Mercurial > hg > octave-nkf
annotate liboctave/data-conv.cc @ 7893:eb9ccb44ea41
make regexp(...,'once') matlab compatible
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Wed, 18 Jun 2008 21:00:06 +0200 |
| parents | 82be108cc558 |
| children | 139f47cf17ab |
| rev | line source |
|---|---|
| 1960 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, |
| 4 2006, 2007 John W. Eaton | |
| 1960 | 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. | |
| 1960 | 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/>. | |
| 1960 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 2317 | 28 #include <cctype> |
| 6482 | 29 #include <cstdlib> |
| 2317 | 30 |
| 3503 | 31 #include <iostream> |
| 5760 | 32 #include <vector> |
| 1960 | 33 |
| 34 #include "byte-swap.h" | |
| 35 #include "data-conv.h" | |
| 36 #include "lo-error.h" | |
| 37 | |
| 5892 | 38 template void swap_bytes<2> (volatile void *, int); |
| 39 template void swap_bytes<4> (volatile void *, int); | |
| 40 template void swap_bytes<8> (volatile void *, int); | |
| 41 | |
| 4944 | 42 #if defined HAVE_LONG_LONG_INT |
| 43 #define FIND_SIZED_INT_TYPE(VAL, BITS, TQ, Q) \ | |
| 44 do \ | |
| 45 { \ | |
| 46 int sz = BITS / CHAR_BIT; \ | |
| 47 if (sizeof (TQ char) == sz) \ | |
| 48 VAL = oct_data_conv::dt_ ## Q ## char; \ | |
| 49 else if (sizeof (TQ short) == sz) \ | |
| 50 VAL = oct_data_conv::dt_ ## Q ## short; \ | |
| 51 else if (sizeof (TQ int) == sz) \ | |
| 52 VAL = oct_data_conv::dt_ ## Q ## int; \ | |
| 53 else if (sizeof (TQ long) == sz) \ | |
| 54 VAL = oct_data_conv::dt_ ## Q ## long; \ | |
| 55 else if (sizeof (TQ long long) == sz) \ | |
| 56 VAL = oct_data_conv::dt_ ## Q ## longlong; \ | |
| 57 else \ | |
| 58 VAL = oct_data_conv::dt_unknown; \ | |
| 59 } \ | |
| 60 while (0) | |
| 61 #else | |
| 3359 | 62 #define FIND_SIZED_INT_TYPE(VAL, BITS, TQ, Q) \ |
| 3358 | 63 do \ |
| 64 { \ | |
| 65 int sz = BITS / CHAR_BIT; \ | |
| 66 if (sizeof (TQ char) == sz) \ | |
| 67 VAL = oct_data_conv::dt_ ## Q ## char; \ | |
| 68 else if (sizeof (TQ short) == sz) \ | |
| 69 VAL = oct_data_conv::dt_ ## Q ## short; \ | |
| 70 else if (sizeof (TQ int) == sz) \ | |
| 71 VAL = oct_data_conv::dt_ ## Q ## int; \ | |
| 72 else if (sizeof (TQ long) == sz) \ | |
| 73 VAL = oct_data_conv::dt_ ## Q ## long; \ | |
| 74 else \ | |
| 75 VAL = oct_data_conv::dt_unknown; \ | |
| 76 } \ | |
| 77 while (0) | |
| 4944 | 78 #endif |
| 3358 | 79 |
| 3359 | 80 #define FIND_SIZED_FLOAT_TYPE(VAL, BITS) \ |
| 3358 | 81 do \ |
| 82 { \ | |
| 83 int sz = BITS / CHAR_BIT; \ | |
| 84 if (sizeof (float) == sz) \ | |
| 85 VAL = oct_data_conv::dt_float; \ | |
| 86 else if (sizeof (double) == sz) \ | |
| 87 VAL = oct_data_conv::dt_double; \ | |
| 88 else \ | |
| 89 VAL = oct_data_conv::dt_unknown; \ | |
| 90 } \ | |
| 91 while (0) | |
| 92 | |
| 93 // I'm not sure it is worth the trouble, but let's use a lookup table | |
| 94 // for the types that are supposed to be a specific number of bits | |
| 95 // wide. Given the macros above, this should work as long as CHAR_BIT | |
| 96 // is a multiple of 8 and there are types with the right sizes. | |
| 97 // | |
| 98 // The sized data type lookup table has the following format: | |
| 99 // | |
| 100 // bits | |
| 101 // +----+----+----+----+ | |
| 102 // | 8 | 16 | 32 | 64 | | |
| 103 // +----+----+----+----+ | |
| 104 // signed integer | | | | | | |
| 105 // +----+----+----+----+ | |
| 106 // unsigned integer | | | | | | |
| 107 // +----+----+----+----+ | |
| 108 // floating point | | | | | | |
| 109 // +----+----+----+----+ | |
| 110 // | |
| 111 // So, the 0,3 element is supposed to contain the oct_data_conv enum | |
| 112 // value corresponding to the correct native data type for a signed | |
| 113 // 32-bit integer. | |
| 114 | |
| 115 static void | |
| 116 init_sized_type_lookup_table (oct_data_conv::data_type table[3][4]) | |
| 117 { | |
| 118 int bits = 8; | |
| 119 | |
| 120 for (int i = 0; i < 4; i++) | |
| 121 { | |
| 3359 | 122 FIND_SIZED_INT_TYPE (table[0][i], bits, , ); |
| 3358 | 123 |
| 3359 | 124 FIND_SIZED_INT_TYPE (table[1][i], bits, unsigned, u); |
| 3358 | 125 |
| 3359 | 126 FIND_SIZED_FLOAT_TYPE (table[2][i], bits); |
| 3358 | 127 |
| 128 bits *= 2; | |
| 129 } | |
| 130 } | |
| 131 | |
| 4944 | 132 static std::string |
| 133 strip_spaces (const std::string& str) | |
| 134 { | |
| 135 int n = str.length (); | |
| 136 | |
| 137 int k = 0; | |
| 138 | |
| 139 std::string s (n, ' '); | |
| 140 | |
| 141 for (int i = 0; i < n; i++) | |
| 142 if (! isspace (str[i])) | |
| 143 s[k++] = tolower (str[i]); | |
| 144 | |
| 145 s.resize (k); | |
| 146 | |
| 147 return s; | |
| 148 } | |
| 149 | |
| 150 #define GET_SIZED_INT_TYPE(T, U) \ | |
| 151 do \ | |
| 152 { \ | |
| 153 switch (sizeof (T)) \ | |
| 154 { \ | |
| 155 case 1: \ | |
| 156 retval = dt_ ## U ## int8; \ | |
| 157 break; \ | |
| 158 \ | |
| 159 case 2: \ | |
| 160 retval = dt_ ## U ## int16; \ | |
| 161 break; \ | |
| 162 \ | |
| 163 case 4: \ | |
| 164 retval = dt_ ## U ## int32; \ | |
| 165 break; \ | |
| 166 \ | |
| 167 case 8: \ | |
| 168 retval = dt_ ## U ## int64; \ | |
| 169 break; \ | |
| 170 \ | |
| 171 default: \ | |
| 172 retval = dt_unknown; \ | |
| 173 break; \ | |
| 174 } \ | |
| 175 } \ | |
| 176 while (0) | |
| 177 | |
| 2317 | 178 oct_data_conv::data_type |
| 3504 | 179 oct_data_conv::string_to_data_type (const std::string& str) |
| 2317 | 180 { |
| 181 data_type retval = dt_unknown; | |
| 182 | |
| 3358 | 183 static bool initialized = false; |
| 184 | |
| 185 static data_type sized_type_table[3][4]; | |
| 2317 | 186 |
| 3358 | 187 if (! initialized) |
| 188 { | |
| 189 init_sized_type_lookup_table (sized_type_table); | |
| 190 | |
| 191 initialized = true; | |
| 192 } | |
| 193 | |
| 4944 | 194 std::string s = strip_spaces (str); |
| 2317 | 195 |
| 4944 | 196 if (s == "int8" || s == "integer*1") |
| 197 retval = dt_int8; | |
| 198 else if (s == "uint8") | |
| 199 retval = dt_uint8; | |
| 200 else if (s == "int16" || s == "integer*2") | |
| 201 retval = dt_int16; | |
| 202 else if (s == "uint16") | |
| 203 retval = dt_uint16; | |
| 204 else if (s == "int32" || s == "integer*4") | |
| 205 retval = dt_int32; | |
| 206 else if (s == "uint32") | |
| 207 retval = dt_uint32; | |
| 208 else if (s == "int64" || s == "integer*8") | |
| 209 retval = dt_int64; | |
| 210 else if (s == "uint64") | |
| 211 retval = dt_uint64; | |
| 212 else if (s == "single" || s == "float32" || s == "real*4") | |
| 213 retval = dt_single; | |
| 214 else if (s == "double" || s == "float64" || s == "real*8") | |
| 215 retval = dt_double; | |
| 216 else if (s == "char" || s == "char*1") | |
| 2317 | 217 retval = dt_char; |
| 218 else if (s == "schar" || s == "signedchar") | |
| 219 retval = dt_schar; | |
| 220 else if (s == "uchar" || s == "unsignedchar") | |
| 221 retval = dt_uchar; | |
| 222 else if (s == "short") | |
| 4944 | 223 GET_SIZED_INT_TYPE (short, ); |
| 2317 | 224 else if (s == "ushort" || s == "unsignedshort") |
| 4944 | 225 GET_SIZED_INT_TYPE (unsigned short, u); |
| 2317 | 226 else if (s == "int") |
| 4944 | 227 GET_SIZED_INT_TYPE (int, ); |
| 2317 | 228 else if (s == "uint" || s == "unsignedint") |
| 4944 | 229 GET_SIZED_INT_TYPE (unsigned int, u); |
| 2317 | 230 else if (s == "long") |
| 4944 | 231 GET_SIZED_INT_TYPE (long, ); |
| 2317 | 232 else if (s == "ulong" || s == "unsignedlong") |
| 4944 | 233 GET_SIZED_INT_TYPE (unsigned long, u); |
| 234 else if (s == "longlong") | |
| 235 GET_SIZED_INT_TYPE (long long, ); | |
| 236 else if (s == "ulonglong" || s == "unsignedlonglong") | |
| 237 GET_SIZED_INT_TYPE (unsigned long long, u); | |
| 3358 | 238 else if (s == "float") |
| 4944 | 239 { |
| 240 if (sizeof (float) == sizeof (double)) | |
| 241 retval = dt_double; | |
| 242 else | |
| 243 retval = dt_single; | |
| 244 } | |
| 4970 | 245 else if (s == "logical") |
| 246 retval = dt_logical; | |
| 2317 | 247 else |
| 248 (*current_liboctave_error_handler) ("invalid data type specified"); | |
| 249 | |
| 3358 | 250 if (retval == dt_unknown) |
| 251 (*current_liboctave_error_handler) | |
| 252 ("unable to find matching native data type for %s", s.c_str ()); | |
| 253 | |
| 2317 | 254 return retval; |
| 255 } | |
| 256 | |
| 4944 | 257 void |
| 258 oct_data_conv::string_to_data_type | |
| 259 (const std::string& str, int& block_size, | |
| 260 oct_data_conv::data_type& input_type, | |
| 261 oct_data_conv::data_type& output_type) | |
| 262 { | |
| 263 block_size = 1; | |
| 264 input_type = dt_uchar; | |
| 265 output_type = dt_double; | |
| 266 | |
| 267 bool input_is_output = false; | |
| 268 | |
| 269 std::string s = strip_spaces (str); | |
| 270 | |
| 271 size_t pos = 0; | |
| 272 | |
| 273 if (s[0] == '*') | |
| 274 input_is_output = true; | |
| 275 else | |
| 276 { | |
| 277 size_t len = s.length (); | |
| 278 | |
| 279 while (pos < len && isdigit (s[pos])) | |
| 280 pos++; | |
| 281 | |
| 282 if (pos > 0) | |
| 283 { | |
| 284 if (s[pos] == '*') | |
| 285 { | |
| 286 block_size = atoi (s.c_str ()); | |
| 287 s = s.substr (pos+1); | |
| 288 } | |
| 289 else | |
| 290 { | |
| 291 (*current_liboctave_error_handler) | |
| 292 ("invalid repeat count in `%s'", str.c_str ()); | |
| 293 | |
| 294 return; | |
| 295 } | |
| 296 } | |
| 297 } | |
| 298 | |
| 299 pos = s.find ('='); | |
| 300 | |
| 301 if (pos != std::string::npos) | |
| 302 { | |
| 303 if (s[pos+1] == '>') | |
| 304 { | |
| 5870 | 305 std::string s1; |
| 306 | |
| 4944 | 307 if (input_is_output) |
| 308 { | |
| 309 input_is_output = false; | |
| 310 | |
| 5870 | 311 s1 = s.substr (1, pos-1); |
| 312 | |
| 4944 | 313 (*current_liboctave_warning_handler) |
| 314 ("warning: ignoring leading * in fread precision"); | |
| 315 } | |
| 5870 | 316 else |
| 317 s1 = s.substr (0, pos); | |
| 4944 | 318 |
| 5870 | 319 input_type = string_to_data_type (s1); |
| 4944 | 320 output_type = string_to_data_type (s.substr (pos+2)); |
| 321 } | |
| 322 else | |
| 323 (*current_liboctave_error_handler) | |
| 324 ("fread: invalid precision specified"); | |
| 325 } | |
| 326 else | |
| 327 { | |
| 5870 | 328 if (input_is_output) |
| 329 s = s.substr (1); | |
| 330 | |
| 4944 | 331 input_type = string_to_data_type (s); |
| 332 | |
| 333 if (input_is_output) | |
| 334 output_type = input_type; | |
| 335 } | |
| 336 } | |
| 337 | |
| 338 void | |
| 339 oct_data_conv::string_to_data_type | |
| 340 (const std::string& str, int& block_size, | |
| 341 oct_data_conv::data_type& output_type) | |
| 342 { | |
| 343 block_size = 1; | |
| 344 output_type = dt_double; | |
| 345 | |
| 346 std::string s = strip_spaces (str); | |
| 347 | |
| 348 size_t pos = 0; | |
| 349 | |
| 350 size_t len = s.length (); | |
| 351 | |
| 352 while (pos < len && isdigit (s[pos])) | |
| 353 pos++; | |
| 354 | |
| 355 if (pos > 0) | |
| 356 { | |
| 357 if (s[pos] == '*') | |
| 358 { | |
| 359 block_size = atoi (s.c_str ()); | |
| 360 s = s.substr (pos+1); | |
| 361 } | |
| 362 else | |
| 363 { | |
| 364 (*current_liboctave_error_handler) | |
| 365 ("invalid repeat count in `%s'", str.c_str ()); | |
| 366 | |
| 367 return; | |
| 368 } | |
| 369 } | |
| 370 | |
| 371 output_type = string_to_data_type (s); | |
| 372 } | |
| 373 | |
| 374 std::string | |
| 375 oct_data_conv::data_type_as_string (oct_data_conv::data_type dt) | |
| 376 { | |
| 377 std::string retval; | |
| 378 | |
| 379 switch (dt) | |
| 380 { | |
| 381 case oct_data_conv::dt_int8: | |
| 382 retval = "int8"; | |
| 383 break; | |
| 384 | |
| 385 case oct_data_conv::dt_uint8: | |
| 386 retval = "uint8"; | |
| 387 break; | |
| 388 | |
| 389 case oct_data_conv::dt_int16: | |
| 390 retval = "int16"; | |
| 391 break; | |
| 392 | |
| 393 case oct_data_conv::dt_uint16: | |
| 394 retval = "uint16"; | |
| 395 break; | |
| 396 | |
| 397 case oct_data_conv::dt_int32: | |
| 398 retval = "int32"; | |
| 399 break; | |
| 400 | |
| 401 case oct_data_conv::dt_uint32: | |
| 402 retval = "uint32"; | |
| 403 break; | |
| 404 | |
| 405 case oct_data_conv::dt_int64: | |
| 406 retval = "int64"; | |
| 407 break; | |
| 408 | |
| 409 case oct_data_conv::dt_uint64: | |
| 410 retval = "uint64"; | |
| 411 break; | |
| 412 | |
| 413 case oct_data_conv::dt_single: | |
| 414 retval = "single"; | |
| 415 break; | |
| 416 | |
| 417 case oct_data_conv::dt_double: | |
| 418 retval = "double"; | |
| 419 break; | |
| 420 | |
| 421 case oct_data_conv::dt_char: | |
| 422 retval = "char"; | |
| 423 break; | |
| 424 | |
| 425 case oct_data_conv::dt_schar: | |
| 426 retval = "signed char"; | |
| 427 break; | |
| 428 | |
| 429 case oct_data_conv::dt_uchar: | |
| 430 retval = "usigned char"; | |
| 431 break; | |
| 432 | |
| 433 case oct_data_conv::dt_short: | |
| 434 retval = "short"; | |
| 435 break; | |
| 436 | |
| 437 case oct_data_conv::dt_ushort: | |
| 438 retval = "unsigned short"; | |
| 439 break; | |
| 440 | |
| 441 case oct_data_conv::dt_int: | |
| 442 retval = "int"; | |
| 443 break; | |
| 444 | |
| 445 case oct_data_conv::dt_uint: | |
| 446 retval = "usigned int"; | |
| 447 break; | |
| 448 | |
| 449 case oct_data_conv::dt_long: | |
| 450 retval = "long"; | |
| 451 break; | |
| 452 | |
| 453 case oct_data_conv::dt_ulong: | |
| 454 retval = "usigned long"; | |
| 455 break; | |
| 456 | |
| 457 case oct_data_conv::dt_longlong: | |
| 458 retval = "long long"; | |
| 459 break; | |
| 460 | |
| 461 case oct_data_conv::dt_ulonglong: | |
| 462 retval = "unsigned long long"; | |
| 463 break; | |
| 464 | |
| 465 case oct_data_conv::dt_float: | |
| 466 retval = "float"; | |
| 467 break; | |
| 468 | |
| 4970 | 469 case oct_data_conv::dt_logical: |
| 470 retval = "logical"; | |
| 471 break; | |
| 472 | |
| 4944 | 473 case oct_data_conv::dt_unknown: |
| 474 default: | |
| 475 retval = "unknown"; | |
| 476 break; | |
| 477 } | |
| 478 | |
| 479 return retval; | |
| 480 } | |
| 1960 | 481 |
| 3359 | 482 #define LS_DO_READ(TYPE, swap, data, size, len, stream) \ |
| 1960 | 483 do \ |
| 484 { \ | |
| 3867 | 485 if (len > 0) \ |
| 486 { \ | |
| 5760 | 487 OCTAVE_LOCAL_BUFFER (TYPE, ptr, len); \ |
| 488 stream.read (reinterpret_cast<char *> (ptr), size * len); \ | |
| 3867 | 489 if (swap) \ |
| 4944 | 490 swap_bytes< size > (ptr, len); \ |
| 5760 | 491 for (int i = 0; i < len; i++) \ |
| 3867 | 492 data[i] = ptr[i]; \ |
| 493 } \ | |
| 1960 | 494 } \ |
| 495 while (0) | |
| 496 | |
| 497 // Have to use copy here to avoid writing over data accessed via | |
| 498 // Matrix::data(). | |
| 499 | |
| 3359 | 500 #define LS_DO_WRITE(TYPE, data, size, len, stream) \ |
| 1960 | 501 do \ |
| 502 { \ | |
| 3867 | 503 if (len > 0) \ |
| 504 { \ | |
| 5760 | 505 char tmp_type = type; \ |
| 3867 | 506 stream.write (&tmp_type, 1); \ |
| 5760 | 507 OCTAVE_LOCAL_BUFFER (TYPE, ptr, len); \ |
| 3867 | 508 for (int i = 0; i < len; i++) \ |
| 5760 | 509 ptr[i] = static_cast <TYPE> (data[i]); \ |
| 510 stream.write (reinterpret_cast<char *> (ptr), size * len); \ | |
| 3867 | 511 } \ |
| 1960 | 512 } \ |
| 513 while (0) | |
| 514 | |
| 515 // Loading variables from files. | |
| 516 | |
| 517 static void | |
| 518 gripe_unrecognized_float_fmt (void) | |
| 519 { | |
| 520 (*current_liboctave_error_handler) | |
| 521 ("unrecognized floating point format requested"); | |
| 522 } | |
| 523 | |
| 524 static void | |
| 525 gripe_data_conversion (const char *from, const char *to) | |
| 526 { | |
| 527 (*current_liboctave_error_handler) | |
| 528 ("unable to convert from %s to %s format", from, to); | |
| 529 } | |
| 530 | |
| 531 // But first, some data conversion routines. | |
| 532 | |
| 533 // Currently, we only handle conversions for the IEEE types. To fix | |
| 534 // that, make more of the following routines work. | |
| 535 | |
| 5775 | 536 // FIXME -- assumes sizeof (Complex) == 8 |
| 537 // FIXME -- assumes sizeof (double) == 8 | |
| 538 // FIXME -- assumes sizeof (float) == 4 | |
| 1960 | 539 |
| 540 static void | |
| 4944 | 541 IEEE_big_double_to_IEEE_little_double (void *d, int len) |
| 1960 | 542 { |
| 4944 | 543 swap_bytes<8> (d, len); |
| 1960 | 544 } |
| 545 | |
| 546 static void | |
| 4944 | 547 VAX_D_double_to_IEEE_little_double (void * /* d */, int /* len */) |
| 1960 | 548 { |
| 549 gripe_data_conversion ("VAX D float", "IEEE little endian format"); | |
| 550 } | |
| 551 | |
| 552 static void | |
| 4944 | 553 VAX_G_double_to_IEEE_little_double (void * /* d */, int /* len */) |
| 1960 | 554 { |
| 555 gripe_data_conversion ("VAX G float", "IEEE little endian format"); | |
| 556 } | |
| 557 | |
| 558 static void | |
| 4944 | 559 Cray_to_IEEE_little_double (void * /* d */, int /* len */) |
| 1960 | 560 { |
| 561 gripe_data_conversion ("Cray", "IEEE little endian format"); | |
| 562 } | |
| 563 | |
| 564 static void | |
| 4944 | 565 IEEE_big_float_to_IEEE_little_float (void *d, int len) |
| 1960 | 566 { |
| 4944 | 567 swap_bytes<4> (d, len); |
| 1960 | 568 } |
| 569 | |
| 570 static void | |
| 4944 | 571 VAX_D_float_to_IEEE_little_float (void * /* d */, int /* len */) |
| 1960 | 572 { |
| 573 gripe_data_conversion ("VAX D float", "IEEE little endian format"); | |
| 574 } | |
| 575 | |
| 576 static void | |
| 4944 | 577 VAX_G_float_to_IEEE_little_float (void * /* d */, int /* len */) |
| 1960 | 578 { |
| 579 gripe_data_conversion ("VAX G float", "IEEE little endian format"); | |
| 580 } | |
| 581 | |
| 582 static void | |
| 4944 | 583 Cray_to_IEEE_little_float (void * /* d */, int /* len */) |
| 1960 | 584 { |
| 585 gripe_data_conversion ("Cray", "IEEE little endian format"); | |
| 586 } | |
| 587 | |
| 588 static void | |
| 4944 | 589 IEEE_little_double_to_IEEE_big_double (void *d, int len) |
| 1960 | 590 { |
| 4944 | 591 swap_bytes<8> (d, len); |
| 1960 | 592 } |
| 593 | |
| 594 static void | |
| 4944 | 595 VAX_D_double_to_IEEE_big_double (void * /* d */, int /* len */) |
| 1960 | 596 { |
| 597 gripe_data_conversion ("VAX D float", "IEEE big endian format"); | |
| 598 } | |
| 599 | |
| 600 static void | |
| 4944 | 601 VAX_G_double_to_IEEE_big_double (void * /* d */, int /* len */) |
| 1960 | 602 { |
| 603 gripe_data_conversion ("VAX G float", "IEEE big endian format"); | |
| 604 } | |
| 605 | |
| 606 static void | |
| 4944 | 607 Cray_to_IEEE_big_double (void * /* d */, int /* len */) |
| 1960 | 608 { |
| 609 gripe_data_conversion ("Cray", "IEEE big endian format"); | |
| 610 } | |
| 611 | |
| 612 static void | |
| 4944 | 613 IEEE_little_float_to_IEEE_big_float (void *d, int len) |
| 1960 | 614 { |
| 4944 | 615 swap_bytes<4> (d, len); |
| 1960 | 616 } |
| 617 | |
| 618 static void | |
| 4944 | 619 VAX_D_float_to_IEEE_big_float (void * /* d */, int /* len */) |
| 1960 | 620 { |
| 621 gripe_data_conversion ("VAX D float", "IEEE big endian format"); | |
| 622 } | |
| 623 | |
| 624 static void | |
| 4944 | 625 VAX_G_float_to_IEEE_big_float (void * /* d */, int /* len */) |
| 1960 | 626 { |
| 627 gripe_data_conversion ("VAX G float", "IEEE big endian format"); | |
| 628 } | |
| 629 | |
| 630 static void | |
| 4944 | 631 Cray_to_IEEE_big_float (void * /* d */, int /* len */) |
| 1960 | 632 { |
| 633 gripe_data_conversion ("Cray", "IEEE big endian format"); | |
| 634 } | |
| 635 | |
| 636 static void | |
| 4944 | 637 IEEE_little_double_to_VAX_D_double (void * /* d */, int /* len */) |
| 1960 | 638 { |
| 639 gripe_data_conversion ("IEEE little endian", "VAX D"); | |
| 640 } | |
| 641 | |
| 642 static void | |
| 4944 | 643 IEEE_big_double_to_VAX_D_double (void * /* d */, int /* len */) |
| 1960 | 644 { |
| 645 gripe_data_conversion ("IEEE big endian", "VAX D"); | |
| 646 } | |
| 647 | |
| 648 static void | |
| 4944 | 649 VAX_G_double_to_VAX_D_double (void * /* d */, int /* len */) |
| 1960 | 650 { |
| 651 gripe_data_conversion ("VAX G float", "VAX D"); | |
| 652 } | |
| 653 | |
| 654 static void | |
| 4944 | 655 Cray_to_VAX_D_double (void * /* d */, int /* len */) |
| 1960 | 656 { |
| 657 gripe_data_conversion ("Cray", "VAX D"); | |
| 658 } | |
| 659 | |
| 660 static void | |
| 4944 | 661 IEEE_little_float_to_VAX_D_float (void * /* d */, int /* len */) |
| 1960 | 662 { |
| 663 gripe_data_conversion ("IEEE little endian", "VAX D"); | |
| 664 } | |
| 665 | |
| 666 static void | |
| 4944 | 667 IEEE_big_float_to_VAX_D_float (void * /* d */, int /* len */) |
| 1960 | 668 { |
| 669 gripe_data_conversion ("IEEE big endian", "VAX D"); | |
| 670 } | |
| 671 | |
| 672 static void | |
| 4944 | 673 VAX_G_float_to_VAX_D_float (void * /* d */, int /* len */) |
| 1960 | 674 { |
| 675 gripe_data_conversion ("VAX G float", "VAX D"); | |
| 676 } | |
| 677 | |
| 678 static void | |
| 4944 | 679 Cray_to_VAX_D_float (void * /* d */, int /* len */) |
| 1960 | 680 { |
| 681 gripe_data_conversion ("Cray", "VAX D"); | |
| 682 } | |
| 683 | |
| 684 static void | |
| 4944 | 685 IEEE_little_double_to_VAX_G_double (void * /* d */, int /* len */) |
| 1960 | 686 { |
| 687 gripe_data_conversion ("IEEE little endian", "VAX G"); | |
| 688 } | |
| 689 | |
| 690 static void | |
| 4944 | 691 IEEE_big_double_to_VAX_G_double (void * /* d */, int /* len */) |
| 1960 | 692 { |
| 693 gripe_data_conversion ("IEEE big endian", "VAX G"); | |
| 694 } | |
| 695 | |
| 696 static void | |
| 4944 | 697 VAX_D_double_to_VAX_G_double (void * /* d */, int /* len */) |
| 1960 | 698 { |
| 699 gripe_data_conversion ("VAX D float", "VAX G"); | |
| 700 } | |
| 701 | |
| 702 static void | |
| 4944 | 703 Cray_to_VAX_G_double (void * /* d */, int /* len */) |
| 1960 | 704 { |
| 705 gripe_data_conversion ("VAX G float", "VAX G"); | |
| 706 } | |
| 707 | |
| 708 static void | |
| 4944 | 709 IEEE_little_float_to_VAX_G_float (void * /* d */, int /* len */) |
| 1960 | 710 { |
| 711 gripe_data_conversion ("IEEE little endian", "VAX G"); | |
| 712 } | |
| 713 | |
| 714 static void | |
| 4944 | 715 IEEE_big_float_to_VAX_G_float (void * /* d */, int /* len */) |
| 1960 | 716 { |
| 717 gripe_data_conversion ("IEEE big endian", "VAX G"); | |
| 718 } | |
| 719 | |
| 720 static void | |
| 4944 | 721 VAX_D_float_to_VAX_G_float (void * /* d */, int /* len */) |
| 1960 | 722 { |
| 723 gripe_data_conversion ("VAX D float", "VAX G"); | |
| 724 } | |
| 725 | |
| 726 static void | |
| 4944 | 727 Cray_to_VAX_G_float (void * /* d */, int /* len */) |
| 1960 | 728 { |
| 729 gripe_data_conversion ("VAX G float", "VAX G"); | |
| 730 } | |
| 731 | |
| 732 void | |
| 4944 | 733 do_double_format_conversion (void *data, int len, |
| 734 oct_mach_info::float_format from_fmt, | |
| 735 oct_mach_info::float_format to_fmt) | |
| 1960 | 736 { |
| 4944 | 737 switch (to_fmt) |
| 1960 | 738 { |
| 4574 | 739 case oct_mach_info::flt_fmt_ieee_little_endian: |
| 4944 | 740 switch (from_fmt) |
| 1960 | 741 { |
| 4574 | 742 case oct_mach_info::flt_fmt_ieee_little_endian: |
| 1960 | 743 break; |
| 744 | |
| 4574 | 745 case oct_mach_info::flt_fmt_ieee_big_endian: |
| 1960 | 746 IEEE_big_double_to_IEEE_little_double (data, len); |
| 747 break; | |
| 748 | |
| 4574 | 749 case oct_mach_info::flt_fmt_vax_d: |
| 1960 | 750 VAX_D_double_to_IEEE_little_double (data, len); |
| 751 break; | |
| 752 | |
| 4574 | 753 case oct_mach_info::flt_fmt_vax_g: |
| 1960 | 754 VAX_G_double_to_IEEE_little_double (data, len); |
| 755 break; | |
| 756 | |
| 4574 | 757 case oct_mach_info::flt_fmt_cray: |
| 1960 | 758 Cray_to_IEEE_little_double (data, len); |
| 759 break; | |
| 760 | |
| 761 default: | |
| 762 gripe_unrecognized_float_fmt (); | |
| 763 break; | |
| 764 } | |
| 765 break; | |
| 766 | |
| 4574 | 767 case oct_mach_info::flt_fmt_ieee_big_endian: |
| 4944 | 768 switch (from_fmt) |
| 1960 | 769 { |
| 4574 | 770 case oct_mach_info::flt_fmt_ieee_little_endian: |
| 1960 | 771 IEEE_little_double_to_IEEE_big_double (data, len); |
| 772 break; | |
| 773 | |
| 4574 | 774 case oct_mach_info::flt_fmt_ieee_big_endian: |
| 1960 | 775 break; |
| 776 | |
| 4574 | 777 case oct_mach_info::flt_fmt_vax_d: |
| 1960 | 778 VAX_D_double_to_IEEE_big_double (data, len); |
| 779 break; | |
| 780 | |
| 4574 | 781 case oct_mach_info::flt_fmt_vax_g: |
| 1960 | 782 VAX_G_double_to_IEEE_big_double (data, len); |
| 783 break; | |
| 784 | |
| 4574 | 785 case oct_mach_info::flt_fmt_cray: |
| 1960 | 786 Cray_to_IEEE_big_double (data, len); |
| 787 break; | |
| 788 | |
| 789 default: | |
| 790 gripe_unrecognized_float_fmt (); | |
| 791 break; | |
| 792 } | |
| 793 break; | |
| 794 | |
| 4574 | 795 case oct_mach_info::flt_fmt_vax_d: |
| 4944 | 796 switch (from_fmt) |
| 1960 | 797 { |
| 4574 | 798 case oct_mach_info::flt_fmt_ieee_little_endian: |
| 1960 | 799 IEEE_little_double_to_VAX_D_double (data, len); |
| 800 break; | |
| 801 | |
| 4574 | 802 case oct_mach_info::flt_fmt_ieee_big_endian: |
| 1960 | 803 IEEE_big_double_to_VAX_D_double (data, len); |
| 804 break; | |
| 805 | |
| 4574 | 806 case oct_mach_info::flt_fmt_vax_d: |
| 1960 | 807 break; |
| 808 | |
| 4574 | 809 case oct_mach_info::flt_fmt_vax_g: |
| 1960 | 810 VAX_G_double_to_VAX_D_double (data, len); |
| 811 break; | |
| 812 | |
| 4574 | 813 case oct_mach_info::flt_fmt_cray: |
| 1960 | 814 Cray_to_VAX_D_double (data, len); |
| 815 break; | |
| 816 | |
| 817 default: | |
| 818 gripe_unrecognized_float_fmt (); | |
| 819 break; | |
| 820 } | |
| 821 break; | |
| 822 | |
| 4574 | 823 case oct_mach_info::flt_fmt_vax_g: |
| 4944 | 824 switch (from_fmt) |
| 1960 | 825 { |
| 4574 | 826 case oct_mach_info::flt_fmt_ieee_little_endian: |
| 1960 | 827 IEEE_little_double_to_VAX_G_double (data, len); |
| 828 break; | |
| 829 | |
| 4574 | 830 case oct_mach_info::flt_fmt_ieee_big_endian: |
| 1960 | 831 IEEE_big_double_to_VAX_G_double (data, len); |
| 832 break; | |
| 833 | |
| 4574 | 834 case oct_mach_info::flt_fmt_vax_d: |
| 1960 | 835 VAX_D_double_to_VAX_G_double (data, len); |
| 836 break; | |
| 837 | |
| 4574 | 838 case oct_mach_info::flt_fmt_vax_g: |
| 1960 | 839 break; |
| 840 | |
| 4574 | 841 case oct_mach_info::flt_fmt_cray: |
| 1960 | 842 Cray_to_VAX_G_double (data, len); |
| 843 break; | |
| 844 | |
| 845 default: | |
| 846 gripe_unrecognized_float_fmt (); | |
| 847 break; | |
| 848 } | |
| 849 break; | |
| 850 | |
| 851 default: | |
| 852 (*current_liboctave_error_handler) | |
| 853 ("impossible state reached in file `%s' at line %d", | |
| 854 __FILE__, __LINE__); | |
| 855 break; | |
| 856 } | |
| 857 } | |
| 858 | |
| 859 void | |
| 4944 | 860 do_float_format_conversion (void *data, int len, |
| 861 oct_mach_info::float_format from_fmt, | |
| 862 oct_mach_info::float_format to_fmt) | |
| 1960 | 863 { |
| 4944 | 864 switch (to_fmt) |
| 1960 | 865 { |
| 4574 | 866 case oct_mach_info::flt_fmt_ieee_little_endian: |
| 4944 | 867 switch (from_fmt) |
| 1960 | 868 { |
| 4574 | 869 case oct_mach_info::flt_fmt_ieee_little_endian: |
| 1960 | 870 break; |
| 871 | |
| 4574 | 872 case oct_mach_info::flt_fmt_ieee_big_endian: |
| 1960 | 873 IEEE_big_float_to_IEEE_little_float (data, len); |
| 874 break; | |
| 875 | |
| 4574 | 876 case oct_mach_info::flt_fmt_vax_d: |
| 1960 | 877 VAX_D_float_to_IEEE_little_float (data, len); |
| 878 break; | |
| 879 | |
| 4574 | 880 case oct_mach_info::flt_fmt_vax_g: |
| 1960 | 881 VAX_G_float_to_IEEE_little_float (data, len); |
| 882 break; | |
| 883 | |
| 4574 | 884 case oct_mach_info::flt_fmt_cray: |
| 1960 | 885 Cray_to_IEEE_little_float (data, len); |
| 886 break; | |
| 887 | |
| 888 default: | |
| 889 gripe_unrecognized_float_fmt (); | |
| 890 break; | |
| 891 } | |
| 892 break; | |
| 893 | |
| 4574 | 894 case oct_mach_info::flt_fmt_ieee_big_endian: |
| 4944 | 895 switch (from_fmt) |
| 1960 | 896 { |
| 4574 | 897 case oct_mach_info::flt_fmt_ieee_little_endian: |
| 1960 | 898 IEEE_little_float_to_IEEE_big_float (data, len); |
| 899 break; | |
| 900 | |
| 4574 | 901 case oct_mach_info::flt_fmt_ieee_big_endian: |
| 1960 | 902 break; |
| 903 | |
| 4574 | 904 case oct_mach_info::flt_fmt_vax_d: |
| 1960 | 905 VAX_D_float_to_IEEE_big_float (data, len); |
| 906 break; | |
| 907 | |
| 4574 | 908 case oct_mach_info::flt_fmt_vax_g: |
| 1960 | 909 VAX_G_float_to_IEEE_big_float (data, len); |
| 910 break; | |
| 911 | |
| 4574 | 912 case oct_mach_info::flt_fmt_cray: |
| 1960 | 913 Cray_to_IEEE_big_float (data, len); |
| 914 break; | |
| 915 | |
| 916 default: | |
| 917 gripe_unrecognized_float_fmt (); | |
| 918 break; | |
| 919 } | |
| 920 break; | |
| 921 | |
| 4574 | 922 case oct_mach_info::flt_fmt_vax_d: |
| 4944 | 923 switch (from_fmt) |
| 1960 | 924 { |
| 4574 | 925 case oct_mach_info::flt_fmt_ieee_little_endian: |
| 1960 | 926 IEEE_little_float_to_VAX_D_float (data, len); |
| 927 break; | |
| 928 | |
| 4574 | 929 case oct_mach_info::flt_fmt_ieee_big_endian: |
| 1960 | 930 IEEE_big_float_to_VAX_D_float (data, len); |
| 931 break; | |
| 932 | |
| 4574 | 933 case oct_mach_info::flt_fmt_vax_d: |
| 1960 | 934 break; |
| 935 | |
| 4574 | 936 case oct_mach_info::flt_fmt_vax_g: |
| 1960 | 937 VAX_G_float_to_VAX_D_float (data, len); |
| 938 break; | |
| 939 | |
| 4574 | 940 case oct_mach_info::flt_fmt_cray: |
| 1960 | 941 Cray_to_VAX_D_float (data, len); |
| 942 break; | |
| 943 | |
| 944 default: | |
| 945 gripe_unrecognized_float_fmt (); | |
| 946 break; | |
| 947 } | |
| 948 break; | |
| 949 | |
| 4574 | 950 case oct_mach_info::flt_fmt_vax_g: |
| 4944 | 951 switch (from_fmt) |
| 1960 | 952 { |
| 4574 | 953 case oct_mach_info::flt_fmt_ieee_little_endian: |
| 1960 | 954 IEEE_little_float_to_VAX_G_float (data, len); |
| 955 break; | |
| 956 | |
| 4574 | 957 case oct_mach_info::flt_fmt_ieee_big_endian: |
| 1960 | 958 IEEE_big_float_to_VAX_G_float (data, len); |
| 959 break; | |
| 960 | |
| 4574 | 961 case oct_mach_info::flt_fmt_vax_d: |
| 1960 | 962 VAX_D_float_to_VAX_G_float (data, len); |
| 963 break; | |
| 964 | |
| 4574 | 965 case oct_mach_info::flt_fmt_vax_g: |
| 1960 | 966 break; |
| 967 | |
| 4574 | 968 case oct_mach_info::flt_fmt_cray: |
| 1960 | 969 Cray_to_VAX_G_float (data, len); |
| 970 break; | |
| 971 | |
| 972 default: | |
| 973 gripe_unrecognized_float_fmt (); | |
| 974 break; | |
| 975 } | |
| 976 break; | |
| 977 | |
| 978 default: | |
| 979 (*current_liboctave_error_handler) | |
| 980 ("impossible state reached in file `%s' at line %d", | |
| 981 __FILE__, __LINE__); | |
| 982 break; | |
| 983 } | |
| 984 } | |
| 985 | |
| 986 void | |
| 4944 | 987 do_float_format_conversion (void *data, size_t sz, int len, |
| 988 oct_mach_info::float_format from_fmt, | |
| 989 oct_mach_info::float_format to_fmt) | |
| 990 { | |
| 991 switch (sz) | |
| 992 { | |
| 993 case sizeof (float): | |
| 994 do_float_format_conversion (data, len, from_fmt, to_fmt); | |
| 995 break; | |
| 996 | |
| 997 case sizeof (double): | |
| 998 do_double_format_conversion (data, len, from_fmt, to_fmt); | |
| 999 break; | |
| 1000 | |
| 1001 default: | |
| 1002 (*current_liboctave_error_handler) | |
| 1003 ("impossible state reached in file `%s' at line %d", | |
| 1004 __FILE__, __LINE__); | |
| 1005 break; | |
| 1006 } | |
| 1007 } | |
| 1008 | |
| 1009 | |
| 1010 void | |
| 3504 | 1011 read_doubles (std::istream& is, double *data, save_type type, int len, |
| 4944 | 1012 bool swap, oct_mach_info::float_format fmt) |
| 1960 | 1013 { |
| 1014 switch (type) | |
| 1015 { | |
| 1016 case LS_U_CHAR: | |
| 5828 | 1017 LS_DO_READ (uint8_t, swap, data, 1, len, is); |
| 1960 | 1018 break; |
| 1019 | |
| 1020 case LS_U_SHORT: | |
| 5828 | 1021 LS_DO_READ (uint16_t, swap, data, 2, len, is); |
| 1960 | 1022 break; |
| 1023 | |
| 1024 case LS_U_INT: | |
| 5828 | 1025 LS_DO_READ (uint32_t, swap, data, 4, len, is); |
| 1960 | 1026 break; |
| 1027 | |
| 1028 case LS_CHAR: | |
| 5828 | 1029 LS_DO_READ (int8_t, swap, data, 1, len, is); |
| 1960 | 1030 break; |
| 1031 | |
| 1032 case LS_SHORT: | |
| 5828 | 1033 LS_DO_READ (int16_t, swap, data, 2, len, is); |
| 1960 | 1034 break; |
| 1035 | |
| 1036 case LS_INT: | |
| 5828 | 1037 LS_DO_READ (int32_t, swap, data, 4, len, is); |
| 1960 | 1038 break; |
| 1039 | |
| 1040 case LS_FLOAT: | |
| 1041 { | |
| 5760 | 1042 OCTAVE_LOCAL_BUFFER (float, ptr, len); |
| 1043 is.read (reinterpret_cast<char *> (ptr), 4 * len); | |
| 1044 do_float_format_conversion (ptr, len, fmt); | |
| 1045 for (int i = 0; i < len; i++) | |
| 1960 | 1046 data[i] = ptr[i]; |
| 1047 } | |
| 1048 break; | |
| 1049 | |
| 3359 | 1050 case LS_DOUBLE: // No conversion necessary. |
| 5760 | 1051 is.read (reinterpret_cast<char *> (data), 8 * len); |
| 1960 | 1052 do_double_format_conversion (data, len, fmt); |
| 1053 break; | |
| 1054 | |
| 1055 default: | |
| 3504 | 1056 is.clear (std::ios::failbit|is.rdstate ()); |
| 1960 | 1057 break; |
| 1058 } | |
| 1059 } | |
| 1060 | |
| 1061 void | |
|
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7017
diff
changeset
|
1062 read_floats (std::istream& is, float *data, save_type type, int len, |
|
82be108cc558
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David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1063 bool swap, oct_mach_info::float_format fmt) |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1064 { |
|
82be108cc558
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parents:
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diff
changeset
|
1065 switch (type) |
|
82be108cc558
First attempt at single precision tyeps
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parents:
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changeset
|
1066 { |
|
82be108cc558
First attempt at single precision tyeps
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parents:
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diff
changeset
|
1067 case LS_U_CHAR: |
|
82be108cc558
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parents:
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diff
changeset
|
1068 LS_DO_READ (uint8_t, swap, data, 1, len, is); |
|
82be108cc558
First attempt at single precision tyeps
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parents:
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changeset
|
1069 break; |
|
82be108cc558
First attempt at single precision tyeps
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parents:
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changeset
|
1070 |
|
82be108cc558
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|
1071 case LS_U_SHORT: |
|
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parents:
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changeset
|
1072 LS_DO_READ (uint16_t, swap, data, 2, len, is); |
|
82be108cc558
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parents:
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changeset
|
1073 break; |
|
82be108cc558
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|
1074 |
|
82be108cc558
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1075 case LS_U_INT: |
|
82be108cc558
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parents:
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changeset
|
1076 LS_DO_READ (uint32_t, swap, data, 4, len, is); |
|
82be108cc558
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parents:
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changeset
|
1077 break; |
|
82be108cc558
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|
1078 |
|
82be108cc558
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|
1079 case LS_CHAR: |
|
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|
1080 LS_DO_READ (int8_t, swap, data, 1, len, is); |
|
82be108cc558
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parents:
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changeset
|
1081 break; |
|
82be108cc558
First attempt at single precision tyeps
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parents:
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|
1082 |
|
82be108cc558
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changeset
|
1083 case LS_SHORT: |
|
82be108cc558
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1084 LS_DO_READ (int16_t, swap, data, 2, len, is); |
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1085 break; |
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1086 |
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1087 case LS_INT: |
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1088 LS_DO_READ (int32_t, swap, data, 4, len, is); |
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1089 break; |
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1090 |
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1091 case LS_FLOAT: // No conversion necessary. |
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1092 is.read (reinterpret_cast<char *> (data), 4 * len); |
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1093 do_float_format_conversion (data, len, fmt); |
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1094 break; |
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1095 |
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1096 case LS_DOUBLE: |
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1097 { |
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1098 OCTAVE_LOCAL_BUFFER (double, ptr, len); |
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1099 is.read (reinterpret_cast<char *> (ptr), 8 * len); |
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1100 do_double_format_conversion (ptr, len, fmt); |
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1101 for (int i = 0; i < len; i++) |
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1102 data[i] = ptr[i]; |
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1103 } |
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1104 break; |
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1105 |
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1106 default: |
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1107 is.clear (std::ios::failbit|is.rdstate ()); |
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1108 break; |
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1109 } |
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1110 } |
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1111 |
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1112 void |
| 3504 | 1113 write_doubles (std::ostream& os, const double *data, save_type type, int len) |
| 1960 | 1114 { |
| 1115 switch (type) | |
| 1116 { | |
| 1117 case LS_U_CHAR: | |
| 5828 | 1118 LS_DO_WRITE (uint8_t, data, 1, len, os); |
| 1960 | 1119 break; |
| 1120 | |
| 1121 case LS_U_SHORT: | |
| 5828 | 1122 LS_DO_WRITE (uint16_t, data, 2, len, os); |
| 1960 | 1123 break; |
| 1124 | |
| 1125 case LS_U_INT: | |
| 5828 | 1126 LS_DO_WRITE (uint32_t, data, 4, len, os); |
| 1960 | 1127 break; |
| 1128 | |
| 1129 case LS_CHAR: | |
| 5828 | 1130 LS_DO_WRITE (int8_t, data, 1, len, os); |
| 1960 | 1131 break; |
| 1132 | |
| 1133 case LS_SHORT: | |
| 5828 | 1134 LS_DO_WRITE (int16_t, data, 2, len, os); |
| 1960 | 1135 break; |
| 1136 | |
| 1137 case LS_INT: | |
| 5828 | 1138 LS_DO_WRITE (int32_t, data, 4, len, os); |
| 1960 | 1139 break; |
| 1140 | |
| 1141 case LS_FLOAT: | |
| 1142 LS_DO_WRITE (float, data, 4, len, os); | |
| 1143 break; | |
| 1144 | |
| 3359 | 1145 case LS_DOUBLE: // No conversion necessary. |
| 1960 | 1146 { |
| 5760 | 1147 char tmp_type = static_cast<char> (type); |
| 1960 | 1148 os.write (&tmp_type, 1); |
| 5760 | 1149 os.write (reinterpret_cast <const char *> (data), 8 * len); |
| 1960 | 1150 } |
| 1151 break; | |
| 1152 | |
| 1153 default: | |
| 1154 (*current_liboctave_error_handler) | |
| 1155 ("unrecognized data format requested"); | |
| 1156 break; | |
| 1157 } | |
| 1158 } | |
| 1159 | |
|
7789
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1160 void |
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1161 write_floats (std::ostream& os, const float *data, save_type type, int len) |
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1162 { |
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1163 switch (type) |
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1164 { |
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1165 case LS_U_CHAR: |
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1166 LS_DO_WRITE (uint8_t, data, 1, len, os); |
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1167 break; |
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1168 |
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1169 case LS_U_SHORT: |
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1170 LS_DO_WRITE (uint16_t, data, 2, len, os); |
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1171 break; |
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1172 |
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1173 case LS_U_INT: |
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1174 LS_DO_WRITE (uint32_t, data, 4, len, os); |
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1175 break; |
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1176 |
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1177 case LS_CHAR: |
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1178 LS_DO_WRITE (int8_t, data, 1, len, os); |
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1179 break; |
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1180 |
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1181 case LS_SHORT: |
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1182 LS_DO_WRITE (int16_t, data, 2, len, os); |
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1183 break; |
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1184 |
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1185 case LS_INT: |
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1186 LS_DO_WRITE (int32_t, data, 4, len, os); |
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1187 break; |
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1188 |
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1189 case LS_FLOAT: // No conversion necessary. |
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1190 { |
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1191 char tmp_type = static_cast<char> (type); |
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1192 os.write (&tmp_type, 1); |
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1193 os.write (reinterpret_cast <const char *> (data), 4 * len); |
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1194 } |
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1195 break; |
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1196 |
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1197 case LS_DOUBLE: |
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1198 LS_DO_WRITE (double, data, 8, len, os); |
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1199 break; |
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1200 |
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1201 default: |
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1202 (*current_liboctave_error_handler) |
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1203 ("unrecognized data format requested"); |
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1204 break; |
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1205 } |
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1206 } |
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1207 |
| 1960 | 1208 /* |
| 1209 ;;; Local Variables: *** | |
| 1210 ;;; mode: C++ *** | |
| 1211 ;;; End: *** | |
| 1212 */ |