| 1 | /* Copyright (C) 1995,1996,1997,1998,2000,2001,2002,2003,2004 Free Software Foundation, Inc. |
| 2 | * |
| 3 | * This library is free software; you can redistribute it and/or |
| 4 | * modify it under the terms of the GNU Lesser General Public |
| 5 | * License as published by the Free Software Foundation; either |
| 6 | * version 2.1 of the License, or (at your option) any later version. |
| 7 | * |
| 8 | * This library is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 11 | * Lesser General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU Lesser General Public |
| 14 | * License along with this library; if not, write to the Free Software |
| 15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 16 | */ |
| 17 | |
| 18 | |
| 19 | /* |
| 20 | This file has code for arrays in lots of variants (double, integer, |
| 21 | unsigned etc. ). It suffers from hugely repetitive code because |
| 22 | there is similar (but different) code for every variant included. (urg.) |
| 23 | |
| 24 | --hwn |
| 25 | */ |
| 26 | \f |
| 27 | |
| 28 | #if HAVE_CONFIG_H |
| 29 | # include <config.h> |
| 30 | #endif |
| 31 | |
| 32 | #include <stdio.h> |
| 33 | #include <errno.h> |
| 34 | #include <string.h> |
| 35 | |
| 36 | #include "libguile/_scm.h" |
| 37 | #include "libguile/chars.h" |
| 38 | #include "libguile/eval.h" |
| 39 | #include "libguile/fports.h" |
| 40 | #include "libguile/smob.h" |
| 41 | #include "libguile/strop.h" |
| 42 | #include "libguile/feature.h" |
| 43 | #include "libguile/root.h" |
| 44 | #include "libguile/strings.h" |
| 45 | #include "libguile/vectors.h" |
| 46 | |
| 47 | #include "libguile/validate.h" |
| 48 | #include "libguile/unif.h" |
| 49 | #include "libguile/ramap.h" |
| 50 | |
| 51 | #ifdef HAVE_UNISTD_H |
| 52 | #include <unistd.h> |
| 53 | #endif |
| 54 | |
| 55 | #ifdef HAVE_IO_H |
| 56 | #include <io.h> |
| 57 | #endif |
| 58 | |
| 59 | \f |
| 60 | /* The set of uniform scm_vector types is: |
| 61 | * Vector of: Called: |
| 62 | * unsigned char string |
| 63 | * char byvect |
| 64 | * boolean bvect |
| 65 | * signed long ivect |
| 66 | * unsigned long uvect |
| 67 | * float fvect |
| 68 | * double dvect |
| 69 | * complex double cvect |
| 70 | * short svect |
| 71 | * long long llvect |
| 72 | */ |
| 73 | |
| 74 | scm_t_bits scm_tc16_array; |
| 75 | static SCM exactly_one_third; |
| 76 | |
| 77 | /* return the size of an element in a uniform array or 0 if type not |
| 78 | found. */ |
| 79 | size_t |
| 80 | scm_uniform_element_size (SCM obj) |
| 81 | { |
| 82 | size_t result; |
| 83 | |
| 84 | switch (SCM_TYP7 (obj)) |
| 85 | { |
| 86 | case scm_tc7_bvect: |
| 87 | case scm_tc7_uvect: |
| 88 | case scm_tc7_ivect: |
| 89 | result = sizeof (long); |
| 90 | break; |
| 91 | |
| 92 | case scm_tc7_byvect: |
| 93 | result = sizeof (char); |
| 94 | break; |
| 95 | |
| 96 | case scm_tc7_svect: |
| 97 | result = sizeof (short); |
| 98 | break; |
| 99 | |
| 100 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 101 | case scm_tc7_llvect: |
| 102 | result = sizeof (long long); |
| 103 | break; |
| 104 | #endif |
| 105 | |
| 106 | case scm_tc7_fvect: |
| 107 | result = sizeof (float); |
| 108 | break; |
| 109 | |
| 110 | case scm_tc7_dvect: |
| 111 | result = sizeof (double); |
| 112 | break; |
| 113 | |
| 114 | case scm_tc7_cvect: |
| 115 | result = 2 * sizeof (double); |
| 116 | break; |
| 117 | |
| 118 | default: |
| 119 | result = 0; |
| 120 | } |
| 121 | return result; |
| 122 | } |
| 123 | |
| 124 | /* Silly function used not to modify the semantics of the silly |
| 125 | * prototype system in order to be backward compatible. |
| 126 | */ |
| 127 | static int |
| 128 | singp (SCM obj) |
| 129 | { |
| 130 | if (!SCM_REALP (obj)) |
| 131 | return 0; |
| 132 | else |
| 133 | { |
| 134 | double x = SCM_REAL_VALUE (obj); |
| 135 | float fx = x; |
| 136 | return (- SCM_FLTMAX < x) && (x < SCM_FLTMAX) && (fx == x); |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | static SCM |
| 141 | make_uve (long type, long k, size_t size) |
| 142 | #define FUNC_NAME "scm_make_uve" |
| 143 | { |
| 144 | SCM_ASSERT_RANGE (1, scm_from_long (k), k <= SCM_UVECTOR_MAX_LENGTH); |
| 145 | |
| 146 | return scm_cell (SCM_MAKE_UVECTOR_TAG (k, type), |
| 147 | (scm_t_bits) scm_gc_malloc (k * size, "vector")); |
| 148 | } |
| 149 | #undef FUNC_NAME |
| 150 | |
| 151 | SCM |
| 152 | scm_make_uve (long k, SCM prot) |
| 153 | #define FUNC_NAME "scm_make_uve" |
| 154 | { |
| 155 | if (scm_is_eq (prot, SCM_BOOL_T)) |
| 156 | { |
| 157 | if (k > 0) |
| 158 | { |
| 159 | long i; |
| 160 | SCM_ASSERT_RANGE (1, scm_from_long (k), |
| 161 | k <= SCM_BITVECTOR_MAX_LENGTH); |
| 162 | i = sizeof (long) * ((k + SCM_LONG_BIT - 1) / SCM_LONG_BIT); |
| 163 | return scm_cell (SCM_MAKE_BITVECTOR_TAG (k), |
| 164 | (scm_t_bits) scm_gc_malloc (i, "vector")); |
| 165 | } |
| 166 | else |
| 167 | return scm_cell (SCM_MAKE_BITVECTOR_TAG (0), 0); |
| 168 | } |
| 169 | else if (SCM_CHARP (prot) && (SCM_CHAR (prot) == '\0')) |
| 170 | return make_uve (scm_tc7_byvect, k, sizeof (char)); |
| 171 | else if (SCM_CHARP (prot)) |
| 172 | return scm_c_make_string (sizeof (char) * k, SCM_UNDEFINED); |
| 173 | else if (SCM_I_INUMP (prot)) |
| 174 | return make_uve (SCM_I_INUM (prot) > 0 ? scm_tc7_uvect : scm_tc7_ivect, |
| 175 | k, |
| 176 | sizeof (long)); |
| 177 | else if (SCM_FRACTIONP (prot)) |
| 178 | { |
| 179 | if (scm_num_eq_p (exactly_one_third, prot)) |
| 180 | goto dvect; |
| 181 | } |
| 182 | else if (scm_is_symbol (prot) && (1 == scm_i_symbol_length (prot))) |
| 183 | { |
| 184 | char s; |
| 185 | |
| 186 | s = scm_i_symbol_chars (prot)[0]; |
| 187 | if (s == 's') |
| 188 | return make_uve (scm_tc7_svect, k, sizeof (short)); |
| 189 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 190 | else if (s == 'l') |
| 191 | return make_uve (scm_tc7_llvect, k, sizeof (long long)); |
| 192 | #endif |
| 193 | else |
| 194 | return scm_c_make_vector (k, SCM_UNDEFINED); |
| 195 | } |
| 196 | else if (!SCM_INEXACTP (prot)) |
| 197 | /* Huge non-unif vectors are NOT supported. */ |
| 198 | /* no special scm_vector */ |
| 199 | return scm_c_make_vector (k, SCM_UNDEFINED); |
| 200 | else if (singp (prot)) |
| 201 | return make_uve (scm_tc7_fvect, k, sizeof (float)); |
| 202 | else if (SCM_COMPLEXP (prot)) |
| 203 | return make_uve (scm_tc7_cvect, k, 2 * sizeof (double)); |
| 204 | dvect: |
| 205 | return make_uve (scm_tc7_dvect, k, sizeof (double)); |
| 206 | } |
| 207 | #undef FUNC_NAME |
| 208 | |
| 209 | SCM_DEFINE (scm_uniform_vector_length, "uniform-vector-length", 1, 0, 0, |
| 210 | (SCM v), |
| 211 | "Return the number of elements in @var{uve}.") |
| 212 | #define FUNC_NAME s_scm_uniform_vector_length |
| 213 | { |
| 214 | SCM_ASRTGO (SCM_NIMP (v), badarg1); |
| 215 | switch SCM_TYP7 (v) |
| 216 | { |
| 217 | default: |
| 218 | badarg1:SCM_WRONG_TYPE_ARG (1, v); |
| 219 | case scm_tc7_vector: |
| 220 | case scm_tc7_wvect: |
| 221 | return scm_from_size_t (SCM_VECTOR_LENGTH (v)); |
| 222 | case scm_tc7_string: |
| 223 | return scm_from_size_t (scm_i_string_length (v)); |
| 224 | case scm_tc7_bvect: |
| 225 | return scm_from_size_t (SCM_BITVECTOR_LENGTH (v)); |
| 226 | case scm_tc7_byvect: |
| 227 | case scm_tc7_uvect: |
| 228 | case scm_tc7_ivect: |
| 229 | case scm_tc7_fvect: |
| 230 | case scm_tc7_dvect: |
| 231 | case scm_tc7_cvect: |
| 232 | case scm_tc7_svect: |
| 233 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 234 | case scm_tc7_llvect: |
| 235 | #endif |
| 236 | return scm_from_size_t (SCM_UVECTOR_LENGTH (v)); |
| 237 | } |
| 238 | } |
| 239 | #undef FUNC_NAME |
| 240 | |
| 241 | SCM_DEFINE (scm_array_p, "array?", 1, 1, 0, |
| 242 | (SCM v, SCM prot), |
| 243 | "Return @code{#t} if the @var{obj} is an array, and @code{#f} if\n" |
| 244 | "not. The @var{prototype} argument is used with uniform arrays\n" |
| 245 | "and is described elsewhere.") |
| 246 | #define FUNC_NAME s_scm_array_p |
| 247 | { |
| 248 | int nprot; |
| 249 | int enclosed; |
| 250 | nprot = SCM_UNBNDP (prot); |
| 251 | enclosed = 0; |
| 252 | if (SCM_IMP (v)) |
| 253 | return SCM_BOOL_F; |
| 254 | |
| 255 | while (SCM_TYP7 (v) == scm_tc7_smob) |
| 256 | { |
| 257 | if (!SCM_ARRAYP (v)) |
| 258 | return SCM_BOOL_F; |
| 259 | if (nprot) |
| 260 | return SCM_BOOL_T; |
| 261 | if (enclosed++) |
| 262 | return SCM_BOOL_F; |
| 263 | v = SCM_ARRAY_V (v); |
| 264 | } |
| 265 | if (nprot) |
| 266 | return scm_from_bool(nprot); |
| 267 | else |
| 268 | { |
| 269 | int protp = 0; |
| 270 | |
| 271 | switch (SCM_TYP7 (v)) |
| 272 | { |
| 273 | case scm_tc7_bvect: |
| 274 | protp = (scm_is_eq (prot, SCM_BOOL_T)); |
| 275 | break; |
| 276 | case scm_tc7_string: |
| 277 | protp = SCM_CHARP(prot) && (SCM_CHAR (prot) != '\0'); |
| 278 | break; |
| 279 | case scm_tc7_byvect: |
| 280 | protp = scm_is_eq (prot, SCM_MAKE_CHAR ('\0')); |
| 281 | break; |
| 282 | case scm_tc7_uvect: |
| 283 | protp = SCM_I_INUMP(prot) && SCM_I_INUM(prot)>0; |
| 284 | break; |
| 285 | case scm_tc7_ivect: |
| 286 | protp = SCM_I_INUMP(prot) && SCM_I_INUM(prot)<=0; |
| 287 | break; |
| 288 | case scm_tc7_svect: |
| 289 | protp = scm_is_symbol (prot) |
| 290 | && (1 == scm_i_symbol_length (prot)) |
| 291 | && ('s' == scm_i_symbol_chars (prot)[0]); |
| 292 | break; |
| 293 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 294 | case scm_tc7_llvect: |
| 295 | protp = scm_is_symbol (prot) |
| 296 | && (1 == scm_i_symbol_length (prot)) |
| 297 | && ('l' == scm_i_symbol_chars (prot)[0]); |
| 298 | break; |
| 299 | #endif |
| 300 | case scm_tc7_fvect: |
| 301 | protp = singp (prot); |
| 302 | break; |
| 303 | case scm_tc7_dvect: |
| 304 | protp = ((SCM_REALP(prot) && ! singp (prot)) |
| 305 | || (SCM_FRACTIONP (prot) |
| 306 | && scm_num_eq_p (exactly_one_third, prot))); |
| 307 | break; |
| 308 | case scm_tc7_cvect: |
| 309 | protp = SCM_COMPLEXP(prot); |
| 310 | break; |
| 311 | case scm_tc7_vector: |
| 312 | case scm_tc7_wvect: |
| 313 | protp = SCM_NULLP(prot); |
| 314 | break; |
| 315 | default: |
| 316 | /* no default */ |
| 317 | ; |
| 318 | } |
| 319 | return scm_from_bool(protp); |
| 320 | } |
| 321 | } |
| 322 | #undef FUNC_NAME |
| 323 | |
| 324 | |
| 325 | SCM_DEFINE (scm_array_rank, "array-rank", 1, 0, 0, |
| 326 | (SCM ra), |
| 327 | "Return the number of dimensions of @var{obj}. If @var{obj} is\n" |
| 328 | "not an array, @code{0} is returned.") |
| 329 | #define FUNC_NAME s_scm_array_rank |
| 330 | { |
| 331 | if (SCM_IMP (ra)) |
| 332 | return SCM_INUM0; |
| 333 | switch (SCM_TYP7 (ra)) |
| 334 | { |
| 335 | default: |
| 336 | return SCM_INUM0; |
| 337 | case scm_tc7_string: |
| 338 | case scm_tc7_vector: |
| 339 | case scm_tc7_wvect: |
| 340 | case scm_tc7_byvect: |
| 341 | case scm_tc7_uvect: |
| 342 | case scm_tc7_ivect: |
| 343 | case scm_tc7_fvect: |
| 344 | case scm_tc7_cvect: |
| 345 | case scm_tc7_dvect: |
| 346 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 347 | case scm_tc7_llvect: |
| 348 | #endif |
| 349 | case scm_tc7_svect: |
| 350 | return scm_from_int (1); |
| 351 | case scm_tc7_smob: |
| 352 | if (SCM_ARRAYP (ra)) |
| 353 | return scm_from_size_t (SCM_ARRAY_NDIM (ra)); |
| 354 | return SCM_INUM0; |
| 355 | } |
| 356 | } |
| 357 | #undef FUNC_NAME |
| 358 | |
| 359 | |
| 360 | SCM_DEFINE (scm_array_dimensions, "array-dimensions", 1, 0, 0, |
| 361 | (SCM ra), |
| 362 | "@code{Array-dimensions} is similar to @code{array-shape} but replaces\n" |
| 363 | "elements with a @code{0} minimum with one greater than the maximum. So:\n" |
| 364 | "@lisp\n" |
| 365 | "(array-dimensions (make-array 'foo '(-1 3) 5)) @result{} ((-1 3) 5)\n" |
| 366 | "@end lisp") |
| 367 | #define FUNC_NAME s_scm_array_dimensions |
| 368 | { |
| 369 | SCM res = SCM_EOL; |
| 370 | size_t k; |
| 371 | scm_t_array_dim *s; |
| 372 | if (SCM_IMP (ra)) |
| 373 | return SCM_BOOL_F; |
| 374 | switch (SCM_TYP7 (ra)) |
| 375 | { |
| 376 | default: |
| 377 | return SCM_BOOL_F; |
| 378 | case scm_tc7_string: |
| 379 | case scm_tc7_vector: |
| 380 | case scm_tc7_wvect: |
| 381 | case scm_tc7_bvect: |
| 382 | case scm_tc7_byvect: |
| 383 | case scm_tc7_uvect: |
| 384 | case scm_tc7_ivect: |
| 385 | case scm_tc7_fvect: |
| 386 | case scm_tc7_cvect: |
| 387 | case scm_tc7_dvect: |
| 388 | case scm_tc7_svect: |
| 389 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 390 | case scm_tc7_llvect: |
| 391 | #endif |
| 392 | return scm_cons (scm_uniform_vector_length (ra), SCM_EOL); |
| 393 | case scm_tc7_smob: |
| 394 | if (!SCM_ARRAYP (ra)) |
| 395 | return SCM_BOOL_F; |
| 396 | k = SCM_ARRAY_NDIM (ra); |
| 397 | s = SCM_ARRAY_DIMS (ra); |
| 398 | while (k--) |
| 399 | res = scm_cons (s[k].lbnd |
| 400 | ? scm_cons2 (scm_from_long (s[k].lbnd), |
| 401 | scm_from_long (s[k].ubnd), |
| 402 | SCM_EOL) |
| 403 | : scm_from_long (1 + s[k].ubnd), |
| 404 | res); |
| 405 | return res; |
| 406 | } |
| 407 | } |
| 408 | #undef FUNC_NAME |
| 409 | |
| 410 | |
| 411 | SCM_DEFINE (scm_shared_array_root, "shared-array-root", 1, 0, 0, |
| 412 | (SCM ra), |
| 413 | "Return the root vector of a shared array.") |
| 414 | #define FUNC_NAME s_scm_shared_array_root |
| 415 | { |
| 416 | SCM_ASSERT (SCM_ARRAYP (ra), ra, SCM_ARG1, FUNC_NAME); |
| 417 | return SCM_ARRAY_V (ra); |
| 418 | } |
| 419 | #undef FUNC_NAME |
| 420 | |
| 421 | |
| 422 | SCM_DEFINE (scm_shared_array_offset, "shared-array-offset", 1, 0, 0, |
| 423 | (SCM ra), |
| 424 | "Return the root vector index of the first element in the array.") |
| 425 | #define FUNC_NAME s_scm_shared_array_offset |
| 426 | { |
| 427 | SCM_ASSERT (SCM_ARRAYP (ra), ra, SCM_ARG1, FUNC_NAME); |
| 428 | return scm_from_int (SCM_ARRAY_BASE (ra)); |
| 429 | } |
| 430 | #undef FUNC_NAME |
| 431 | |
| 432 | |
| 433 | SCM_DEFINE (scm_shared_array_increments, "shared-array-increments", 1, 0, 0, |
| 434 | (SCM ra), |
| 435 | "For each dimension, return the distance between elements in the root vector.") |
| 436 | #define FUNC_NAME s_scm_shared_array_increments |
| 437 | { |
| 438 | SCM res = SCM_EOL; |
| 439 | size_t k; |
| 440 | scm_t_array_dim *s; |
| 441 | SCM_ASSERT (SCM_ARRAYP (ra), ra, SCM_ARG1, FUNC_NAME); |
| 442 | k = SCM_ARRAY_NDIM (ra); |
| 443 | s = SCM_ARRAY_DIMS (ra); |
| 444 | while (k--) |
| 445 | res = scm_cons (scm_from_long (s[k].inc), res); |
| 446 | return res; |
| 447 | } |
| 448 | #undef FUNC_NAME |
| 449 | |
| 450 | |
| 451 | static char s_bad_ind[] = "Bad scm_array index"; |
| 452 | |
| 453 | |
| 454 | long |
| 455 | scm_aind (SCM ra, SCM args, const char *what) |
| 456 | #define FUNC_NAME what |
| 457 | { |
| 458 | SCM ind; |
| 459 | register long j; |
| 460 | register unsigned long pos = SCM_ARRAY_BASE (ra); |
| 461 | register unsigned long k = SCM_ARRAY_NDIM (ra); |
| 462 | scm_t_array_dim *s = SCM_ARRAY_DIMS (ra); |
| 463 | if (scm_is_integer (args)) |
| 464 | { |
| 465 | if (k != 1) |
| 466 | scm_error_num_args_subr (what); |
| 467 | return pos + (scm_to_long (args) - s->lbnd) * (s->inc); |
| 468 | } |
| 469 | while (k && SCM_CONSP (args)) |
| 470 | { |
| 471 | ind = SCM_CAR (args); |
| 472 | args = SCM_CDR (args); |
| 473 | if (!scm_is_integer (ind)) |
| 474 | scm_misc_error (what, s_bad_ind, SCM_EOL); |
| 475 | j = scm_to_long (ind); |
| 476 | if (j < s->lbnd || j > s->ubnd) |
| 477 | scm_out_of_range (what, ind); |
| 478 | pos += (j - s->lbnd) * (s->inc); |
| 479 | k--; |
| 480 | s++; |
| 481 | } |
| 482 | if (k != 0 || !SCM_NULLP (args)) |
| 483 | scm_error_num_args_subr (what); |
| 484 | |
| 485 | return pos; |
| 486 | } |
| 487 | #undef FUNC_NAME |
| 488 | |
| 489 | |
| 490 | SCM |
| 491 | scm_make_ra (int ndim) |
| 492 | { |
| 493 | SCM ra; |
| 494 | SCM_DEFER_INTS; |
| 495 | SCM_NEWSMOB(ra, ((scm_t_bits) ndim << 17) + scm_tc16_array, |
| 496 | scm_gc_malloc ((sizeof (scm_t_array) + |
| 497 | ndim * sizeof (scm_t_array_dim)), |
| 498 | "array")); |
| 499 | SCM_ARRAY_V (ra) = scm_nullvect; |
| 500 | SCM_ALLOW_INTS; |
| 501 | return ra; |
| 502 | } |
| 503 | |
| 504 | static char s_bad_spec[] = "Bad scm_array dimension"; |
| 505 | /* Increments will still need to be set. */ |
| 506 | |
| 507 | |
| 508 | SCM |
| 509 | scm_shap2ra (SCM args, const char *what) |
| 510 | { |
| 511 | scm_t_array_dim *s; |
| 512 | SCM ra, spec, sp; |
| 513 | int ndim = scm_ilength (args); |
| 514 | if (ndim < 0) |
| 515 | scm_misc_error (what, s_bad_spec, SCM_EOL); |
| 516 | |
| 517 | ra = scm_make_ra (ndim); |
| 518 | SCM_ARRAY_BASE (ra) = 0; |
| 519 | s = SCM_ARRAY_DIMS (ra); |
| 520 | for (; !SCM_NULLP (args); s++, args = SCM_CDR (args)) |
| 521 | { |
| 522 | spec = SCM_CAR (args); |
| 523 | if (scm_is_integer (spec)) |
| 524 | { |
| 525 | if (scm_to_long (spec) < 0) |
| 526 | scm_misc_error (what, s_bad_spec, SCM_EOL); |
| 527 | s->lbnd = 0; |
| 528 | s->ubnd = scm_to_long (spec) - 1; |
| 529 | s->inc = 1; |
| 530 | } |
| 531 | else |
| 532 | { |
| 533 | if (!SCM_CONSP (spec) || !scm_is_integer (SCM_CAR (spec))) |
| 534 | scm_misc_error (what, s_bad_spec, SCM_EOL); |
| 535 | s->lbnd = scm_to_long (SCM_CAR (spec)); |
| 536 | sp = SCM_CDR (spec); |
| 537 | if (!SCM_CONSP (sp) |
| 538 | || !scm_is_integer (SCM_CAR (sp)) |
| 539 | || !SCM_NULLP (SCM_CDR (sp))) |
| 540 | scm_misc_error (what, s_bad_spec, SCM_EOL); |
| 541 | s->ubnd = scm_to_long (SCM_CAR (sp)); |
| 542 | s->inc = 1; |
| 543 | } |
| 544 | } |
| 545 | return ra; |
| 546 | } |
| 547 | |
| 548 | SCM_DEFINE (scm_dimensions_to_uniform_array, "dimensions->uniform-array", 2, 1, 0, |
| 549 | (SCM dims, SCM prot, SCM fill), |
| 550 | "@deffnx {Scheme Procedure} make-uniform-vector length prototype [fill]\n" |
| 551 | "Create and return a uniform array or vector of type\n" |
| 552 | "corresponding to @var{prototype} with dimensions @var{dims} or\n" |
| 553 | "length @var{length}. If @var{fill} is supplied, it's used to\n" |
| 554 | "fill the array, otherwise @var{prototype} is used.") |
| 555 | #define FUNC_NAME s_scm_dimensions_to_uniform_array |
| 556 | { |
| 557 | size_t k; |
| 558 | unsigned long rlen = 1; |
| 559 | scm_t_array_dim *s; |
| 560 | SCM ra; |
| 561 | |
| 562 | if (scm_is_integer (dims)) |
| 563 | { |
| 564 | SCM answer = scm_make_uve (scm_to_long (dims), prot); |
| 565 | if (!SCM_UNBNDP (fill)) |
| 566 | scm_array_fill_x (answer, fill); |
| 567 | else if (scm_is_symbol (prot)) |
| 568 | scm_array_fill_x (answer, scm_from_int (0)); |
| 569 | else |
| 570 | scm_array_fill_x (answer, prot); |
| 571 | return answer; |
| 572 | } |
| 573 | |
| 574 | SCM_ASSERT (SCM_NULLP (dims) || SCM_CONSP (dims), |
| 575 | dims, SCM_ARG1, FUNC_NAME); |
| 576 | ra = scm_shap2ra (dims, FUNC_NAME); |
| 577 | SCM_SET_ARRAY_CONTIGUOUS_FLAG (ra); |
| 578 | s = SCM_ARRAY_DIMS (ra); |
| 579 | k = SCM_ARRAY_NDIM (ra); |
| 580 | |
| 581 | while (k--) |
| 582 | { |
| 583 | s[k].inc = rlen; |
| 584 | SCM_ASSERT_RANGE (1, dims, s[k].lbnd <= s[k].ubnd); |
| 585 | rlen = (s[k].ubnd - s[k].lbnd + 1) * s[k].inc; |
| 586 | } |
| 587 | |
| 588 | SCM_ARRAY_V (ra) = scm_make_uve (rlen, prot); |
| 589 | |
| 590 | if (!SCM_UNBNDP (fill)) |
| 591 | scm_array_fill_x (ra, fill); |
| 592 | else if (scm_is_symbol (prot)) |
| 593 | scm_array_fill_x (ra, scm_from_int (0)); |
| 594 | else |
| 595 | scm_array_fill_x (ra, prot); |
| 596 | |
| 597 | if (1 == SCM_ARRAY_NDIM (ra) && 0 == SCM_ARRAY_BASE (ra)) |
| 598 | if (s->ubnd < s->lbnd || (0 == s->lbnd && 1 == s->inc)) |
| 599 | return SCM_ARRAY_V (ra); |
| 600 | return ra; |
| 601 | } |
| 602 | #undef FUNC_NAME |
| 603 | |
| 604 | |
| 605 | void |
| 606 | scm_ra_set_contp (SCM ra) |
| 607 | { |
| 608 | size_t k = SCM_ARRAY_NDIM (ra); |
| 609 | if (k) |
| 610 | { |
| 611 | long inc = SCM_ARRAY_DIMS (ra)[k - 1].inc; |
| 612 | while (k--) |
| 613 | { |
| 614 | if (inc != SCM_ARRAY_DIMS (ra)[k].inc) |
| 615 | { |
| 616 | SCM_CLR_ARRAY_CONTIGUOUS_FLAG (ra); |
| 617 | return; |
| 618 | } |
| 619 | inc *= (SCM_ARRAY_DIMS (ra)[k].ubnd |
| 620 | - SCM_ARRAY_DIMS (ra)[k].lbnd + 1); |
| 621 | } |
| 622 | } |
| 623 | SCM_SET_ARRAY_CONTIGUOUS_FLAG (ra); |
| 624 | } |
| 625 | |
| 626 | |
| 627 | SCM_DEFINE (scm_make_shared_array, "make-shared-array", 2, 0, 1, |
| 628 | (SCM oldra, SCM mapfunc, SCM dims), |
| 629 | "@code{make-shared-array} can be used to create shared subarrays of other\n" |
| 630 | "arrays. The @var{mapper} is a function that translates coordinates in\n" |
| 631 | "the new array into coordinates in the old array. A @var{mapper} must be\n" |
| 632 | "linear, and its range must stay within the bounds of the old array, but\n" |
| 633 | "it can be otherwise arbitrary. A simple example:\n" |
| 634 | "@lisp\n" |
| 635 | "(define fred (make-array #f 8 8))\n" |
| 636 | "(define freds-diagonal\n" |
| 637 | " (make-shared-array fred (lambda (i) (list i i)) 8))\n" |
| 638 | "(array-set! freds-diagonal 'foo 3)\n" |
| 639 | "(array-ref fred 3 3) @result{} foo\n" |
| 640 | "(define freds-center\n" |
| 641 | " (make-shared-array fred (lambda (i j) (list (+ 3 i) (+ 3 j))) 2 2))\n" |
| 642 | "(array-ref freds-center 0 0) @result{} foo\n" |
| 643 | "@end lisp") |
| 644 | #define FUNC_NAME s_scm_make_shared_array |
| 645 | { |
| 646 | SCM ra; |
| 647 | SCM inds, indptr; |
| 648 | SCM imap; |
| 649 | size_t k, i; |
| 650 | long old_min, new_min, old_max, new_max; |
| 651 | scm_t_array_dim *s; |
| 652 | |
| 653 | SCM_VALIDATE_REST_ARGUMENT (dims); |
| 654 | SCM_VALIDATE_ARRAY (1, oldra); |
| 655 | SCM_VALIDATE_PROC (2, mapfunc); |
| 656 | ra = scm_shap2ra (dims, FUNC_NAME); |
| 657 | if (SCM_ARRAYP (oldra)) |
| 658 | { |
| 659 | SCM_ARRAY_V (ra) = SCM_ARRAY_V (oldra); |
| 660 | old_min = old_max = SCM_ARRAY_BASE (oldra); |
| 661 | s = SCM_ARRAY_DIMS (oldra); |
| 662 | k = SCM_ARRAY_NDIM (oldra); |
| 663 | while (k--) |
| 664 | { |
| 665 | if (s[k].inc > 0) |
| 666 | old_max += (s[k].ubnd - s[k].lbnd) * s[k].inc; |
| 667 | else |
| 668 | old_min += (s[k].ubnd - s[k].lbnd) * s[k].inc; |
| 669 | } |
| 670 | } |
| 671 | else |
| 672 | { |
| 673 | SCM_ARRAY_V (ra) = oldra; |
| 674 | old_min = 0; |
| 675 | old_max = scm_to_long (scm_uniform_vector_length (oldra)) - 1; |
| 676 | } |
| 677 | inds = SCM_EOL; |
| 678 | s = SCM_ARRAY_DIMS (ra); |
| 679 | for (k = 0; k < SCM_ARRAY_NDIM (ra); k++) |
| 680 | { |
| 681 | inds = scm_cons (scm_from_long (s[k].lbnd), inds); |
| 682 | if (s[k].ubnd < s[k].lbnd) |
| 683 | { |
| 684 | if (1 == SCM_ARRAY_NDIM (ra)) |
| 685 | ra = scm_make_uve (0L, scm_array_prototype (ra)); |
| 686 | else |
| 687 | SCM_ARRAY_V (ra) = scm_make_uve (0L, scm_array_prototype (ra)); |
| 688 | return ra; |
| 689 | } |
| 690 | } |
| 691 | imap = scm_apply_0 (mapfunc, scm_reverse (inds)); |
| 692 | if (SCM_ARRAYP (oldra)) |
| 693 | i = (size_t) scm_aind (oldra, imap, FUNC_NAME); |
| 694 | else |
| 695 | { |
| 696 | if (!scm_is_integer (imap)) |
| 697 | { |
| 698 | if (scm_ilength (imap) != 1 || !scm_is_integer (SCM_CAR (imap))) |
| 699 | SCM_MISC_ERROR (s_bad_ind, SCM_EOL); |
| 700 | imap = SCM_CAR (imap); |
| 701 | } |
| 702 | i = scm_to_size_t (imap); |
| 703 | } |
| 704 | SCM_ARRAY_BASE (ra) = new_min = new_max = i; |
| 705 | indptr = inds; |
| 706 | k = SCM_ARRAY_NDIM (ra); |
| 707 | while (k--) |
| 708 | { |
| 709 | if (s[k].ubnd > s[k].lbnd) |
| 710 | { |
| 711 | SCM_SETCAR (indptr, scm_sum (SCM_CAR (indptr), scm_from_int (1))); |
| 712 | imap = scm_apply_0 (mapfunc, scm_reverse (inds)); |
| 713 | if (SCM_ARRAYP (oldra)) |
| 714 | |
| 715 | s[k].inc = scm_aind (oldra, imap, FUNC_NAME) - i; |
| 716 | else |
| 717 | { |
| 718 | if (!scm_is_integer (imap)) |
| 719 | { |
| 720 | if (scm_ilength (imap) != 1 || !scm_is_integer (SCM_CAR (imap))) |
| 721 | SCM_MISC_ERROR (s_bad_ind, SCM_EOL); |
| 722 | imap = SCM_CAR (imap); |
| 723 | } |
| 724 | s[k].inc = scm_to_long (imap) - i; |
| 725 | } |
| 726 | i += s[k].inc; |
| 727 | if (s[k].inc > 0) |
| 728 | new_max += (s[k].ubnd - s[k].lbnd) * s[k].inc; |
| 729 | else |
| 730 | new_min += (s[k].ubnd - s[k].lbnd) * s[k].inc; |
| 731 | } |
| 732 | else |
| 733 | s[k].inc = new_max - new_min + 1; /* contiguous by default */ |
| 734 | indptr = SCM_CDR (indptr); |
| 735 | } |
| 736 | if (old_min > new_min || old_max < new_max) |
| 737 | SCM_MISC_ERROR ("mapping out of range", SCM_EOL); |
| 738 | if (1 == SCM_ARRAY_NDIM (ra) && 0 == SCM_ARRAY_BASE (ra)) |
| 739 | { |
| 740 | SCM v = SCM_ARRAY_V (ra); |
| 741 | unsigned long int length = scm_to_ulong (scm_uniform_vector_length (v)); |
| 742 | if (1 == s->inc && 0 == s->lbnd && length == 1 + s->ubnd) |
| 743 | return v; |
| 744 | if (s->ubnd < s->lbnd) |
| 745 | return scm_make_uve (0L, scm_array_prototype (ra)); |
| 746 | } |
| 747 | scm_ra_set_contp (ra); |
| 748 | return ra; |
| 749 | } |
| 750 | #undef FUNC_NAME |
| 751 | |
| 752 | |
| 753 | /* args are RA . DIMS */ |
| 754 | SCM_DEFINE (scm_transpose_array, "transpose-array", 1, 0, 1, |
| 755 | (SCM ra, SCM args), |
| 756 | "Return an array sharing contents with @var{array}, but with\n" |
| 757 | "dimensions arranged in a different order. There must be one\n" |
| 758 | "@var{dim} argument for each dimension of @var{array}.\n" |
| 759 | "@var{dim0}, @var{dim1}, @dots{} should be integers between 0\n" |
| 760 | "and the rank of the array to be returned. Each integer in that\n" |
| 761 | "range must appear at least once in the argument list.\n" |
| 762 | "\n" |
| 763 | "The values of @var{dim0}, @var{dim1}, @dots{} correspond to\n" |
| 764 | "dimensions in the array to be returned, their positions in the\n" |
| 765 | "argument list to dimensions of @var{array}. Several @var{dim}s\n" |
| 766 | "may have the same value, in which case the returned array will\n" |
| 767 | "have smaller rank than @var{array}.\n" |
| 768 | "\n" |
| 769 | "@lisp\n" |
| 770 | "(transpose-array '#2((a b) (c d)) 1 0) @result{} #2((a c) (b d))\n" |
| 771 | "(transpose-array '#2((a b) (c d)) 0 0) @result{} #1(a d)\n" |
| 772 | "(transpose-array '#3(((a b c) (d e f)) ((1 2 3) (4 5 6))) 1 1 0) @result{}\n" |
| 773 | " #2((a 4) (b 5) (c 6))\n" |
| 774 | "@end lisp") |
| 775 | #define FUNC_NAME s_scm_transpose_array |
| 776 | { |
| 777 | SCM res, vargs; |
| 778 | SCM const *ve = &vargs; |
| 779 | scm_t_array_dim *s, *r; |
| 780 | int ndim, i, k; |
| 781 | |
| 782 | SCM_VALIDATE_REST_ARGUMENT (args); |
| 783 | SCM_ASSERT (SCM_NIMP (ra), ra, SCM_ARG1, FUNC_NAME); |
| 784 | switch (SCM_TYP7 (ra)) |
| 785 | { |
| 786 | default: |
| 787 | badarg:SCM_WRONG_TYPE_ARG (1, ra); |
| 788 | case scm_tc7_bvect: |
| 789 | case scm_tc7_string: |
| 790 | case scm_tc7_byvect: |
| 791 | case scm_tc7_uvect: |
| 792 | case scm_tc7_ivect: |
| 793 | case scm_tc7_fvect: |
| 794 | case scm_tc7_dvect: |
| 795 | case scm_tc7_cvect: |
| 796 | case scm_tc7_svect: |
| 797 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 798 | case scm_tc7_llvect: |
| 799 | #endif |
| 800 | if (SCM_NULLP (args) || !SCM_NULLP (SCM_CDR (args))) |
| 801 | SCM_WRONG_NUM_ARGS (); |
| 802 | SCM_VALIDATE_INT_COPY (SCM_ARG2, SCM_CAR (args), i); |
| 803 | SCM_ASSERT_RANGE (SCM_ARG2, SCM_CAR (args), i == 0); |
| 804 | return ra; |
| 805 | case scm_tc7_smob: |
| 806 | SCM_ASRTGO (SCM_ARRAYP (ra), badarg); |
| 807 | vargs = scm_vector (args); |
| 808 | if (SCM_VECTOR_LENGTH (vargs) != SCM_ARRAY_NDIM (ra)) |
| 809 | SCM_WRONG_NUM_ARGS (); |
| 810 | ve = SCM_VELTS (vargs); |
| 811 | ndim = 0; |
| 812 | for (k = 0; k < SCM_ARRAY_NDIM (ra); k++) |
| 813 | { |
| 814 | i = scm_to_signed_integer (ve[k], 0, SCM_ARRAY_NDIM(ra)); |
| 815 | if (ndim < i) |
| 816 | ndim = i; |
| 817 | } |
| 818 | ndim++; |
| 819 | res = scm_make_ra (ndim); |
| 820 | SCM_ARRAY_V (res) = SCM_ARRAY_V (ra); |
| 821 | SCM_ARRAY_BASE (res) = SCM_ARRAY_BASE (ra); |
| 822 | for (k = ndim; k--;) |
| 823 | { |
| 824 | SCM_ARRAY_DIMS (res)[k].lbnd = 0; |
| 825 | SCM_ARRAY_DIMS (res)[k].ubnd = -1; |
| 826 | } |
| 827 | for (k = SCM_ARRAY_NDIM (ra); k--;) |
| 828 | { |
| 829 | i = scm_to_int (ve[k]); |
| 830 | s = &(SCM_ARRAY_DIMS (ra)[k]); |
| 831 | r = &(SCM_ARRAY_DIMS (res)[i]); |
| 832 | if (r->ubnd < r->lbnd) |
| 833 | { |
| 834 | r->lbnd = s->lbnd; |
| 835 | r->ubnd = s->ubnd; |
| 836 | r->inc = s->inc; |
| 837 | ndim--; |
| 838 | } |
| 839 | else |
| 840 | { |
| 841 | if (r->ubnd > s->ubnd) |
| 842 | r->ubnd = s->ubnd; |
| 843 | if (r->lbnd < s->lbnd) |
| 844 | { |
| 845 | SCM_ARRAY_BASE (res) += (s->lbnd - r->lbnd) * r->inc; |
| 846 | r->lbnd = s->lbnd; |
| 847 | } |
| 848 | r->inc += s->inc; |
| 849 | } |
| 850 | } |
| 851 | if (ndim > 0) |
| 852 | SCM_MISC_ERROR ("bad argument list", SCM_EOL); |
| 853 | scm_ra_set_contp (res); |
| 854 | return res; |
| 855 | } |
| 856 | } |
| 857 | #undef FUNC_NAME |
| 858 | |
| 859 | /* args are RA . AXES */ |
| 860 | SCM_DEFINE (scm_enclose_array, "enclose-array", 1, 0, 1, |
| 861 | (SCM ra, SCM axes), |
| 862 | "@var{dim0}, @var{dim1} @dots{} should be nonnegative integers less than\n" |
| 863 | "the rank of @var{array}. @var{enclose-array} returns an array\n" |
| 864 | "resembling an array of shared arrays. The dimensions of each shared\n" |
| 865 | "array are the same as the @var{dim}th dimensions of the original array,\n" |
| 866 | "the dimensions of the outer array are the same as those of the original\n" |
| 867 | "array that did not match a @var{dim}.\n\n" |
| 868 | "An enclosed array is not a general Scheme array. Its elements may not\n" |
| 869 | "be set using @code{array-set!}. Two references to the same element of\n" |
| 870 | "an enclosed array will be @code{equal?} but will not in general be\n" |
| 871 | "@code{eq?}. The value returned by @var{array-prototype} when given an\n" |
| 872 | "enclosed array is unspecified.\n\n" |
| 873 | "examples:\n" |
| 874 | "@lisp\n" |
| 875 | "(enclose-array '#3(((a b c) (d e f)) ((1 2 3) (4 5 6))) 1) @result{}\n" |
| 876 | " #<enclosed-array (#1(a d) #1(b e) #1(c f)) (#1(1 4) #1(2 5) #1(3 6))>\n\n" |
| 877 | "(enclose-array '#3(((a b c) (d e f)) ((1 2 3) (4 5 6))) 1 0) @result{}\n" |
| 878 | " #<enclosed-array #2((a 1) (d 4)) #2((b 2) (e 5)) #2((c 3) (f 6))>\n" |
| 879 | "@end lisp") |
| 880 | #define FUNC_NAME s_scm_enclose_array |
| 881 | { |
| 882 | SCM axv, res, ra_inr; |
| 883 | const char *c_axv; |
| 884 | scm_t_array_dim vdim, *s = &vdim; |
| 885 | int ndim, j, k, ninr, noutr; |
| 886 | |
| 887 | SCM_VALIDATE_REST_ARGUMENT (axes); |
| 888 | if (SCM_NULLP (axes)) |
| 889 | axes = scm_cons ((SCM_ARRAYP (ra) ? scm_from_size_t (SCM_ARRAY_NDIM (ra) - 1) : SCM_INUM0), SCM_EOL); |
| 890 | ninr = scm_ilength (axes); |
| 891 | if (ninr < 0) |
| 892 | SCM_WRONG_NUM_ARGS (); |
| 893 | ra_inr = scm_make_ra (ninr); |
| 894 | SCM_ASRTGO (SCM_NIMP (ra), badarg1); |
| 895 | switch SCM_TYP7 (ra) |
| 896 | { |
| 897 | default: |
| 898 | badarg1:SCM_WRONG_TYPE_ARG (1, ra); |
| 899 | case scm_tc7_string: |
| 900 | case scm_tc7_bvect: |
| 901 | case scm_tc7_byvect: |
| 902 | case scm_tc7_uvect: |
| 903 | case scm_tc7_ivect: |
| 904 | case scm_tc7_fvect: |
| 905 | case scm_tc7_dvect: |
| 906 | case scm_tc7_cvect: |
| 907 | case scm_tc7_vector: |
| 908 | case scm_tc7_wvect: |
| 909 | case scm_tc7_svect: |
| 910 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 911 | case scm_tc7_llvect: |
| 912 | #endif |
| 913 | s->lbnd = 0; |
| 914 | s->ubnd = scm_to_long (scm_uniform_vector_length (ra)) - 1; |
| 915 | s->inc = 1; |
| 916 | SCM_ARRAY_V (ra_inr) = ra; |
| 917 | SCM_ARRAY_BASE (ra_inr) = 0; |
| 918 | ndim = 1; |
| 919 | break; |
| 920 | case scm_tc7_smob: |
| 921 | SCM_ASRTGO (SCM_ARRAYP (ra), badarg1); |
| 922 | s = SCM_ARRAY_DIMS (ra); |
| 923 | SCM_ARRAY_V (ra_inr) = SCM_ARRAY_V (ra); |
| 924 | SCM_ARRAY_BASE (ra_inr) = SCM_ARRAY_BASE (ra); |
| 925 | ndim = SCM_ARRAY_NDIM (ra); |
| 926 | break; |
| 927 | } |
| 928 | noutr = ndim - ninr; |
| 929 | if (noutr < 0) |
| 930 | SCM_WRONG_NUM_ARGS (); |
| 931 | axv = scm_make_string (scm_from_int (ndim), SCM_MAKE_CHAR (0)); |
| 932 | res = scm_make_ra (noutr); |
| 933 | SCM_ARRAY_BASE (res) = SCM_ARRAY_BASE (ra_inr); |
| 934 | SCM_ARRAY_V (res) = ra_inr; |
| 935 | for (k = 0; k < ninr; k++, axes = SCM_CDR (axes)) |
| 936 | { |
| 937 | if (!scm_is_integer (SCM_CAR (axes))) |
| 938 | SCM_MISC_ERROR ("bad axis", SCM_EOL); |
| 939 | j = scm_to_int (SCM_CAR (axes)); |
| 940 | SCM_ARRAY_DIMS (ra_inr)[k].lbnd = s[j].lbnd; |
| 941 | SCM_ARRAY_DIMS (ra_inr)[k].ubnd = s[j].ubnd; |
| 942 | SCM_ARRAY_DIMS (ra_inr)[k].inc = s[j].inc; |
| 943 | scm_c_string_set_x (axv, j, SCM_MAKE_CHAR (1)); |
| 944 | } |
| 945 | c_axv = scm_i_string_chars (axv); |
| 946 | for (j = 0, k = 0; k < noutr; k++, j++) |
| 947 | { |
| 948 | while (c_axv[j]) |
| 949 | j++; |
| 950 | SCM_ARRAY_DIMS (res)[k].lbnd = s[j].lbnd; |
| 951 | SCM_ARRAY_DIMS (res)[k].ubnd = s[j].ubnd; |
| 952 | SCM_ARRAY_DIMS (res)[k].inc = s[j].inc; |
| 953 | } |
| 954 | scm_remember_upto_here_1 (axv); |
| 955 | scm_ra_set_contp (ra_inr); |
| 956 | scm_ra_set_contp (res); |
| 957 | return res; |
| 958 | } |
| 959 | #undef FUNC_NAME |
| 960 | |
| 961 | |
| 962 | |
| 963 | SCM_DEFINE (scm_array_in_bounds_p, "array-in-bounds?", 1, 0, 1, |
| 964 | (SCM v, SCM args), |
| 965 | "Return @code{#t} if its arguments would be acceptable to\n" |
| 966 | "@code{array-ref}.") |
| 967 | #define FUNC_NAME s_scm_array_in_bounds_p |
| 968 | { |
| 969 | SCM ind = SCM_EOL; |
| 970 | long pos = 0; |
| 971 | register size_t k; |
| 972 | register long j; |
| 973 | scm_t_array_dim *s; |
| 974 | |
| 975 | SCM_VALIDATE_REST_ARGUMENT (args); |
| 976 | SCM_ASRTGO (SCM_NIMP (v), badarg1); |
| 977 | if (SCM_NIMP (args)) |
| 978 | |
| 979 | { |
| 980 | ind = SCM_CAR (args); |
| 981 | args = SCM_CDR (args); |
| 982 | pos = scm_to_long (ind); |
| 983 | } |
| 984 | tail: |
| 985 | switch SCM_TYP7 (v) |
| 986 | { |
| 987 | default: |
| 988 | badarg1:SCM_WRONG_TYPE_ARG (1, v); |
| 989 | wna: SCM_WRONG_NUM_ARGS (); |
| 990 | case scm_tc7_smob: |
| 991 | k = SCM_ARRAY_NDIM (v); |
| 992 | s = SCM_ARRAY_DIMS (v); |
| 993 | pos = SCM_ARRAY_BASE (v); |
| 994 | if (!k) |
| 995 | { |
| 996 | SCM_ASRTGO (SCM_NULLP (ind), wna); |
| 997 | ind = SCM_INUM0; |
| 998 | } |
| 999 | else |
| 1000 | while (!0) |
| 1001 | { |
| 1002 | j = scm_to_long (ind); |
| 1003 | if (!(j >= (s->lbnd) && j <= (s->ubnd))) |
| 1004 | { |
| 1005 | SCM_ASRTGO (--k == scm_ilength (args), wna); |
| 1006 | return SCM_BOOL_F; |
| 1007 | } |
| 1008 | pos += (j - s->lbnd) * (s->inc); |
| 1009 | if (!(--k && SCM_NIMP (args))) |
| 1010 | break; |
| 1011 | ind = SCM_CAR (args); |
| 1012 | args = SCM_CDR (args); |
| 1013 | s++; |
| 1014 | if (!scm_is_integer (ind)) |
| 1015 | SCM_MISC_ERROR (s_bad_ind, SCM_EOL); |
| 1016 | } |
| 1017 | SCM_ASRTGO (0 == k, wna); |
| 1018 | v = SCM_ARRAY_V (v); |
| 1019 | goto tail; |
| 1020 | case scm_tc7_bvect: |
| 1021 | case scm_tc7_string: |
| 1022 | case scm_tc7_byvect: |
| 1023 | case scm_tc7_uvect: |
| 1024 | case scm_tc7_ivect: |
| 1025 | case scm_tc7_fvect: |
| 1026 | case scm_tc7_dvect: |
| 1027 | case scm_tc7_cvect: |
| 1028 | case scm_tc7_svect: |
| 1029 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 1030 | case scm_tc7_llvect: |
| 1031 | #endif |
| 1032 | case scm_tc7_vector: |
| 1033 | case scm_tc7_wvect: |
| 1034 | { |
| 1035 | unsigned long length = scm_to_ulong (scm_uniform_vector_length (v)); |
| 1036 | SCM_ASRTGO (SCM_NULLP (args) && scm_is_integer (ind), wna); |
| 1037 | return scm_from_bool(pos >= 0 && pos < length); |
| 1038 | } |
| 1039 | } |
| 1040 | } |
| 1041 | #undef FUNC_NAME |
| 1042 | |
| 1043 | |
| 1044 | SCM_REGISTER_PROC(s_array_ref, "array-ref", 1, 0, 1, scm_uniform_vector_ref); |
| 1045 | |
| 1046 | |
| 1047 | SCM_DEFINE (scm_uniform_vector_ref, "uniform-vector-ref", 2, 0, 0, |
| 1048 | (SCM v, SCM args), |
| 1049 | "@deffnx {Scheme Procedure} array-ref v . args\n" |
| 1050 | "Return the element at the @code{(index1, index2)} element in\n" |
| 1051 | "@var{array}.") |
| 1052 | #define FUNC_NAME s_scm_uniform_vector_ref |
| 1053 | { |
| 1054 | long pos; |
| 1055 | |
| 1056 | if (SCM_IMP (v)) |
| 1057 | { |
| 1058 | SCM_ASRTGO (SCM_NULLP (args), badarg); |
| 1059 | return v; |
| 1060 | } |
| 1061 | else if (SCM_ARRAYP (v)) |
| 1062 | { |
| 1063 | pos = scm_aind (v, args, FUNC_NAME); |
| 1064 | v = SCM_ARRAY_V (v); |
| 1065 | } |
| 1066 | else |
| 1067 | { |
| 1068 | unsigned long int length; |
| 1069 | if (SCM_NIMP (args)) |
| 1070 | { |
| 1071 | SCM_ASSERT (SCM_CONSP (args), args, SCM_ARG2, FUNC_NAME); |
| 1072 | pos = scm_to_long (SCM_CAR (args)); |
| 1073 | SCM_ASRTGO (SCM_NULLP (SCM_CDR (args)), wna); |
| 1074 | } |
| 1075 | else |
| 1076 | { |
| 1077 | pos = scm_to_long (args); |
| 1078 | } |
| 1079 | length = scm_to_ulong (scm_uniform_vector_length (v)); |
| 1080 | SCM_ASRTGO (pos >= 0 && pos < length, outrng); |
| 1081 | } |
| 1082 | switch SCM_TYP7 (v) |
| 1083 | { |
| 1084 | default: |
| 1085 | if (SCM_NULLP (args)) |
| 1086 | return v; |
| 1087 | badarg: |
| 1088 | SCM_WRONG_TYPE_ARG (1, v); |
| 1089 | /* not reached */ |
| 1090 | |
| 1091 | outrng: |
| 1092 | scm_out_of_range (FUNC_NAME, scm_from_long (pos)); |
| 1093 | wna: |
| 1094 | SCM_WRONG_NUM_ARGS (); |
| 1095 | case scm_tc7_smob: |
| 1096 | { /* enclosed */ |
| 1097 | int k = SCM_ARRAY_NDIM (v); |
| 1098 | SCM res = scm_make_ra (k); |
| 1099 | SCM_ARRAY_V (res) = SCM_ARRAY_V (v); |
| 1100 | SCM_ARRAY_BASE (res) = pos; |
| 1101 | while (k--) |
| 1102 | { |
| 1103 | SCM_ARRAY_DIMS (res)[k].lbnd = SCM_ARRAY_DIMS (v)[k].lbnd; |
| 1104 | SCM_ARRAY_DIMS (res)[k].ubnd = SCM_ARRAY_DIMS (v)[k].ubnd; |
| 1105 | SCM_ARRAY_DIMS (res)[k].inc = SCM_ARRAY_DIMS (v)[k].inc; |
| 1106 | } |
| 1107 | return res; |
| 1108 | } |
| 1109 | case scm_tc7_bvect: |
| 1110 | if (SCM_BITVEC_REF (v, pos)) |
| 1111 | return SCM_BOOL_T; |
| 1112 | else |
| 1113 | return SCM_BOOL_F; |
| 1114 | case scm_tc7_string: |
| 1115 | return scm_c_string_ref (v, pos); |
| 1116 | case scm_tc7_byvect: |
| 1117 | return scm_from_schar (((char *) SCM_UVECTOR_BASE (v))[pos]); |
| 1118 | case scm_tc7_uvect: |
| 1119 | return scm_from_ulong (((unsigned long *) SCM_VELTS (v))[pos]); |
| 1120 | case scm_tc7_ivect: |
| 1121 | return scm_from_long (((signed long *) SCM_VELTS (v))[pos]); |
| 1122 | |
| 1123 | case scm_tc7_svect: |
| 1124 | return scm_from_short (((short *) SCM_CELL_WORD_1 (v))[pos]); |
| 1125 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 1126 | case scm_tc7_llvect: |
| 1127 | return scm_from_long_long (((long long *) SCM_CELL_WORD_1 (v))[pos]); |
| 1128 | #endif |
| 1129 | |
| 1130 | case scm_tc7_fvect: |
| 1131 | return scm_from_double (((float *) SCM_CELL_WORD_1 (v))[pos]); |
| 1132 | case scm_tc7_dvect: |
| 1133 | return scm_from_double (((double *) SCM_CELL_WORD_1 (v))[pos]); |
| 1134 | case scm_tc7_cvect: |
| 1135 | return scm_c_make_rectangular (((double *) SCM_CELL_WORD_1(v))[2*pos], |
| 1136 | ((double *) SCM_CELL_WORD_1(v))[2*pos+1]); |
| 1137 | case scm_tc7_vector: |
| 1138 | case scm_tc7_wvect: |
| 1139 | return SCM_VELTS (v)[pos]; |
| 1140 | } |
| 1141 | } |
| 1142 | #undef FUNC_NAME |
| 1143 | |
| 1144 | /* Internal version of scm_uniform_vector_ref for uves that does no error checking and |
| 1145 | tries to recycle conses. (Make *sure* you want them recycled.) */ |
| 1146 | |
| 1147 | SCM |
| 1148 | scm_cvref (SCM v, unsigned long pos, SCM last) |
| 1149 | #define FUNC_NAME "scm_cvref" |
| 1150 | { |
| 1151 | switch SCM_TYP7 (v) |
| 1152 | { |
| 1153 | default: |
| 1154 | SCM_WRONG_TYPE_ARG (SCM_ARG1, v); |
| 1155 | case scm_tc7_bvect: |
| 1156 | if (SCM_BITVEC_REF(v, pos)) |
| 1157 | return SCM_BOOL_T; |
| 1158 | else |
| 1159 | return SCM_BOOL_F; |
| 1160 | case scm_tc7_string: |
| 1161 | return scm_c_string_ref (v, pos); |
| 1162 | case scm_tc7_byvect: |
| 1163 | return scm_from_char (((char *) SCM_UVECTOR_BASE (v))[pos]); |
| 1164 | case scm_tc7_uvect: |
| 1165 | return scm_from_ulong (((unsigned long *) SCM_VELTS (v))[pos]); |
| 1166 | case scm_tc7_ivect: |
| 1167 | return scm_from_long (((signed long *) SCM_VELTS (v))[pos]); |
| 1168 | case scm_tc7_svect: |
| 1169 | return scm_from_short (((short *) SCM_CELL_WORD_1 (v))[pos]); |
| 1170 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 1171 | case scm_tc7_llvect: |
| 1172 | return scm_from_long_long (((long long *) SCM_CELL_WORD_1 (v))[pos]); |
| 1173 | #endif |
| 1174 | case scm_tc7_fvect: |
| 1175 | if (SCM_REALP (last) && !scm_is_eq (last, scm_flo0)) |
| 1176 | { |
| 1177 | SCM_REAL_VALUE (last) = ((float *) SCM_CELL_WORD_1 (v))[pos]; |
| 1178 | return last; |
| 1179 | } |
| 1180 | return scm_from_double (((float *) SCM_CELL_WORD_1 (v))[pos]); |
| 1181 | case scm_tc7_dvect: |
| 1182 | if (SCM_REALP (last) && !scm_is_eq (last, scm_flo0)) |
| 1183 | { |
| 1184 | SCM_REAL_VALUE (last) = ((double *) SCM_CELL_WORD_1 (v))[pos]; |
| 1185 | return last; |
| 1186 | } |
| 1187 | return scm_from_double (((double *) SCM_CELL_WORD_1 (v))[pos]); |
| 1188 | case scm_tc7_cvect: |
| 1189 | if (SCM_COMPLEXP (last)) |
| 1190 | { |
| 1191 | SCM_COMPLEX_REAL (last) = ((double *) SCM_CELL_WORD_1 (v))[2 * pos]; |
| 1192 | SCM_COMPLEX_IMAG (last) = ((double *) SCM_CELL_WORD_1 (v))[2 * pos + 1]; |
| 1193 | return last; |
| 1194 | } |
| 1195 | return scm_c_make_rectangular (((double *) SCM_CELL_WORD_1(v))[2*pos], |
| 1196 | ((double *) SCM_CELL_WORD_1(v))[2*pos+1]); |
| 1197 | case scm_tc7_vector: |
| 1198 | case scm_tc7_wvect: |
| 1199 | return SCM_VELTS (v)[pos]; |
| 1200 | case scm_tc7_smob: |
| 1201 | { /* enclosed scm_array */ |
| 1202 | int k = SCM_ARRAY_NDIM (v); |
| 1203 | SCM res = scm_make_ra (k); |
| 1204 | SCM_ARRAY_V (res) = SCM_ARRAY_V (v); |
| 1205 | SCM_ARRAY_BASE (res) = pos; |
| 1206 | while (k--) |
| 1207 | { |
| 1208 | SCM_ARRAY_DIMS (res)[k].ubnd = SCM_ARRAY_DIMS (v)[k].ubnd; |
| 1209 | SCM_ARRAY_DIMS (res)[k].lbnd = SCM_ARRAY_DIMS (v)[k].lbnd; |
| 1210 | SCM_ARRAY_DIMS (res)[k].inc = SCM_ARRAY_DIMS (v)[k].inc; |
| 1211 | } |
| 1212 | return res; |
| 1213 | } |
| 1214 | } |
| 1215 | } |
| 1216 | #undef FUNC_NAME |
| 1217 | |
| 1218 | |
| 1219 | SCM_REGISTER_PROC(s_uniform_array_set1_x, "uniform-array-set1!", 3, 0, 0, scm_array_set_x); |
| 1220 | |
| 1221 | |
| 1222 | /* Note that args may be a list or an immediate object, depending which |
| 1223 | PROC is used (and it's called from C too). */ |
| 1224 | SCM_DEFINE (scm_array_set_x, "array-set!", 2, 0, 1, |
| 1225 | (SCM v, SCM obj, SCM args), |
| 1226 | "@deffnx {Scheme Procedure} uniform-array-set1! v obj args\n" |
| 1227 | "Set the element at the @code{(index1, index2)} element in @var{array} to\n" |
| 1228 | "@var{new-value}. The value returned by array-set! is unspecified.") |
| 1229 | #define FUNC_NAME s_scm_array_set_x |
| 1230 | { |
| 1231 | long pos = 0; |
| 1232 | |
| 1233 | SCM_ASRTGO (SCM_NIMP (v), badarg1); |
| 1234 | if (SCM_ARRAYP (v)) |
| 1235 | { |
| 1236 | pos = scm_aind (v, args, FUNC_NAME); |
| 1237 | v = SCM_ARRAY_V (v); |
| 1238 | } |
| 1239 | else |
| 1240 | { |
| 1241 | unsigned long int length; |
| 1242 | if (SCM_CONSP (args)) |
| 1243 | { |
| 1244 | SCM_ASRTGO (SCM_NULLP (SCM_CDR (args)), wna); |
| 1245 | pos = scm_to_long (SCM_CAR (args)); |
| 1246 | } |
| 1247 | else |
| 1248 | { |
| 1249 | pos = scm_to_long (args); |
| 1250 | } |
| 1251 | length = scm_to_ulong (scm_uniform_vector_length (v)); |
| 1252 | SCM_ASRTGO (pos >= 0 && pos < length, outrng); |
| 1253 | } |
| 1254 | switch (SCM_TYP7 (v)) |
| 1255 | { |
| 1256 | default: badarg1: |
| 1257 | SCM_WRONG_TYPE_ARG (1, v); |
| 1258 | /* not reached */ |
| 1259 | outrng: |
| 1260 | scm_out_of_range (FUNC_NAME, scm_from_long (pos)); |
| 1261 | wna: |
| 1262 | SCM_WRONG_NUM_ARGS (); |
| 1263 | case scm_tc7_smob: /* enclosed */ |
| 1264 | goto badarg1; |
| 1265 | case scm_tc7_bvect: |
| 1266 | if (scm_is_false (obj)) |
| 1267 | SCM_BITVEC_CLR(v, pos); |
| 1268 | else if (scm_is_eq (obj, SCM_BOOL_T)) |
| 1269 | SCM_BITVEC_SET(v, pos); |
| 1270 | else |
| 1271 | badobj:SCM_WRONG_TYPE_ARG (2, obj); |
| 1272 | break; |
| 1273 | case scm_tc7_string: |
| 1274 | SCM_ASRTGO (SCM_CHARP (obj), badobj); |
| 1275 | scm_c_string_set_x (v, pos, obj); |
| 1276 | break; |
| 1277 | case scm_tc7_byvect: |
| 1278 | if (SCM_CHARP (obj)) |
| 1279 | obj = scm_from_schar ((char) SCM_CHAR (obj)); |
| 1280 | ((char *) SCM_UVECTOR_BASE (v))[pos] = scm_to_schar (obj); |
| 1281 | break; |
| 1282 | case scm_tc7_uvect: |
| 1283 | ((unsigned long *) SCM_UVECTOR_BASE (v))[pos] = scm_to_ulong (obj); |
| 1284 | break; |
| 1285 | case scm_tc7_ivect: |
| 1286 | ((long *) SCM_UVECTOR_BASE (v))[pos] = scm_to_long (obj); |
| 1287 | break; |
| 1288 | case scm_tc7_svect: |
| 1289 | ((short *) SCM_UVECTOR_BASE (v))[pos] = scm_to_short (obj); |
| 1290 | break; |
| 1291 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 1292 | case scm_tc7_llvect: |
| 1293 | ((long long *) SCM_UVECTOR_BASE (v))[pos] = scm_to_long_long (obj); |
| 1294 | break; |
| 1295 | #endif |
| 1296 | case scm_tc7_fvect: |
| 1297 | ((float *) SCM_UVECTOR_BASE (v))[pos] = scm_to_double (obj); |
| 1298 | break; |
| 1299 | case scm_tc7_dvect: |
| 1300 | ((double *) SCM_UVECTOR_BASE (v))[pos] = scm_to_double (obj); |
| 1301 | break; |
| 1302 | case scm_tc7_cvect: |
| 1303 | SCM_ASRTGO (SCM_INEXACTP (obj), badobj); |
| 1304 | if (SCM_REALP (obj)) { |
| 1305 | ((double *) SCM_UVECTOR_BASE (v))[2 * pos] = SCM_REAL_VALUE (obj); |
| 1306 | ((double *) SCM_UVECTOR_BASE (v))[2 * pos + 1] = 0.0; |
| 1307 | } else { |
| 1308 | ((double *) SCM_UVECTOR_BASE (v))[2 * pos] = SCM_COMPLEX_REAL (obj); |
| 1309 | ((double *) SCM_UVECTOR_BASE (v))[2 * pos + 1] = SCM_COMPLEX_IMAG (obj); |
| 1310 | } |
| 1311 | break; |
| 1312 | case scm_tc7_vector: |
| 1313 | case scm_tc7_wvect: |
| 1314 | SCM_VECTOR_SET (v, pos, obj); |
| 1315 | break; |
| 1316 | } |
| 1317 | return SCM_UNSPECIFIED; |
| 1318 | } |
| 1319 | #undef FUNC_NAME |
| 1320 | |
| 1321 | /* attempts to unroll an array into a one-dimensional array. |
| 1322 | returns the unrolled array or #f if it can't be done. */ |
| 1323 | /* if strict is not SCM_UNDEFINED, return #f if returned array |
| 1324 | wouldn't have contiguous elements. */ |
| 1325 | SCM_DEFINE (scm_array_contents, "array-contents", 1, 1, 0, |
| 1326 | (SCM ra, SCM strict), |
| 1327 | "If @var{array} may be @dfn{unrolled} into a one dimensional shared array\n" |
| 1328 | "without changing their order (last subscript changing fastest), then\n" |
| 1329 | "@code{array-contents} returns that shared array, otherwise it returns\n" |
| 1330 | "@code{#f}. All arrays made by @var{make-array} and\n" |
| 1331 | "@var{make-uniform-array} may be unrolled, some arrays made by\n" |
| 1332 | "@var{make-shared-array} may not be.\n\n" |
| 1333 | "If the optional argument @var{strict} is provided, a shared array will\n" |
| 1334 | "be returned only if its elements are stored internally contiguous in\n" |
| 1335 | "memory.") |
| 1336 | #define FUNC_NAME s_scm_array_contents |
| 1337 | { |
| 1338 | SCM sra; |
| 1339 | if (SCM_IMP (ra)) |
| 1340 | return SCM_BOOL_F; |
| 1341 | switch SCM_TYP7 (ra) |
| 1342 | { |
| 1343 | default: |
| 1344 | return SCM_BOOL_F; |
| 1345 | case scm_tc7_vector: |
| 1346 | case scm_tc7_wvect: |
| 1347 | case scm_tc7_string: |
| 1348 | case scm_tc7_bvect: |
| 1349 | case scm_tc7_byvect: |
| 1350 | case scm_tc7_uvect: |
| 1351 | case scm_tc7_ivect: |
| 1352 | case scm_tc7_fvect: |
| 1353 | case scm_tc7_dvect: |
| 1354 | case scm_tc7_cvect: |
| 1355 | case scm_tc7_svect: |
| 1356 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 1357 | case scm_tc7_llvect: |
| 1358 | #endif |
| 1359 | return ra; |
| 1360 | case scm_tc7_smob: |
| 1361 | { |
| 1362 | size_t k, ndim = SCM_ARRAY_NDIM (ra), len = 1; |
| 1363 | if (!SCM_ARRAYP (ra) || !SCM_ARRAY_CONTP (ra)) |
| 1364 | return SCM_BOOL_F; |
| 1365 | for (k = 0; k < ndim; k++) |
| 1366 | len *= SCM_ARRAY_DIMS (ra)[k].ubnd - SCM_ARRAY_DIMS (ra)[k].lbnd + 1; |
| 1367 | if (!SCM_UNBNDP (strict)) |
| 1368 | { |
| 1369 | if (ndim && (1 != SCM_ARRAY_DIMS (ra)[ndim - 1].inc)) |
| 1370 | return SCM_BOOL_F; |
| 1371 | if (scm_tc7_bvect == SCM_TYP7 (SCM_ARRAY_V (ra))) |
| 1372 | { |
| 1373 | if (len != SCM_BITVECTOR_LENGTH (SCM_ARRAY_V (ra)) || |
| 1374 | SCM_ARRAY_BASE (ra) % SCM_LONG_BIT || |
| 1375 | len % SCM_LONG_BIT) |
| 1376 | return SCM_BOOL_F; |
| 1377 | } |
| 1378 | } |
| 1379 | |
| 1380 | { |
| 1381 | SCM v = SCM_ARRAY_V (ra); |
| 1382 | unsigned long length = scm_to_ulong (scm_uniform_vector_length (v)); |
| 1383 | if ((len == length) && 0 == SCM_ARRAY_BASE (ra) && SCM_ARRAY_DIMS (ra)->inc) |
| 1384 | return v; |
| 1385 | } |
| 1386 | |
| 1387 | sra = scm_make_ra (1); |
| 1388 | SCM_ARRAY_DIMS (sra)->lbnd = 0; |
| 1389 | SCM_ARRAY_DIMS (sra)->ubnd = len - 1; |
| 1390 | SCM_ARRAY_V (sra) = SCM_ARRAY_V (ra); |
| 1391 | SCM_ARRAY_BASE (sra) = SCM_ARRAY_BASE (ra); |
| 1392 | SCM_ARRAY_DIMS (sra)->inc = (ndim ? SCM_ARRAY_DIMS (ra)[ndim - 1].inc : 1); |
| 1393 | return sra; |
| 1394 | } |
| 1395 | } |
| 1396 | } |
| 1397 | #undef FUNC_NAME |
| 1398 | |
| 1399 | |
| 1400 | SCM |
| 1401 | scm_ra2contig (SCM ra, int copy) |
| 1402 | { |
| 1403 | SCM ret; |
| 1404 | long inc = 1; |
| 1405 | size_t k, len = 1; |
| 1406 | for (k = SCM_ARRAY_NDIM (ra); k--;) |
| 1407 | len *= SCM_ARRAY_DIMS (ra)[k].ubnd - SCM_ARRAY_DIMS (ra)[k].lbnd + 1; |
| 1408 | k = SCM_ARRAY_NDIM (ra); |
| 1409 | if (SCM_ARRAY_CONTP (ra) && ((0 == k) || (1 == SCM_ARRAY_DIMS (ra)[k - 1].inc))) |
| 1410 | { |
| 1411 | if (scm_tc7_bvect != SCM_TYP7 (SCM_ARRAY_V (ra))) |
| 1412 | return ra; |
| 1413 | if ((len == SCM_BITVECTOR_LENGTH (SCM_ARRAY_V (ra)) && |
| 1414 | 0 == SCM_ARRAY_BASE (ra) % SCM_LONG_BIT && |
| 1415 | 0 == len % SCM_LONG_BIT)) |
| 1416 | return ra; |
| 1417 | } |
| 1418 | ret = scm_make_ra (k); |
| 1419 | SCM_ARRAY_BASE (ret) = 0; |
| 1420 | while (k--) |
| 1421 | { |
| 1422 | SCM_ARRAY_DIMS (ret)[k].lbnd = SCM_ARRAY_DIMS (ra)[k].lbnd; |
| 1423 | SCM_ARRAY_DIMS (ret)[k].ubnd = SCM_ARRAY_DIMS (ra)[k].ubnd; |
| 1424 | SCM_ARRAY_DIMS (ret)[k].inc = inc; |
| 1425 | inc *= SCM_ARRAY_DIMS (ra)[k].ubnd - SCM_ARRAY_DIMS (ra)[k].lbnd + 1; |
| 1426 | } |
| 1427 | SCM_ARRAY_V (ret) = scm_make_uve (inc, scm_array_prototype (ra)); |
| 1428 | if (copy) |
| 1429 | scm_array_copy_x (ra, ret); |
| 1430 | return ret; |
| 1431 | } |
| 1432 | |
| 1433 | |
| 1434 | |
| 1435 | SCM_DEFINE (scm_uniform_array_read_x, "uniform-array-read!", 1, 3, 0, |
| 1436 | (SCM ra, SCM port_or_fd, SCM start, SCM end), |
| 1437 | "@deffnx {Scheme Procedure} uniform-vector-read! uve [port-or-fdes] [start] [end]\n" |
| 1438 | "Attempt to read all elements of @var{ura}, in lexicographic order, as\n" |
| 1439 | "binary objects from @var{port-or-fdes}.\n" |
| 1440 | "If an end of file is encountered,\n" |
| 1441 | "the objects up to that point are put into @var{ura}\n" |
| 1442 | "(starting at the beginning) and the remainder of the array is\n" |
| 1443 | "unchanged.\n\n" |
| 1444 | "The optional arguments @var{start} and @var{end} allow\n" |
| 1445 | "a specified region of a vector (or linearized array) to be read,\n" |
| 1446 | "leaving the remainder of the vector unchanged.\n\n" |
| 1447 | "@code{uniform-array-read!} returns the number of objects read.\n" |
| 1448 | "@var{port-or-fdes} may be omitted, in which case it defaults to the value\n" |
| 1449 | "returned by @code{(current-input-port)}.") |
| 1450 | #define FUNC_NAME s_scm_uniform_array_read_x |
| 1451 | { |
| 1452 | SCM cra = SCM_UNDEFINED, v = ra; |
| 1453 | long sz, vlen, ans; |
| 1454 | long cstart = 0; |
| 1455 | long cend; |
| 1456 | long offset = 0; |
| 1457 | char *base; |
| 1458 | |
| 1459 | SCM_ASRTGO (SCM_NIMP (v), badarg1); |
| 1460 | if (SCM_UNBNDP (port_or_fd)) |
| 1461 | port_or_fd = scm_cur_inp; |
| 1462 | else |
| 1463 | SCM_ASSERT (scm_is_integer (port_or_fd) |
| 1464 | || (SCM_OPINPORTP (port_or_fd)), |
| 1465 | port_or_fd, SCM_ARG2, FUNC_NAME); |
| 1466 | vlen = (SCM_TYP7 (v) == scm_tc7_smob |
| 1467 | ? 0 |
| 1468 | : scm_to_long (scm_uniform_vector_length (v))); |
| 1469 | |
| 1470 | loop: |
| 1471 | switch SCM_TYP7 (v) |
| 1472 | { |
| 1473 | default: |
| 1474 | badarg1:SCM_WRONG_TYPE_ARG (SCM_ARG1, v); |
| 1475 | case scm_tc7_smob: |
| 1476 | SCM_ASRTGO (SCM_ARRAYP (v), badarg1); |
| 1477 | cra = scm_ra2contig (ra, 0); |
| 1478 | cstart += SCM_ARRAY_BASE (cra); |
| 1479 | vlen = SCM_ARRAY_DIMS (cra)->inc * |
| 1480 | (SCM_ARRAY_DIMS (cra)->ubnd - SCM_ARRAY_DIMS (cra)->lbnd + 1); |
| 1481 | v = SCM_ARRAY_V (cra); |
| 1482 | goto loop; |
| 1483 | case scm_tc7_string: |
| 1484 | base = NULL; /* writing to strings is special, see below. */ |
| 1485 | sz = sizeof (char); |
| 1486 | break; |
| 1487 | case scm_tc7_bvect: |
| 1488 | base = (char *) SCM_BITVECTOR_BASE (v); |
| 1489 | vlen = (vlen + SCM_LONG_BIT - 1) / SCM_LONG_BIT; |
| 1490 | cstart /= SCM_LONG_BIT; |
| 1491 | sz = sizeof (long); |
| 1492 | break; |
| 1493 | case scm_tc7_byvect: |
| 1494 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1495 | sz = sizeof (char); |
| 1496 | break; |
| 1497 | case scm_tc7_uvect: |
| 1498 | case scm_tc7_ivect: |
| 1499 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1500 | sz = sizeof (long); |
| 1501 | break; |
| 1502 | case scm_tc7_svect: |
| 1503 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1504 | sz = sizeof (short); |
| 1505 | break; |
| 1506 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 1507 | case scm_tc7_llvect: |
| 1508 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1509 | sz = sizeof (long long); |
| 1510 | break; |
| 1511 | #endif |
| 1512 | case scm_tc7_fvect: |
| 1513 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1514 | sz = sizeof (float); |
| 1515 | break; |
| 1516 | case scm_tc7_dvect: |
| 1517 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1518 | sz = sizeof (double); |
| 1519 | break; |
| 1520 | case scm_tc7_cvect: |
| 1521 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1522 | sz = 2 * sizeof (double); |
| 1523 | break; |
| 1524 | } |
| 1525 | |
| 1526 | cend = vlen; |
| 1527 | if (!SCM_UNBNDP (start)) |
| 1528 | { |
| 1529 | offset = |
| 1530 | SCM_NUM2LONG (3, start); |
| 1531 | |
| 1532 | if (offset < 0 || offset >= cend) |
| 1533 | scm_out_of_range (FUNC_NAME, start); |
| 1534 | |
| 1535 | if (!SCM_UNBNDP (end)) |
| 1536 | { |
| 1537 | long tend = |
| 1538 | SCM_NUM2LONG (4, end); |
| 1539 | |
| 1540 | if (tend <= offset || tend > cend) |
| 1541 | scm_out_of_range (FUNC_NAME, end); |
| 1542 | cend = tend; |
| 1543 | } |
| 1544 | } |
| 1545 | |
| 1546 | if (SCM_NIMP (port_or_fd)) |
| 1547 | { |
| 1548 | scm_t_port *pt = SCM_PTAB_ENTRY (port_or_fd); |
| 1549 | int remaining = (cend - offset) * sz; |
| 1550 | size_t off = (cstart + offset) * sz; |
| 1551 | |
| 1552 | if (pt->rw_active == SCM_PORT_WRITE) |
| 1553 | scm_flush (port_or_fd); |
| 1554 | |
| 1555 | ans = cend - offset; |
| 1556 | while (remaining > 0) |
| 1557 | { |
| 1558 | if (pt->read_pos < pt->read_end) |
| 1559 | { |
| 1560 | int to_copy = min (pt->read_end - pt->read_pos, |
| 1561 | remaining); |
| 1562 | |
| 1563 | if (base == NULL) |
| 1564 | { |
| 1565 | /* strings */ |
| 1566 | char *b = scm_i_string_writable_chars (v); |
| 1567 | memcpy (b + off, pt->read_pos, to_copy); |
| 1568 | scm_i_string_stop_writing (); |
| 1569 | } |
| 1570 | else |
| 1571 | memcpy (base + off, pt->read_pos, to_copy); |
| 1572 | pt->read_pos += to_copy; |
| 1573 | remaining -= to_copy; |
| 1574 | off += to_copy; |
| 1575 | } |
| 1576 | else |
| 1577 | { |
| 1578 | if (scm_fill_input (port_or_fd) == EOF) |
| 1579 | { |
| 1580 | if (remaining % sz != 0) |
| 1581 | { |
| 1582 | SCM_MISC_ERROR ("unexpected EOF", SCM_EOL); |
| 1583 | } |
| 1584 | ans -= remaining / sz; |
| 1585 | break; |
| 1586 | } |
| 1587 | } |
| 1588 | } |
| 1589 | |
| 1590 | if (pt->rw_random) |
| 1591 | pt->rw_active = SCM_PORT_READ; |
| 1592 | } |
| 1593 | else /* file descriptor. */ |
| 1594 | { |
| 1595 | if (base == NULL) |
| 1596 | { |
| 1597 | /* strings */ |
| 1598 | char *b = scm_i_string_writable_chars (v); |
| 1599 | SCM_SYSCALL (ans = read (scm_to_int (port_or_fd), |
| 1600 | b + (cstart + offset) * sz, |
| 1601 | (sz * (cend - offset)))); |
| 1602 | scm_i_string_stop_writing (); |
| 1603 | } |
| 1604 | else |
| 1605 | SCM_SYSCALL (ans = read (scm_to_int (port_or_fd), |
| 1606 | base + (cstart + offset) * sz, |
| 1607 | (sz * (cend - offset)))); |
| 1608 | if (ans == -1) |
| 1609 | SCM_SYSERROR; |
| 1610 | } |
| 1611 | if (SCM_TYP7 (v) == scm_tc7_bvect) |
| 1612 | ans *= SCM_LONG_BIT; |
| 1613 | |
| 1614 | if (!scm_is_eq (v, ra) && !scm_is_eq (cra, ra)) |
| 1615 | scm_array_copy_x (cra, ra); |
| 1616 | |
| 1617 | return scm_from_long (ans); |
| 1618 | } |
| 1619 | #undef FUNC_NAME |
| 1620 | |
| 1621 | SCM_DEFINE (scm_uniform_array_write, "uniform-array-write", 1, 3, 0, |
| 1622 | (SCM v, SCM port_or_fd, SCM start, SCM end), |
| 1623 | "@deffnx {Scheme Procedure} uniform-vector-write uve [port-or-fdes] [start] [end]\n" |
| 1624 | "Writes all elements of @var{ura} as binary objects to\n" |
| 1625 | "@var{port-or-fdes}.\n\n" |
| 1626 | "The optional arguments @var{start}\n" |
| 1627 | "and @var{end} allow\n" |
| 1628 | "a specified region of a vector (or linearized array) to be written.\n\n" |
| 1629 | "The number of objects actually written is returned.\n" |
| 1630 | "@var{port-or-fdes} may be\n" |
| 1631 | "omitted, in which case it defaults to the value returned by\n" |
| 1632 | "@code{(current-output-port)}.") |
| 1633 | #define FUNC_NAME s_scm_uniform_array_write |
| 1634 | { |
| 1635 | long sz, vlen, ans; |
| 1636 | long offset = 0; |
| 1637 | long cstart = 0; |
| 1638 | long cend; |
| 1639 | const char *base; |
| 1640 | |
| 1641 | port_or_fd = SCM_COERCE_OUTPORT (port_or_fd); |
| 1642 | |
| 1643 | SCM_ASRTGO (SCM_NIMP (v), badarg1); |
| 1644 | if (SCM_UNBNDP (port_or_fd)) |
| 1645 | port_or_fd = scm_cur_outp; |
| 1646 | else |
| 1647 | SCM_ASSERT (scm_is_integer (port_or_fd) |
| 1648 | || (SCM_OPOUTPORTP (port_or_fd)), |
| 1649 | port_or_fd, SCM_ARG2, FUNC_NAME); |
| 1650 | vlen = (SCM_TYP7 (v) == scm_tc7_smob |
| 1651 | ? 0 |
| 1652 | : scm_to_long (scm_uniform_vector_length (v))); |
| 1653 | |
| 1654 | loop: |
| 1655 | switch SCM_TYP7 (v) |
| 1656 | { |
| 1657 | default: |
| 1658 | badarg1:SCM_WRONG_TYPE_ARG (1, v); |
| 1659 | case scm_tc7_smob: |
| 1660 | SCM_ASRTGO (SCM_ARRAYP (v), badarg1); |
| 1661 | v = scm_ra2contig (v, 1); |
| 1662 | cstart = SCM_ARRAY_BASE (v); |
| 1663 | vlen = (SCM_ARRAY_DIMS (v)->inc |
| 1664 | * (SCM_ARRAY_DIMS (v)->ubnd - SCM_ARRAY_DIMS (v)->lbnd + 1)); |
| 1665 | v = SCM_ARRAY_V (v); |
| 1666 | goto loop; |
| 1667 | case scm_tc7_string: |
| 1668 | base = scm_i_string_chars (v); |
| 1669 | sz = sizeof (char); |
| 1670 | break; |
| 1671 | case scm_tc7_bvect: |
| 1672 | base = (char *) SCM_BITVECTOR_BASE (v); |
| 1673 | vlen = (vlen + SCM_LONG_BIT - 1) / SCM_LONG_BIT; |
| 1674 | cstart /= SCM_LONG_BIT; |
| 1675 | sz = sizeof (long); |
| 1676 | break; |
| 1677 | case scm_tc7_byvect: |
| 1678 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1679 | sz = sizeof (char); |
| 1680 | break; |
| 1681 | case scm_tc7_uvect: |
| 1682 | case scm_tc7_ivect: |
| 1683 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1684 | sz = sizeof (long); |
| 1685 | break; |
| 1686 | case scm_tc7_svect: |
| 1687 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1688 | sz = sizeof (short); |
| 1689 | break; |
| 1690 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 1691 | case scm_tc7_llvect: |
| 1692 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1693 | sz = sizeof (long long); |
| 1694 | break; |
| 1695 | #endif |
| 1696 | case scm_tc7_fvect: |
| 1697 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1698 | sz = sizeof (float); |
| 1699 | break; |
| 1700 | case scm_tc7_dvect: |
| 1701 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1702 | sz = sizeof (double); |
| 1703 | break; |
| 1704 | case scm_tc7_cvect: |
| 1705 | base = (char *) SCM_UVECTOR_BASE (v); |
| 1706 | sz = 2 * sizeof (double); |
| 1707 | break; |
| 1708 | } |
| 1709 | |
| 1710 | cend = vlen; |
| 1711 | if (!SCM_UNBNDP (start)) |
| 1712 | { |
| 1713 | offset = |
| 1714 | SCM_NUM2LONG (3, start); |
| 1715 | |
| 1716 | if (offset < 0 || offset >= cend) |
| 1717 | scm_out_of_range (FUNC_NAME, start); |
| 1718 | |
| 1719 | if (!SCM_UNBNDP (end)) |
| 1720 | { |
| 1721 | long tend = |
| 1722 | SCM_NUM2LONG (4, end); |
| 1723 | |
| 1724 | if (tend <= offset || tend > cend) |
| 1725 | scm_out_of_range (FUNC_NAME, end); |
| 1726 | cend = tend; |
| 1727 | } |
| 1728 | } |
| 1729 | |
| 1730 | if (SCM_NIMP (port_or_fd)) |
| 1731 | { |
| 1732 | const char *source = base + (cstart + offset) * sz; |
| 1733 | |
| 1734 | ans = cend - offset; |
| 1735 | scm_lfwrite (source, ans * sz, port_or_fd); |
| 1736 | } |
| 1737 | else /* file descriptor. */ |
| 1738 | { |
| 1739 | SCM_SYSCALL (ans = write (scm_to_int (port_or_fd), |
| 1740 | base + (cstart + offset) * sz, |
| 1741 | (sz * (cend - offset)))); |
| 1742 | if (ans == -1) |
| 1743 | SCM_SYSERROR; |
| 1744 | } |
| 1745 | if (SCM_TYP7 (v) == scm_tc7_bvect) |
| 1746 | ans *= SCM_LONG_BIT; |
| 1747 | |
| 1748 | return scm_from_long (ans); |
| 1749 | } |
| 1750 | #undef FUNC_NAME |
| 1751 | |
| 1752 | |
| 1753 | static char cnt_tab[16] = |
| 1754 | {0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4}; |
| 1755 | |
| 1756 | SCM_DEFINE (scm_bit_count, "bit-count", 2, 0, 0, |
| 1757 | (SCM b, SCM bitvector), |
| 1758 | "Return the number of occurrences of the boolean @var{b} in\n" |
| 1759 | "@var{bitvector}.") |
| 1760 | #define FUNC_NAME s_scm_bit_count |
| 1761 | { |
| 1762 | SCM_VALIDATE_BOOL (1, b); |
| 1763 | SCM_ASSERT (SCM_BITVECTOR_P (bitvector), bitvector, 2, FUNC_NAME); |
| 1764 | if (SCM_BITVECTOR_LENGTH (bitvector) == 0) { |
| 1765 | return SCM_INUM0; |
| 1766 | } else { |
| 1767 | unsigned long int count = 0; |
| 1768 | unsigned long int i = (SCM_BITVECTOR_LENGTH (bitvector) - 1) / SCM_LONG_BIT; |
| 1769 | unsigned long int w = SCM_UNPACK (SCM_VELTS (bitvector)[i]); |
| 1770 | if (scm_is_false (b)) { |
| 1771 | w = ~w; |
| 1772 | }; |
| 1773 | w <<= SCM_LONG_BIT - 1 - ((SCM_BITVECTOR_LENGTH (bitvector) - 1) % SCM_LONG_BIT); |
| 1774 | while (1) { |
| 1775 | while (w) { |
| 1776 | count += cnt_tab[w & 0x0f]; |
| 1777 | w >>= 4; |
| 1778 | } |
| 1779 | if (i == 0) { |
| 1780 | return scm_from_ulong (count); |
| 1781 | } else { |
| 1782 | --i; |
| 1783 | w = SCM_UNPACK (SCM_VELTS (bitvector)[i]); |
| 1784 | if (scm_is_false (b)) { |
| 1785 | w = ~w; |
| 1786 | } |
| 1787 | } |
| 1788 | } |
| 1789 | } |
| 1790 | } |
| 1791 | #undef FUNC_NAME |
| 1792 | |
| 1793 | |
| 1794 | SCM_DEFINE (scm_bit_position, "bit-position", 3, 0, 0, |
| 1795 | (SCM item, SCM v, SCM k), |
| 1796 | "Return the index of the first occurrance of @var{item} in bit\n" |
| 1797 | "vector @var{v}, starting from @var{k}. If there is no\n" |
| 1798 | "@var{item} entry between @var{k} and the end of\n" |
| 1799 | "@var{bitvector}, then return @code{#f}. For example,\n" |
| 1800 | "\n" |
| 1801 | "@example\n" |
| 1802 | "(bit-position #t #*000101 0) @result{} 3\n" |
| 1803 | "(bit-position #f #*0001111 3) @result{} #f\n" |
| 1804 | "@end example") |
| 1805 | #define FUNC_NAME s_scm_bit_position |
| 1806 | { |
| 1807 | long i, lenw, xbits, pos; |
| 1808 | register unsigned long w; |
| 1809 | |
| 1810 | SCM_VALIDATE_BOOL (1, item); |
| 1811 | SCM_ASSERT (SCM_BITVECTOR_P (v), v, SCM_ARG2, FUNC_NAME); |
| 1812 | pos = scm_to_long (k); |
| 1813 | SCM_ASSERT_RANGE (3, k, (pos <= SCM_BITVECTOR_LENGTH (v)) && (pos >= 0)); |
| 1814 | |
| 1815 | if (pos == SCM_BITVECTOR_LENGTH (v)) |
| 1816 | return SCM_BOOL_F; |
| 1817 | |
| 1818 | lenw = (SCM_BITVECTOR_LENGTH (v) - 1) / SCM_LONG_BIT; /* watch for part words */ |
| 1819 | i = pos / SCM_LONG_BIT; |
| 1820 | w = SCM_UNPACK (SCM_VELTS (v)[i]); |
| 1821 | if (scm_is_false (item)) |
| 1822 | w = ~w; |
| 1823 | xbits = (pos % SCM_LONG_BIT); |
| 1824 | pos -= xbits; |
| 1825 | w = ((w >> xbits) << xbits); |
| 1826 | xbits = SCM_LONG_BIT - 1 - (SCM_BITVECTOR_LENGTH (v) - 1) % SCM_LONG_BIT; |
| 1827 | while (!0) |
| 1828 | { |
| 1829 | if (w && (i == lenw)) |
| 1830 | w = ((w << xbits) >> xbits); |
| 1831 | if (w) |
| 1832 | while (w) |
| 1833 | switch (w & 0x0f) |
| 1834 | { |
| 1835 | default: |
| 1836 | return scm_from_long (pos); |
| 1837 | case 2: |
| 1838 | case 6: |
| 1839 | case 10: |
| 1840 | case 14: |
| 1841 | return scm_from_long (pos + 1); |
| 1842 | case 4: |
| 1843 | case 12: |
| 1844 | return scm_from_long (pos + 2); |
| 1845 | case 8: |
| 1846 | return scm_from_long (pos + 3); |
| 1847 | case 0: |
| 1848 | pos += 4; |
| 1849 | w >>= 4; |
| 1850 | } |
| 1851 | if (++i > lenw) |
| 1852 | break; |
| 1853 | pos += SCM_LONG_BIT; |
| 1854 | w = SCM_UNPACK (SCM_VELTS (v)[i]); |
| 1855 | if (scm_is_false (item)) |
| 1856 | w = ~w; |
| 1857 | } |
| 1858 | return SCM_BOOL_F; |
| 1859 | } |
| 1860 | #undef FUNC_NAME |
| 1861 | |
| 1862 | |
| 1863 | SCM_DEFINE (scm_bit_set_star_x, "bit-set*!", 3, 0, 0, |
| 1864 | (SCM v, SCM kv, SCM obj), |
| 1865 | "Set entries of bit vector @var{v} to @var{obj}, with @var{kv}\n" |
| 1866 | "selecting the entries to change. The return value is\n" |
| 1867 | "unspecified.\n" |
| 1868 | "\n" |
| 1869 | "If @var{kv} is a bit vector, then those entries where it has\n" |
| 1870 | "@code{#t} are the ones in @var{v} which are set to @var{obj}.\n" |
| 1871 | "@var{kv} and @var{v} must be the same length. When @var{obj}\n" |
| 1872 | "is @code{#t} it's like @var{kv} is OR'ed into @var{v}. Or when\n" |
| 1873 | "@var{obj} is @code{#f} it can be seen as an ANDNOT.\n" |
| 1874 | "\n" |
| 1875 | "@example\n" |
| 1876 | "(define bv #*01000010)\n" |
| 1877 | "(bit-set*! bv #*10010001 #t)\n" |
| 1878 | "bv\n" |
| 1879 | "@result{} #*11010011\n" |
| 1880 | "@end example\n" |
| 1881 | "\n" |
| 1882 | "If @var{kv} is a uniform vector of unsigned long integers, then\n" |
| 1883 | "they're indexes into @var{v} which are set to @var{obj}.\n" |
| 1884 | "\n" |
| 1885 | "@example\n" |
| 1886 | "(define bv #*01000010)\n" |
| 1887 | "(bit-set*! bv #u(5 2 7) #t)\n" |
| 1888 | "bv\n" |
| 1889 | "@result{} #*01100111\n" |
| 1890 | "@end example") |
| 1891 | #define FUNC_NAME s_scm_bit_set_star_x |
| 1892 | { |
| 1893 | register long i, k, vlen; |
| 1894 | SCM_ASSERT (SCM_BITVECTOR_P (v), v, SCM_ARG1, FUNC_NAME); |
| 1895 | SCM_ASRTGO (SCM_NIMP (kv), badarg2); |
| 1896 | switch SCM_TYP7 (kv) |
| 1897 | { |
| 1898 | default: |
| 1899 | badarg2:SCM_WRONG_TYPE_ARG (2, kv); |
| 1900 | case scm_tc7_uvect: |
| 1901 | vlen = SCM_BITVECTOR_LENGTH (v); |
| 1902 | if (scm_is_false (obj)) |
| 1903 | for (i = SCM_UVECTOR_LENGTH (kv); i;) |
| 1904 | { |
| 1905 | k = SCM_UNPACK (SCM_VELTS (kv)[--i]); |
| 1906 | if (k >= vlen) |
| 1907 | scm_out_of_range (FUNC_NAME, scm_from_long (k)); |
| 1908 | SCM_BITVEC_CLR(v, k); |
| 1909 | } |
| 1910 | else if (scm_is_eq (obj, SCM_BOOL_T)) |
| 1911 | for (i = SCM_UVECTOR_LENGTH (kv); i;) |
| 1912 | { |
| 1913 | k = SCM_UNPACK (SCM_VELTS (kv)[--i]); |
| 1914 | if (k >= vlen) |
| 1915 | scm_out_of_range (FUNC_NAME, scm_from_long (k)); |
| 1916 | SCM_BITVEC_SET(v, k); |
| 1917 | } |
| 1918 | else |
| 1919 | badarg3:SCM_WRONG_TYPE_ARG (3, obj); |
| 1920 | break; |
| 1921 | case scm_tc7_bvect: |
| 1922 | SCM_ASSERT (SCM_BITVECTOR_LENGTH (v) == SCM_BITVECTOR_LENGTH (kv), v, SCM_ARG1, FUNC_NAME); |
| 1923 | if (scm_is_false (obj)) |
| 1924 | for (k = (SCM_BITVECTOR_LENGTH (v) + SCM_LONG_BIT - 1) / SCM_LONG_BIT; k--;) |
| 1925 | SCM_BITVECTOR_BASE (v) [k] &= ~SCM_BITVECTOR_BASE (kv) [k]; |
| 1926 | else if (scm_is_eq (obj, SCM_BOOL_T)) |
| 1927 | for (k = (SCM_BITVECTOR_LENGTH (v) + SCM_LONG_BIT - 1) / SCM_LONG_BIT; k--;) |
| 1928 | SCM_BITVECTOR_BASE (v) [k] |= SCM_BITVECTOR_BASE (kv) [k]; |
| 1929 | else |
| 1930 | goto badarg3; |
| 1931 | break; |
| 1932 | } |
| 1933 | return SCM_UNSPECIFIED; |
| 1934 | } |
| 1935 | #undef FUNC_NAME |
| 1936 | |
| 1937 | |
| 1938 | SCM_DEFINE (scm_bit_count_star, "bit-count*", 3, 0, 0, |
| 1939 | (SCM v, SCM kv, SCM obj), |
| 1940 | "Return a count of how many entries in bit vector @var{v} are\n" |
| 1941 | "equal to @var{obj}, with @var{kv} selecting the entries to\n" |
| 1942 | "consider.\n" |
| 1943 | "\n" |
| 1944 | "If @var{kv} is a bit vector, then those entries where it has\n" |
| 1945 | "@code{#t} are the ones in @var{v} which are considered.\n" |
| 1946 | "@var{kv} and @var{v} must be the same length.\n" |
| 1947 | "\n" |
| 1948 | "If @var{kv} is a uniform vector of unsigned long integers, then\n" |
| 1949 | "it's the indexes in @var{v} to consider.\n" |
| 1950 | "\n" |
| 1951 | "For example,\n" |
| 1952 | "\n" |
| 1953 | "@example\n" |
| 1954 | "(bit-count* #*01110111 #*11001101 #t) @result{} 3\n" |
| 1955 | "(bit-count* #*01110111 #u(7 0 4) #f) @result{} 2\n" |
| 1956 | "@end example") |
| 1957 | #define FUNC_NAME s_scm_bit_count_star |
| 1958 | { |
| 1959 | register long i, vlen, count = 0; |
| 1960 | register unsigned long k; |
| 1961 | int fObj = 0; |
| 1962 | |
| 1963 | SCM_ASSERT (SCM_BITVECTOR_P (v), v, SCM_ARG1, FUNC_NAME); |
| 1964 | SCM_ASRTGO (SCM_NIMP (kv), badarg2); |
| 1965 | switch SCM_TYP7 (kv) |
| 1966 | { |
| 1967 | default: |
| 1968 | badarg2: |
| 1969 | SCM_WRONG_TYPE_ARG (2, kv); |
| 1970 | case scm_tc7_uvect: |
| 1971 | vlen = SCM_BITVECTOR_LENGTH (v); |
| 1972 | if (scm_is_false (obj)) |
| 1973 | for (i = SCM_UVECTOR_LENGTH (kv); i;) |
| 1974 | { |
| 1975 | k = SCM_UNPACK (SCM_VELTS (kv)[--i]); |
| 1976 | if (k >= vlen) |
| 1977 | scm_out_of_range (FUNC_NAME, scm_from_long (k)); |
| 1978 | if (!SCM_BITVEC_REF(v, k)) |
| 1979 | count++; |
| 1980 | } |
| 1981 | else if (scm_is_eq (obj, SCM_BOOL_T)) |
| 1982 | for (i = SCM_UVECTOR_LENGTH (kv); i;) |
| 1983 | { |
| 1984 | k = SCM_UNPACK (SCM_VELTS (kv)[--i]); |
| 1985 | if (k >= vlen) |
| 1986 | scm_out_of_range (FUNC_NAME, scm_from_long (k)); |
| 1987 | if (SCM_BITVEC_REF (v, k)) |
| 1988 | count++; |
| 1989 | } |
| 1990 | else |
| 1991 | badarg3:SCM_WRONG_TYPE_ARG (3, obj); |
| 1992 | break; |
| 1993 | case scm_tc7_bvect: |
| 1994 | SCM_ASSERT (SCM_BITVECTOR_LENGTH (v) == SCM_BITVECTOR_LENGTH (kv), v, SCM_ARG1, FUNC_NAME); |
| 1995 | if (0 == SCM_BITVECTOR_LENGTH (v)) |
| 1996 | return SCM_INUM0; |
| 1997 | SCM_ASRTGO (scm_is_bool (obj), badarg3); |
| 1998 | fObj = scm_is_eq (obj, SCM_BOOL_T); |
| 1999 | i = (SCM_BITVECTOR_LENGTH (v) - 1) / SCM_LONG_BIT; |
| 2000 | k = SCM_UNPACK (SCM_VELTS (kv)[i]) & (fObj ? SCM_UNPACK (SCM_VELTS (v)[i]) : ~ SCM_UNPACK (SCM_VELTS (v)[i])); |
| 2001 | k <<= SCM_LONG_BIT - 1 - ((SCM_BITVECTOR_LENGTH (v) - 1) % SCM_LONG_BIT); |
| 2002 | while (1) |
| 2003 | { |
| 2004 | for (; k; k >>= 4) |
| 2005 | count += cnt_tab[k & 0x0f]; |
| 2006 | if (0 == i--) |
| 2007 | return scm_from_long (count); |
| 2008 | |
| 2009 | /* urg. repetitive (see above.) */ |
| 2010 | k = SCM_UNPACK (SCM_VELTS (kv)[i]) & (fObj ? SCM_UNPACK(SCM_VELTS (v)[i]) : ~SCM_UNPACK (SCM_VELTS (v)[i])); |
| 2011 | } |
| 2012 | } |
| 2013 | return scm_from_long (count); |
| 2014 | } |
| 2015 | #undef FUNC_NAME |
| 2016 | |
| 2017 | |
| 2018 | SCM_DEFINE (scm_bit_invert_x, "bit-invert!", 1, 0, 0, |
| 2019 | (SCM v), |
| 2020 | "Modify the bit vector @var{v} by replacing each element with\n" |
| 2021 | "its negation.") |
| 2022 | #define FUNC_NAME s_scm_bit_invert_x |
| 2023 | { |
| 2024 | long int k; |
| 2025 | |
| 2026 | SCM_ASSERT (SCM_BITVECTOR_P (v), v, SCM_ARG1, FUNC_NAME); |
| 2027 | |
| 2028 | k = SCM_BITVECTOR_LENGTH (v); |
| 2029 | for (k = (k + SCM_LONG_BIT - 1) / SCM_LONG_BIT; k--;) |
| 2030 | SCM_BITVECTOR_BASE (v) [k] = ~SCM_BITVECTOR_BASE (v) [k]; |
| 2031 | |
| 2032 | return SCM_UNSPECIFIED; |
| 2033 | } |
| 2034 | #undef FUNC_NAME |
| 2035 | |
| 2036 | |
| 2037 | SCM |
| 2038 | scm_istr2bve (SCM str) |
| 2039 | { |
| 2040 | size_t len = scm_i_string_length (str); |
| 2041 | SCM v = scm_make_uve (len, SCM_BOOL_T); |
| 2042 | long *data = (long *) SCM_VELTS (v); |
| 2043 | register unsigned long mask; |
| 2044 | register long k; |
| 2045 | register long j; |
| 2046 | const char *c_str = scm_i_string_chars (str); |
| 2047 | |
| 2048 | for (k = 0; k < (len + SCM_LONG_BIT - 1) / SCM_LONG_BIT; k++) |
| 2049 | { |
| 2050 | data[k] = 0L; |
| 2051 | j = len - k * SCM_LONG_BIT; |
| 2052 | if (j > SCM_LONG_BIT) |
| 2053 | j = SCM_LONG_BIT; |
| 2054 | for (mask = 1L; j--; mask <<= 1) |
| 2055 | switch (*c_str++) |
| 2056 | { |
| 2057 | case '0': |
| 2058 | break; |
| 2059 | case '1': |
| 2060 | data[k] |= mask; |
| 2061 | break; |
| 2062 | default: |
| 2063 | return SCM_BOOL_F; |
| 2064 | } |
| 2065 | } |
| 2066 | return v; |
| 2067 | } |
| 2068 | |
| 2069 | |
| 2070 | |
| 2071 | static SCM |
| 2072 | ra2l (SCM ra, unsigned long base, unsigned long k) |
| 2073 | { |
| 2074 | register SCM res = SCM_EOL; |
| 2075 | register long inc = SCM_ARRAY_DIMS (ra)[k].inc; |
| 2076 | register size_t i; |
| 2077 | if (SCM_ARRAY_DIMS (ra)[k].ubnd < SCM_ARRAY_DIMS (ra)[k].lbnd) |
| 2078 | return SCM_EOL; |
| 2079 | i = base + (1 + SCM_ARRAY_DIMS (ra)[k].ubnd - SCM_ARRAY_DIMS (ra)[k].lbnd) * inc; |
| 2080 | if (k < SCM_ARRAY_NDIM (ra) - 1) |
| 2081 | { |
| 2082 | do |
| 2083 | { |
| 2084 | i -= inc; |
| 2085 | res = scm_cons (ra2l (ra, i, k + 1), res); |
| 2086 | } |
| 2087 | while (i != base); |
| 2088 | } |
| 2089 | else |
| 2090 | do |
| 2091 | { |
| 2092 | i -= inc; |
| 2093 | res = scm_cons (scm_uniform_vector_ref (SCM_ARRAY_V (ra), scm_from_size_t (i)), res); |
| 2094 | } |
| 2095 | while (i != base); |
| 2096 | return res; |
| 2097 | } |
| 2098 | |
| 2099 | |
| 2100 | SCM_DEFINE (scm_array_to_list, "array->list", 1, 0, 0, |
| 2101 | (SCM v), |
| 2102 | "Return a list consisting of all the elements, in order, of\n" |
| 2103 | "@var{array}.") |
| 2104 | #define FUNC_NAME s_scm_array_to_list |
| 2105 | { |
| 2106 | SCM res = SCM_EOL; |
| 2107 | register long k; |
| 2108 | SCM_ASRTGO (SCM_NIMP (v), badarg1); |
| 2109 | switch SCM_TYP7 (v) |
| 2110 | { |
| 2111 | default: |
| 2112 | badarg1:SCM_WRONG_TYPE_ARG (1, v); |
| 2113 | case scm_tc7_smob: |
| 2114 | SCM_ASRTGO (SCM_ARRAYP (v), badarg1); |
| 2115 | return ra2l (v, SCM_ARRAY_BASE (v), 0); |
| 2116 | case scm_tc7_vector: |
| 2117 | case scm_tc7_wvect: |
| 2118 | return scm_vector_to_list (v); |
| 2119 | case scm_tc7_string: |
| 2120 | return scm_string_to_list (v); |
| 2121 | case scm_tc7_bvect: |
| 2122 | { |
| 2123 | long *data = (long *) SCM_VELTS (v); |
| 2124 | register unsigned long mask; |
| 2125 | for (k = (SCM_BITVECTOR_LENGTH (v) - 1) / SCM_LONG_BIT; k > 0; k--) |
| 2126 | for (mask = 1UL << (SCM_LONG_BIT - 1); mask; mask >>= 1) |
| 2127 | res = scm_cons (scm_from_bool(((long *) data)[k] & mask), res); |
| 2128 | for (mask = 1L << ((SCM_BITVECTOR_LENGTH (v) % SCM_LONG_BIT) - 1); mask; mask >>= 1) |
| 2129 | res = scm_cons (scm_from_bool(((long *) data)[k] & mask), res); |
| 2130 | return res; |
| 2131 | } |
| 2132 | case scm_tc7_byvect: |
| 2133 | { |
| 2134 | signed char *data = (signed char *) SCM_VELTS (v); |
| 2135 | unsigned long k = SCM_UVECTOR_LENGTH (v); |
| 2136 | while (k != 0) |
| 2137 | res = scm_cons (scm_from_schar (data[--k]), res); |
| 2138 | return res; |
| 2139 | } |
| 2140 | case scm_tc7_uvect: |
| 2141 | { |
| 2142 | unsigned long *data = (unsigned long *)SCM_VELTS(v); |
| 2143 | for (k = SCM_UVECTOR_LENGTH(v) - 1; k >= 0; k--) |
| 2144 | res = scm_cons(scm_from_ulong (data[k]), res); |
| 2145 | return res; |
| 2146 | } |
| 2147 | case scm_tc7_ivect: |
| 2148 | { |
| 2149 | long *data = (long *)SCM_VELTS(v); |
| 2150 | for (k = SCM_UVECTOR_LENGTH(v) - 1; k >= 0; k--) |
| 2151 | res = scm_cons(scm_from_long (data[k]), res); |
| 2152 | return res; |
| 2153 | } |
| 2154 | case scm_tc7_svect: |
| 2155 | { |
| 2156 | short *data = (short *)SCM_VELTS(v); |
| 2157 | for (k = SCM_UVECTOR_LENGTH(v) - 1; k >= 0; k--) |
| 2158 | res = scm_cons (scm_from_short (data[k]), res); |
| 2159 | return res; |
| 2160 | } |
| 2161 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 2162 | case scm_tc7_llvect: |
| 2163 | { |
| 2164 | long long *data = (long long *)SCM_VELTS(v); |
| 2165 | for (k = SCM_UVECTOR_LENGTH(v) - 1; k >= 0; k--) |
| 2166 | res = scm_cons(scm_from_long_long (data[k]), res); |
| 2167 | return res; |
| 2168 | } |
| 2169 | #endif |
| 2170 | case scm_tc7_fvect: |
| 2171 | { |
| 2172 | float *data = (float *) SCM_VELTS (v); |
| 2173 | for (k = SCM_UVECTOR_LENGTH (v) - 1; k >= 0; k--) |
| 2174 | res = scm_cons (scm_from_double (data[k]), res); |
| 2175 | return res; |
| 2176 | } |
| 2177 | case scm_tc7_dvect: |
| 2178 | { |
| 2179 | double *data = (double *) SCM_VELTS (v); |
| 2180 | for (k = SCM_UVECTOR_LENGTH (v) - 1; k >= 0; k--) |
| 2181 | res = scm_cons (scm_from_double (data[k]), res); |
| 2182 | return res; |
| 2183 | } |
| 2184 | case scm_tc7_cvect: |
| 2185 | { |
| 2186 | double (*data)[2] = (double (*)[2]) SCM_VELTS (v); |
| 2187 | for (k = SCM_UVECTOR_LENGTH (v) - 1; k >= 0; k--) |
| 2188 | res = scm_cons (scm_c_make_rectangular (data[k][0], data[k][1]), |
| 2189 | res); |
| 2190 | return res; |
| 2191 | } |
| 2192 | } |
| 2193 | } |
| 2194 | #undef FUNC_NAME |
| 2195 | |
| 2196 | |
| 2197 | static int l2ra(SCM lst, SCM ra, unsigned long base, unsigned long k); |
| 2198 | |
| 2199 | SCM_DEFINE (scm_list_to_uniform_array, "list->uniform-array", 3, 0, 0, |
| 2200 | (SCM ndim, SCM prot, SCM lst), |
| 2201 | "@deffnx {Scheme Procedure} list->uniform-vector prot lst\n" |
| 2202 | "Return a uniform array of the type indicated by prototype\n" |
| 2203 | "@var{prot} with elements the same as those of @var{lst}.\n" |
| 2204 | "Elements must be of the appropriate type, no coercions are\n" |
| 2205 | "done.") |
| 2206 | #define FUNC_NAME s_scm_list_to_uniform_array |
| 2207 | { |
| 2208 | SCM shp = SCM_EOL; |
| 2209 | SCM row = lst; |
| 2210 | SCM ra; |
| 2211 | unsigned long k; |
| 2212 | long n; |
| 2213 | k = scm_to_ulong (ndim); |
| 2214 | while (k--) |
| 2215 | { |
| 2216 | n = scm_ilength (row); |
| 2217 | SCM_ASSERT (n >= 0, lst, SCM_ARG3, FUNC_NAME); |
| 2218 | shp = scm_cons (scm_from_long (n), shp); |
| 2219 | if (SCM_NIMP (row)) |
| 2220 | row = SCM_CAR (row); |
| 2221 | } |
| 2222 | ra = scm_dimensions_to_uniform_array (scm_reverse (shp), prot, |
| 2223 | SCM_UNDEFINED); |
| 2224 | if (SCM_NULLP (shp)) |
| 2225 | { |
| 2226 | SCM_ASRTGO (1 == scm_ilength (lst), badlst); |
| 2227 | scm_array_set_x (ra, SCM_CAR (lst), SCM_EOL); |
| 2228 | return ra; |
| 2229 | } |
| 2230 | if (!SCM_ARRAYP (ra)) |
| 2231 | { |
| 2232 | unsigned long length = scm_to_ulong (scm_uniform_vector_length (ra)); |
| 2233 | for (k = 0; k < length; k++, lst = SCM_CDR (lst)) |
| 2234 | scm_array_set_x (ra, SCM_CAR (lst), scm_from_ulong (k)); |
| 2235 | return ra; |
| 2236 | } |
| 2237 | if (l2ra (lst, ra, SCM_ARRAY_BASE (ra), 0)) |
| 2238 | return ra; |
| 2239 | else |
| 2240 | badlst:SCM_MISC_ERROR ("Bad scm_array contents list: ~S", |
| 2241 | scm_list_1 (lst)); |
| 2242 | } |
| 2243 | #undef FUNC_NAME |
| 2244 | |
| 2245 | static int |
| 2246 | l2ra (SCM lst, SCM ra, unsigned long base, unsigned long k) |
| 2247 | { |
| 2248 | register long inc = SCM_ARRAY_DIMS (ra)[k].inc; |
| 2249 | register long n = (1 + SCM_ARRAY_DIMS (ra)[k].ubnd - SCM_ARRAY_DIMS (ra)[k].lbnd); |
| 2250 | int ok = 1; |
| 2251 | if (n <= 0) |
| 2252 | return (SCM_NULLP (lst)); |
| 2253 | if (k < SCM_ARRAY_NDIM (ra) - 1) |
| 2254 | { |
| 2255 | while (n--) |
| 2256 | { |
| 2257 | if (!SCM_CONSP (lst)) |
| 2258 | return 0; |
| 2259 | ok = ok && l2ra (SCM_CAR (lst), ra, base, k + 1); |
| 2260 | base += inc; |
| 2261 | lst = SCM_CDR (lst); |
| 2262 | } |
| 2263 | if (!SCM_NULLP (lst)) |
| 2264 | return 0; |
| 2265 | } |
| 2266 | else |
| 2267 | { |
| 2268 | while (n--) |
| 2269 | { |
| 2270 | if (!SCM_CONSP (lst)) |
| 2271 | return 0; |
| 2272 | scm_array_set_x (SCM_ARRAY_V (ra), SCM_CAR (lst), scm_from_ulong (base)); |
| 2273 | base += inc; |
| 2274 | lst = SCM_CDR (lst); |
| 2275 | } |
| 2276 | if (!SCM_NULLP (lst)) |
| 2277 | return 0; |
| 2278 | } |
| 2279 | return ok; |
| 2280 | } |
| 2281 | |
| 2282 | |
| 2283 | static void |
| 2284 | rapr1 (SCM ra, unsigned long j, unsigned long k, SCM port, scm_print_state *pstate) |
| 2285 | { |
| 2286 | long inc = 1; |
| 2287 | long n = (SCM_TYP7 (ra) == scm_tc7_smob |
| 2288 | ? 0 |
| 2289 | : scm_to_long (scm_uniform_vector_length (ra))); |
| 2290 | int enclosed = 0; |
| 2291 | tail: |
| 2292 | switch SCM_TYP7 (ra) |
| 2293 | { |
| 2294 | case scm_tc7_smob: |
| 2295 | if (enclosed++) |
| 2296 | { |
| 2297 | SCM_ARRAY_BASE (ra) = j; |
| 2298 | if (n-- > 0) |
| 2299 | scm_iprin1 (ra, port, pstate); |
| 2300 | for (j += inc; n-- > 0; j += inc) |
| 2301 | { |
| 2302 | scm_putc (' ', port); |
| 2303 | SCM_ARRAY_BASE (ra) = j; |
| 2304 | scm_iprin1 (ra, port, pstate); |
| 2305 | } |
| 2306 | break; |
| 2307 | } |
| 2308 | if (k + 1 < SCM_ARRAY_NDIM (ra)) |
| 2309 | { |
| 2310 | long i; |
| 2311 | inc = SCM_ARRAY_DIMS (ra)[k].inc; |
| 2312 | for (i = SCM_ARRAY_DIMS (ra)[k].lbnd; i < SCM_ARRAY_DIMS (ra)[k].ubnd; i++) |
| 2313 | { |
| 2314 | scm_putc ('(', port); |
| 2315 | rapr1 (ra, j, k + 1, port, pstate); |
| 2316 | scm_puts (") ", port); |
| 2317 | j += inc; |
| 2318 | } |
| 2319 | if (i == SCM_ARRAY_DIMS (ra)[k].ubnd) |
| 2320 | { /* could be zero size. */ |
| 2321 | scm_putc ('(', port); |
| 2322 | rapr1 (ra, j, k + 1, port, pstate); |
| 2323 | scm_putc (')', port); |
| 2324 | } |
| 2325 | break; |
| 2326 | } |
| 2327 | if (SCM_ARRAY_NDIM (ra) > 0) |
| 2328 | { /* Could be zero-dimensional */ |
| 2329 | inc = SCM_ARRAY_DIMS (ra)[k].inc; |
| 2330 | n = (SCM_ARRAY_DIMS (ra)[k].ubnd - SCM_ARRAY_DIMS (ra)[k].lbnd + 1); |
| 2331 | } |
| 2332 | else |
| 2333 | n = 1; |
| 2334 | ra = SCM_ARRAY_V (ra); |
| 2335 | goto tail; |
| 2336 | default: |
| 2337 | /* scm_tc7_bvect and scm_tc7_llvect only? */ |
| 2338 | if (n-- > 0) |
| 2339 | scm_iprin1 (scm_uniform_vector_ref (ra, scm_from_ulong (j)), port, pstate); |
| 2340 | for (j += inc; n-- > 0; j += inc) |
| 2341 | { |
| 2342 | scm_putc (' ', port); |
| 2343 | scm_iprin1 (scm_cvref (ra, j, SCM_UNDEFINED), port, pstate); |
| 2344 | } |
| 2345 | break; |
| 2346 | case scm_tc7_string: |
| 2347 | { |
| 2348 | const char *src; |
| 2349 | src = scm_i_string_chars (ra); |
| 2350 | if (n-- > 0) |
| 2351 | scm_iprin1 (SCM_MAKE_CHAR (src[j]), port, pstate); |
| 2352 | if (SCM_WRITINGP (pstate)) |
| 2353 | for (j += inc; n-- > 0; j += inc) |
| 2354 | { |
| 2355 | scm_putc (' ', port); |
| 2356 | scm_iprin1 (SCM_MAKE_CHAR (src[j]), port, pstate); |
| 2357 | } |
| 2358 | else |
| 2359 | for (j += inc; n-- > 0; j += inc) |
| 2360 | scm_putc (src[j], port); |
| 2361 | scm_remember_upto_here_1 (ra); |
| 2362 | } |
| 2363 | break; |
| 2364 | case scm_tc7_byvect: |
| 2365 | if (n-- > 0) |
| 2366 | scm_intprint (((char *) SCM_CELL_WORD_1 (ra))[j], 10, port); |
| 2367 | for (j += inc; n-- > 0; j += inc) |
| 2368 | { |
| 2369 | scm_putc (' ', port); |
| 2370 | scm_intprint (((char *)SCM_CELL_WORD_1 (ra))[j], 10, port); |
| 2371 | } |
| 2372 | break; |
| 2373 | |
| 2374 | case scm_tc7_uvect: |
| 2375 | { |
| 2376 | char str[11]; |
| 2377 | |
| 2378 | if (n-- > 0) |
| 2379 | { |
| 2380 | /* intprint can't handle >= 2^31. */ |
| 2381 | sprintf (str, "%lu", ((unsigned long *) SCM_VELTS (ra))[j]); |
| 2382 | scm_puts (str, port); |
| 2383 | } |
| 2384 | for (j += inc; n-- > 0; j += inc) |
| 2385 | { |
| 2386 | scm_putc (' ', port); |
| 2387 | sprintf (str, "%lu", ((unsigned long *) SCM_VELTS (ra))[j]); |
| 2388 | scm_puts (str, port); |
| 2389 | } |
| 2390 | } |
| 2391 | case scm_tc7_ivect: |
| 2392 | if (n-- > 0) |
| 2393 | scm_intprint (((signed long *) SCM_VELTS (ra))[j], 10, port); |
| 2394 | for (j += inc; n-- > 0; j += inc) |
| 2395 | { |
| 2396 | scm_putc (' ', port); |
| 2397 | scm_intprint (((signed long *) SCM_VELTS (ra))[j], 10, port); |
| 2398 | } |
| 2399 | break; |
| 2400 | |
| 2401 | case scm_tc7_svect: |
| 2402 | if (n-- > 0) |
| 2403 | scm_intprint (((short *) SCM_CELL_WORD_1 (ra))[j], 10, port); |
| 2404 | for (j += inc; n-- > 0; j += inc) |
| 2405 | { |
| 2406 | scm_putc (' ', port); |
| 2407 | scm_intprint (((short *) SCM_CELL_WORD_1 (ra))[j], 10, port); |
| 2408 | } |
| 2409 | break; |
| 2410 | |
| 2411 | case scm_tc7_fvect: |
| 2412 | if (n-- > 0) |
| 2413 | { |
| 2414 | SCM z = scm_from_double (1.0); |
| 2415 | SCM_REAL_VALUE (z) = ((float *) SCM_VELTS (ra))[j]; |
| 2416 | scm_print_real (z, port, pstate); |
| 2417 | for (j += inc; n-- > 0; j += inc) |
| 2418 | { |
| 2419 | scm_putc (' ', port); |
| 2420 | SCM_REAL_VALUE (z) = ((float *) SCM_VELTS (ra))[j]; |
| 2421 | scm_print_real (z, port, pstate); |
| 2422 | } |
| 2423 | } |
| 2424 | break; |
| 2425 | case scm_tc7_dvect: |
| 2426 | if (n-- > 0) |
| 2427 | { |
| 2428 | SCM z = scm_from_double (1.0 / 3.0); |
| 2429 | SCM_REAL_VALUE (z) = ((double *) SCM_VELTS (ra))[j]; |
| 2430 | scm_print_real (z, port, pstate); |
| 2431 | for (j += inc; n-- > 0; j += inc) |
| 2432 | { |
| 2433 | scm_putc (' ', port); |
| 2434 | SCM_REAL_VALUE (z) = ((double *) SCM_VELTS (ra))[j]; |
| 2435 | scm_print_real (z, port, pstate); |
| 2436 | } |
| 2437 | } |
| 2438 | break; |
| 2439 | case scm_tc7_cvect: |
| 2440 | if (n-- > 0) |
| 2441 | { |
| 2442 | SCM cz = scm_c_make_rectangular (0.0, 1.0); |
| 2443 | SCM z = scm_from_double (1.0/3.0); |
| 2444 | SCM_REAL_VALUE (z) = |
| 2445 | SCM_COMPLEX_REAL (cz) = ((double *) SCM_VELTS (ra))[2 * j]; |
| 2446 | SCM_COMPLEX_IMAG (cz) = ((double *) SCM_VELTS (ra))[2 * j + 1]; |
| 2447 | scm_print_complex ((0.0 == SCM_COMPLEX_IMAG (cz) ? z : cz), |
| 2448 | port, pstate); |
| 2449 | for (j += inc; n-- > 0; j += inc) |
| 2450 | { |
| 2451 | scm_putc (' ', port); |
| 2452 | SCM_REAL_VALUE (z) |
| 2453 | = SCM_COMPLEX_REAL (cz) = ((double *) SCM_VELTS (ra))[2 * j]; |
| 2454 | SCM_COMPLEX_IMAG (cz) = ((double *) SCM_VELTS (ra))[2 * j + 1]; |
| 2455 | scm_print_complex ((0.0 == SCM_COMPLEX_IMAG (cz) ? z : cz), |
| 2456 | port, pstate); |
| 2457 | } |
| 2458 | } |
| 2459 | break; |
| 2460 | } |
| 2461 | } |
| 2462 | |
| 2463 | |
| 2464 | |
| 2465 | int |
| 2466 | scm_raprin1 (SCM exp, SCM port, scm_print_state *pstate) |
| 2467 | { |
| 2468 | SCM v = exp; |
| 2469 | unsigned long base = 0; |
| 2470 | scm_putc ('#', port); |
| 2471 | tail: |
| 2472 | switch SCM_TYP7 (v) |
| 2473 | { |
| 2474 | case scm_tc7_smob: |
| 2475 | { |
| 2476 | long ndim = SCM_ARRAY_NDIM (v); |
| 2477 | base = SCM_ARRAY_BASE (v); |
| 2478 | v = SCM_ARRAY_V (v); |
| 2479 | if (SCM_ARRAYP (v)) |
| 2480 | |
| 2481 | { |
| 2482 | scm_puts ("<enclosed-array ", port); |
| 2483 | rapr1 (exp, base, 0, port, pstate); |
| 2484 | scm_putc ('>', port); |
| 2485 | return 1; |
| 2486 | } |
| 2487 | else |
| 2488 | { |
| 2489 | scm_intprint (ndim, 10, port); |
| 2490 | goto tail; |
| 2491 | } |
| 2492 | } |
| 2493 | case scm_tc7_bvect: |
| 2494 | if (scm_is_eq (exp, v)) |
| 2495 | { /* a uve, not an scm_array */ |
| 2496 | register long i, j, w; |
| 2497 | scm_putc ('*', port); |
| 2498 | for (i = 0; i < (SCM_BITVECTOR_LENGTH (exp)) / SCM_LONG_BIT; i++) |
| 2499 | { |
| 2500 | scm_t_bits w = SCM_UNPACK (SCM_VELTS (exp)[i]); |
| 2501 | for (j = SCM_LONG_BIT; j; j--) |
| 2502 | { |
| 2503 | scm_putc (w & 1 ? '1' : '0', port); |
| 2504 | w >>= 1; |
| 2505 | } |
| 2506 | } |
| 2507 | j = SCM_BITVECTOR_LENGTH (exp) % SCM_LONG_BIT; |
| 2508 | if (j) |
| 2509 | { |
| 2510 | w = SCM_UNPACK (SCM_VELTS (exp)[SCM_BITVECTOR_LENGTH (exp) / SCM_LONG_BIT]); |
| 2511 | for (; j; j--) |
| 2512 | { |
| 2513 | scm_putc (w & 1 ? '1' : '0', port); |
| 2514 | w >>= 1; |
| 2515 | } |
| 2516 | } |
| 2517 | return 1; |
| 2518 | } |
| 2519 | else |
| 2520 | scm_putc ('b', port); |
| 2521 | break; |
| 2522 | case scm_tc7_string: |
| 2523 | scm_putc ('a', port); |
| 2524 | break; |
| 2525 | case scm_tc7_byvect: |
| 2526 | scm_putc ('y', port); |
| 2527 | break; |
| 2528 | case scm_tc7_uvect: |
| 2529 | scm_putc ('u', port); |
| 2530 | break; |
| 2531 | case scm_tc7_ivect: |
| 2532 | scm_putc ('e', port); |
| 2533 | break; |
| 2534 | case scm_tc7_svect: |
| 2535 | scm_putc ('h', port); |
| 2536 | break; |
| 2537 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 2538 | case scm_tc7_llvect: |
| 2539 | scm_putc ('l', port); |
| 2540 | break; |
| 2541 | #endif |
| 2542 | case scm_tc7_fvect: |
| 2543 | scm_putc ('s', port); |
| 2544 | break; |
| 2545 | case scm_tc7_dvect: |
| 2546 | scm_putc ('i', port); |
| 2547 | break; |
| 2548 | case scm_tc7_cvect: |
| 2549 | scm_putc ('c', port); |
| 2550 | break; |
| 2551 | } |
| 2552 | scm_putc ('(', port); |
| 2553 | rapr1 (exp, base, 0, port, pstate); |
| 2554 | scm_putc (')', port); |
| 2555 | return 1; |
| 2556 | } |
| 2557 | |
| 2558 | SCM_DEFINE (scm_array_prototype, "array-prototype", 1, 0, 0, |
| 2559 | (SCM ra), |
| 2560 | "Return an object that would produce an array of the same type\n" |
| 2561 | "as @var{array}, if used as the @var{prototype} for\n" |
| 2562 | "@code{make-uniform-array}.") |
| 2563 | #define FUNC_NAME s_scm_array_prototype |
| 2564 | { |
| 2565 | int enclosed = 0; |
| 2566 | SCM_ASRTGO (SCM_NIMP (ra), badarg); |
| 2567 | loop: |
| 2568 | switch SCM_TYP7 (ra) |
| 2569 | { |
| 2570 | default: |
| 2571 | badarg:SCM_WRONG_TYPE_ARG (1, ra); |
| 2572 | case scm_tc7_smob: |
| 2573 | SCM_ASRTGO (SCM_ARRAYP (ra), badarg); |
| 2574 | if (enclosed++) |
| 2575 | return SCM_UNSPECIFIED; |
| 2576 | ra = SCM_ARRAY_V (ra); |
| 2577 | goto loop; |
| 2578 | case scm_tc7_vector: |
| 2579 | case scm_tc7_wvect: |
| 2580 | return SCM_EOL; |
| 2581 | case scm_tc7_bvect: |
| 2582 | return SCM_BOOL_T; |
| 2583 | case scm_tc7_string: |
| 2584 | return SCM_MAKE_CHAR ('a'); |
| 2585 | case scm_tc7_byvect: |
| 2586 | return SCM_MAKE_CHAR ('\0'); |
| 2587 | case scm_tc7_uvect: |
| 2588 | return scm_from_int (1); |
| 2589 | case scm_tc7_ivect: |
| 2590 | return scm_from_int (-1); |
| 2591 | case scm_tc7_svect: |
| 2592 | return scm_from_locale_symbol ("s"); |
| 2593 | #if SCM_SIZEOF_LONG_LONG != 0 |
| 2594 | case scm_tc7_llvect: |
| 2595 | return scm_from_locale_symbol ("l"); |
| 2596 | #endif |
| 2597 | case scm_tc7_fvect: |
| 2598 | return scm_from_double (1.0); |
| 2599 | case scm_tc7_dvect: |
| 2600 | return exactly_one_third; |
| 2601 | case scm_tc7_cvect: |
| 2602 | return scm_c_make_rectangular (0.0, 1.0); |
| 2603 | } |
| 2604 | } |
| 2605 | #undef FUNC_NAME |
| 2606 | |
| 2607 | |
| 2608 | static SCM |
| 2609 | array_mark (SCM ptr) |
| 2610 | { |
| 2611 | return SCM_ARRAY_V (ptr); |
| 2612 | } |
| 2613 | |
| 2614 | |
| 2615 | static size_t |
| 2616 | array_free (SCM ptr) |
| 2617 | { |
| 2618 | scm_gc_free (SCM_ARRAY_MEM (ptr), |
| 2619 | (sizeof (scm_t_array) |
| 2620 | + SCM_ARRAY_NDIM (ptr) * sizeof (scm_t_array_dim)), |
| 2621 | "array"); |
| 2622 | return 0; |
| 2623 | } |
| 2624 | |
| 2625 | void |
| 2626 | scm_init_unif () |
| 2627 | { |
| 2628 | scm_tc16_array = scm_make_smob_type ("array", 0); |
| 2629 | scm_set_smob_mark (scm_tc16_array, array_mark); |
| 2630 | scm_set_smob_free (scm_tc16_array, array_free); |
| 2631 | scm_set_smob_print (scm_tc16_array, scm_raprin1); |
| 2632 | scm_set_smob_equalp (scm_tc16_array, scm_array_equal_p); |
| 2633 | exactly_one_third = scm_permanent_object (scm_divide (scm_from_int (1), |
| 2634 | scm_from_int (3))); |
| 2635 | scm_add_feature ("array"); |
| 2636 | #include "libguile/unif.x" |
| 2637 | } |
| 2638 | |
| 2639 | /* |
| 2640 | Local Variables: |
| 2641 | c-file-style: "gnu" |
| 2642 | End: |
| 2643 | */ |