Mercurial > octave-libgccjit
annotate src/ov-range.cc @ 8345:c777f3ce02d8
smarter conversion lookup
author | Jaroslav Hajek <highegg@gmail.com> |
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date | Tue, 25 Nov 2008 14:04:55 +0100 |
parents | 82be108cc558 |
children | 8b1a2555c4e2 |
rev | line source |
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2376 | 1 /* |
2 | |
7017 | 3 Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006, |
4 2007 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" |
42 #include "ls-hdf5.h" | |
43 #include "ls-utils.h" | |
44 | |
3219 | 45 DEFINE_OCTAVE_ALLOCATOR (octave_range); |
2376 | 46 |
4612 | 47 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_range, "range", "double"); |
2376 | 48 |
5759 | 49 static octave_base_value * |
50 default_numeric_conversion_function (const octave_base_value& a) | |
2376 | 51 { |
52 CAST_CONV_ARG (const octave_range&); | |
53 | |
54 return new octave_matrix (v.matrix_value ()); | |
55 } | |
56 | |
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57 octave_base_value::type_conv_info |
2376 | 58 octave_range::numeric_conversion_function (void) const |
59 { | |
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60 return octave_base_value::type_conv_info (default_numeric_conversion_function, |
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61 octave_matrix::static_type_id ()); |
2376 | 62 } |
63 | |
5759 | 64 octave_base_value * |
2410 | 65 octave_range::try_narrowing_conversion (void) |
66 { | |
5759 | 67 octave_base_value *retval = 0; |
2410 | 68 |
69 switch (range.nelem ()) | |
70 { | |
71 case 1: | |
72 retval = new octave_scalar (range.base ()); | |
73 break; | |
74 | |
75 case 0: | |
4417 | 76 retval = new octave_matrix (Matrix (1, 0)); |
2410 | 77 break; |
78 | |
79 default: | |
80 break; | |
81 } | |
82 | |
83 return retval; | |
84 } | |
85 | |
2436 | 86 octave_value |
4247 | 87 octave_range::subsref (const std::string& type, |
4219 | 88 const std::list<octave_value_list>& idx) |
3933 | 89 { |
90 octave_value retval; | |
91 | |
92 switch (type[0]) | |
93 { | |
94 case '(': | |
95 retval = do_index_op (idx.front ()); | |
96 break; | |
97 | |
98 case '{': | |
99 case '.': | |
100 { | |
101 std::string nm = type_name (); | |
102 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); | |
103 } | |
104 break; | |
105 | |
106 default: | |
107 panic_impossible (); | |
108 } | |
109 | |
110 return retval.next_subsref (type, idx); | |
111 } | |
112 | |
113 octave_value | |
5885 | 114 octave_range::do_index_op (const octave_value_list& idx, bool resize_ok) |
2436 | 115 { |
5775 | 116 // FIXME -- this doesn't solve the problem of |
2436 | 117 // |
118 // a = 1:5; a(1, 1, 1) | |
119 // | |
120 // and similar constructions. Hmm... | |
121 | |
5775 | 122 // FIXME -- using this constructor avoids possibly narrowing |
2436 | 123 // the range to a scalar value. Need a better solution to this |
124 // problem. | |
125 | |
126 octave_value tmp (new octave_matrix (range.matrix_value ())); | |
127 | |
3933 | 128 return tmp.do_index_op (idx, resize_ok); |
2436 | 129 } |
130 | |
2376 | 131 double |
132 octave_range::double_value (bool) const | |
133 { | |
4102 | 134 double retval = lo_ieee_nan_value (); |
2376 | 135 |
5275 | 136 octave_idx_type nel = range.nelem (); |
2376 | 137 |
4455 | 138 if (nel > 0) |
139 { | |
5781 | 140 gripe_implicit_conversion ("Octave:array-as-scalar", |
141 "range", "real scalar"); | |
4455 | 142 |
143 retval = range.base (); | |
144 } | |
2376 | 145 else |
146 gripe_invalid_conversion ("range", "real scalar"); | |
147 | |
148 return retval; | |
149 } | |
150 | |
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151 float |
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152 octave_range::float_value (bool) const |
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153 { |
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154 float retval = lo_ieee_float_nan_value (); |
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155 |
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156 octave_idx_type nel = range.nelem (); |
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157 |
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158 if (nel > 0) |
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159 { |
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160 gripe_implicit_conversion ("Octave:array-as-scalar", |
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161 "range", "real scalar"); |
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162 |
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163 retval = range.base (); |
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164 } |
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165 else |
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166 gripe_invalid_conversion ("range", "real scalar"); |
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167 |
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168 return retval; |
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169 } |
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170 |
2376 | 171 octave_value |
4017 | 172 octave_range::all (int dim) const |
2376 | 173 { |
5775 | 174 // FIXME -- this is a potential waste of memory. |
2436 | 175 |
176 Matrix m = range.matrix_value (); | |
177 | |
4017 | 178 return m.all (dim); |
2376 | 179 } |
180 | |
181 octave_value | |
4017 | 182 octave_range::any (int dim) const |
2376 | 183 { |
5775 | 184 // FIXME -- this is a potential waste of memory. |
4017 | 185 |
186 Matrix m = range.matrix_value (); | |
187 | |
188 return m.any (dim); | |
2376 | 189 } |
190 | |
191 bool | |
192 octave_range::is_true (void) const | |
193 { | |
194 bool retval = false; | |
2436 | 195 |
4478 | 196 if (range.nelem () != 0) |
2436 | 197 { |
5775 | 198 // FIXME -- this is a potential waste of memory. |
2436 | 199 |
200 Matrix m ((range.matrix_value () . all ()) . all ()); | |
201 | |
202 retval = (m.rows () == 1 && m.columns () == 1 && m (0, 0) != 0.0); | |
203 } | |
204 | |
2376 | 205 return retval; |
206 } | |
207 | |
208 Complex | |
209 octave_range::complex_value (bool) const | |
210 { | |
4102 | 211 double tmp = lo_ieee_nan_value (); |
212 | |
213 Complex retval (tmp, tmp); | |
2376 | 214 |
5275 | 215 octave_idx_type nel = range.nelem (); |
2376 | 216 |
4455 | 217 if (nel > 0) |
218 { | |
5781 | 219 gripe_implicit_conversion ("Octave:array-as-scalar", |
220 "range", "complex scalar"); | |
4455 | 221 |
222 retval = range.base (); | |
223 } | |
2376 | 224 else |
225 gripe_invalid_conversion ("range", "complex scalar"); | |
226 | |
227 return retval; | |
228 } | |
229 | |
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230 FloatComplex |
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231 octave_range::float_complex_value (bool) const |
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232 { |
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233 float tmp = lo_ieee_float_nan_value (); |
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234 |
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235 FloatComplex retval (tmp, tmp); |
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236 |
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237 octave_idx_type nel = range.nelem (); |
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238 |
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239 if (nel > 0) |
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240 { |
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241 gripe_implicit_conversion ("Octave:array-as-scalar", |
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242 "range", "complex scalar"); |
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243 |
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244 retval = range.base (); |
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245 } |
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246 else |
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247 gripe_invalid_conversion ("range", "complex scalar"); |
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248 |
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249 return retval; |
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250 } |
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251 |
5731 | 252 octave_value |
253 octave_range::resize (const dim_vector& dv, bool fill) const | |
254 { | |
255 NDArray retval = array_value (); | |
256 if (fill) | |
257 retval.resize (dv, NDArray::resize_fill_value()); | |
258 else | |
259 retval.resize (dv); | |
260 return retval; | |
261 } | |
262 | |
2376 | 263 octave_value |
5279 | 264 octave_range::convert_to_str_internal (bool pad, bool force, char type) const |
2449 | 265 { |
266 octave_value tmp (range.matrix_value ()); | |
5279 | 267 return tmp.convert_to_str (pad, force, type); |
2449 | 268 } |
269 | |
2376 | 270 void |
3523 | 271 octave_range::print (std::ostream& os, bool pr_as_read_syntax) const |
2901 | 272 { |
273 print_raw (os, pr_as_read_syntax); | |
274 newline (os); | |
275 } | |
276 | |
277 void | |
3523 | 278 octave_range::print_raw (std::ostream& os, bool pr_as_read_syntax) const |
2901 | 279 { |
280 octave_print_internal (os, range, pr_as_read_syntax, | |
281 current_print_indent_level ()); | |
282 } | |
283 | |
284 bool | |
3523 | 285 octave_range::print_name_tag (std::ostream& os, const std::string& name) const |
2376 | 286 { |
2901 | 287 bool retval = false; |
288 | |
5275 | 289 octave_idx_type n = range.nelem (); |
2901 | 290 |
291 indent (os); | |
292 | |
293 if (n == 0 || n == 1) | |
294 os << name << " = "; | |
295 else | |
296 { | |
297 os << name << " ="; | |
298 newline (os); | |
299 newline (os); | |
300 retval = true; | |
301 } | |
302 | |
303 return retval; | |
2376 | 304 } |
305 | |
4687 | 306 // Skip white space and comments on stream IS. |
307 | |
308 static void | |
309 skip_comments (std::istream& is) | |
310 { | |
311 char c = '\0'; | |
312 while (is.get (c)) | |
313 { | |
314 if (c == ' ' || c == '\t' || c == '\n') | |
315 ; // Skip whitespace on way to beginning of next line. | |
316 else | |
317 break; | |
318 } | |
319 | |
320 for (;;) | |
321 { | |
322 if (is && (c == '%' || c == '#')) | |
323 while (is.get (c) && c != '\n') | |
324 ; // Skip to beginning of next line, ignoring everything. | |
325 else | |
326 break; | |
327 } | |
328 } | |
329 | |
330 bool | |
6974 | 331 octave_range::save_ascii (std::ostream& os) |
4687 | 332 { |
333 Range r = range_value (); | |
334 double base = r.base (); | |
335 double limit = r.limit (); | |
336 double inc = r.inc (); | |
337 | |
338 os << "# base, limit, increment\n"; | |
339 octave_write_double (os, base); | |
340 os << " "; | |
341 octave_write_double (os, limit); | |
342 os << " "; | |
343 octave_write_double (os, inc); | |
344 os << "\n"; | |
345 | |
346 return true; | |
347 } | |
348 | |
349 bool | |
350 octave_range::load_ascii (std::istream& is) | |
351 { | |
352 // # base, limit, range comment added by save (). | |
353 skip_comments (is); | |
354 | |
355 is >> range; | |
356 | |
357 if (!is) | |
358 { | |
359 error ("load: failed to load range constant"); | |
360 return false; | |
361 } | |
362 | |
363 return true; | |
364 } | |
365 | |
366 bool | |
367 octave_range::save_binary (std::ostream& os, bool& /* save_as_floats */) | |
368 { | |
5760 | 369 char tmp = LS_DOUBLE; |
370 os.write (reinterpret_cast<char *> (&tmp), 1); | |
4687 | 371 Range r = range_value (); |
372 double bas = r.base (); | |
373 double lim = r.limit (); | |
374 double inc = r.inc (); | |
5760 | 375 os.write (reinterpret_cast<char *> (&bas), 8); |
376 os.write (reinterpret_cast<char *> (&lim), 8); | |
377 os.write (reinterpret_cast<char *> (&inc), 8); | |
4687 | 378 |
379 return true; | |
380 } | |
381 | |
382 bool | |
383 octave_range::load_binary (std::istream& is, bool swap, | |
384 oct_mach_info::float_format /* fmt */) | |
385 { | |
386 char tmp; | |
5760 | 387 if (! is.read (reinterpret_cast<char *> (&tmp), 1)) |
4687 | 388 return false; |
389 double bas, lim, inc; | |
5760 | 390 if (! is.read (reinterpret_cast<char *> (&bas), 8)) |
4687 | 391 return false; |
392 if (swap) | |
4944 | 393 swap_bytes<8> (&bas); |
5760 | 394 if (! is.read (reinterpret_cast<char *> (&lim), 8)) |
4687 | 395 return false; |
396 if (swap) | |
4944 | 397 swap_bytes<8> (&lim); |
5760 | 398 if (! is.read (reinterpret_cast<char *> (&inc), 8)) |
4687 | 399 return false; |
400 if (swap) | |
4944 | 401 swap_bytes<8> (&inc); |
4687 | 402 Range r (bas, lim, inc); |
403 range = r; | |
404 return true; | |
405 } | |
406 | |
407 #if defined (HAVE_HDF5) | |
4944 | 408 |
4687 | 409 // The following subroutines creates an HDF5 representation of the way |
410 // we will store Octave range types (triplets of floating-point numbers). | |
411 // NUM_TYPE is the HDF5 numeric type to use for storage (e.g. | |
412 // H5T_NATIVE_DOUBLE to save as 'double'). Note that any necessary | |
413 // conversions are handled automatically by HDF5. | |
414 | |
415 static hid_t | |
416 hdf5_make_range_type (hid_t num_type) | |
417 { | |
418 hid_t type_id = H5Tcreate (H5T_COMPOUND, sizeof (double) * 3); | |
419 | |
420 H5Tinsert (type_id, "base", 0 * sizeof (double), num_type); | |
421 H5Tinsert (type_id, "limit", 1 * sizeof (double), num_type); | |
422 H5Tinsert (type_id, "increment", 2 * sizeof (double), num_type); | |
423 | |
424 return type_id; | |
425 } | |
426 | |
427 bool | |
428 octave_range::save_hdf5 (hid_t loc_id, const char *name, | |
429 bool /* save_as_floats */) | |
430 { | |
4792 | 431 hsize_t dimens[3]; |
4687 | 432 hid_t space_hid = -1, type_hid = -1, data_hid = -1; |
433 bool retval = true; | |
434 | |
4815 | 435 space_hid = H5Screate_simple (0, dimens, 0); |
4687 | 436 if (space_hid < 0) return false; |
437 | |
438 type_hid = hdf5_make_range_type (H5T_NATIVE_DOUBLE); | |
439 if (type_hid < 0) | |
440 { | |
441 H5Sclose (space_hid); | |
442 return false; | |
443 } | |
444 | |
445 data_hid = H5Dcreate (loc_id, name, type_hid, space_hid, H5P_DEFAULT); | |
446 if (data_hid < 0) | |
447 { | |
448 H5Sclose (space_hid); | |
449 H5Tclose (type_hid); | |
450 return false; | |
451 } | |
452 | |
453 Range r = range_value (); | |
454 double range_vals[3]; | |
455 range_vals[0] = r.base (); | |
456 range_vals[1] = r.limit (); | |
457 range_vals[2] = r.inc (); | |
458 | |
459 retval = H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, H5P_DEFAULT, | |
4815 | 460 range_vals) >= 0; |
4687 | 461 |
462 H5Dclose (data_hid); | |
463 H5Tclose (type_hid); | |
464 H5Sclose (space_hid); | |
4837 | 465 |
4687 | 466 return retval; |
467 } | |
468 | |
469 bool | |
470 octave_range::load_hdf5 (hid_t loc_id, const char *name, | |
471 bool /* have_h5giterate_bug */) | |
472 { | |
473 bool retval = false; | |
4837 | 474 |
4687 | 475 hid_t data_hid = H5Dopen (loc_id, name); |
476 hid_t type_hid = H5Dget_type (data_hid); | |
477 | |
478 hid_t range_type = hdf5_make_range_type (H5T_NATIVE_DOUBLE); | |
479 | |
480 if (! hdf5_types_compatible (type_hid, range_type)) | |
481 { | |
4837 | 482 H5Tclose (range_type); |
4687 | 483 H5Dclose (data_hid); |
484 return false; | |
485 } | |
486 | |
487 hid_t space_hid = H5Dget_space (data_hid); | |
488 hsize_t rank = H5Sget_simple_extent_ndims (space_hid); | |
489 | |
490 if (rank != 0) | |
491 { | |
4837 | 492 H5Tclose (range_type); |
4687 | 493 H5Sclose (space_hid); |
494 H5Dclose (data_hid); | |
495 return false; | |
496 } | |
497 | |
498 double rangevals[3]; | |
499 if (H5Dread (data_hid, range_type, H5S_ALL, H5S_ALL, H5P_DEFAULT, | |
4815 | 500 rangevals) >= 0) |
4687 | 501 { |
502 retval = true; | |
503 Range r (rangevals[0], rangevals[1], rangevals[2]); | |
504 range = r; | |
505 } | |
506 | |
4837 | 507 H5Tclose (range_type); |
4687 | 508 H5Sclose (space_hid); |
509 H5Dclose (data_hid); | |
4837 | 510 |
4687 | 511 return retval; |
512 } | |
4944 | 513 |
4687 | 514 #endif |
515 | |
5900 | 516 mxArray * |
517 octave_range::as_mxArray (void) const | |
518 { | |
519 mxArray *retval = new mxArray (mxDOUBLE_CLASS, dims (), mxREAL); | |
520 | |
521 double *pr = static_cast<double *> (retval->get_data ()); | |
522 | |
6686 | 523 mwSize nel = numel (); |
5900 | 524 |
525 Matrix m = matrix_value (); | |
526 | |
527 const double *p = m.data (); | |
528 | |
6686 | 529 for (mwSize i = 0; i < nel; i++) |
5900 | 530 pr[i] = p[i]; |
531 | |
532 return retval; | |
533 } | |
534 | |
2376 | 535 /* |
536 ;;; Local Variables: *** | |
537 ;;; mode: C++ *** | |
538 ;;; End: *** | |
539 */ |