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1 /* |
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2 |
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1882
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3 Copyright (C) 1996 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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1315
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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1297
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23 #if defined (__GNUG__) |
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24 #pragma implementation |
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25 #endif |
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26 |
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240
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27 #ifdef HAVE_CONFIG_H |
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1192
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28 #include <config.h> |
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29 #endif |
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30 |
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1343
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31 #include <cstdlib> |
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32 |
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164
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33 #include <iostream.h> |
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34 |
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1352
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35 #include "Range.h" |
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1560
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36 #include "dColVector.h" |
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453
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37 #include "dMatrix.h" |
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1352
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38 |
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1
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39 #include "idx-vector.h" |
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1560
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40 #include "lo-error.h" |
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2500
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41 #include "lo-mappers.h" |
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1
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42 |
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1560
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43 #define IDX_VEC_REP idx_vector::idx_vector_rep |
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44 |
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45 IDX_VEC_REP::idx_vector_rep (const IDX_VEC_REP& a) |
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1
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46 { |
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1135
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47 data = 0; |
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191
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48 initialized = a.initialized; |
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1560
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49 frozen = a.frozen; |
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50 colon_equiv_checked = a.colon_equiv_checked; |
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51 colon_equiv = a.colon_equiv; |
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52 |
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53 colon = a.colon; |
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54 |
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55 orig_nr = a.orig_nr; |
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56 orig_nc = a.orig_nc; |
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191
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57 |
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1
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58 len = a.len; |
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59 if (len > 0) |
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60 { |
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61 data = new int [len]; |
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62 for (int i = 0; i < len; i++) |
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63 data[i] = a.data[i]; |
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64 |
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65 num_zeros = a.num_zeros; |
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66 num_ones = a.num_ones; |
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67 one_zero = a.one_zero; |
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68 |
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69 max_val = a.max_val; |
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70 min_val = a.min_val; |
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71 } |
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72 } |
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73 |
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74 static inline int |
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75 tree_to_mat_idx (double x) |
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76 { |
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2500
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77 return (x > 0) ? ((int) (x + 0.5) - 1) : ((int) (x - 0.5) - 1); |
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78 } |
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79 |
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80 static inline bool |
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81 idx_is_inf_or_nan (double x) |
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82 { |
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83 bool retval = false; |
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84 |
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85 if (xisnan (x)) |
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86 { |
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87 (*current_liboctave_error_handler) ("NaN invalid as index"); |
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88 retval = true; |
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89 } |
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90 else if (xisinf (x)) |
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91 { |
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92 (*current_liboctave_error_handler) ("Inf invalid as index"); |
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93 retval = true; |
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94 } |
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95 |
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96 return retval; |
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1
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97 } |
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98 |
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1560
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99 IDX_VEC_REP::idx_vector_rep (const ColumnVector& v) |
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1
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100 { |
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1135
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101 data = 0; |
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191
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102 initialized = 0; |
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1560
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103 frozen = 0; |
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104 colon_equiv_checked = 0; |
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105 colon_equiv = 0; |
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106 colon = 0; |
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1
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107 |
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1650
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108 len = v.length (); |
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109 |
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110 orig_nr = len; |
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111 orig_nc = 1; |
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112 |
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113 if (len == 0) |
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1
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114 { |
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115 num_zeros = 0; |
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116 num_ones = 0; |
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117 one_zero = 0; |
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118 max_val = 0; |
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119 min_val = 0; |
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191
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120 initialized = 1; |
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121 return; |
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122 } |
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1560
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123 else |
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1
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124 { |
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125 data = new int [len]; |
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2500
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126 |
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1
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127 for (int i = 0; i < len; i++) |
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2500
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128 { |
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129 double d = v.elem (i); |
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130 |
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131 if (idx_is_inf_or_nan (d)) |
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132 return; |
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133 else |
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134 data[i] = tree_to_mat_idx (d); |
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135 } |
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1
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136 } |
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137 |
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138 init_state (); |
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139 } |
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140 |
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141 IDX_VEC_REP::idx_vector_rep (const Matrix& m) |
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142 { |
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143 data = 0; |
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144 initialized = 0; |
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145 frozen = 0; |
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146 colon_equiv_checked = 0; |
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147 colon_equiv = 0; |
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148 colon = 0; |
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149 |
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150 orig_nr = m.rows (); |
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151 orig_nc = m.columns (); |
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152 |
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153 len = orig_nr * orig_nc; |
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154 |
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155 if (len == 0) |
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1
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156 { |
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1560
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157 num_zeros = 0; |
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158 num_ones = 0; |
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159 one_zero = 0; |
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160 max_val = 0; |
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161 min_val = 0; |
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162 initialized = 1; |
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163 return; |
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1
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164 } |
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165 else |
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166 { |
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1560
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167 int k = 0; |
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168 data = new int [len]; |
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2500
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169 |
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1560
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170 for (int j = 0; j < orig_nc; j++) |
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171 for (int i = 0; i < orig_nr; i++) |
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2500
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172 { |
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173 double d = m.elem (i, j); |
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174 |
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175 if (idx_is_inf_or_nan (d)) |
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176 return; |
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177 else |
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178 data[k++] = tree_to_mat_idx (d); |
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179 } |
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1
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180 } |
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181 |
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1560
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182 init_state (); |
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1
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183 } |
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184 |
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2386
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185 IDX_VEC_REP::idx_vector_rep (double d) |
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186 { |
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187 data = 0; |
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188 initialized = 0; |
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189 frozen = 0; |
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190 colon_equiv_checked = 0; |
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191 colon_equiv = 0; |
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192 colon = 0; |
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193 |
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194 len = 1; |
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195 |
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196 orig_nr = 1; |
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197 orig_nc = 1; |
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198 |
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2500
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199 if (idx_is_inf_or_nan (d)) |
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200 return; |
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201 else |
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202 { |
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203 data = new int [len]; |
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2386
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204 |
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2500
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205 data[0] = tree_to_mat_idx (d); |
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206 } |
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2386
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207 } |
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208 |
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1560
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209 IDX_VEC_REP::idx_vector_rep (const Range& r) |
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1
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210 { |
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1135
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211 data = 0; |
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191
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212 initialized = 0; |
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1560
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213 frozen = 0; |
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214 colon_equiv_checked = 0; |
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215 colon_equiv = 0; |
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216 colon = 0; |
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191
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217 |
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1
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218 len = r.nelem (); |
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219 |
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1560
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220 orig_nr = 1; |
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221 orig_nc = len; |
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222 |
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191
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223 if (len < 0) |
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224 { |
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1560
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225 (*current_liboctave_error_handler) ("invalid range used as index"); |
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191
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226 return; |
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227 } |
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228 else if (len == 0) |
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229 { |
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230 num_zeros = 0; |
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231 num_ones = 0; |
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232 one_zero = 0; |
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233 max_val = 0; |
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234 min_val = 0; |
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191
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235 initialized = 1; |
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236 return; |
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237 } |
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1
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238 |
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239 double b = r.base (); |
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240 double step = r.inc (); |
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241 |
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242 data = new int [len]; |
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243 |
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244 for (int i = 0; i < len; i++) |
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245 { |
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246 double val = b + i * step; |
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2500
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247 |
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248 if (idx_is_inf_or_nan (val)) |
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249 return; |
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250 else |
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251 data[i] = tree_to_mat_idx (val); |
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1
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252 } |
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253 |
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254 init_state (); |
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255 } |
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256 |
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1560
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257 IDX_VEC_REP::idx_vector_rep (char c) |
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258 { |
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259 assert (c == ':'); |
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260 |
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261 colon = 1; |
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262 len = 0; |
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263 num_zeros = 0; |
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264 num_ones = 0; |
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265 one_zero = 0; |
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266 initialized = 0; |
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267 frozen = 0; |
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268 colon_equiv_checked = 0; |
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269 colon_equiv = 0; |
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270 data = 0; |
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271 |
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272 init_state (); |
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273 } |
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274 |
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275 IDX_VEC_REP& |
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276 IDX_VEC_REP::operator = (const IDX_VEC_REP& a) |
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1
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277 { |
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278 if (this != &a) |
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279 { |
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191
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280 initialized = a.initialized; |
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281 frozen = a.frozen; |
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282 colon_equiv_checked = a.colon_equiv_checked; |
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283 colon_equiv = a.colon_equiv; |
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284 |
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285 colon = a.colon; |
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286 |
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287 orig_nr = a.orig_nr; |
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288 orig_nc = a.orig_nc; |
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191
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289 |
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1
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290 delete [] data; |
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291 len = a.len; |
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292 data = new int [len]; |
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293 for (int i = 0; i < len; i++) |
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294 data[i] = a.data[i]; |
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295 |
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296 num_zeros = a.num_zeros; |
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297 num_ones = a.num_ones; |
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298 one_zero = a.one_zero; |
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299 |
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300 max_val = a.max_val; |
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301 min_val = a.min_val; |
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302 } |
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303 return *this; |
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304 } |
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305 |
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306 void |
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1560
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307 IDX_VEC_REP::init_state (void) |
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1
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308 { |
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309 num_zeros = 0; |
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310 num_ones = 0; |
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311 |
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1560
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312 if (colon) |
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1
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313 { |
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1560
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314 one_zero = 0; |
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315 min_val = max_val = 0; |
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1
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316 } |
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317 else |
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318 { |
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1560
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319 one_zero = 1; |
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1
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320 |
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321 min_val = max_val = data[0]; |
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322 |
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1321
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323 int i = 0; |
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1
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324 do |
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325 { |
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1560
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326 if (data[i] == -1) |
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327 num_zeros++; |
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328 else if (data[i] == 0) |
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329 num_ones++; |
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330 |
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331 if (one_zero && data[i] != -1 && data[i] != 0) |
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332 one_zero = 0; |
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333 |
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1
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334 if (data[i] > max_val) |
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335 max_val = data[i]; |
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336 |
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337 if (data[i] < min_val) |
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338 min_val = data[i]; |
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339 } |
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340 while (++i < len); |
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341 } |
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1560
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342 |
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343 initialized = 1; |
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344 } |
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345 |
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346 void |
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347 IDX_VEC_REP::maybe_convert_one_zero_to_idx (int z_len, int prefer_zero_one) |
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348 { |
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349 if (one_zero && z_len == len |
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350 && (num_ones != len || prefer_zero_one)) |
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351 { |
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352 if (num_ones == 0) |
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353 { |
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354 len = 0; |
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355 max_val = 0; |
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356 min_val = 0; |
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357 delete [] data; |
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358 data = 0; |
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359 } |
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360 else |
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361 { |
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362 assert (num_ones + num_zeros == len); |
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363 |
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364 int *new_data = new int [num_ones]; |
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1650
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365 int k = 0; |
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1560
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366 for (int i = 0; i < len; i++) |
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367 if (data[i] == 0) |
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1650
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368 new_data[k++] = i; |
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1560
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369 |
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370 delete [] data; |
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371 len = num_ones; |
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372 data = new_data; |
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373 |
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374 min_val = max_val = data[0]; |
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375 |
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376 int i = 0; |
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377 do |
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378 { |
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379 if (data[i] > max_val) |
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380 max_val = data[i]; |
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381 |
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382 if (data[i] < min_val) |
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383 min_val = data[i]; |
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384 } |
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385 while (++i < len); |
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386 } |
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387 } |
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1
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388 } |
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389 |
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227
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390 int |
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1560
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391 IDX_VEC_REP::checkelem (int n) const |
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227
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392 { |
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393 if (n < 0 || n >= len) |
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394 { |
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1560
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395 (*current_liboctave_error_handler) ("idx-vector: index out of range"); |
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227
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396 return 0; |
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397 } |
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398 |
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399 return elem (n); |
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400 } |
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401 |
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1552
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402 static inline int |
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1650
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403 intcmp (int *ii, int *jj) |
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1552
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404 { |
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1650
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405 return (*ii - *jj); |
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1552
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406 } |
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407 |
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1560
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408 static inline void |
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1650
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409 sort_data (int *d, int l) |
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1560
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410 { |
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1650
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411 qsort ((void *) d, l, sizeof (int), |
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1560
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412 (int (*)(const void*, const void*)) intcmp); |
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413 } |
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414 |
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415 static inline int |
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1650
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416 make_uniq (int *d, int l) |
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1560
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417 { |
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418 int k = 0; |
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1759
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419 for (int ii = 1; ii < l; ii++) |
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1560
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420 { |
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1650
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421 if (d[ii] != d[k]) |
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1560
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422 { |
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423 k++; |
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1650
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424 d[k] = d[ii]; |
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1560
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425 } |
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426 } |
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427 return k+1; |
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428 } |
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429 |
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430 static inline int * |
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1650
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431 copy_data (const int *d, int l) |
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209
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432 { |
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1650
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433 int *new_data = new int [l]; |
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1560
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434 |
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1650
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435 for (int ii = 0; ii < l; ii++) |
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436 new_data[ii] = d[ii]; |
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1560
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437 |
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438 return new_data; |
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439 } |
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440 |
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441 int |
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2356
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442 IDX_VEC_REP::is_colon_equiv (int n, int sort_uniq) |
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1560
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443 { |
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444 if (! colon_equiv_checked) |
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445 { |
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446 if (colon) |
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447 { |
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448 colon_equiv = 1; |
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449 } |
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1595
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450 else if (len > 0 && len > 1 && ! one_zero) |
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1560
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451 { |
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452 int *tmp_data = copy_data (data, len); |
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453 |
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2356
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454 int tmp_len = len; |
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1560
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455 |
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2356
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456 if (sort_uniq) |
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457 { |
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458 sort_data (tmp_data, len); |
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459 |
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460 tmp_len = make_uniq (tmp_data, len); |
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461 } |
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1560
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462 |
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463 colon_equiv = ((tmp_len == 0 && n == 0) |
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464 || (tmp_len == n |
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465 && tmp_data[0] == 0 |
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466 && tmp_data[tmp_len-1] == tmp_len - 1)); |
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467 |
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468 delete [] tmp_data; |
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469 } |
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470 else |
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471 colon_equiv = 0; |
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472 |
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473 colon_equiv_checked = 1; |
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474 } |
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475 |
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476 return colon_equiv; |
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209
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477 } |
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478 |
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417
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479 void |
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1560
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480 IDX_VEC_REP::shorten (int n) |
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434
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481 { |
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482 if (n > 0 && n <= len) |
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483 len = n; |
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484 else |
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1560
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485 (*current_liboctave_error_handler) |
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|
486 ("idx_vector::shorten: internal error!"); |
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434
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487 } |
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488 |
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1
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489 ostream& |
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1560
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490 IDX_VEC_REP::print (ostream& os) const |
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491 { |
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1650
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492 for (int ii = 0; ii < len; ii++) |
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493 os << data[ii] << "\n"; |
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1560
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494 return os; |
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495 } |
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496 |
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497 int |
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498 IDX_VEC_REP::freeze (int z_len, const char *tag, |
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|
499 int prefer_zero_one, int resize_ok) |
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1
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500 { |
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1560
|
501 if (frozen) |
|
|
502 { |
|
|
503 assert (frozen_at_z_len == z_len); |
|
|
504 return frozen_len; |
|
|
505 } |
|
|
506 |
|
|
507 frozen_len = -1; |
|
|
508 |
|
|
509 if (colon) |
|
|
510 frozen_len = z_len; |
|
|
511 else |
|
|
512 { |
|
|
513 if (len == 0) |
|
|
514 frozen_len = 0; |
|
|
515 else |
|
|
516 { |
|
|
517 maybe_convert_one_zero_to_idx (z_len, prefer_zero_one); |
|
|
518 |
|
1650
|
519 max_val = max (); |
|
|
520 min_val = min (); |
|
1560
|
521 |
|
|
522 if (min_val < 0) |
|
|
523 { |
|
|
524 if (tag) |
|
|
525 (*current_liboctave_error_handler) |
|
|
526 ("invalid %s index = %d", tag, min_val+1); |
|
|
527 else |
|
|
528 (*current_liboctave_error_handler) |
|
|
529 ("invalid index = %d", min_val+1); |
|
|
530 |
|
|
531 initialized = 0; |
|
|
532 } |
|
|
533 else if (! resize_ok && max_val >= z_len) |
|
|
534 { |
|
|
535 if (tag) |
|
|
536 (*current_liboctave_error_handler) |
|
|
537 ("invalid %s index = %d", tag, max_val+1); |
|
|
538 else |
|
|
539 (*current_liboctave_error_handler) |
|
|
540 ("invalid index = %d", max_val+1); |
|
|
541 |
|
|
542 initialized = 0; |
|
|
543 } |
|
|
544 else |
|
|
545 frozen_len = length (z_len); |
|
|
546 } |
|
|
547 } |
|
|
548 |
|
|
549 frozen = 1; |
|
|
550 frozen_at_z_len = z_len; |
|
|
551 |
|
|
552 return frozen_len; |
|
1
|
553 } |
|
|
554 |
|
|
555 /* |
|
|
556 ;;; Local Variables: *** |
|
|
557 ;;; mode: C++ *** |
|
|
558 ;;; End: *** |
|
|
559 */ |
