Mercurial > hg > octave-lyh
annotate liboctave/idx-vector.cc @ 8972:5fa53d1b6247
more indexing optimizations
author | Jaroslav Hajek <highegg@gmail.com> |
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date | Fri, 13 Mar 2009 13:39:22 +0100 |
parents | eb63fbe60fab |
children | 7e31df9a0334 |
rev | line source |
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1 | 1 /* |
2 | |
8920 | 3 Copyright (C) 2008, 2009 Jaroslav Hajek |
7017 | 4 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002, |
5 2003, 2004, 2005, 2006, 2007 John W. Eaton | |
1 | 6 |
7 This file is part of Octave. | |
8 | |
9 Octave is free software; you can redistribute it and/or modify it | |
10 under the terms of the GNU General Public License as published by the | |
7016 | 11 Free Software Foundation; either version 3 of the License, or (at your |
12 option) any later version. | |
1 | 13 |
14 Octave is distributed in the hope that it will be useful, but WITHOUT | |
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 for more details. | |
18 | |
19 You should have received a copy of the GNU General Public License | |
7016 | 20 along with Octave; see the file COPYING. If not, see |
21 <http://www.gnu.org/licenses/>. | |
1 | 22 |
23 */ | |
24 | |
240 | 25 #ifdef HAVE_CONFIG_H |
1192 | 26 #include <config.h> |
1 | 27 #endif |
28 | |
1343 | 29 #include <cstdlib> |
30 | |
3503 | 31 #include <iostream> |
164 | 32 |
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33 #include "idx-vector.h" |
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34 #include "Array.h" |
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35 #include "Sparse.h" |
1352 | 36 #include "Range.h" |
37 | |
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38 #include "oct-locbuf.h" |
1560 | 39 #include "lo-error.h" |
2500 | 40 #include "lo-mappers.h" |
1 | 41 |
8333 | 42 static void |
43 gripe_invalid_index (void) | |
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44 { |
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45 (*current_liboctave_error_handler) |
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46 ("subscript indices must be either positive integers or logicals."); |
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47 } |
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48 |
8333 | 49 static void |
50 gripe_invalid_range (void) | |
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51 { |
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52 (*current_liboctave_error_handler) |
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53 ("invalid range used as index."); |
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54 } |
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55 |
8333 | 56 static void |
57 gripe_index_out_of_range (void) | |
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58 { |
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59 (*current_liboctave_error_handler) |
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60 ("internal error: idx_vector index out of range."); |
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61 } |
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62 |
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63 DEFINE_OCTAVE_ALLOCATOR(idx_vector::idx_colon_rep); |
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64 |
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65 idx_vector::idx_colon_rep::idx_colon_rep (char c) |
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66 { |
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67 if (c != ':') |
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68 { |
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69 (*current_liboctave_error_handler) |
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70 ("internal error: invalid character converted to idx_vector. Must be ':'."); |
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71 err = true; |
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72 } |
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73 } |
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74 |
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75 octave_idx_type |
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76 idx_vector::idx_colon_rep::checkelem (octave_idx_type i) const |
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77 { |
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78 if (i < 0) |
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79 { |
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80 gripe_index_out_of_range (); |
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81 return 0; |
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82 } |
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83 else |
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84 return i; |
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85 } |
1560 | 86 |
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87 std::ostream& |
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88 idx_vector::idx_colon_rep::print (std::ostream& os) const |
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89 { |
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90 return os << ":"; |
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91 } |
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92 |
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93 DEFINE_OCTAVE_ALLOCATOR(idx_vector::idx_range_rep); |
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94 |
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95 idx_vector::idx_range_rep::idx_range_rep (octave_idx_type _start, octave_idx_type _limit, |
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96 octave_idx_type _step) |
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97 : start(_start), len (_step ? (_limit - _start) / _step : -1), step (_step) |
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98 { |
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99 if (len < 0) |
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100 { |
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101 gripe_invalid_range (); |
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102 err = true; |
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103 } |
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104 else if (start < 0) |
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105 { |
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106 gripe_invalid_index (); |
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107 err = true; |
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108 } |
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109 } |
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110 |
8333 | 111 static void |
112 gripe_non_int_range (void) | |
1 | 113 { |
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114 (*current_liboctave_error_handler) |
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115 ("If a range is used as subscript, all elements are expected to be integers."); |
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116 } |
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117 |
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118 idx_vector::idx_range_rep::idx_range_rep (const Range& r) |
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119 : start (0), len (r.nelem ()), step (1) |
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120 { |
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121 if (len < 0) |
1 | 122 { |
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123 gripe_invalid_range (); |
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124 err = true; |
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125 } |
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126 else if (len > 0) |
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127 { |
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128 if (r.all_elements_are_ints ()) |
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129 { |
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130 start = static_cast<octave_idx_type> (r.base ()) - 1; |
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131 step = static_cast<octave_idx_type> (r.inc ()); |
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132 } |
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133 else |
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134 { |
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135 gripe_non_int_range (); |
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136 err = true; |
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137 } |
1 | 138 } |
139 } | |
140 | |
5275 | 141 octave_idx_type |
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142 idx_vector::idx_range_rep::checkelem (octave_idx_type i) const |
1 | 143 { |
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144 if (i < 0 || i >= len) |
4732 | 145 { |
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146 gripe_index_out_of_range (); |
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147 return 0; |
4732 | 148 } |
149 else | |
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150 return start + i*step; |
3928 | 151 } |
152 | |
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153 idx_vector::idx_base_rep * |
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154 idx_vector::idx_range_rep::sort_uniq_clone (bool) |
2500 | 155 { |
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156 if (step < 0) |
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157 return new idx_range_rep (start + (len - 1)*step, len, -step, DIRECT); |
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158 else |
2500 | 159 { |
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160 count++; |
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161 return this; |
2500 | 162 } |
1 | 163 } |
164 | |
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165 std::ostream& |
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166 idx_vector::idx_range_rep::print (std::ostream& os) const |
1 | 167 { |
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168 os << start << ':' << step << ':' << start + len*step; |
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169 return os; |
1560 | 170 } |
171 | |
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172 inline octave_idx_type |
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173 convert_index (octave_idx_type i, bool& conv_error, |
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174 octave_idx_type& ext) |
1560 | 175 { |
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176 if (i <= 0) |
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177 conv_error = true; |
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178 if (ext < i) ext = i; |
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179 return i - 1; |
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180 } |
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181 |
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182 inline octave_idx_type |
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183 convert_index (double x, bool& conv_error, octave_idx_type& ext) |
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184 { |
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185 octave_idx_type i; |
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186 if (xisnan (x) || xisinf (x)) |
1 | 187 { |
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188 i = 0; |
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189 conv_error = true; |
1 | 190 } |
191 else | |
192 { | |
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193 i = static_cast<octave_idx_type> (x); |
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194 if (static_cast<double> (i) != x) |
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195 conv_error = true; |
1 | 196 } |
197 | |
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198 return convert_index (i, conv_error, ext); |
1 | 199 } |
200 | |
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201 inline octave_idx_type |
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202 convert_index (float x, bool& conv_error, octave_idx_type& ext) |
1 | 203 { |
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204 return convert_index (static_cast<double> (x), conv_error, ext); |
1 | 205 } |
206 | |
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207 template <class T> |
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208 inline octave_idx_type |
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209 convert_index (octave_int<T> x, bool& conv_error, |
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210 octave_idx_type& ext) |
3928 | 211 { |
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212 octave_idx_type i = octave_int<octave_idx_type> (x).value (); |
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213 return convert_index (i, conv_error, ext); |
3928 | 214 } |
215 | |
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216 DEFINE_OCTAVE_ALLOCATOR(idx_vector::idx_scalar_rep); |
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217 |
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218 template <class T> |
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219 idx_vector::idx_scalar_rep::idx_scalar_rep (T x) |
3928 | 220 { |
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221 octave_idx_type dummy; |
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222 data = convert_index (x, err, dummy); |
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223 if (err) gripe_invalid_index (); |
3928 | 224 } |
225 | |
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226 idx_vector::idx_scalar_rep::idx_scalar_rep (octave_idx_type i) |
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227 : data (i) |
1560 | 228 { |
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229 if (data < 0) |
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230 { |
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231 gripe_invalid_index (); |
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232 err = true; |
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233 } |
2828 | 234 } |
235 | |
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236 octave_idx_type |
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237 idx_vector::idx_scalar_rep::checkelem (octave_idx_type i) const |
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238 { |
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239 if (i != 0) gripe_index_out_of_range (); |
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240 return data; |
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241 } |
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242 |
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243 std::ostream& idx_vector::idx_scalar_rep::print (std::ostream& os) const |
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244 { |
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245 return os << data; |
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246 } |
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247 |
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248 DEFINE_OCTAVE_ALLOCATOR(idx_vector::idx_vector_rep); |
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249 |
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250 template <class T> |
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251 idx_vector::idx_vector_rep::idx_vector_rep (const Array<T>& nda) |
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252 : data (0), len (nda.numel ()), ext (0), aowner (0), orig_dims (nda.dims ()) |
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253 { |
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254 if (len != 0) |
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255 { |
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256 octave_idx_type *d = new octave_idx_type[len]; |
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257 for (octave_idx_type i = 0; i < len; i++) |
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258 d[i] = convert_index (nda.xelem (i), err, ext); |
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259 data = d; |
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260 |
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261 if (err) gripe_invalid_index (); |
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262 } |
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263 } |
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264 |
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265 // Note that this makes a shallow copy of the index array. |
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266 |
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267 idx_vector::idx_vector_rep::idx_vector_rep (const Array<octave_idx_type>& inda) |
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268 : data (inda.data ()), len (inda.numel ()), ext (0), |
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269 aowner (new Array<octave_idx_type> (inda)), orig_dims (inda.dims ()) |
2828 | 270 { |
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271 if (len != 0) |
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272 { |
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273 octave_idx_type max = -1; |
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274 for (octave_idx_type i = 0; i < len; i++) |
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275 { |
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276 octave_idx_type k = inda.xelem (i); |
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277 if (k < 0) |
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278 err = true; |
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279 else if (k > max) |
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280 max = k; |
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281 } |
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282 |
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283 ext = max + 1; |
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284 |
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285 if (err) gripe_invalid_index (); |
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286 } |
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287 } |
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288 |
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289 idx_vector::idx_vector_rep::idx_vector_rep (bool b) |
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290 : data (0), len (b ? 1 : 0), ext (0), aowner (0), orig_dims (len, len) |
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291 { |
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292 if (len != 0) |
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293 { |
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294 octave_idx_type *d = new octave_idx_type [1]; |
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295 d[0] = 0; |
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296 data = d; |
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297 ext = 1; |
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298 } |
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299 } |
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300 |
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301 idx_vector::idx_vector_rep::idx_vector_rep (const Array<bool>& bnda) |
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302 : data (0), len (0), ext (0), aowner (0), orig_dims () |
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303 { |
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304 for (octave_idx_type i = 0, l = bnda.numel (); i < l; i++) |
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305 if (bnda.xelem (i)) len++; |
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306 |
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307 dim_vector dv = bnda.dims (); |
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308 |
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309 orig_dims = ((dv.length () == 2 && dv(0) == 1) |
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310 ? dim_vector (1, len) : orig_dims = dim_vector (len, 1)); |
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311 |
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312 if (len != 0) |
2828 | 313 { |
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314 octave_idx_type *d = new octave_idx_type [len]; |
2828 | 315 |
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316 octave_idx_type ntot = bnda.length (); |
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317 |
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318 octave_idx_type k = 0; |
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319 for (octave_idx_type i = 0; i < ntot; i++) |
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320 if (bnda.xelem (i)) d[k++] = i; |
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321 |
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322 data = d; |
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323 |
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324 ext = d[k-1] + 1; |
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325 } |
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326 } |
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327 |
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328 idx_vector::idx_vector_rep::idx_vector_rep (const Sparse<bool>& bnda) |
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329 : data (0), len (0), ext (0), aowner (0), orig_dims () |
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330 { |
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331 for (octave_idx_type i = 0, l = bnda.nnz (); i < l; i++) |
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332 if (bnda.data (i)) len++; |
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333 |
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334 dim_vector dv = bnda.dims (); |
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335 |
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336 orig_dims = ((dv.length () == 2 && dv(0) == 1) |
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337 ? dim_vector (1, len) : orig_dims = dim_vector (len, 1)); |
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338 |
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339 if (len != 0) |
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340 { |
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341 octave_idx_type *d = new octave_idx_type [len]; |
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342 |
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343 octave_idx_type nnz = bnda.nnz (); |
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344 |
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345 octave_idx_type k = 0; |
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346 // FIXME: I hope this is OK, i.e. the element iterated this way are correctly ordered. |
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347 for (octave_idx_type i = 0; i < nnz; i++) |
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348 { |
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349 if (bnda.data (i)) |
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350 d[k++] = bnda.cidx (i) + bnda.rows () * bnda.ridx (i); |
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351 } |
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352 |
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353 data = d; |
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354 |
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355 ext = d[k-1] + 1; |
2828 | 356 } |
357 } | |
358 | |
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359 idx_vector::idx_vector_rep::~idx_vector_rep (void) |
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360 { |
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361 if (aowner) |
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362 delete aowner; |
1 | 363 else |
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364 delete [] data; |
1560 | 365 } |
366 | |
5275 | 367 octave_idx_type |
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368 idx_vector::idx_vector_rep::checkelem (octave_idx_type n) const |
227 | 369 { |
370 if (n < 0 || n >= len) | |
371 { | |
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372 gripe_invalid_index (); |
227 | 373 return 0; |
374 } | |
375 | |
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376 return xelem (n); |
1560 | 377 } |
378 | |
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379 idx_vector::idx_base_rep * |
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380 idx_vector::idx_vector_rep::sort_uniq_clone (bool uniq) |
1560 | 381 { |
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382 octave_idx_type *new_data = new octave_idx_type[len]; |
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383 std::copy (data, data + len, new_data); |
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384 std::sort (new_data, new_data + len); |
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385 octave_idx_type new_len; |
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386 if (uniq) |
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387 new_len = std::unique (new_data, new_data + len) - new_data; |
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388 else |
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389 new_len = len; |
2966 | 390 |
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391 return new idx_vector_rep (new_data, new_len, ext, orig_dims, DIRECT); |
209 | 392 } |
393 | |
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394 std::ostream& |
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395 idx_vector::idx_vector_rep::print (std::ostream& os) const |
3079 | 396 { |
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397 os << '['; |
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398 for (octave_idx_type ii = 0; ii < len - 1; ii++) |
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399 os << data[ii] << ',' << ' '; |
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400 if (len > 0) os << data[len-1]; os << ']'; |
7425 | 401 |
1560 | 402 return os; |
403 } | |
404 | |
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405 const idx_vector idx_vector::colon (new idx_vector::idx_colon_rep ()); |
1560 | 406 |
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407 bool idx_vector::maybe_reduce (octave_idx_type n, const idx_vector& j, |
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408 octave_idx_type nj) |
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409 { |
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410 bool reduced = false; |
1560 | 411 |
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412 // Empty index always reduces. |
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413 if (rep->length (n) == 0) |
1560 | 414 { |
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415 *this = idx_vector (); |
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416 return true; |
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417 } |
1560 | 418 |
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419 // Possibly skip singleton dims. |
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420 if (n == 1 && rep->is_colon_equiv (n)) |
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421 { |
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422 *this = j; |
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423 return true; |
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424 } |
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425 |
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426 if (nj == 1 && j.is_colon_equiv (nj)) |
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427 return true; |
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428 |
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429 switch (j.idx_class ()) |
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430 { |
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431 case class_colon: |
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432 if (rep->is_colon_equiv (n)) |
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433 { |
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434 // (:,:) reduces to (:) |
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435 *this = colon; |
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436 reduced = true; |
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437 } |
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438 else if (rep->idx_class () == class_scalar) |
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439 { |
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440 // (i,:) reduces to a range. |
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441 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep); |
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442 octave_idx_type k = r->get_data (); |
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443 *this = new idx_range_rep (k, nj, n, DIRECT); |
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444 reduced = true; |
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445 } |
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446 break; |
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447 case class_range: |
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448 if (rep->is_colon_equiv (n)) |
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449 { |
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450 // (:,i:j) reduces to a range (the step must be 1) |
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451 idx_range_rep * rj = dynamic_cast<idx_range_rep *> (j.rep); |
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452 if (rj->get_step () == 1) |
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453 { |
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454 octave_idx_type s = rj->get_start (), l = rj->length (nj); |
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455 *this = new idx_range_rep (s * n, l * n, 1, DIRECT); |
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456 reduced = true; |
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457 } |
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458 } |
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459 else if (rep->idx_class () == class_scalar) |
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460 { |
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461 // (k,i:d:j) reduces to a range. |
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462 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep); |
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463 idx_range_rep * rj = dynamic_cast<idx_range_rep *> (j.rep); |
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464 octave_idx_type k = r->get_data (); |
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465 octave_idx_type s = rj->get_start (), l = rj->length (nj); |
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466 octave_idx_type t = rj->get_step (); |
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467 *this = new idx_range_rep (n * s + k, l, n * t, DIRECT); |
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468 reduced = true; |
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469 } |
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470 break; |
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471 case class_scalar: |
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472 switch (rep->idx_class ()) |
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473 { |
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474 case class_scalar: |
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475 { |
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476 // (i,j) reduces to a single index. |
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477 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep); |
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478 idx_scalar_rep * rj = dynamic_cast<idx_scalar_rep *> (j.rep); |
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479 octave_idx_type k = r->get_data () + n * rj->get_data (); |
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480 *this = new idx_scalar_rep (k, DIRECT); |
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481 reduced = true; |
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482 } |
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483 break; |
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484 case class_range: |
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|
485 { |
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486 // (i:d:j,k) reduces to a range. |
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487 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep); |
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488 idx_scalar_rep * rj = dynamic_cast<idx_scalar_rep *> (j.rep); |
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489 octave_idx_type s = r->get_start (), l = r->length (nj); |
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490 octave_idx_type t = r->get_step (); |
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491 octave_idx_type k = rj->get_data (); |
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492 *this = new idx_range_rep (n * k + s, l, t, DIRECT); |
7cbe01c21986
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493 reduced = true; |
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|
494 } |
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|
495 break; |
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|
496 case class_colon: |
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|
497 { |
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498 // (:,k) reduces to a range. |
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499 idx_scalar_rep * rj = dynamic_cast<idx_scalar_rep *> (j.rep); |
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500 octave_idx_type k = rj->get_data (); |
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501 *this = new idx_range_rep (n * k, n, 1, DIRECT); |
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502 reduced = true; |
7cbe01c21986
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|
503 } |
7cbe01c21986
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|
504 break; |
7cbe01c21986
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|
505 default: |
7cbe01c21986
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506 break; |
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|
507 } |
7cbe01c21986
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|
508 break; |
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|
509 default: |
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510 break; |
1560 | 511 } |
512 | |
8290
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513 return reduced; |
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|
514 } |
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|
515 |
8333 | 516 bool |
517 idx_vector::is_cont_range (octave_idx_type n, | |
518 octave_idx_type& l, octave_idx_type& u) const | |
8290
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|
519 { |
7cbe01c21986
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520 bool res = false; |
7cbe01c21986
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521 switch (rep->idx_class ()) |
7cbe01c21986
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522 { |
7cbe01c21986
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523 case class_colon: |
7cbe01c21986
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|
524 l = 0; u = n; |
7cbe01c21986
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525 res = true; |
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526 break; |
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|
527 case class_range: |
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|
528 { |
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529 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep); |
7cbe01c21986
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530 if (r->get_step () == 1) |
7cbe01c21986
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|
531 { |
7cbe01c21986
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532 l = r->get_start (); |
7cbe01c21986
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533 u = l + r->length (n); |
7cbe01c21986
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534 res = true; |
7cbe01c21986
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|
535 } |
7cbe01c21986
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|
536 } |
7cbe01c21986
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|
537 break; |
7cbe01c21986
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|
538 case class_scalar: |
7cbe01c21986
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|
539 { |
7cbe01c21986
improve dense array indexing
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|
540 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep); |
7cbe01c21986
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541 l = r->get_data (); |
7cbe01c21986
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542 u = l + 1; |
7cbe01c21986
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543 res = true; |
7cbe01c21986
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|
544 } |
7cbe01c21986
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|
545 break; |
7cbe01c21986
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|
546 default: |
7cbe01c21986
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547 break; |
7cbe01c21986
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|
548 } |
7cbe01c21986
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|
549 |
7cbe01c21986
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550 return res; |
7cbe01c21986
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|
551 } |
7cbe01c21986
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|
552 |
7cbe01c21986
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|
553 idx_vector |
7cbe01c21986
improve dense array indexing
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|
554 idx_vector::complement (octave_idx_type n) const |
7cbe01c21986
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parents:
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|
555 { |
8379
ad8ed668e0a4
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|
556 OCTAVE_LOCAL_BUFFER_INIT (bool, left, n, true); |
8290
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|
557 |
7cbe01c21986
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|
558 octave_idx_type cnt = n; |
3680 | 559 |
8290
7cbe01c21986
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|
560 for (octave_idx_type i = 0, len = length (); i < len; i++) |
7cbe01c21986
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diff
changeset
|
561 { |
7cbe01c21986
improve dense array indexing
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|
562 octave_idx_type k = xelem (i); |
7cbe01c21986
improve dense array indexing
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parents:
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diff
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|
563 if (k < n && left[k]) |
7cbe01c21986
improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
564 { |
7cbe01c21986
improve dense array indexing
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diff
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|
565 left[k] = false; |
7cbe01c21986
improve dense array indexing
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parents:
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diff
changeset
|
566 cnt--; |
7cbe01c21986
improve dense array indexing
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diff
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|
567 } |
7cbe01c21986
improve dense array indexing
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parents:
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diff
changeset
|
568 } |
7cbe01c21986
improve dense array indexing
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parents:
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diff
changeset
|
569 |
7cbe01c21986
improve dense array indexing
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|
570 octave_idx_type len = cnt, *data = new octave_idx_type[len]; |
7cbe01c21986
improve dense array indexing
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|
571 for (octave_idx_type i = 0, j = 0; i < n; i++) |
7cbe01c21986
improve dense array indexing
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parents:
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|
572 if (left[i]) data[j++] = i; |
7cbe01c21986
improve dense array indexing
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parents:
7774
diff
changeset
|
573 |
8301
f7d44b6a74df
fix out-of-bounds checks in null assignments
Jaroslav Hajek <highegg@gmail.com>
parents:
8290
diff
changeset
|
574 return new idx_vector_rep (data, len, |
f7d44b6a74df
fix out-of-bounds checks in null assignments
Jaroslav Hajek <highegg@gmail.com>
parents:
8290
diff
changeset
|
575 len ? data[len-1]+1 : 0, |
f7d44b6a74df
fix out-of-bounds checks in null assignments
Jaroslav Hajek <highegg@gmail.com>
parents:
8290
diff
changeset
|
576 dim_vector (1, len), DIRECT); |
8290
7cbe01c21986
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diff
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|
577 } |
7cbe01c21986
improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
578 |
8367
445d27d79f4e
support permutation matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
8333
diff
changeset
|
579 bool |
445d27d79f4e
support permutation matrix objects
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parents:
8333
diff
changeset
|
580 idx_vector::is_permutation (octave_idx_type n) const |
445d27d79f4e
support permutation matrix objects
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parents:
8333
diff
changeset
|
581 { |
445d27d79f4e
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parents:
8333
diff
changeset
|
582 bool retval = false; |
445d27d79f4e
support permutation matrix objects
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parents:
8333
diff
changeset
|
583 |
445d27d79f4e
support permutation matrix objects
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parents:
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diff
changeset
|
584 if (is_colon_equiv (n)) |
445d27d79f4e
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parents:
8333
diff
changeset
|
585 retval = true; |
445d27d79f4e
support permutation matrix objects
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parents:
8333
diff
changeset
|
586 else if (length (n) == n && extent(n) == n) |
445d27d79f4e
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parents:
8333
diff
changeset
|
587 { |
8379
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allow initialized local buffers
Jaroslav Hajek <highegg@gmail.com>
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8375
diff
changeset
|
588 OCTAVE_LOCAL_BUFFER_INIT (bool, left, n, true); |
8367
445d27d79f4e
support permutation matrix objects
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parents:
8333
diff
changeset
|
589 |
445d27d79f4e
support permutation matrix objects
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parents:
8333
diff
changeset
|
590 retval = true; |
445d27d79f4e
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parents:
8333
diff
changeset
|
591 |
445d27d79f4e
support permutation matrix objects
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parents:
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diff
changeset
|
592 for (octave_idx_type i = 0, len = length (); i < len; i++) |
445d27d79f4e
support permutation matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
8333
diff
changeset
|
593 { |
445d27d79f4e
support permutation matrix objects
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parents:
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diff
changeset
|
594 octave_idx_type k = xelem (i); |
445d27d79f4e
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parents:
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diff
changeset
|
595 if (left[k]) |
445d27d79f4e
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parents:
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diff
changeset
|
596 left[k] = false; |
445d27d79f4e
support permutation matrix objects
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parents:
8333
diff
changeset
|
597 else |
445d27d79f4e
support permutation matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
8333
diff
changeset
|
598 { |
445d27d79f4e
support permutation matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
8333
diff
changeset
|
599 retval = false; |
445d27d79f4e
support permutation matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
600 break; |
445d27d79f4e
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parents:
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diff
changeset
|
601 } |
445d27d79f4e
support permutation matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
602 } |
445d27d79f4e
support permutation matrix objects
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parents:
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diff
changeset
|
603 |
445d27d79f4e
support permutation matrix objects
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parents:
8333
diff
changeset
|
604 } |
445d27d79f4e
support permutation matrix objects
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parents:
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diff
changeset
|
605 |
445d27d79f4e
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parents:
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diff
changeset
|
606 return retval; |
445d27d79f4e
support permutation matrix objects
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parents:
8333
diff
changeset
|
607 } |
445d27d79f4e
support permutation matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
608 |
8290
7cbe01c21986
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|
609 octave_idx_type |
8677
095ae5e0a831
eliminte some compiler warnings
John W. Eaton <jwe@octave.org>
parents:
8384
diff
changeset
|
610 idx_vector::freeze (octave_idx_type z_len, const char *, bool resize_ok) |
8290
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improve dense array indexing
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diff
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|
611 { |
7cbe01c21986
improve dense array indexing
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diff
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|
612 if (! resize_ok && extent (z_len) > z_len) |
7cbe01c21986
improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
613 { |
7cbe01c21986
improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
614 (*current_liboctave_error_handler) |
7cbe01c21986
improve dense array indexing
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parents:
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diff
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|
615 ("invalid matrix index = %d", extent (z_len)); |
7cbe01c21986
improve dense array indexing
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diff
changeset
|
616 rep->err = true; |
7cbe01c21986
improve dense array indexing
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parents:
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diff
changeset
|
617 chkerr (); |
7cbe01c21986
improve dense array indexing
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parents:
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diff
changeset
|
618 } |
1560 | 619 |
8290
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|
620 return length (z_len); |
7cbe01c21986
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parents:
7774
diff
changeset
|
621 } |
7cbe01c21986
improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
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622 |
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623 octave_idx_type |
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624 idx_vector::ones_count () const |
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625 { |
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626 octave_idx_type n = 0; |
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627 if (is_colon ()) |
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628 n = 1; |
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629 else |
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630 for (octave_idx_type i = 0; i < length (1); i++) |
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631 if (xelem (i) == 0) n++; |
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632 return n; |
1 | 633 } |
634 | |
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635 // Instantiate the octave_int constructors we want. |
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636 #define INSTANTIATE_SCALAR_VECTOR_REP_CONST(T) \ |
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637 template OCTAVE_API idx_vector::idx_scalar_rep::idx_scalar_rep (T); \ |
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638 template OCTAVE_API idx_vector::idx_vector_rep::idx_vector_rep (const Array<T>&); |
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639 |
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640 INSTANTIATE_SCALAR_VECTOR_REP_CONST (float) |
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641 INSTANTIATE_SCALAR_VECTOR_REP_CONST (double) |
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642 INSTANTIATE_SCALAR_VECTOR_REP_CONST (octave_int8) |
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643 INSTANTIATE_SCALAR_VECTOR_REP_CONST (octave_int16) |
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644 INSTANTIATE_SCALAR_VECTOR_REP_CONST (octave_int32) |
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645 INSTANTIATE_SCALAR_VECTOR_REP_CONST (octave_int64) |
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646 INSTANTIATE_SCALAR_VECTOR_REP_CONST (octave_uint8) |
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647 INSTANTIATE_SCALAR_VECTOR_REP_CONST (octave_uint16) |
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648 INSTANTIATE_SCALAR_VECTOR_REP_CONST (octave_uint32) |
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649 INSTANTIATE_SCALAR_VECTOR_REP_CONST (octave_uint64) |
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650 |
1 | 651 /* |
652 ;;; Local Variables: *** | |
653 ;;; mode: C++ *** | |
654 ;;; End: *** | |
655 */ |