define IDX_VEC_REP idx_vector::idx_vector_rep |
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42 |
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43 IDX_VEC_REP::idx_vector_rep (const IDX_VEC_REP& a) |
4653
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44 : data (0), len (a.len), num_zeros (a.num_zeros), num_ones (a.num_ones), |
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45 max_val (a.max_val), min_val (a.min_val), |
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46 frozen_at_z_len (a.frozen_at_z_len), frozen_len (a.frozen_len), |
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47 colon (a.colon), one_zero (a.one_zero), initialized (a.initialized), |
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48 frozen (a.frozen), colon_equiv_checked (a.colon_equiv_checked), |
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49 colon_equiv (a.colon_equiv), orig_dims (a.orig_dims) |
1
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50 { |
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51 if (len > 0) |
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52 { |
5275
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53 data = new octave_idx_type [len]; |
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54 for (octave_idx_type i = 0; i < len; i++) |
1
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55 data[i] = a.data[i]; |
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56 } |
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57 } |
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58 |
5275
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59 octave_idx_type |
4938
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60 IDX_VEC_REP::tree_to_mat_idx (double x, bool& conversion_error) |
1
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61 { |
5275
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62 octave_idx_type retval = -1; |
4732
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63 |
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64 conversion_error = false; |
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65 |
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66 if (D_NINT (x) != x) |
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67 { |
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68 (*current_liboctave_error_handler) |
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69 ("expecting integer index, found %f", x); |
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70 |
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71 conversion_error = true; |
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72 } |
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73 else |
5275
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74 retval = static_cast<octave_idx_type> (x - 1); |
4732
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75 |
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76 return retval; |
3928
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77 } |
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78 |
2500
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79 static inline bool |
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80 idx_is_inf_or_nan (double x) |
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81 { |
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82 bool retval = false; |
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83 |
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84 if (xisnan (x)) |
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85 { |
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86 (*current_liboctave_error_handler) ("NaN invalid as index"); |
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87 retval = true; |
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88 } |
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89 else if (xisinf (x)) |
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90 { |
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91 (*current_liboctave_error_handler) ("Inf invalid as index"); |
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92 retval = true; |
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93 } |
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94 |
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95 return retval; |
1
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96 } |
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97 |
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98 IDX_VEC_REP::idx_vector_rep (const ColumnVector& v) |
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99 : data (0), len (v.length ()), num_zeros (0), num_ones (0), max_val (0), |
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100 min_val (0), count (1), frozen_at_z_len (0), frozen_len (0), |
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101 colon (0), one_zero (0), initialized (0), frozen (0), |
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102 colon_equiv_checked (0), colon_equiv (0), orig_dims (len, 1) |
1
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103 { |
1560
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104 if (len == 0) |
1
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105 { |
191
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106 initialized = 1; |
1
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107 return; |
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108 } |
1560
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109 else |
1
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110 { |
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111 data = new octave_idx_type [len]; |
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112 |
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113 bool conversion_error = false; |
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114 |
5275
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115 for (octave_idx_type i = 0; i < len; i++) |
2500
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116 { |
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117 double d = v.elem (i); |
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118 |
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119 if (idx_is_inf_or_nan (d)) |
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120 return; |
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121 else |
4732
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122 data[i] = tree_to_mat_idx (d, conversion_error); |
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123 |
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124 if (conversion_error) |
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125 return; |
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126 } |
1
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127 } |
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128 |
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129 init_state (); |
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130 } |
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131 |
4650
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132 IDX_VEC_REP::idx_vector_rep (const NDArray& nda) |
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133 : data (0), len (nda.length ()), num_zeros (0), num_ones (0), |
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134 max_val (0), min_val (0), count (1), frozen_at_z_len (0), |
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135 frozen_len (0), colon (0), one_zero (0), initialized (0), |
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136 frozen (0), colon_equiv_checked (0), colon_equiv (0), |
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137 orig_dims (nda.dims ()) |
1560
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138 { |
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139 if (len == 0) |
1
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140 { |
1560
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141 initialized = 1; |
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142 return; |
1
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143 } |
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144 else |
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145 { |
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146 octave_idx_type k = 0; |
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147 data = new octave_idx_type [len]; |
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148 |
4732
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149 bool conversion_error = false; |
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150 |
5275
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151 for (octave_idx_type i = 0; i < len; i++) |
4650
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152 { |
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153 double d = nda.elem (i); |
2500
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154 |
4650
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155 if (idx_is_inf_or_nan (d)) |
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156 return; |
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157 else |
4732
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158 data[k++] = tree_to_mat_idx (d, conversion_error); |
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159 |
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160 if (conversion_error) |
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161 return; |
4650
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162 } |
1
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163 } |
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164 |
1560
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165 init_state (); |
1
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166 } |
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167 |
1560
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168 IDX_VEC_REP::idx_vector_rep (const Range& r) |
4653
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169 : data (0), len (r.nelem ()), num_zeros (0), num_ones (0), |
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170 max_val (0), min_val (0), count (1), frozen_at_z_len (0), |
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171 frozen_len (0), colon (0), one_zero (0), initialized (0), |
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172 frozen (0), colon_equiv_checked (0), colon_equiv (0), |
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173 orig_dims (1, len) |
1
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174 { |
191
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175 if (len < 0) |
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176 { |
1560
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177 (*current_liboctave_error_handler) ("invalid range used as index"); |
191
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178 return; |
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179 } |
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180 else if (len == 0) |
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181 { |
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182 initialized = 1; |
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183 return; |
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184 } |
1
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185 |
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186 double b = r.base (); |
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187 double step = r.inc (); |
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188 |
5275
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189 data = new octave_idx_type [len]; |
1
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190 |
4732
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191 bool conversion_error = false; |
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192 |
5275
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193 for (octave_idx_type i = 0; i < len; i++) |
1
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194 { |
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195 double val = b + i * step; |
2500
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196 |
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197 if (idx_is_inf_or_nan (val)) |
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198 return; |
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199 else |
4732
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200 data[i] = tree_to_mat_idx (val, conversion_error); |
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201 |
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202 if (conversion_error) |
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203 return; |
1
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204 } |
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205 |
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206 init_state (); |
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207 } |
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208 |
3928
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209 IDX_VEC_REP::idx_vector_rep (double d) |
4653
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210 : data (0), len (1), num_zeros (0), num_ones (0), |
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211 max_val (0), min_val (0), count (1), frozen_at_z_len (0), |
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212 frozen_len (0), colon (0), one_zero (0), initialized (0), |
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213 frozen (0), colon_equiv_checked (0), colon_equiv (0), |
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214 orig_dims (1, 1) |
3928
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215 { |
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216 if (idx_is_inf_or_nan (d)) |
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217 return; |
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218 else |
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219 { |
5275
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220 data = new octave_idx_type [len]; |
3928
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221 |
4732
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222 bool conversion_error = false; |
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223 |
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224 data[0] = tree_to_mat_idx (d, conversion_error); |
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225 |
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226 if (conversion_error) |
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227 return; |
3928
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228 } |
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229 |
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230 init_state (); |
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231 } |
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232 |
5275
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233 IDX_VEC_REP::idx_vector_rep (octave_idx_type i) |
4653
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234 : data (0), len (1), num_zeros (0), num_ones (0), |
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235 max_val (0), min_val (0), count (1), frozen_at_z_len (0), |
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236 frozen_len (0), colon (0), one_zero (0), initialized (0), |
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237 frozen (0), colon_equiv_checked (0), colon_equiv (0), |
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238 orig_dims (1, 1) |
3928
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239 { |
5275
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240 data = new octave_idx_type [len]; |
3928
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241 |
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242 data[0] = tree_to_mat_idx (i); |
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243 |
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244 init_state (); |
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245 } |
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246 |
1560
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247 IDX_VEC_REP::idx_vector_rep (char c) |
4653
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248 : data (0), len (0), num_zeros (0), num_ones (0), |
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249 max_val (0), min_val (0), count (1), frozen_at_z_len (0), |
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250 frozen_len (0), colon (1), one_zero (0), initialized (0), |
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251 frozen (0), colon_equiv_checked (0), colon_equiv (0), |
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252 orig_dims (0, 0) |
1560
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253 { |
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254 assert (c == ':'); |
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255 |
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256 init_state (); |
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257 } |
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258 |
2828
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259 IDX_VEC_REP::idx_vector_rep (bool b) |
4653
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260 : data (0), len (1), num_zeros (0), num_ones (0), |
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261 max_val (0), min_val (0), count (1), frozen_at_z_len (0), |
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262 frozen_len (0), colon (0), one_zero (1), initialized (0), |
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263 frozen (0), colon_equiv_checked (0), colon_equiv (0), |
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264 orig_dims (1, 1) |
2828
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265 { |
5275
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266 data = new octave_idx_type [len]; |
2828
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267 |
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268 data[0] = tree_to_mat_idx (b); |
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269 |
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270 init_state (); |
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271 } |
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272 |
4650
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273 IDX_VEC_REP::idx_vector_rep (const boolNDArray& bnda) |
4653
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274 : data (0), len (bnda.length ()), num_zeros (0), num_ones (0), |
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275 max_val (0), min_val (0), count (1), frozen_at_z_len (0), |
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276 frozen_len (0), colon (0), one_zero (1), initialized (0), |
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277 frozen (0), colon_equiv_checked (0), colon_equiv (0), |
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278 orig_dims (bnda.dims ()) |
2828
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279 { |
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280 if (len == 0) |
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281 { |
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282 initialized = 1; |
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283 return; |
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284 } |
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285 else |
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286 { |
5275
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287 octave_idx_type k = 0; |
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288 data = new octave_idx_type [len]; |
2828
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289 |
5275
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290 for (octave_idx_type i = 0; i < len; i++) |
4650
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291 data[k++] = tree_to_mat_idx (bnda.elem (i)); |
2828
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292 } |
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293 |
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294 init_state (); |
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295 } |
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296 |
1560
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297 IDX_VEC_REP& |
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298 IDX_VEC_REP::operator = (const IDX_VEC_REP& a) |
1
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299 { |
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300 if (this != &a) |
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301 { |
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302 delete [] data; |
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303 len = a.len; |
5275
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304 data = new octave_idx_type [len]; |
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305 for (octave_idx_type i = 0; i < len; i++) |
1
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306 data[i] = a.data[i]; |
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307 |
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308 num_zeros = a.num_zeros; |
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309 num_ones = a.num_ones; |
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310 max_val = a.max_val; |
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311 min_val = a.min_val; |
4653
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312 frozen_at_z_len = a.frozen_at_z_len; |
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313 frozen_len = a.frozen_len; |
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314 colon = a.colon; |
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315 one_zero = a.one_zero; |
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316 initialized = a.initialized; |
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317 frozen = a.frozen; |
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318 colon_equiv_checked = a.colon_equiv_checked; |
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319 colon_equiv = a.colon_equiv; |
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320 orig_dims = a.orig_dims; |
1
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321 } |
4653
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322 |
1
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323 return *this; |
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324 } |
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325 |
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326 void |
1560
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327 IDX_VEC_REP::init_state (void) |
1
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328 { |
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329 num_zeros = 0; |
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330 num_ones = 0; |
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331 |
1560
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332 if (colon) |
1
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333 { |
2828
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334 min_val = 0; |
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335 max_val = 0; |
1
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336 } |
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337 else |
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338 { |
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339 min_val = max_val = data[0]; |
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340 |
5275
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341 octave_idx_type i = 0; |
1
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342 do |
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343 { |
1560
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344 if (data[i] == -1) |
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345 num_zeros++; |
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346 else if (data[i] == 0) |
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347 num_ones++; |
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348 |
1
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349 if (data[i] > max_val) |
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350 max_val = data[i]; |
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351 |
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352 if (data[i] < min_val) |
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353 min_val = data[i]; |
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354 } |
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355 while (++i < len); |
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356 } |
1560
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357 |
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358 initialized = 1; |
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359 } |
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360 |
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361 void |
5275
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362 IDX_VEC_REP::maybe_convert_one_zero_to_idx (octave_idx_type z_len) |
1560
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363 { |
3680
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364 if (one_zero && (z_len == len || z_len == 0)) |
1560
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365 { |
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366 if (num_ones == 0) |
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367 { |
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368 len = 0; |
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369 max_val = 0; |
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370 min_val = 0; |
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371 delete [] data; |
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372 data = 0; |
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373 } |
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374 else |
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375 { |
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376 assert (num_ones + num_zeros == len); |
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377 |
5275
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378 octave_idx_type *new_data = new octave_idx_type [num_ones]; |
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379 octave_idx_type k = 0; |
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380 for (octave_idx_type i = 0; i < len; i++) |
1560
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381 if (data[i] == 0) |
1650
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382 new_data[k++] = i; |
1560
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383 |
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384 delete [] data; |
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385 len = num_ones; |
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386 data = new_data; |
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387 |
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388 min_val = max_val = data[0]; |
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389 |
5275
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390 octave_idx_type i = 0; |
1560
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391 do |
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392 { |
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393 if (data[i] > max_val) |
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394 max_val = data[i]; |
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395 |
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396 if (data[i] < min_val) |
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397 min_val = data[i]; |
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398 } |
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399 while (++i < len); |
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400 } |
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401 } |
1
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402 } |
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403 |
5275
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404 octave_idx_type |
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405 IDX_VEC_REP::checkelem (octave_idx_type n) const |
227
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406 { |
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407 if (n < 0 || n >= len) |
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408 { |
1560
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409 (*current_liboctave_error_handler) ("idx-vector: index out of range"); |
227
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410 return 0; |
|
411 } |
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412 |
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413 return elem (n); |
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414 } |
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415 |
1552
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416 static inline int |
3262
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417 intcmp (const void *ii, const void *jj) |
1552
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418 { |
5275
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419 return (*(static_cast<const octave_idx_type *> (ii)) - *(static_cast<const octave_idx_type *> (jj))); |
1552
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420 } |
|
421 |
1560
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422 static inline void |
5275
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423 sort_data (octave_idx_type *d, octave_idx_type l) |
1560
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424 { |
5275
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425 qsort (d, l, sizeof (octave_idx_type), intcmp); |
1560
|
426 } |
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427 |
5275
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428 static inline octave_idx_type |
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429 make_uniq (octave_idx_type *d, octave_idx_type l) |
1560
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430 { |
3125
|
431 if (l < 2) |
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432 return l; |
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433 |
5275
|
434 octave_idx_type k = 0; |
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435 for (octave_idx_type ii = 1; ii < l; ii++) |
1560
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436 { |
1650
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437 if (d[ii] != d[k]) |
1560
|
438 { |
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439 k++; |
1650
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440 d[k] = d[ii]; |
1560
|
441 } |
|
442 } |
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443 return k+1; |
|
444 } |
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445 |
5275
|
446 static inline octave_idx_type * |
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447 copy_data (const octave_idx_type *d, octave_idx_type l) |
209
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448 { |
5275
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449 octave_idx_type *new_data = new octave_idx_type [l]; |
1560
|
450 |
5275
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451 for (octave_idx_type ii = 0; ii < l; ii++) |
1650
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452 new_data[ii] = d[ii]; |
1560
|
453 |
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454 return new_data; |
|
455 } |
|
456 |
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457 int |
5275
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458 IDX_VEC_REP::is_colon_equiv (octave_idx_type n, int sort_uniq) |
1560
|
459 { |
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460 if (! colon_equiv_checked) |
|
461 { |
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462 if (colon) |
|
463 { |
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464 colon_equiv = 1; |
|
465 } |
5275
|
466 else if (static_cast<octave_idx_type> (len) > 1) |
1560
|
467 { |
3472
|
468 if (one_zero) |
|
469 { |
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470 colon_equiv = (len == n && ones_count () == n); |
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471 } |
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472 else if (sort_uniq) |
2356
|
473 { |
5275
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474 octave_idx_type *tmp_data = copy_data (data, len); |
2966
|
475 |
2356
|
476 sort_data (tmp_data, len); |
|
477 |
5275
|
478 octave_idx_type tmp_len = make_uniq (tmp_data, len); |
2966
|
479 |
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480 colon_equiv = (tmp_len == n |
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481 && tmp_data[0] == 0 |
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482 && tmp_data[tmp_len-1] == tmp_len - 1); |
1560
|
483 |
2966
|
484 delete [] tmp_data; |
|
485 } |
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486 else |
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487 { |
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488 if (len == n) |
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489 { |
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490 colon_equiv = 1; |
1560
|
491 |
5275
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492 for (octave_idx_type ii = 0; ii < n; ii++) |
2966
|
493 if (data[ii] != ii) |
|
494 { |
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495 colon_equiv = 0; |
|
496 break; |
|
497 } |
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498 } |
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499 } |
1560
|
500 } |
|
501 else |
2966
|
502 colon_equiv = (len == n && (n == 0 || (n == 1 && data[0] == 0))); |
1560
|
503 |
|
504 colon_equiv_checked = 1; |
|
505 } |
|
506 |
|
507 return colon_equiv; |
209
|
508 } |
|
509 |
417
|
510 void |
3079
|
511 IDX_VEC_REP::sort (bool uniq) |
|
512 { |
3125
|
513 if (len > 1) |
|
514 { |
|
515 sort_data (data, len); |
3079
|
516 |
3125
|
517 if (uniq) |
|
518 len = make_uniq (data, len); |
|
519 } |
3079
|
520 } |
|
521 |
|
522 void |
5275
|
523 IDX_VEC_REP::shorten (octave_idx_type n) |
434
|
524 { |
|
525 if (n > 0 && n <= len) |
|
526 len = n; |
|
527 else |
1560
|
528 (*current_liboctave_error_handler) |
|
529 ("idx_vector::shorten: internal error!"); |
434
|
530 } |
|
531 |
3504
|
532 std::ostream& |
|
533 IDX_VEC_REP::print (std::ostream& os) const |
1560
|
534 { |
5275
|
535 for (octave_idx_type ii = 0; ii < len; ii++) |
1650
|
536 os << data[ii] << "\n"; |
1560
|
537 return os; |
|
538 } |
|
539 |
5275
|
540 octave_idx_type |
|
541 IDX_VEC_REP::freeze (octave_idx_type z_len, const char *tag, bool resize_ok, |
4461
|
542 bool warn_resize) |
1
|
543 { |
1560
|
544 if (frozen) |
3680
|
545 return frozen_len; |
1560
|
546 |
|
547 frozen_len = -1; |
|
548 |
|
549 if (colon) |
|
550 frozen_len = z_len; |
|
551 else |
|
552 { |
|
553 if (len == 0) |
|
554 frozen_len = 0; |
|
555 else |
|
556 { |
2828
|
557 maybe_convert_one_zero_to_idx (z_len); |
1560
|
558 |
1650
|
559 max_val = max (); |
|
560 min_val = min (); |
1560
|
561 |
|
562 if (min_val < 0) |
|
563 { |
|
564 if (tag) |
|
565 (*current_liboctave_error_handler) |
|
566 ("invalid %s index = %d", tag, min_val+1); |
|
567 else |
|
568 (*current_liboctave_error_handler) |
|
569 ("invalid index = %d", min_val+1); |
|
570 |
|
571 initialized = 0; |
|
572 } |
|
573 else if (! resize_ok && max_val >= z_len) |
|
574 { |
|
575 if (tag) |
|
576 (*current_liboctave_error_handler) |
|
577 ("invalid %s index = %d", tag, max_val+1); |
|
578 else |
|
579 (*current_liboctave_error_handler) |
|
580 ("invalid index = %d", max_val+1); |
|
581 |
|
582 initialized = 0; |
|
583 } |
|
584 else |
4461
|
585 { |
|
586 if (warn_resize && max_val >= z_len) |
|
587 { |
|
588 if (tag) |
5108
|
589 (*current_liboctave_warning_handler) |
4461
|
590 ("resizing object with %s index = %d out of bounds", |
|
591 tag, max_val+1); |
|
592 else |
5108
|
593 (*current_liboctave_warning_handler) |
4461
|
594 ("resizing object with index = %d out of bounds", |
|
595 max_val+1); |
|
596 } |
|
597 |
|
598 frozen_len = length (z_len); |
|
599 } |
1560
|
600 } |
|
601 } |
|
602 |
|
603 frozen = 1; |
3680
|
604 |
|
605 frozen_at_z_len = z_len ? z_len : len; |
1560
|
606 |
|
607 return frozen_len; |
1
|
608 } |
|
609 |
|
610 /* |
|
611 ;;; Local Variables: *** |
|
612 ;;; mode: C++ *** |
|
613 ;;; End: *** |
|
614 */ |