Mercurial > octave-nkf
annotate src/ov-range.cc @ 10160:cd96d29c5efa
remove Emacs local-variable settings from source files in src directory
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 20 Jan 2010 20:39:26 -0500 |
| parents | 672e1b49e01e |
| children | 57a59eae83cc |
| rev | line source |
|---|---|
| 2376 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006, |
| 8920 | 4 2007, 2008 John W. Eaton |
| 2376 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 2376 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 2376 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 3503 | 28 #include <iostream> |
| 2901 | 29 |
| 2376 | 30 #include "lo-ieee.h" |
| 31 #include "lo-utils.h" | |
| 32 | |
| 33 #include "gripes.h" | |
| 34 #include "ops.h" | |
| 3933 | 35 #include "oct-obj.h" |
| 2376 | 36 #include "ov-range.h" |
| 37 #include "ov-re-mat.h" | |
| 2410 | 38 #include "ov-scalar.h" |
| 2376 | 39 #include "pr-output.h" |
| 40 | |
| 4687 | 41 #include "byte-swap.h" |
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42 #include "ls-ascii-helper.h" |
| 4687 | 43 #include "ls-hdf5.h" |
| 44 #include "ls-utils.h" | |
| 45 | |
| 3219 | 46 DEFINE_OCTAVE_ALLOCATOR (octave_range); |
| 2376 | 47 |
| 4612 | 48 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_range, "range", "double"); |
| 2376 | 49 |
| 5759 | 50 static octave_base_value * |
| 51 default_numeric_conversion_function (const octave_base_value& a) | |
| 2376 | 52 { |
| 53 CAST_CONV_ARG (const octave_range&); | |
| 54 | |
| 55 return new octave_matrix (v.matrix_value ()); | |
| 56 } | |
| 57 | |
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58 octave_base_value::type_conv_info |
| 2376 | 59 octave_range::numeric_conversion_function (void) const |
| 60 { | |
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61 return octave_base_value::type_conv_info (default_numeric_conversion_function, |
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62 octave_matrix::static_type_id ()); |
| 2376 | 63 } |
| 64 | |
| 5759 | 65 octave_base_value * |
| 2410 | 66 octave_range::try_narrowing_conversion (void) |
| 67 { | |
| 5759 | 68 octave_base_value *retval = 0; |
| 2410 | 69 |
| 70 switch (range.nelem ()) | |
| 71 { | |
| 72 case 1: | |
| 73 retval = new octave_scalar (range.base ()); | |
| 74 break; | |
| 75 | |
| 76 case 0: | |
| 4417 | 77 retval = new octave_matrix (Matrix (1, 0)); |
| 2410 | 78 break; |
| 79 | |
| 8971 | 80 case -2: |
| 81 retval = new octave_matrix (range.matrix_value ()); | |
| 82 break; | |
| 83 | |
| 2410 | 84 default: |
| 85 break; | |
| 86 } | |
| 87 | |
| 88 return retval; | |
| 89 } | |
| 90 | |
| 2436 | 91 octave_value |
| 4247 | 92 octave_range::subsref (const std::string& type, |
| 4219 | 93 const std::list<octave_value_list>& idx) |
| 3933 | 94 { |
| 95 octave_value retval; | |
| 96 | |
| 97 switch (type[0]) | |
| 98 { | |
| 99 case '(': | |
| 100 retval = do_index_op (idx.front ()); | |
| 101 break; | |
| 102 | |
| 103 case '{': | |
| 104 case '.': | |
| 105 { | |
| 106 std::string nm = type_name (); | |
| 107 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); | |
| 108 } | |
| 109 break; | |
| 110 | |
| 111 default: | |
| 112 panic_impossible (); | |
| 113 } | |
| 114 | |
| 115 return retval.next_subsref (type, idx); | |
| 116 } | |
| 117 | |
| 118 octave_value | |
| 5885 | 119 octave_range::do_index_op (const octave_value_list& idx, bool resize_ok) |
| 2436 | 120 { |
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121 if (idx.length () == 1 && ! resize_ok) |
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122 { |
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123 octave_value retval; |
| 2436 | 124 |
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125 // The range can handle a single subscript. |
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126 idx_vector i = idx(0).index_vector (); |
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127 if (! error_state) |
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128 { |
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129 if (i.is_scalar () && i(0) < range.nelem ()) |
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130 retval = range.elem (i(0)); |
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131 else |
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132 retval = range.index (i); |
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133 } |
| 2436 | 134 |
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135 return retval; |
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136 } |
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137 else |
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138 { |
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139 octave_value tmp (new octave_matrix (range.matrix_value ())); |
| 2436 | 140 |
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141 return tmp.do_index_op (idx, resize_ok); |
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142 } |
| 2436 | 143 } |
| 144 | |
| 2376 | 145 double |
| 146 octave_range::double_value (bool) const | |
| 147 { | |
| 4102 | 148 double retval = lo_ieee_nan_value (); |
| 2376 | 149 |
| 5275 | 150 octave_idx_type nel = range.nelem (); |
| 2376 | 151 |
| 4455 | 152 if (nel > 0) |
| 153 { | |
| 5781 | 154 gripe_implicit_conversion ("Octave:array-as-scalar", |
| 155 "range", "real scalar"); | |
| 4455 | 156 |
| 157 retval = range.base (); | |
| 158 } | |
| 2376 | 159 else |
| 160 gripe_invalid_conversion ("range", "real scalar"); | |
| 161 | |
| 162 return retval; | |
| 163 } | |
| 164 | |
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165 float |
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166 octave_range::float_value (bool) const |
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167 { |
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168 float retval = lo_ieee_float_nan_value (); |
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169 |
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170 octave_idx_type nel = range.nelem (); |
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171 |
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172 if (nel > 0) |
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173 { |
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174 gripe_implicit_conversion ("Octave:array-as-scalar", |
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175 "range", "real scalar"); |
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176 |
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177 retval = range.base (); |
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178 } |
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179 else |
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180 gripe_invalid_conversion ("range", "real scalar"); |
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181 |
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182 return retval; |
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183 } |
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184 |
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185 charNDArray |
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186 octave_range::char_array_value (bool) const |
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187 { |
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188 const Matrix matrix = range.matrix_value (); |
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189 charNDArray retval (dims ()); |
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190 |
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191 octave_idx_type nel = numel (); |
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192 |
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193 for (octave_idx_type i = 0; i < nel; i++) |
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194 retval.elem (i) = static_cast<char>(matrix.elem (i)); |
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195 |
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196 return retval; |
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197 } |
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198 |
| 2376 | 199 octave_value |
| 4017 | 200 octave_range::all (int dim) const |
| 2376 | 201 { |
| 5775 | 202 // FIXME -- this is a potential waste of memory. |
| 2436 | 203 |
| 204 Matrix m = range.matrix_value (); | |
| 205 | |
| 4017 | 206 return m.all (dim); |
| 2376 | 207 } |
| 208 | |
| 209 octave_value | |
| 4017 | 210 octave_range::any (int dim) const |
| 2376 | 211 { |
| 5775 | 212 // FIXME -- this is a potential waste of memory. |
| 4017 | 213 |
| 214 Matrix m = range.matrix_value (); | |
| 215 | |
| 216 return m.any (dim); | |
| 2376 | 217 } |
| 218 | |
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219 octave_value |
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220 octave_range::diag (octave_idx_type k) const |
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221 { |
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222 return (k == 0 |
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223 ? octave_value (DiagMatrix (DiagArray2<double> (range.matrix_value ()))) |
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224 : octave_value (range.diag (k))); |
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225 } |
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226 |
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227 |
| 2376 | 228 bool |
| 229 octave_range::is_true (void) const | |
| 230 { | |
| 231 bool retval = false; | |
| 2436 | 232 |
| 4478 | 233 if (range.nelem () != 0) |
| 2436 | 234 { |
| 5775 | 235 // FIXME -- this is a potential waste of memory. |
| 2436 | 236 |
| 237 Matrix m ((range.matrix_value () . all ()) . all ()); | |
| 238 | |
| 239 retval = (m.rows () == 1 && m.columns () == 1 && m (0, 0) != 0.0); | |
| 240 } | |
| 241 | |
| 2376 | 242 return retval; |
| 243 } | |
| 244 | |
| 245 Complex | |
| 246 octave_range::complex_value (bool) const | |
| 247 { | |
| 4102 | 248 double tmp = lo_ieee_nan_value (); |
| 249 | |
| 250 Complex retval (tmp, tmp); | |
| 2376 | 251 |
| 5275 | 252 octave_idx_type nel = range.nelem (); |
| 2376 | 253 |
| 4455 | 254 if (nel > 0) |
| 255 { | |
| 5781 | 256 gripe_implicit_conversion ("Octave:array-as-scalar", |
| 257 "range", "complex scalar"); | |
| 4455 | 258 |
| 259 retval = range.base (); | |
| 260 } | |
| 2376 | 261 else |
| 262 gripe_invalid_conversion ("range", "complex scalar"); | |
| 263 | |
| 264 return retval; | |
| 265 } | |
| 266 | |
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267 FloatComplex |
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268 octave_range::float_complex_value (bool) const |
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269 { |
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270 float tmp = lo_ieee_float_nan_value (); |
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271 |
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272 FloatComplex retval (tmp, tmp); |
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273 |
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274 octave_idx_type nel = range.nelem (); |
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275 |
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276 if (nel > 0) |
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277 { |
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278 gripe_implicit_conversion ("Octave:array-as-scalar", |
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279 "range", "complex scalar"); |
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280 |
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281 retval = range.base (); |
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282 } |
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283 else |
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284 gripe_invalid_conversion ("range", "complex scalar"); |
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285 |
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286 return retval; |
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287 } |
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288 |
| 5731 | 289 octave_value |
| 290 octave_range::resize (const dim_vector& dv, bool fill) const | |
| 291 { | |
| 292 NDArray retval = array_value (); | |
| 293 if (fill) | |
| 294 retval.resize (dv, NDArray::resize_fill_value()); | |
| 295 else | |
| 296 retval.resize (dv); | |
| 297 return retval; | |
| 298 } | |
| 299 | |
| 2376 | 300 octave_value |
| 5279 | 301 octave_range::convert_to_str_internal (bool pad, bool force, char type) const |
| 2449 | 302 { |
| 303 octave_value tmp (range.matrix_value ()); | |
| 5279 | 304 return tmp.convert_to_str (pad, force, type); |
| 2449 | 305 } |
| 306 | |
| 2376 | 307 void |
| 3523 | 308 octave_range::print (std::ostream& os, bool pr_as_read_syntax) const |
| 2901 | 309 { |
| 310 print_raw (os, pr_as_read_syntax); | |
| 311 newline (os); | |
| 312 } | |
| 313 | |
| 314 void | |
| 3523 | 315 octave_range::print_raw (std::ostream& os, bool pr_as_read_syntax) const |
| 2901 | 316 { |
| 317 octave_print_internal (os, range, pr_as_read_syntax, | |
| 318 current_print_indent_level ()); | |
| 319 } | |
| 320 | |
| 321 bool | |
| 3523 | 322 octave_range::print_name_tag (std::ostream& os, const std::string& name) const |
| 2376 | 323 { |
| 2901 | 324 bool retval = false; |
| 325 | |
| 5275 | 326 octave_idx_type n = range.nelem (); |
| 2901 | 327 |
| 328 indent (os); | |
| 329 | |
| 330 if (n == 0 || n == 1) | |
| 331 os << name << " = "; | |
| 332 else | |
| 333 { | |
| 334 os << name << " ="; | |
| 335 newline (os); | |
| 336 newline (os); | |
| 337 retval = true; | |
| 338 } | |
| 339 | |
| 340 return retval; | |
| 2376 | 341 } |
| 342 | |
| 4687 | 343 // Skip white space and comments on stream IS. |
| 344 | |
| 345 static void | |
| 346 skip_comments (std::istream& is) | |
| 347 { | |
| 348 char c = '\0'; | |
| 349 while (is.get (c)) | |
| 350 { | |
| 351 if (c == ' ' || c == '\t' || c == '\n') | |
| 352 ; // Skip whitespace on way to beginning of next line. | |
| 353 else | |
| 354 break; | |
| 355 } | |
| 356 | |
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357 skip_until_newline (is, false); |
| 4687 | 358 } |
| 359 | |
| 360 bool | |
| 6974 | 361 octave_range::save_ascii (std::ostream& os) |
| 4687 | 362 { |
| 363 Range r = range_value (); | |
| 364 double base = r.base (); | |
| 365 double limit = r.limit (); | |
| 366 double inc = r.inc (); | |
| 367 | |
| 368 os << "# base, limit, increment\n"; | |
| 369 octave_write_double (os, base); | |
| 370 os << " "; | |
| 371 octave_write_double (os, limit); | |
| 372 os << " "; | |
| 373 octave_write_double (os, inc); | |
| 374 os << "\n"; | |
| 375 | |
| 376 return true; | |
| 377 } | |
| 378 | |
| 379 bool | |
| 380 octave_range::load_ascii (std::istream& is) | |
| 381 { | |
| 382 // # base, limit, range comment added by save (). | |
| 383 skip_comments (is); | |
| 384 | |
| 385 is >> range; | |
| 386 | |
| 387 if (!is) | |
| 388 { | |
| 389 error ("load: failed to load range constant"); | |
| 390 return false; | |
| 391 } | |
| 392 | |
| 393 return true; | |
| 394 } | |
| 395 | |
| 396 bool | |
| 397 octave_range::save_binary (std::ostream& os, bool& /* save_as_floats */) | |
| 398 { | |
| 5760 | 399 char tmp = LS_DOUBLE; |
| 400 os.write (reinterpret_cast<char *> (&tmp), 1); | |
| 4687 | 401 Range r = range_value (); |
| 402 double bas = r.base (); | |
| 403 double lim = r.limit (); | |
| 404 double inc = r.inc (); | |
| 5760 | 405 os.write (reinterpret_cast<char *> (&bas), 8); |
| 406 os.write (reinterpret_cast<char *> (&lim), 8); | |
| 407 os.write (reinterpret_cast<char *> (&inc), 8); | |
| 4687 | 408 |
| 409 return true; | |
| 410 } | |
| 411 | |
| 412 bool | |
| 413 octave_range::load_binary (std::istream& is, bool swap, | |
| 414 oct_mach_info::float_format /* fmt */) | |
| 415 { | |
| 416 char tmp; | |
| 5760 | 417 if (! is.read (reinterpret_cast<char *> (&tmp), 1)) |
| 4687 | 418 return false; |
| 419 double bas, lim, inc; | |
| 5760 | 420 if (! is.read (reinterpret_cast<char *> (&bas), 8)) |
| 4687 | 421 return false; |
| 422 if (swap) | |
| 4944 | 423 swap_bytes<8> (&bas); |
| 5760 | 424 if (! is.read (reinterpret_cast<char *> (&lim), 8)) |
| 4687 | 425 return false; |
| 426 if (swap) | |
| 4944 | 427 swap_bytes<8> (&lim); |
| 5760 | 428 if (! is.read (reinterpret_cast<char *> (&inc), 8)) |
| 4687 | 429 return false; |
| 430 if (swap) | |
| 4944 | 431 swap_bytes<8> (&inc); |
| 4687 | 432 Range r (bas, lim, inc); |
| 433 range = r; | |
| 434 return true; | |
| 435 } | |
| 436 | |
| 437 #if defined (HAVE_HDF5) | |
| 4944 | 438 |
| 4687 | 439 // The following subroutines creates an HDF5 representation of the way |
| 440 // we will store Octave range types (triplets of floating-point numbers). | |
| 441 // NUM_TYPE is the HDF5 numeric type to use for storage (e.g. | |
| 442 // H5T_NATIVE_DOUBLE to save as 'double'). Note that any necessary | |
| 443 // conversions are handled automatically by HDF5. | |
| 444 | |
| 445 static hid_t | |
| 446 hdf5_make_range_type (hid_t num_type) | |
| 447 { | |
| 448 hid_t type_id = H5Tcreate (H5T_COMPOUND, sizeof (double) * 3); | |
| 449 | |
| 450 H5Tinsert (type_id, "base", 0 * sizeof (double), num_type); | |
| 451 H5Tinsert (type_id, "limit", 1 * sizeof (double), num_type); | |
| 452 H5Tinsert (type_id, "increment", 2 * sizeof (double), num_type); | |
| 453 | |
| 454 return type_id; | |
| 455 } | |
| 456 | |
| 457 bool | |
| 458 octave_range::save_hdf5 (hid_t loc_id, const char *name, | |
| 459 bool /* save_as_floats */) | |
| 460 { | |
| 4792 | 461 hsize_t dimens[3]; |
| 4687 | 462 hid_t space_hid = -1, type_hid = -1, data_hid = -1; |
| 463 bool retval = true; | |
| 464 | |
| 4815 | 465 space_hid = H5Screate_simple (0, dimens, 0); |
| 4687 | 466 if (space_hid < 0) return false; |
| 467 | |
| 468 type_hid = hdf5_make_range_type (H5T_NATIVE_DOUBLE); | |
| 469 if (type_hid < 0) | |
| 470 { | |
| 471 H5Sclose (space_hid); | |
| 472 return false; | |
| 473 } | |
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474 #if HAVE_HDF5_18 |
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475 data_hid = H5Dcreate (loc_id, name, type_hid, space_hid, |
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476 H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); |
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477 #else |
| 4687 | 478 data_hid = H5Dcreate (loc_id, name, type_hid, space_hid, H5P_DEFAULT); |
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479 #endif |
| 4687 | 480 if (data_hid < 0) |
| 481 { | |
| 482 H5Sclose (space_hid); | |
| 483 H5Tclose (type_hid); | |
| 484 return false; | |
| 485 } | |
| 486 | |
| 487 Range r = range_value (); | |
| 488 double range_vals[3]; | |
| 489 range_vals[0] = r.base (); | |
| 490 range_vals[1] = r.limit (); | |
| 491 range_vals[2] = r.inc (); | |
| 492 | |
| 493 retval = H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, H5P_DEFAULT, | |
| 4815 | 494 range_vals) >= 0; |
| 4687 | 495 |
| 496 H5Dclose (data_hid); | |
| 497 H5Tclose (type_hid); | |
| 498 H5Sclose (space_hid); | |
| 4837 | 499 |
| 4687 | 500 return retval; |
| 501 } | |
| 502 | |
| 503 bool | |
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504 octave_range::load_hdf5 (hid_t loc_id, const char *name) |
| 4687 | 505 { |
| 506 bool retval = false; | |
| 4837 | 507 |
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508 #if HAVE_HDF5_18 |
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509 hid_t data_hid = H5Dopen (loc_id, name, H5P_DEFAULT); |
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510 #else |
| 4687 | 511 hid_t data_hid = H5Dopen (loc_id, name); |
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512 #endif |
| 4687 | 513 hid_t type_hid = H5Dget_type (data_hid); |
| 514 | |
| 515 hid_t range_type = hdf5_make_range_type (H5T_NATIVE_DOUBLE); | |
| 516 | |
| 517 if (! hdf5_types_compatible (type_hid, range_type)) | |
| 518 { | |
| 4837 | 519 H5Tclose (range_type); |
| 4687 | 520 H5Dclose (data_hid); |
| 521 return false; | |
| 522 } | |
| 523 | |
| 524 hid_t space_hid = H5Dget_space (data_hid); | |
| 525 hsize_t rank = H5Sget_simple_extent_ndims (space_hid); | |
| 526 | |
| 527 if (rank != 0) | |
| 528 { | |
| 4837 | 529 H5Tclose (range_type); |
| 4687 | 530 H5Sclose (space_hid); |
| 531 H5Dclose (data_hid); | |
| 532 return false; | |
| 533 } | |
| 534 | |
| 535 double rangevals[3]; | |
| 536 if (H5Dread (data_hid, range_type, H5S_ALL, H5S_ALL, H5P_DEFAULT, | |
| 4815 | 537 rangevals) >= 0) |
| 4687 | 538 { |
| 539 retval = true; | |
| 540 Range r (rangevals[0], rangevals[1], rangevals[2]); | |
| 541 range = r; | |
| 542 } | |
| 543 | |
| 4837 | 544 H5Tclose (range_type); |
| 4687 | 545 H5Sclose (space_hid); |
| 546 H5Dclose (data_hid); | |
| 4837 | 547 |
| 4687 | 548 return retval; |
| 549 } | |
| 4944 | 550 |
| 4687 | 551 #endif |
| 552 | |
| 5900 | 553 mxArray * |
| 554 octave_range::as_mxArray (void) const | |
| 555 { | |
| 556 mxArray *retval = new mxArray (mxDOUBLE_CLASS, dims (), mxREAL); | |
| 557 | |
| 558 double *pr = static_cast<double *> (retval->get_data ()); | |
| 559 | |
| 6686 | 560 mwSize nel = numel (); |
| 5900 | 561 |
| 562 Matrix m = matrix_value (); | |
| 563 | |
| 564 const double *p = m.data (); | |
| 565 | |
| 6686 | 566 for (mwSize i = 0; i < nel; i++) |
| 5900 | 567 pr[i] = p[i]; |
| 568 | |
| 569 return retval; | |
| 570 } |