Mercurial > hg > octave-jordi
annotate libinterp/octave-value/ov-base-int.cc @ 19696:4197fc428c7d
maint: Update copyright notices for 2015.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 11 Feb 2015 14:19:08 -0500 |
| parents | 6113e0c6920b |
| children | 09ed6f7538dd |
| rev | line source |
|---|---|
| 4903 | 1 /* |
| 2 | |
|
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3 Copyright (C) 2004-2015 John W. Eaton |
| 4903 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 4903 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 4903 | 20 |
| 21 */ | |
| 22 | |
| 23 #ifdef HAVE_CONFIG_H | |
| 24 #include <config.h> | |
| 25 #endif | |
| 26 | |
| 27 #include <iostream> | |
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28 #include <limits> |
| 4903 | 29 #include <vector> |
| 30 | |
| 31 #include "lo-ieee.h" | |
| 32 #include "lo-utils.h" | |
| 33 #include "mx-base.h" | |
| 34 #include "quit.h" | |
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35 #include "oct-locbuf.h" |
| 4903 | 36 |
| 37 #include "defun.h" | |
| 38 #include "gripes.h" | |
| 39 #include "oct-obj.h" | |
| 40 #include "oct-lvalue.h" | |
| 4944 | 41 #include "oct-stream.h" |
| 4903 | 42 #include "ops.h" |
| 43 #include "ov-base.h" | |
| 44 #include "ov-base-mat.h" | |
| 45 #include "ov-base-mat.cc" | |
| 46 #include "ov-base-scalar.h" | |
| 47 #include "ov-base-scalar.cc" | |
| 48 #include "ov-base-int.h" | |
| 49 #include "ov-int-traits.h" | |
| 50 #include "pr-output.h" | |
| 51 #include "variables.h" | |
| 52 | |
| 53 #include "byte-swap.h" | |
| 54 #include "ls-oct-ascii.h" | |
| 55 #include "ls-utils.h" | |
| 56 #include "ls-hdf5.h" | |
| 57 | |
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58 // We have all the machinery below (octave_base_int_helper and |
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59 // octave_base_int_helper_traits) to avoid a few warnings from GCC |
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60 // about comparisons always false due to limited range of data types. |
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61 // Ugh. The cure may be worse than the disease. |
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62 |
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63 template <class T, bool is_signed = true, bool can_be_too_big = true> |
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64 struct octave_base_int_helper |
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65 { |
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66 static bool |
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67 char_value_out_of_range (T val) |
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68 { |
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69 return val < 0 || val > std::numeric_limits<unsigned char>::max (); |
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70 } |
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71 }; |
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72 |
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73 template <class T> |
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74 struct octave_base_int_helper<T, false, false> |
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75 { |
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76 static bool char_value_out_of_range (T) { return false; } |
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77 }; |
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78 |
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79 template <class T> |
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80 struct octave_base_int_helper<T, false, true> |
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81 { |
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82 static bool char_value_out_of_range (T val) |
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83 { |
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84 return val > std::numeric_limits<unsigned char>::max (); |
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85 } |
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86 }; |
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87 |
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88 template <class T> |
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89 struct octave_base_int_helper<T, true, false> |
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90 { |
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91 static bool char_value_out_of_range (T val) { return val < 0; } |
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92 }; |
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93 |
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94 // For all types other than char, signed char, and unsigned char, we |
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95 // assume that the upper limit for the range of allowable values is |
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96 // larger than the range for unsigned char. If that's not true, we |
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97 // are still OK, but will see the warnings again for any other types |
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98 // that do not meet this assumption. |
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99 |
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100 template <class T> |
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101 struct octave_base_int_helper_traits |
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102 { |
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103 static const bool can_be_larger_than_uchar_max = true; |
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104 }; |
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105 |
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106 template <> |
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107 struct octave_base_int_helper_traits<char> |
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108 { |
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109 static const bool can_be_larger_than_uchar_max = false; |
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110 }; |
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111 |
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112 template <> |
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113 struct octave_base_int_helper_traits<signed char> |
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114 { |
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115 static const bool can_be_larger_than_uchar_max = false; |
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116 }; |
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117 |
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118 template <> |
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119 struct octave_base_int_helper_traits<unsigned char> |
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120 { |
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121 static const bool can_be_larger_than_uchar_max = false; |
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122 }; |
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123 |
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124 |
| 4903 | 125 template <class T> |
| 5759 | 126 octave_base_value * |
| 4903 | 127 octave_base_int_matrix<T>::try_narrowing_conversion (void) |
| 128 { | |
| 5759 | 129 octave_base_value *retval = 0; |
| 4903 | 130 |
| 4932 | 131 if (this->matrix.nelem () == 1) |
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132 retval = new typename octave_value_int_traits<T>::scalar_type |
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133 (this->matrix (0)); |
| 4903 | 134 |
| 135 return retval; | |
| 136 } | |
| 137 | |
| 138 template <class T> | |
| 5992 | 139 octave_value |
| 140 octave_base_int_matrix<T>::convert_to_str_internal (bool, bool, char type) const | |
| 141 { | |
| 142 octave_value retval; | |
| 143 dim_vector dv = this->dims (); | |
| 144 octave_idx_type nel = dv.numel (); | |
| 145 | |
| 146 charNDArray chm (dv); | |
| 147 | |
| 148 bool warned = false; | |
| 149 | |
| 150 for (octave_idx_type i = 0; i < nel; i++) | |
| 151 { | |
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152 octave_quit (); |
| 5992 | 153 |
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154 typename T::element_type tmp = this->matrix(i); |
| 5992 | 155 |
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156 typedef typename T::element_type::val_type val_type; |
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157 |
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158 val_type ival = tmp.value (); |
| 5992 | 159 |
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160 static const bool is_signed = std::numeric_limits<val_type>::is_signed; |
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161 static const bool can_be_larger_than_uchar_max |
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162 = octave_base_int_helper_traits<val_type>::can_be_larger_than_uchar_max; |
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163 |
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164 if (octave_base_int_helper<val_type, is_signed, |
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165 can_be_larger_than_uchar_max>::char_value_out_of_range (ival)) |
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166 { |
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167 // FIXME: is there something better we could do? |
| 5992 | 168 |
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169 ival = 0; |
| 5992 | 170 |
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171 if (! warned) |
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172 { |
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173 ::warning ("range error for conversion to character value"); |
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174 warned = true; |
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175 } |
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176 } |
| 5992 | 177 else |
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178 chm (i) = static_cast<char> (ival); |
| 5992 | 179 } |
| 180 | |
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181 retval = octave_value (chm, type); |
| 5992 | 182 |
| 183 return retval; | |
| 184 } | |
| 185 | |
| 186 template <class T> | |
| 4903 | 187 bool |
| 6974 | 188 octave_base_int_matrix<T>::save_ascii (std::ostream& os) |
| 4903 | 189 { |
| 4932 | 190 dim_vector d = this->dims (); |
| 4903 | 191 |
| 192 os << "# ndims: " << d.length () << "\n"; | |
| 193 | |
| 194 for (int i = 0; i < d.length (); i++) | |
| 195 os << " " << d (i); | |
| 196 | |
| 4932 | 197 os << "\n" << this->matrix; |
| 4903 | 198 |
| 199 return true; | |
| 200 } | |
| 201 | |
| 202 template <class T> | |
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203 bool |
| 4903 | 204 octave_base_int_matrix<T>::load_ascii (std::istream& is) |
| 205 { | |
| 206 int mdims = 0; | |
| 207 bool success = true; | |
| 208 | |
| 209 if (extract_keyword (is, "ndims", mdims, true)) | |
| 210 { | |
| 211 if (mdims >= 0) | |
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212 { |
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213 dim_vector dv; |
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214 dv.resize (mdims); |
| 4903 | 215 |
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216 for (int i = 0; i < mdims; i++) |
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217 is >> dv(i); |
| 4903 | 218 |
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219 T tmp(dv); |
| 4903 | 220 |
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221 is >> tmp; |
| 4903 | 222 |
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223 if (!is) |
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224 { |
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225 error ("load: failed to load matrix constant"); |
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226 success = false; |
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227 } |
| 4903 | 228 |
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229 this->matrix = tmp; |
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230 } |
| 4903 | 231 else |
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232 { |
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233 error ("load: failed to extract number of rows and columns"); |
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234 success = false; |
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235 } |
| 4903 | 236 } |
| 237 else | |
| 238 error ("load: failed to extract number of dimensions"); | |
| 239 | |
| 240 return success; | |
| 241 } | |
| 242 | |
| 243 template <class T> | |
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244 bool |
| 4917 | 245 octave_base_int_matrix<T>::save_binary (std::ostream& os, bool&) |
| 4903 | 246 { |
| 4932 | 247 dim_vector d = this->dims (); |
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248 if (d.length () < 1) |
| 4903 | 249 return false; |
| 250 | |
| 251 // Use negative value for ndims to differentiate with old format!! | |
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252 int32_t tmp = - d.length (); |
| 5760 | 253 os.write (reinterpret_cast<char *> (&tmp), 4); |
| 4903 | 254 for (int i=0; i < d.length (); i++) |
| 255 { | |
| 256 tmp = d(i); | |
| 5760 | 257 os.write (reinterpret_cast<char *> (&tmp), 4); |
| 4903 | 258 } |
| 259 | |
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260 os.write (reinterpret_cast<const char *> (this->matrix.data ()), |
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261 this->byte_size ()); |
| 4903 | 262 |
| 263 return true; | |
| 264 } | |
| 265 | |
| 266 template <class T> | |
| 267 bool | |
| 268 octave_base_int_matrix<T>::load_binary (std::istream& is, bool swap, | |
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269 oct_mach_info::float_format) |
| 4903 | 270 { |
| 5828 | 271 int32_t mdims; |
| 5760 | 272 if (! is.read (reinterpret_cast<char *> (&mdims), 4)) |
| 4903 | 273 return false; |
| 274 if (swap) | |
| 4944 | 275 swap_bytes<4> (&mdims); |
| 4917 | 276 if (mdims >= 0) |
| 277 return false; | |
| 4903 | 278 |
| 4917 | 279 mdims = - mdims; |
| 5828 | 280 int32_t di; |
| 4917 | 281 dim_vector dv; |
| 282 dv.resize (mdims); | |
| 4903 | 283 |
| 4917 | 284 for (int i = 0; i < mdims; i++) |
| 4903 | 285 { |
| 5760 | 286 if (! is.read (reinterpret_cast<char *> (&di), 4)) |
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287 return false; |
| 4903 | 288 if (swap) |
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289 swap_bytes<4> (&di); |
| 4917 | 290 dv(i) = di; |
| 4903 | 291 } |
| 292 | |
| 5157 | 293 // Convert an array with a single dimension to be a row vector. |
| 294 // Octave should never write files like this, other software | |
| 295 // might. | |
| 296 | |
| 297 if (mdims == 1) | |
| 298 { | |
| 299 mdims = 2; | |
| 300 dv.resize (mdims); | |
| 301 dv(1) = dv(0); | |
| 302 dv(0) = 1; | |
| 303 } | |
| 304 | |
| 4917 | 305 T m (dv); |
| 306 | |
| 5760 | 307 if (! is.read (reinterpret_cast<char *> (m.fortran_vec ()), m.byte_size ())) |
| 4917 | 308 return false; |
| 4903 | 309 |
| 4917 | 310 if (swap) |
| 311 { | |
| 312 int nel = dv.numel (); | |
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313 int bytes = nel / m.byte_size (); |
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314 for (int i = 0; i < nel; i++) |
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315 switch (bytes) |
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316 { |
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317 case 8: |
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318 swap_bytes<8> (&m(i)); |
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319 break; |
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320 case 4: |
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321 swap_bytes<4> (&m(i)); |
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322 break; |
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323 case 2: |
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324 swap_bytes<2> (&m(i)); |
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325 break; |
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326 case 1: |
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327 default: |
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328 break; |
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329 } |
| 4917 | 330 } |
| 331 | |
| 4932 | 332 this->matrix = m; |
| 4903 | 333 return true; |
| 334 } | |
| 335 | |
| 336 #if defined (HAVE_HDF5) | |
| 337 | |
| 338 template <class T> | |
| 339 bool | |
| 4917 | 340 octave_base_int_matrix<T>::save_hdf5 (hid_t loc_id, const char *name, bool) |
| 4903 | 341 { |
| 4917 | 342 hid_t save_type_hid = HDF5_SAVE_TYPE; |
| 4903 | 343 bool retval = true; |
| 4932 | 344 dim_vector dv = this->dims (); |
| 4903 | 345 int empty = save_hdf5_empty (loc_id, name, dv); |
| 346 if (empty) | |
| 347 return (empty > 0); | |
| 348 | |
| 349 int rank = dv.length (); | |
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350 hid_t space_hid, data_hid; |
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351 space_hid = data_hid = -1; |
| 4903 | 352 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
| 353 | |
| 354 // Octave uses column-major, while HDF5 uses row-major ordering | |
| 355 for (int i = 0; i < rank; i++) | |
| 356 hdims[i] = dv (rank-i-1); | |
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357 |
| 4903 | 358 space_hid = H5Screate_simple (rank, hdims, 0); |
| 359 | |
| 360 if (space_hid < 0) return false; | |
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361 #if HAVE_HDF5_18 |
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362 data_hid = H5Dcreate (loc_id, name, save_type_hid, space_hid, |
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363 H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); |
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364 #else |
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365 data_hid = H5Dcreate (loc_id, name, save_type_hid, space_hid, |
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366 H5P_DEFAULT); |
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367 #endif |
| 4903 | 368 if (data_hid < 0) |
| 369 { | |
| 370 H5Sclose (space_hid); | |
| 371 return false; | |
| 372 } | |
| 373 | |
| 4917 | 374 retval = H5Dwrite (data_hid, save_type_hid, H5S_ALL, H5S_ALL, |
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375 H5P_DEFAULT, this->matrix.data ()) >= 0; |
| 4903 | 376 |
| 377 H5Dclose (data_hid); | |
| 378 H5Sclose (space_hid); | |
| 379 | |
| 380 return retval; | |
| 381 } | |
| 382 | |
| 383 template <class T> | |
| 384 bool | |
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385 octave_base_int_matrix<T>::load_hdf5 (hid_t loc_id, const char *name) |
| 4903 | 386 { |
| 4917 | 387 hid_t save_type_hid = HDF5_SAVE_TYPE; |
| 4903 | 388 bool retval = false; |
| 389 dim_vector dv; | |
| 390 int empty = load_hdf5_empty (loc_id, name, dv); | |
| 391 if (empty > 0) | |
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392 this->matrix.resize (dv); |
| 4903 | 393 if (empty) |
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394 return (empty > 0); |
| 4903 | 395 |
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396 #if HAVE_HDF5_18 |
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397 hid_t data_hid = H5Dopen (loc_id, name, H5P_DEFAULT); |
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398 #else |
| 4903 | 399 hid_t data_hid = H5Dopen (loc_id, name); |
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400 #endif |
| 4903 | 401 hid_t space_id = H5Dget_space (data_hid); |
| 402 | |
| 403 hsize_t rank = H5Sget_simple_extent_ndims (space_id); | |
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404 |
| 4903 | 405 if (rank < 1) |
| 406 { | |
| 407 H5Sclose (space_id); | |
| 408 H5Dclose (data_hid); | |
| 409 return false; | |
| 410 } | |
| 411 | |
| 412 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); | |
| 413 OCTAVE_LOCAL_BUFFER (hsize_t, maxdims, rank); | |
| 414 | |
| 415 H5Sget_simple_extent_dims (space_id, hdims, maxdims); | |
| 416 | |
| 417 // Octave uses column-major, while HDF5 uses row-major ordering | |
| 418 if (rank == 1) | |
| 419 { | |
| 420 dv.resize (2); | |
| 421 dv(0) = 1; | |
| 422 dv(1) = hdims[0]; | |
| 423 } | |
| 424 else | |
| 425 { | |
| 426 dv.resize (rank); | |
| 427 for (hsize_t i = 0, j = rank - 1; i < rank; i++, j--) | |
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428 dv(j) = hdims[i]; |
| 4903 | 429 } |
| 430 | |
| 4917 | 431 T m (dv); |
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432 if (H5Dread (data_hid, save_type_hid, H5S_ALL, H5S_ALL, |
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433 H5P_DEFAULT, m.fortran_vec ()) >= 0) |
| 4903 | 434 { |
| 435 retval = true; | |
| 4932 | 436 this->matrix = m; |
| 4903 | 437 } |
| 438 | |
| 439 H5Sclose (space_id); | |
| 440 H5Dclose (data_hid); | |
| 441 | |
| 442 return retval; | |
| 443 } | |
| 444 | |
| 445 #endif | |
| 446 | |
| 447 template <class T> | |
| 448 void | |
| 449 octave_base_int_matrix<T>::print_raw (std::ostream& os, | |
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450 bool pr_as_read_syntax) const |
| 4903 | 451 { |
| 4932 | 452 octave_print_internal (os, this->matrix, pr_as_read_syntax, |
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453 this->current_print_indent_level ()); |
| 4903 | 454 } |
| 455 | |
| 456 template <class T> | |
| 5992 | 457 octave_value |
| 458 octave_base_int_scalar<T>::convert_to_str_internal (bool, bool, char type) const | |
| 459 { | |
| 460 octave_value retval; | |
| 461 | |
| 462 T tmp = this->scalar; | |
| 463 | |
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464 typedef typename T::val_type val_type; |
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465 |
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466 val_type ival = tmp.value (); |
| 5992 | 467 |
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468 static const bool is_signed = std::numeric_limits<val_type>::is_signed; |
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469 static const bool can_be_larger_than_uchar_max |
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470 = octave_base_int_helper_traits<val_type>::can_be_larger_than_uchar_max; |
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471 |
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472 if (octave_base_int_helper<val_type, is_signed, |
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473 can_be_larger_than_uchar_max>::char_value_out_of_range (ival)) |
| 5992 | 474 { |
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475 // FIXME: is there something better we could do? |
| 5992 | 476 |
| 477 ival = 0; | |
| 478 | |
| 479 ::warning ("range error for conversion to character value"); | |
| 480 } | |
| 481 else | |
| 482 retval = octave_value (std::string (1, static_cast<char> (ival)), type); | |
| 483 | |
| 484 return retval; | |
| 485 } | |
| 486 | |
| 487 template <class T> | |
| 4903 | 488 bool |
| 6974 | 489 octave_base_int_scalar<T>::save_ascii (std::ostream& os) |
| 4903 | 490 { |
| 4932 | 491 os << this->scalar << "\n"; |
| 4903 | 492 return true; |
| 493 } | |
| 494 | |
| 495 template <class T> | |
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496 bool |
| 4903 | 497 octave_base_int_scalar<T>::load_ascii (std::istream& is) |
| 498 { | |
| 4932 | 499 is >> this->scalar; |
| 4903 | 500 if (!is) |
| 501 { | |
| 502 error ("load: failed to load scalar constant"); | |
| 503 return false; | |
| 504 } | |
| 505 return true; | |
| 506 } | |
| 507 | |
| 508 template <class T> | |
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509 bool |
| 4917 | 510 octave_base_int_scalar<T>::save_binary (std::ostream& os, bool&) |
| 4903 | 511 { |
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512 os.write (reinterpret_cast<char *> (&(this->scalar)), this->byte_size ()); |
| 4903 | 513 return true; |
| 514 } | |
| 515 | |
| 516 template <class T> | |
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517 bool |
| 4903 | 518 octave_base_int_scalar<T>::load_binary (std::istream& is, bool swap, |
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519 oct_mach_info::float_format) |
| 4903 | 520 { |
| 4917 | 521 T tmp; |
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522 if (! is.read (reinterpret_cast<char *> (&tmp), this->byte_size ())) |
| 4903 | 523 return false; |
| 524 | |
| 4917 | 525 if (swap) |
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526 switch (this->byte_size ()) |
| 4917 | 527 { |
| 528 case 8: | |
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529 swap_bytes<8> (&tmp); |
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530 break; |
| 4917 | 531 case 4: |
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532 swap_bytes<4> (&tmp); |
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533 break; |
| 4917 | 534 case 2: |
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535 swap_bytes<2> (&tmp); |
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536 break; |
| 4917 | 537 case 1: |
| 538 default: | |
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539 break; |
| 4917 | 540 } |
| 4932 | 541 this->scalar = tmp; |
| 4903 | 542 return true; |
| 543 } | |
| 544 | |
| 545 #if defined (HAVE_HDF5) | |
| 4944 | 546 |
| 4903 | 547 template <class T> |
| 548 bool | |
| 4917 | 549 octave_base_int_scalar<T>::save_hdf5 (hid_t loc_id, const char *name, bool) |
| 4903 | 550 { |
| 4917 | 551 hid_t save_type_hid = HDF5_SAVE_TYPE; |
| 4903 | 552 bool retval = true; |
| 553 hsize_t dimens[3]; | |
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554 hid_t space_hid, data_hid; |
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555 space_hid = data_hid = -1; |
| 4903 | 556 |
| 557 space_hid = H5Screate_simple (0, dimens, 0); | |
| 558 if (space_hid < 0) return false; | |
| 559 | |
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560 #if HAVE_HDF5_18 |
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561 data_hid = H5Dcreate (loc_id, name, save_type_hid, space_hid, |
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562 H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); |
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563 #else |
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564 data_hid = H5Dcreate (loc_id, name, save_type_hid, space_hid, |
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565 H5P_DEFAULT); |
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566 #endif |
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567 if (data_hid < 0) |
| 4903 | 568 { |
| 569 H5Sclose (space_hid); | |
| 570 return false; | |
| 571 } | |
| 572 | |
| 4917 | 573 retval = H5Dwrite (data_hid, save_type_hid, H5S_ALL, H5S_ALL, |
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574 H5P_DEFAULT, &(this->scalar)) >= 0; |
| 4903 | 575 |
| 576 H5Dclose (data_hid); | |
| 577 H5Sclose (space_hid); | |
| 578 | |
| 579 return retval; | |
| 580 } | |
| 581 | |
| 582 template <class T> | |
| 583 bool | |
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584 octave_base_int_scalar<T>::load_hdf5 (hid_t loc_id, const char *name) |
| 4903 | 585 { |
| 4917 | 586 hid_t save_type_hid = HDF5_SAVE_TYPE; |
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587 #if HAVE_HDF5_18 |
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588 hid_t data_hid = H5Dopen (loc_id, name, H5P_DEFAULT); |
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589 #else |
| 4903 | 590 hid_t data_hid = H5Dopen (loc_id, name); |
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591 #endif |
| 4903 | 592 hid_t space_id = H5Dget_space (data_hid); |
| 593 | |
| 594 hsize_t rank = H5Sget_simple_extent_ndims (space_id); | |
| 595 | |
| 596 if (rank != 0) | |
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597 { |
| 4903 | 598 H5Dclose (data_hid); |
| 599 return false; | |
| 600 } | |
| 601 | |
| 4917 | 602 T tmp; |
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603 if (H5Dread (data_hid, save_type_hid, H5S_ALL, H5S_ALL, |
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604 H5P_DEFAULT, &tmp) < 0) |
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605 { |
| 4903 | 606 H5Dclose (data_hid); |
| 607 return false; | |
| 608 } | |
| 609 | |
| 4932 | 610 this->scalar = tmp; |
| 4903 | 611 |
| 612 H5Dclose (data_hid); | |
| 613 | |
| 614 return true; | |
| 615 } | |
| 4944 | 616 |
| 4903 | 617 #endif |