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1 /* |
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2 |
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2847
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3 Copyright (C) 1996, 1997 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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2828
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36 #include "boolMatrix.h" |
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1560
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37 #include "dColVector.h" |
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453
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38 #include "dMatrix.h" |
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39 |
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40 #include "idx-vector.h" |
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1560
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41 #include "lo-error.h" |
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2500
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42 #include "lo-mappers.h" |
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1
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43 |
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1560
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44 #define IDX_VEC_REP idx_vector::idx_vector_rep |
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45 |
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46 IDX_VEC_REP::idx_vector_rep (const IDX_VEC_REP& a) |
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1
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47 { |
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1135
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48 data = 0; |
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191
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49 initialized = a.initialized; |
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1560
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50 frozen = a.frozen; |
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51 colon_equiv_checked = a.colon_equiv_checked; |
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52 colon_equiv = a.colon_equiv; |
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53 |
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54 colon = a.colon; |
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55 |
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56 orig_nr = a.orig_nr; |
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57 orig_nc = a.orig_nc; |
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191
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58 |
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1
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59 len = a.len; |
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60 if (len > 0) |
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61 { |
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62 data = new int [len]; |
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63 for (int i = 0; i < len; i++) |
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64 data[i] = a.data[i]; |
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65 |
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66 num_zeros = a.num_zeros; |
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67 num_ones = a.num_ones; |
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68 one_zero = a.one_zero; |
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69 |
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70 max_val = a.max_val; |
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71 min_val = a.min_val; |
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72 } |
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73 } |
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74 |
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75 static inline int |
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76 tree_to_mat_idx (double x) |
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77 { |
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2500
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78 return (x > 0) ? ((int) (x + 0.5) - 1) : ((int) (x - 0.5) - 1); |
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79 } |
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80 |
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81 static inline bool |
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82 idx_is_inf_or_nan (double x) |
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83 { |
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84 bool retval = false; |
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85 |
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86 if (xisnan (x)) |
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87 { |
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88 (*current_liboctave_error_handler) ("NaN invalid as index"); |
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89 retval = true; |
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90 } |
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91 else if (xisinf (x)) |
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92 { |
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93 (*current_liboctave_error_handler) ("Inf invalid as index"); |
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94 retval = true; |
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95 } |
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96 |
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97 return retval; |
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1
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98 } |
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99 |
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1560
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100 IDX_VEC_REP::idx_vector_rep (const ColumnVector& v) |
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101 { |
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102 data = 0; |
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191
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103 initialized = 0; |
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1560
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104 frozen = 0; |
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105 colon_equiv_checked = 0; |
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106 colon_equiv = 0; |
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107 colon = 0; |
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108 one_zero = 0; |
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109 |
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110 len = v.length (); |
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111 |
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112 orig_nr = len; |
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113 orig_nc = 1; |
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114 |
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115 if (len == 0) |
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1
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116 { |
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117 num_zeros = 0; |
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118 num_ones = 0; |
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119 max_val = 0; |
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120 min_val = 0; |
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191
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121 initialized = 1; |
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122 return; |
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123 } |
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124 else |
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125 { |
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126 data = new int [len]; |
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2500
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127 |
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1
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128 for (int i = 0; i < len; i++) |
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2500
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129 { |
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130 double d = v.elem (i); |
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131 |
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132 if (idx_is_inf_or_nan (d)) |
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133 return; |
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134 else |
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135 data[i] = tree_to_mat_idx (d); |
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136 } |
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1
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137 } |
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138 |
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139 init_state (); |
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140 } |
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141 |
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142 IDX_VEC_REP::idx_vector_rep (const Matrix& m) |
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143 { |
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144 data = 0; |
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145 initialized = 0; |
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146 frozen = 0; |
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147 colon_equiv_checked = 0; |
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148 colon_equiv = 0; |
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149 colon = 0; |
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2828
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150 one_zero = 0; |
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151 |
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152 orig_nr = m.rows (); |
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153 orig_nc = m.columns (); |
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154 |
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155 len = orig_nr * orig_nc; |
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156 |
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157 if (len == 0) |
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1
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158 { |
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159 num_zeros = 0; |
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160 num_ones = 0; |
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161 max_val = 0; |
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162 min_val = 0; |
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163 initialized = 1; |
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164 return; |
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165 } |
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166 else |
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167 { |
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168 int k = 0; |
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169 data = new int [len]; |
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170 |
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171 for (int j = 0; j < orig_nc; j++) |
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172 for (int i = 0; i < orig_nr; i++) |
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2500
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173 { |
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174 double d = m.elem (i, j); |
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175 |
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176 if (idx_is_inf_or_nan (d)) |
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177 return; |
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178 else |
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179 data[k++] = tree_to_mat_idx (d); |
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180 } |
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1
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181 } |
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182 |
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183 init_state (); |
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184 } |
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185 |
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2386
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186 IDX_VEC_REP::idx_vector_rep (double d) |
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187 { |
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188 data = 0; |
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189 initialized = 0; |
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190 frozen = 0; |
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191 colon_equiv_checked = 0; |
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192 colon_equiv = 0; |
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193 colon = 0; |
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2828
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194 one_zero = 0; |
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2386
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195 |
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196 len = 1; |
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197 |
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198 orig_nr = 1; |
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199 orig_nc = 1; |
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200 |
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2500
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201 if (idx_is_inf_or_nan (d)) |
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202 return; |
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203 else |
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204 { |
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205 data = new int [len]; |
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2386
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206 |
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2500
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207 data[0] = tree_to_mat_idx (d); |
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208 } |
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2508
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209 |
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210 init_state (); |
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2386
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211 } |
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212 |
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1560
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213 IDX_VEC_REP::idx_vector_rep (const Range& r) |
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214 { |
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1135
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215 data = 0; |
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191
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216 initialized = 0; |
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217 frozen = 0; |
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218 colon_equiv_checked = 0; |
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219 colon_equiv = 0; |
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220 colon = 0; |
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221 one_zero = 0; |
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191
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222 |
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1
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223 len = r.nelem (); |
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224 |
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225 orig_nr = 1; |
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226 orig_nc = len; |
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227 |
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191
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228 if (len < 0) |
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229 { |
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230 (*current_liboctave_error_handler) ("invalid range used as index"); |
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191
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231 return; |
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232 } |
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233 else if (len == 0) |
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234 { |
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235 num_zeros = 0; |
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236 num_ones = 0; |
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237 max_val = 0; |
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238 min_val = 0; |
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191
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239 initialized = 1; |
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240 return; |
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241 } |
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1
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242 |
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243 double b = r.base (); |
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244 double step = r.inc (); |
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245 |
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246 data = new int [len]; |
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247 |
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248 for (int i = 0; i < len; i++) |
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249 { |
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250 double val = b + i * step; |
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2500
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251 |
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252 if (idx_is_inf_or_nan (val)) |
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253 return; |
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254 else |
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255 data[i] = tree_to_mat_idx (val); |
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256 } |
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257 |
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258 init_state (); |
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259 } |
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260 |
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261 IDX_VEC_REP::idx_vector_rep (char c) |
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262 { |
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263 assert (c == ':'); |
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264 |
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265 colon = 1; |
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266 len = 0; |
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267 num_zeros = 0; |
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268 num_ones = 0; |
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269 one_zero = 0; |
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270 initialized = 0; |
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271 frozen = 0; |
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272 colon_equiv_checked = 0; |
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273 colon_equiv = 0; |
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274 data = 0; |
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275 |
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276 init_state (); |
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277 } |
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278 |
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2828
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279 IDX_VEC_REP::idx_vector_rep (bool b) |
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280 { |
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281 data = 0; |
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282 initialized = 0; |
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283 frozen = 0; |
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284 colon_equiv_checked = 0; |
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285 colon_equiv = 0; |
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286 colon = 0; |
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287 one_zero = 1; |
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288 |
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289 len = 1; |
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290 |
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291 orig_nr = 1; |
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292 orig_nc = 1; |
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293 |
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294 data = new int [len]; |
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295 |
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296 data[0] = tree_to_mat_idx (b); |
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297 |
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298 init_state (); |
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299 } |
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300 |
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301 IDX_VEC_REP::idx_vector_rep (const boolMatrix& bm) |
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302 { |
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303 data = 0; |
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304 initialized = 0; |
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305 frozen = 0; |
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306 colon_equiv_checked = 0; |
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307 colon_equiv = 0; |
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308 colon = 0; |
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309 one_zero = 1; |
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310 |
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311 orig_nr = bm.rows (); |
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312 orig_nc = bm.columns (); |
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313 |
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314 len = orig_nr * orig_nc; |
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315 |
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316 if (len == 0) |
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317 { |
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318 num_zeros = 0; |
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319 num_ones = 0; |
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320 one_zero = 0; |
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321 max_val = 0; |
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322 min_val = 0; |
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323 initialized = 1; |
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324 return; |
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325 } |
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326 else |
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327 { |
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328 int k = 0; |
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329 data = new int [len]; |
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330 |
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331 for (int j = 0; j < orig_nc; j++) |
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332 for (int i = 0; i < orig_nr; i++) |
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333 data[k++] = tree_to_mat_idx (bm.elem (i, j)); |
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334 } |
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335 |
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336 init_state (); |
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337 } |
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338 |
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339 IDX_VEC_REP& |
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340 IDX_VEC_REP::operator = (const IDX_VEC_REP& a) |
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1
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341 { |
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342 if (this != &a) |
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343 { |
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191
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344 initialized = a.initialized; |
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345 frozen = a.frozen; |
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346 colon_equiv_checked = a.colon_equiv_checked; |
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347 colon_equiv = a.colon_equiv; |
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348 |
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349 colon = a.colon; |
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350 |
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351 orig_nr = a.orig_nr; |
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352 orig_nc = a.orig_nc; |
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191
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353 |
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1
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354 delete [] data; |
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355 len = a.len; |
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356 data = new int [len]; |
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357 for (int i = 0; i < len; i++) |
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358 data[i] = a.data[i]; |
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359 |
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360 num_zeros = a.num_zeros; |
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361 num_ones = a.num_ones; |
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362 one_zero = a.one_zero; |
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363 |
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364 max_val = a.max_val; |
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365 min_val = a.min_val; |
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366 } |
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367 return *this; |
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368 } |
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369 |
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370 void |
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1560
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371 IDX_VEC_REP::init_state (void) |
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1
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372 { |
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373 num_zeros = 0; |
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374 num_ones = 0; |
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375 |
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1560
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376 if (colon) |
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1
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377 { |
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2828
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378 min_val = 0; |
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379 max_val = 0; |
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1
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380 } |
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381 else |
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382 { |
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383 min_val = max_val = data[0]; |
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384 |
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1321
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385 int i = 0; |
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1
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386 do |
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387 { |
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1560
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388 if (data[i] == -1) |
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389 num_zeros++; |
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390 else if (data[i] == 0) |
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391 num_ones++; |
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392 |
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1
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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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1560
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401 |
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402 initialized = 1; |
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403 } |
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404 |
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405 void |
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2828
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406 IDX_VEC_REP::maybe_convert_one_zero_to_idx (int z_len) |
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1560
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407 { |
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2828
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408 if (one_zero && z_len == len) |
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1560
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409 { |
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410 if (num_ones == 0) |
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411 { |
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412 len = 0; |
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413 max_val = 0; |
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414 min_val = 0; |
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415 delete [] data; |
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416 data = 0; |
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417 } |
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418 else |
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419 { |
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420 assert (num_ones + num_zeros == len); |
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421 |
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422 int *new_data = new int [num_ones]; |
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1650
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423 int k = 0; |
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1560
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424 for (int i = 0; i < len; i++) |
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425 if (data[i] == 0) |
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1650
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426 new_data[k++] = i; |
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1560
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427 |
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428 delete [] data; |
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429 len = num_ones; |
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430 data = new_data; |
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431 |
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432 min_val = max_val = data[0]; |
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433 |
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434 int i = 0; |
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435 do |
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436 { |
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437 if (data[i] > max_val) |
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438 max_val = data[i]; |
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439 |
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440 if (data[i] < min_val) |
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441 min_val = data[i]; |
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442 } |
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443 while (++i < len); |
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444 } |
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445 } |
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1
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446 } |
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447 |
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227
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448 int |
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1560
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449 IDX_VEC_REP::checkelem (int n) const |
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227
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450 { |
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451 if (n < 0 || n >= len) |
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452 { |
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1560
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453 (*current_liboctave_error_handler) ("idx-vector: index out of range"); |
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227
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454 return 0; |
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455 } |
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456 |
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457 return elem (n); |
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458 } |
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459 |
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1552
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460 static inline int |
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1650
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461 intcmp (int *ii, int *jj) |
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1552
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462 { |
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1650
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463 return (*ii - *jj); |
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1552
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464 } |
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465 |
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1560
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466 static inline void |
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1650
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467 sort_data (int *d, int l) |
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1560
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468 { |
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2800
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469 qsort (d, l, sizeof (int), intcmp); |
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1560
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470 } |
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471 |
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472 static inline int |
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1650
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473 make_uniq (int *d, int l) |
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1560
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474 { |
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475 int k = 0; |
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1759
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476 for (int ii = 1; ii < l; ii++) |
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1560
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477 { |
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1650
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478 if (d[ii] != d[k]) |
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1560
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479 { |
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480 k++; |
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1650
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481 d[k] = d[ii]; |
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1560
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482 } |
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483 } |
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484 return k+1; |
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485 } |
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486 |
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487 static inline int * |
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1650
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488 copy_data (const int *d, int l) |
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209
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489 { |
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1650
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490 int *new_data = new int [l]; |
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1560
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491 |
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1650
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492 for (int ii = 0; ii < l; ii++) |
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493 new_data[ii] = d[ii]; |
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1560
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494 |
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495 return new_data; |
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496 } |
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497 |
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498 int |
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2356
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499 IDX_VEC_REP::is_colon_equiv (int n, int sort_uniq) |
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1560
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500 { |
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501 if (! colon_equiv_checked) |
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502 { |
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503 if (colon) |
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504 { |
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505 colon_equiv = 1; |
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|
506 } |
|
2966
|
507 else if (len > 1 && ! one_zero) |
|
1560
|
508 { |
|
2356
|
509 if (sort_uniq) |
|
|
510 { |
|
2966
|
511 int *tmp_data = copy_data (data, len); |
|
|
512 |
|
2356
|
513 sort_data (tmp_data, len); |
|
|
514 |
|
2966
|
515 int tmp_len = make_uniq (tmp_data, len); |
|
|
516 |
|
|
517 colon_equiv = (tmp_len == n |
|
|
518 && tmp_data[0] == 0 |
|
|
519 && tmp_data[tmp_len-1] == tmp_len - 1); |
|
1560
|
520 |
|
2966
|
521 delete [] tmp_data; |
|
|
522 } |
|
|
523 else |
|
|
524 { |
|
|
525 if (len == n) |
|
|
526 { |
|
|
527 colon_equiv = 1; |
|
1560
|
528 |
|
2966
|
529 for (int ii = 0; ii < n; ii++) |
|
|
530 if (data[ii] != ii) |
|
|
531 { |
|
|
532 colon_equiv = 0; |
|
|
533 break; |
|
|
534 } |
|
|
535 } |
|
|
536 } |
|
1560
|
537 } |
|
|
538 else |
|
2966
|
539 colon_equiv = (len == n && (n == 0 || (n == 1 && data[0] == 0))); |
|
1560
|
540 |
|
|
541 colon_equiv_checked = 1; |
|
|
542 } |
|
|
543 |
|
|
544 return colon_equiv; |
|
209
|
545 } |
|
|
546 |
|
417
|
547 void |
|
3079
|
548 IDX_VEC_REP::sort (bool uniq) |
|
|
549 { |
|
|
550 sort_data (data, len); |
|
|
551 |
|
|
552 if (uniq) |
|
|
553 len = make_uniq (data, len); |
|
|
554 } |
|
|
555 |
|
|
556 void |
|
1560
|
557 IDX_VEC_REP::shorten (int n) |
|
434
|
558 { |
|
|
559 if (n > 0 && n <= len) |
|
|
560 len = n; |
|
|
561 else |
|
1560
|
562 (*current_liboctave_error_handler) |
|
|
563 ("idx_vector::shorten: internal error!"); |
|
434
|
564 } |
|
|
565 |
|
1
|
566 ostream& |
|
1560
|
567 IDX_VEC_REP::print (ostream& os) const |
|
|
568 { |
|
1650
|
569 for (int ii = 0; ii < len; ii++) |
|
|
570 os << data[ii] << "\n"; |
|
1560
|
571 return os; |
|
|
572 } |
|
|
573 |
|
|
574 int |
|
2830
|
575 IDX_VEC_REP::freeze (int z_len, const char *tag, int resize_ok) |
|
1
|
576 { |
|
1560
|
577 if (frozen) |
|
|
578 { |
|
|
579 assert (frozen_at_z_len == z_len); |
|
|
580 return frozen_len; |
|
|
581 } |
|
|
582 |
|
|
583 frozen_len = -1; |
|
|
584 |
|
|
585 if (colon) |
|
|
586 frozen_len = z_len; |
|
|
587 else |
|
|
588 { |
|
|
589 if (len == 0) |
|
|
590 frozen_len = 0; |
|
|
591 else |
|
|
592 { |
|
2828
|
593 maybe_convert_one_zero_to_idx (z_len); |
|
1560
|
594 |
|
1650
|
595 max_val = max (); |
|
|
596 min_val = min (); |
|
1560
|
597 |
|
|
598 if (min_val < 0) |
|
|
599 { |
|
|
600 if (tag) |
|
|
601 (*current_liboctave_error_handler) |
|
|
602 ("invalid %s index = %d", tag, min_val+1); |
|
|
603 else |
|
|
604 (*current_liboctave_error_handler) |
|
|
605 ("invalid index = %d", min_val+1); |
|
|
606 |
|
|
607 initialized = 0; |
|
|
608 } |
|
|
609 else if (! resize_ok && max_val >= z_len) |
|
|
610 { |
|
|
611 if (tag) |
|
|
612 (*current_liboctave_error_handler) |
|
|
613 ("invalid %s index = %d", tag, max_val+1); |
|
|
614 else |
|
|
615 (*current_liboctave_error_handler) |
|
|
616 ("invalid index = %d", max_val+1); |
|
|
617 |
|
|
618 initialized = 0; |
|
|
619 } |
|
|
620 else |
|
|
621 frozen_len = length (z_len); |
|
|
622 } |
|
|
623 } |
|
|
624 |
|
|
625 frozen = 1; |
|
|
626 frozen_at_z_len = z_len; |
|
|
627 |
|
|
628 return frozen_len; |
|
1
|
629 } |
|
|
630 |
|
|
631 /* |
|
|
632 ;;; Local Variables: *** |
|
|
633 ;;; mode: C++ *** |
|
|
634 ;;; End: *** |
|
|
635 */ |
