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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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38 |
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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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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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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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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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2508
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207 |
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208 init_state (); |
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2386
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209 } |
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210 |
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1560
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211 IDX_VEC_REP::idx_vector_rep (const Range& r) |
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1
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212 { |
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1135
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213 data = 0; |
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191
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214 initialized = 0; |
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1560
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215 frozen = 0; |
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216 colon_equiv_checked = 0; |
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217 colon_equiv = 0; |
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218 colon = 0; |
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191
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219 |
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220 len = r.nelem (); |
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221 |
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222 orig_nr = 1; |
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223 orig_nc = len; |
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224 |
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191
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225 if (len < 0) |
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226 { |
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227 (*current_liboctave_error_handler) ("invalid range used as index"); |
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191
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228 return; |
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229 } |
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230 else if (len == 0) |
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231 { |
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232 num_zeros = 0; |
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233 num_ones = 0; |
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234 one_zero = 0; |
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1560
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235 max_val = 0; |
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236 min_val = 0; |
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191
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237 initialized = 1; |
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238 return; |
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239 } |
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1
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240 |
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241 double b = r.base (); |
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242 double step = r.inc (); |
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243 |
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244 data = new int [len]; |
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245 |
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246 for (int i = 0; i < len; i++) |
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247 { |
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248 double val = b + i * step; |
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2500
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249 |
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250 if (idx_is_inf_or_nan (val)) |
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251 return; |
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252 else |
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253 data[i] = tree_to_mat_idx (val); |
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1
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254 } |
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255 |
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256 init_state (); |
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257 } |
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258 |
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1560
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259 IDX_VEC_REP::idx_vector_rep (char c) |
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260 { |
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261 assert (c == ':'); |
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262 |
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263 colon = 1; |
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264 len = 0; |
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265 num_zeros = 0; |
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266 num_ones = 0; |
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267 one_zero = 0; |
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268 initialized = 0; |
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269 frozen = 0; |
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270 colon_equiv_checked = 0; |
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271 colon_equiv = 0; |
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272 data = 0; |
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273 |
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274 init_state (); |
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275 } |
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276 |
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277 IDX_VEC_REP& |
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278 IDX_VEC_REP::operator = (const IDX_VEC_REP& a) |
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1
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279 { |
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280 if (this != &a) |
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281 { |
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191
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282 initialized = a.initialized; |
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283 frozen = a.frozen; |
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284 colon_equiv_checked = a.colon_equiv_checked; |
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285 colon_equiv = a.colon_equiv; |
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286 |
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287 colon = a.colon; |
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288 |
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289 orig_nr = a.orig_nr; |
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290 orig_nc = a.orig_nc; |
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191
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291 |
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1
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292 delete [] data; |
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293 len = a.len; |
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294 data = new int [len]; |
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295 for (int i = 0; i < len; i++) |
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296 data[i] = a.data[i]; |
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297 |
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298 num_zeros = a.num_zeros; |
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299 num_ones = a.num_ones; |
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300 one_zero = a.one_zero; |
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301 |
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302 max_val = a.max_val; |
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303 min_val = a.min_val; |
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304 } |
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305 return *this; |
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306 } |
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307 |
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308 void |
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1560
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309 IDX_VEC_REP::init_state (void) |
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1
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310 { |
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311 num_zeros = 0; |
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312 num_ones = 0; |
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313 |
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1560
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314 if (colon) |
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1
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315 { |
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316 one_zero = 0; |
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317 min_val = max_val = 0; |
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1
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318 } |
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319 else |
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320 { |
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321 one_zero = 1; |
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322 |
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323 min_val = max_val = data[0]; |
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324 |
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1321
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325 int i = 0; |
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1
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326 do |
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327 { |
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1560
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328 if (data[i] == -1) |
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329 num_zeros++; |
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330 else if (data[i] == 0) |
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331 num_ones++; |
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332 |
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333 if (one_zero && data[i] != -1 && data[i] != 0) |
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334 one_zero = 0; |
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335 |
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1
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336 if (data[i] > max_val) |
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337 max_val = data[i]; |
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338 |
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339 if (data[i] < min_val) |
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340 min_val = data[i]; |
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341 } |
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342 while (++i < len); |
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343 } |
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1560
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344 |
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345 initialized = 1; |
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346 } |
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347 |
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348 void |
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349 IDX_VEC_REP::maybe_convert_one_zero_to_idx (int z_len, int prefer_zero_one) |
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350 { |
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351 if (one_zero && z_len == len |
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352 && (num_ones != len || prefer_zero_one)) |
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353 { |
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354 if (num_ones == 0) |
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355 { |
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356 len = 0; |
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357 max_val = 0; |
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358 min_val = 0; |
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359 delete [] data; |
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360 data = 0; |
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361 } |
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362 else |
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363 { |
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364 assert (num_ones + num_zeros == len); |
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365 |
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366 int *new_data = new int [num_ones]; |
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1650
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367 int k = 0; |
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1560
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368 for (int i = 0; i < len; i++) |
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369 if (data[i] == 0) |
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370 new_data[k++] = i; |
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371 |
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372 delete [] data; |
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373 len = num_ones; |
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374 data = new_data; |
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375 |
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376 min_val = max_val = data[0]; |
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377 |
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378 int i = 0; |
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379 do |
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380 { |
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381 if (data[i] > max_val) |
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382 max_val = data[i]; |
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383 |
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384 if (data[i] < min_val) |
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385 min_val = data[i]; |
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386 } |
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387 while (++i < len); |
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388 } |
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389 } |
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1
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390 } |
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391 |
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227
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392 int |
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1560
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393 IDX_VEC_REP::checkelem (int n) const |
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227
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394 { |
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395 if (n < 0 || n >= len) |
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396 { |
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1560
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397 (*current_liboctave_error_handler) ("idx-vector: index out of range"); |
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227
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398 return 0; |
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399 } |
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400 |
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401 return elem (n); |
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402 } |
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403 |
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1552
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404 static inline int |
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1650
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405 intcmp (int *ii, int *jj) |
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1552
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406 { |
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1650
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407 return (*ii - *jj); |
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1552
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408 } |
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409 |
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1560
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410 static inline void |
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1650
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411 sort_data (int *d, int l) |
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1560
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412 { |
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1650
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413 qsort ((void *) d, l, sizeof (int), |
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1560
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414 (int (*)(const void*, const void*)) intcmp); |
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415 } |
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416 |
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417 static inline int |
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1650
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418 make_uniq (int *d, int l) |
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1560
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419 { |
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420 int k = 0; |
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1759
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421 for (int ii = 1; ii < l; ii++) |
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1560
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422 { |
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1650
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423 if (d[ii] != d[k]) |
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1560
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424 { |
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425 k++; |
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1650
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426 d[k] = d[ii]; |
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1560
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427 } |
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428 } |
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429 return k+1; |
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430 } |
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431 |
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432 static inline int * |
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1650
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433 copy_data (const int *d, int l) |
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209
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434 { |
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1650
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435 int *new_data = new int [l]; |
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1560
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436 |
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1650
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437 for (int ii = 0; ii < l; ii++) |
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438 new_data[ii] = d[ii]; |
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1560
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439 |
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440 return new_data; |
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441 } |
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442 |
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443 int |
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2356
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444 IDX_VEC_REP::is_colon_equiv (int n, int sort_uniq) |
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1560
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445 { |
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446 if (! colon_equiv_checked) |
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447 { |
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448 if (colon) |
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449 { |
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450 colon_equiv = 1; |
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451 } |
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1595
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452 else if (len > 0 && len > 1 && ! one_zero) |
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1560
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453 { |
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454 int *tmp_data = copy_data (data, len); |
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455 |
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2356
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456 int tmp_len = len; |
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1560
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457 |
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2356
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458 if (sort_uniq) |
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459 { |
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460 sort_data (tmp_data, len); |
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461 |
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462 tmp_len = make_uniq (tmp_data, len); |
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463 } |
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1560
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464 |
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465 colon_equiv = ((tmp_len == 0 && n == 0) |
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466 || (tmp_len == n |
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467 && tmp_data[0] == 0 |
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468 && tmp_data[tmp_len-1] == tmp_len - 1)); |
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469 |
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470 delete [] tmp_data; |
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471 } |
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472 else |
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473 colon_equiv = 0; |
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474 |
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475 colon_equiv_checked = 1; |
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476 } |
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477 |
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478 return colon_equiv; |
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209
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479 } |
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480 |
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417
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481 void |
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1560
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482 IDX_VEC_REP::shorten (int n) |
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434
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483 { |
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484 if (n > 0 && n <= len) |
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485 len = n; |
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486 else |
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1560
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487 (*current_liboctave_error_handler) |
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488 ("idx_vector::shorten: internal error!"); |
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434
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489 } |
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490 |
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1
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491 ostream& |
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1560
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492 IDX_VEC_REP::print (ostream& os) const |
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493 { |
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1650
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494 for (int ii = 0; ii < len; ii++) |
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495 os << data[ii] << "\n"; |
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1560
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496 return os; |
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497 } |
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498 |
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499 int |
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500 IDX_VEC_REP::freeze (int z_len, const char *tag, |
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501 int prefer_zero_one, int resize_ok) |
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1
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502 { |
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1560
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503 if (frozen) |
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504 { |
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505 assert (frozen_at_z_len == z_len); |
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506 return frozen_len; |
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507 } |
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508 |
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509 frozen_len = -1; |
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510 |
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511 if (colon) |
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512 frozen_len = z_len; |
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513 else |
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514 { |
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515 if (len == 0) |
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516 frozen_len = 0; |
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517 else |
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518 { |
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519 maybe_convert_one_zero_to_idx (z_len, prefer_zero_one); |
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520 |
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1650
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521 max_val = max (); |
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522 min_val = min (); |
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1560
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523 |
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524 if (min_val < 0) |
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525 { |
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526 if (tag) |
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527 (*current_liboctave_error_handler) |
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528 ("invalid %s index = %d", tag, min_val+1); |
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529 else |
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530 (*current_liboctave_error_handler) |
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531 ("invalid index = %d", min_val+1); |
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532 |
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533 initialized = 0; |
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534 } |
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535 else if (! resize_ok && max_val >= z_len) |
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536 { |
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537 if (tag) |
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538 (*current_liboctave_error_handler) |
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539 ("invalid %s index = %d", tag, max_val+1); |
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540 else |
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541 (*current_liboctave_error_handler) |
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542 ("invalid index = %d", max_val+1); |
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543 |
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544 initialized = 0; |
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545 } |
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546 else |
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547 frozen_len = length (z_len); |
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548 } |
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549 } |
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550 |
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551 frozen = 1; |
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552 frozen_at_z_len = z_len; |
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553 |
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554 return frozen_len; |
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1
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555 } |
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556 |
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557 /* |
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558 ;;; Local Variables: *** |
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559 ;;; mode: C++ *** |
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560 ;;; End: *** |
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561 */ |
