Commit | Line | Data |
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438974d0 | 1 | /* Copyright (C) 1995,1996,1998,1999,2000,2001, 2006, 2008, 2009 Free Software Foundation, Inc. |
0f2d19dd | 2 | * |
73be1d9e | 3 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
4 | * modify it under the terms of the GNU Lesser General Public License |
5 | * as published by the Free Software Foundation; either version 3 of | |
6 | * the License, or (at your option) any later version. | |
0f2d19dd | 7 | * |
53befeb7 NJ |
8 | * This library is distributed in the hope that it will be useful, but |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
11 | * Lesser General Public License for more details. | |
0f2d19dd | 12 | * |
73be1d9e MV |
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 | |
53befeb7 NJ |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
16 | * 02110-1301 USA | |
73be1d9e | 17 | */ |
1bbd0b84 | 18 | |
1bbd0b84 | 19 | |
0f2d19dd | 20 | \f |
dbb605f5 LC |
21 | #ifdef HAVE_CONFIG_H |
22 | # include <config.h> | |
23 | #endif | |
0f2d19dd | 24 | |
a0599745 MD |
25 | #include "libguile/_scm.h" |
26 | #include "libguile/eq.h" | |
27 | #include "libguile/root.h" | |
28 | #include "libguile/strings.h" | |
c96d76b8 | 29 | #include "libguile/lang.h" |
a0599745 MD |
30 | |
31 | #include "libguile/validate.h" | |
32 | #include "libguile/vectors.h" | |
f332e957 | 33 | #include "libguile/generalized-vectors.h" |
2fa901a5 | 34 | #include "libguile/arrays.h" |
cf396142 | 35 | #include "libguile/bitvectors.h" |
438974d0 | 36 | #include "libguile/bytevectors.h" |
5d1b3b2d | 37 | #include "libguile/array-map.h" |
88797580 MV |
38 | #include "libguile/srfi-4.h" |
39 | #include "libguile/strings.h" | |
40 | #include "libguile/srfi-13.h" | |
1d0df896 | 41 | #include "libguile/dynwind.h" |
6e708ef2 | 42 | #include "libguile/deprecation.h" |
88797580 | 43 | |
1c44468d | 44 | #include "libguile/bdw-gc.h" |
3a2de079 LC |
45 | |
46 | ||
0f2d19dd JB |
47 | \f |
48 | ||
6e708ef2 MV |
49 | #define VECTOR_MAX_LENGTH (SCM_T_BITS_MAX >> 8) |
50 | ||
6e708ef2 MV |
51 | int |
52 | scm_is_vector (SCM obj) | |
53 | { | |
54 | if (SCM_I_IS_VECTOR (obj)) | |
55 | return 1; | |
04b87de5 | 56 | if (SCM_I_ARRAYP (obj) && SCM_I_ARRAY_NDIM (obj) == 1) |
6e708ef2 | 57 | { |
04b87de5 | 58 | SCM v = SCM_I_ARRAY_V (obj); |
6e708ef2 MV |
59 | return SCM_I_IS_VECTOR (v); |
60 | } | |
61 | return 0; | |
62 | } | |
63 | ||
64 | int | |
65 | scm_is_simple_vector (SCM obj) | |
1d0df896 | 66 | { |
6e708ef2 | 67 | return SCM_I_IS_VECTOR (obj); |
1d0df896 MV |
68 | } |
69 | ||
354116f7 MV |
70 | const SCM * |
71 | scm_vector_elements (SCM vec, scm_t_array_handle *h, | |
72 | size_t *lenp, ssize_t *incp) | |
73 | { | |
3a2de079 LC |
74 | if (SCM_I_WVECTP (vec)) |
75 | /* FIXME: We should check each (weak) element of the vector for NULL and | |
76 | convert it to SCM_BOOL_F. */ | |
77 | abort (); | |
78 | ||
354116f7 MV |
79 | scm_generalized_vector_get_handle (vec, h); |
80 | if (lenp) | |
81 | { | |
82 | scm_t_array_dim *dim = scm_array_handle_dims (h); | |
83 | *lenp = dim->ubnd - dim->lbnd + 1; | |
84 | *incp = dim->inc; | |
85 | } | |
86 | return scm_array_handle_elements (h); | |
87 | } | |
88 | ||
89 | SCM * | |
90 | scm_vector_writable_elements (SCM vec, scm_t_array_handle *h, | |
91 | size_t *lenp, ssize_t *incp) | |
92 | { | |
3a2de079 LC |
93 | if (SCM_I_WVECTP (vec)) |
94 | /* FIXME: We should check each (weak) element of the vector for NULL and | |
95 | convert it to SCM_BOOL_F. */ | |
96 | abort (); | |
97 | ||
354116f7 MV |
98 | scm_generalized_vector_get_handle (vec, h); |
99 | if (lenp) | |
100 | { | |
101 | scm_t_array_dim *dim = scm_array_handle_dims (h); | |
102 | *lenp = dim->ubnd - dim->lbnd + 1; | |
103 | *incp = dim->inc; | |
104 | } | |
105 | return scm_array_handle_writable_elements (h); | |
106 | } | |
107 | ||
a1ec6916 | 108 | SCM_DEFINE (scm_vector_p, "vector?", 1, 0, 0, |
5ffe9968 | 109 | (SCM obj), |
1e6808ea MG |
110 | "Return @code{#t} if @var{obj} is a vector, otherwise return\n" |
111 | "@code{#f}.") | |
1bbd0b84 | 112 | #define FUNC_NAME s_scm_vector_p |
0f2d19dd | 113 | { |
de5c0f58 | 114 | return scm_from_bool (scm_is_vector (obj)); |
0f2d19dd | 115 | } |
1bbd0b84 | 116 | #undef FUNC_NAME |
0f2d19dd | 117 | |
f172c0b7 | 118 | SCM_GPROC (s_vector_length, "vector-length", 1, 0, 0, scm_vector_length, g_vector_length); |
1e6808ea | 119 | /* Returns the number of elements in @var{vector} as an exact integer. */ |
0f2d19dd | 120 | SCM |
f172c0b7 | 121 | scm_vector_length (SCM v) |
0f2d19dd | 122 | { |
6e708ef2 MV |
123 | if (SCM_I_IS_VECTOR (v)) |
124 | return scm_from_size_t (SCM_I_VECTOR_LENGTH (v)); | |
04b87de5 | 125 | else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1) |
de5c0f58 | 126 | { |
04b87de5 | 127 | scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v); |
de5c0f58 MV |
128 | return scm_from_size_t (dim->ubnd - dim->lbnd + 1); |
129 | } | |
130 | else | |
131 | SCM_WTA_DISPATCH_1 (g_vector_length, v, 1, NULL); | |
0f2d19dd JB |
132 | } |
133 | ||
88797580 MV |
134 | size_t |
135 | scm_c_vector_length (SCM v) | |
136 | { | |
6e708ef2 MV |
137 | if (SCM_I_IS_VECTOR (v)) |
138 | return SCM_I_VECTOR_LENGTH (v); | |
88797580 | 139 | else |
de5c0f58 | 140 | return scm_to_size_t (scm_vector_length (v)); |
88797580 MV |
141 | } |
142 | ||
f172c0b7 | 143 | SCM_REGISTER_PROC (s_list_to_vector, "list->vector", 1, 0, 0, scm_vector); |
5ffe9968 | 144 | /* |
942e5b91 MG |
145 | "Return a newly created vector initialized to the elements of" |
146 | "the list @var{list}.\n\n" | |
147 | "@lisp\n" | |
148 | "(vector->list '#(dah dah didah)) @result{} (dah dah didah)\n" | |
149 | "(list->vector '(dididit dah)) @result{} #(dididit dah)\n" | |
150 | "@end lisp") | |
5ffe9968 | 151 | */ |
a1ec6916 | 152 | SCM_DEFINE (scm_vector, "vector", 0, 0, 1, |
f172c0b7 | 153 | (SCM l), |
8f85c0c6 NJ |
154 | "@deffnx {Scheme Procedure} list->vector l\n" |
155 | "Return a newly allocated vector composed of the\n" | |
1e6808ea MG |
156 | "given arguments. Analogous to @code{list}.\n" |
157 | "\n" | |
942e5b91 | 158 | "@lisp\n" |
1e6808ea | 159 | "(vector 'a 'b 'c) @result{} #(a b c)\n" |
942e5b91 | 160 | "@end lisp") |
1bbd0b84 | 161 | #define FUNC_NAME s_scm_vector |
0f2d19dd JB |
162 | { |
163 | SCM res; | |
22a52da1 | 164 | SCM *data; |
1d0df896 | 165 | long i, len; |
6e708ef2 | 166 | scm_t_array_handle handle; |
22a52da1 | 167 | |
1d0df896 | 168 | SCM_VALIDATE_LIST_COPYLEN (1, l, len); |
34d19ef6 | 169 | |
6e708ef2 MV |
170 | res = scm_c_make_vector (len, SCM_UNSPECIFIED); |
171 | data = scm_vector_writable_elements (res, &handle, NULL, NULL); | |
1d0df896 | 172 | i = 0; |
c8857a4d | 173 | while (scm_is_pair (l) && i < len) |
22a52da1 | 174 | { |
1d0df896 | 175 | data[i] = SCM_CAR (l); |
22a52da1 | 176 | l = SCM_CDR (l); |
6e708ef2 | 177 | i += 1; |
22a52da1 DH |
178 | } |
179 | ||
c8857a4d MV |
180 | scm_array_handle_release (&handle); |
181 | ||
0f2d19dd JB |
182 | return res; |
183 | } | |
1bbd0b84 | 184 | #undef FUNC_NAME |
0f2d19dd | 185 | |
f172c0b7 | 186 | SCM_GPROC (s_vector_ref, "vector-ref", 2, 0, 0, scm_vector_ref, g_vector_ref); |
1cc91f1b | 187 | |
5ffe9968 GB |
188 | /* |
189 | "@var{k} must be a valid index of @var{vector}.\n" | |
190 | "@samp{Vector-ref} returns the contents of element @var{k} of\n" | |
191 | "@var{vector}.\n\n" | |
942e5b91 MG |
192 | "@lisp\n" |
193 | "(vector-ref '#(1 1 2 3 5 8 13 21) 5) @result{} 8\n" | |
5ffe9968 GB |
194 | "(vector-ref '#(1 1 2 3 5 8 13 21)\n" |
195 | " (let ((i (round (* 2 (acos -1)))))\n" | |
196 | " (if (inexact? i)\n" | |
197 | " (inexact->exact i)\n" | |
942e5b91 MG |
198 | " i))) @result{} 13\n" |
199 | "@end lisp" | |
5ffe9968 GB |
200 | */ |
201 | ||
0f2d19dd | 202 | SCM |
ea633082 | 203 | scm_vector_ref (SCM v, SCM k) |
685c0d71 | 204 | #define FUNC_NAME s_vector_ref |
0f2d19dd | 205 | { |
de5c0f58 | 206 | return scm_c_vector_ref (v, scm_to_size_t (k)); |
0f2d19dd | 207 | } |
685c0d71 | 208 | #undef FUNC_NAME |
0f2d19dd | 209 | |
88797580 MV |
210 | SCM |
211 | scm_c_vector_ref (SCM v, size_t k) | |
212 | { | |
6e708ef2 | 213 | if (SCM_I_IS_VECTOR (v)) |
de5c0f58 | 214 | { |
3a2de079 LC |
215 | register SCM elt; |
216 | ||
6e708ef2 | 217 | if (k >= SCM_I_VECTOR_LENGTH (v)) |
3a2de079 LC |
218 | scm_out_of_range (NULL, scm_from_size_t (k)); |
219 | elt = (SCM_I_VECTOR_ELTS(v))[k]; | |
220 | ||
221 | if ((elt == SCM_PACK (NULL)) && SCM_I_WVECTP (v)) | |
222 | /* ELT was a weak pointer and got nullified by the GC. */ | |
223 | return SCM_BOOL_F; | |
224 | ||
225 | return elt; | |
de5c0f58 | 226 | } |
04b87de5 | 227 | else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1) |
88797580 | 228 | { |
04b87de5 MV |
229 | scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v); |
230 | SCM vv = SCM_I_ARRAY_V (v); | |
6e708ef2 MV |
231 | if (SCM_I_IS_VECTOR (vv)) |
232 | { | |
3a2de079 LC |
233 | register SCM elt; |
234 | ||
6e708ef2 MV |
235 | if (k >= dim->ubnd - dim->lbnd + 1) |
236 | scm_out_of_range (NULL, scm_from_size_t (k)); | |
04b87de5 | 237 | k = SCM_I_ARRAY_BASE (v) + k*dim->inc; |
3a2de079 LC |
238 | elt = (SCM_I_VECTOR_ELTS (vv))[k]; |
239 | ||
240 | if ((elt == SCM_PACK (NULL)) && (SCM_I_WVECTP (vv))) | |
241 | /* ELT was a weak pointer and got nullified by the GC. */ | |
242 | return SCM_BOOL_F; | |
243 | ||
244 | return elt; | |
6e708ef2 MV |
245 | } |
246 | scm_wrong_type_arg_msg (NULL, 0, v, "non-uniform vector"); | |
88797580 | 247 | } |
de5c0f58 MV |
248 | else |
249 | SCM_WTA_DISPATCH_2 (g_vector_ref, v, scm_from_size_t (k), 2, NULL); | |
88797580 MV |
250 | } |
251 | ||
f172c0b7 | 252 | SCM_GPROC (s_vector_set_x, "vector-set!", 3, 0, 0, scm_vector_set_x, g_vector_set_x); |
1cc91f1b | 253 | |
942e5b91 MG |
254 | /* "@var{k} must be a valid index of @var{vector}.\n" |
255 | "@code{Vector-set!} stores @var{obj} in element @var{k} of @var{vector}.\n" | |
256 | "The value returned by @samp{vector-set!} is unspecified.\n" | |
257 | "@lisp\n" | |
258 | "(let ((vec (vector 0 '(2 2 2 2) "Anna")))\n" | |
259 | " (vector-set! vec 1 '("Sue" "Sue"))\n" | |
260 | " vec) @result{} #(0 ("Sue" "Sue") "Anna")\n" | |
261 | "(vector-set! '#(0 1 2) 1 "doe") @result{} @emph{error} ; constant vector\n" | |
262 | "@end lisp" | |
5ffe9968 GB |
263 | */ |
264 | ||
0f2d19dd | 265 | SCM |
f172c0b7 | 266 | scm_vector_set_x (SCM v, SCM k, SCM obj) |
685c0d71 | 267 | #define FUNC_NAME s_vector_set_x |
0f2d19dd | 268 | { |
de5c0f58 | 269 | scm_c_vector_set_x (v, scm_to_size_t (k), obj); |
60c497a3 | 270 | return SCM_UNSPECIFIED; |
0f2d19dd | 271 | } |
685c0d71 | 272 | #undef FUNC_NAME |
0f2d19dd | 273 | |
de5c0f58 | 274 | void |
88797580 MV |
275 | scm_c_vector_set_x (SCM v, size_t k, SCM obj) |
276 | { | |
6e708ef2 | 277 | if (SCM_I_IS_VECTOR (v)) |
88797580 | 278 | { |
6e708ef2 | 279 | if (k >= SCM_I_VECTOR_LENGTH (v)) |
de5c0f58 | 280 | scm_out_of_range (NULL, scm_from_size_t (k)); |
6e708ef2 | 281 | (SCM_I_VECTOR_WELTS(v))[k] = obj; |
3a2de079 LC |
282 | if (SCM_I_WVECTP (v)) |
283 | { | |
284 | /* Make it a weak pointer. */ | |
285 | GC_PTR link = (GC_PTR) & ((SCM_I_VECTOR_WELTS (v))[k]); | |
dbe4d258 | 286 | SCM_I_REGISTER_DISAPPEARING_LINK (link, obj); |
3a2de079 | 287 | } |
de5c0f58 | 288 | } |
04b87de5 | 289 | else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1) |
de5c0f58 | 290 | { |
04b87de5 MV |
291 | scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v); |
292 | SCM vv = SCM_I_ARRAY_V (v); | |
6e708ef2 MV |
293 | if (SCM_I_IS_VECTOR (vv)) |
294 | { | |
295 | if (k >= dim->ubnd - dim->lbnd + 1) | |
296 | scm_out_of_range (NULL, scm_from_size_t (k)); | |
04b87de5 | 297 | k = SCM_I_ARRAY_BASE (v) + k*dim->inc; |
6e708ef2 | 298 | (SCM_I_VECTOR_WELTS (vv))[k] = obj; |
3a2de079 LC |
299 | |
300 | if (SCM_I_WVECTP (vv)) | |
301 | { | |
302 | /* Make it a weak pointer. */ | |
303 | GC_PTR link = (GC_PTR) & ((SCM_I_VECTOR_WELTS (vv))[k]); | |
dbe4d258 | 304 | SCM_I_REGISTER_DISAPPEARING_LINK (link, obj); |
3a2de079 | 305 | } |
6e708ef2 MV |
306 | } |
307 | else | |
308 | scm_wrong_type_arg_msg (NULL, 0, v, "non-uniform vector"); | |
88797580 MV |
309 | } |
310 | else | |
311 | { | |
de5c0f58 MV |
312 | if (SCM_UNPACK (g_vector_set_x)) |
313 | scm_apply_generic (g_vector_set_x, | |
314 | scm_list_3 (v, scm_from_size_t (k), obj)); | |
315 | else | |
316 | scm_wrong_type_arg_msg (NULL, 0, v, "vector"); | |
88797580 MV |
317 | } |
318 | } | |
0f2d19dd | 319 | |
a1ec6916 | 320 | SCM_DEFINE (scm_make_vector, "make-vector", 1, 1, 0, |
1bbd0b84 | 321 | (SCM k, SCM fill), |
1e6808ea | 322 | "Return a newly allocated vector of @var{k} elements. If a\n" |
8f85c0c6 NJ |
323 | "second argument is given, then each position is initialized to\n" |
324 | "@var{fill}. Otherwise the initial contents of each position is\n" | |
1e6808ea | 325 | "unspecified.") |
1bbd0b84 | 326 | #define FUNC_NAME s_scm_make_vector |
0f2d19dd | 327 | { |
6e708ef2 | 328 | size_t l = scm_to_unsigned_integer (k, 0, VECTOR_MAX_LENGTH); |
e11e83f3 | 329 | |
1b9be268 | 330 | if (SCM_UNBNDP (fill)) |
d60cebe2 | 331 | fill = SCM_UNSPECIFIED; |
e11e83f3 MV |
332 | |
333 | return scm_c_make_vector (l, fill); | |
00ffa0e7 KN |
334 | } |
335 | #undef FUNC_NAME | |
336 | ||
e382fdbe | 337 | |
00ffa0e7 | 338 | SCM |
88797580 | 339 | scm_c_make_vector (size_t k, SCM fill) |
00ffa0e7 KN |
340 | #define FUNC_NAME s_scm_make_vector |
341 | { | |
342 | SCM v; | |
6e708ef2 | 343 | SCM *base; |
1b9be268 | 344 | |
e382fdbe DH |
345 | if (k > 0) |
346 | { | |
c014a02e | 347 | unsigned long int j; |
1b9be268 | 348 | |
6e708ef2 | 349 | SCM_ASSERT_RANGE (1, scm_from_ulong (k), k <= VECTOR_MAX_LENGTH); |
1b9be268 | 350 | |
6e708ef2 | 351 | base = scm_gc_malloc (k * sizeof (SCM), "vector"); |
e382fdbe | 352 | for (j = 0; j != k; ++j) |
6e708ef2 | 353 | base[j] = fill; |
e382fdbe DH |
354 | } |
355 | else | |
356 | base = NULL; | |
1b9be268 | 357 | |
bc743877 | 358 | v = scm_immutable_cell ((k << 8) | scm_tc7_vector, (scm_t_bits) base); |
e382fdbe | 359 | scm_remember_upto_here_1 (fill); |
1b9be268 | 360 | |
0f2d19dd JB |
361 | return v; |
362 | } | |
1bbd0b84 | 363 | #undef FUNC_NAME |
0f2d19dd | 364 | |
6e708ef2 MV |
365 | SCM_DEFINE (scm_vector_copy, "vector-copy", 1, 0, 0, |
366 | (SCM vec), | |
367 | "Return a copy of @var{vec}.") | |
368 | #define FUNC_NAME s_scm_vector_copy | |
369 | { | |
370 | scm_t_array_handle handle; | |
371 | size_t i, len; | |
372 | ssize_t inc; | |
373 | const SCM *src; | |
374 | SCM *dst; | |
375 | ||
376 | src = scm_vector_elements (vec, &handle, &len, &inc); | |
377 | dst = scm_gc_malloc (len * sizeof (SCM), "vector"); | |
378 | for (i = 0; i < len; i++, src += inc) | |
379 | dst[i] = *src; | |
c8857a4d | 380 | scm_array_handle_release (&handle); |
6e708ef2 MV |
381 | |
382 | return scm_cell ((len << 8) | scm_tc7_vector, (scm_t_bits) dst); | |
383 | } | |
384 | #undef FUNC_NAME | |
385 | ||
386 | void | |
387 | scm_i_vector_free (SCM vec) | |
388 | { | |
389 | scm_gc_free (SCM_I_VECTOR_WELTS (vec), | |
390 | SCM_I_VECTOR_LENGTH (vec) * sizeof(SCM), | |
391 | "vector"); | |
392 | } | |
393 | ||
d525e4f9 LC |
394 | \f |
395 | /* Weak vectors. */ | |
396 | ||
397 | ||
398 | /* Initialize RET as a weak vector of type TYPE of SIZE elements pointed to | |
399 | by BASE. */ | |
400 | #define MAKE_WEAK_VECTOR(_ret, _type, _size, _base) \ | |
401 | (_ret) = scm_double_cell ((_size << 8) | scm_tc7_wvect, \ | |
402 | (scm_t_bits) (_base), \ | |
403 | (_type), \ | |
404 | SCM_UNPACK (SCM_EOL)); | |
405 | ||
406 | ||
407 | /* Allocate memory for the elements of a weak vector on behalf of the | |
408 | caller. */ | |
409 | static SCM * | |
410 | allocate_weak_vector (scm_t_bits type, size_t c_size) | |
6e708ef2 | 411 | { |
6e708ef2 | 412 | SCM *base; |
d525e4f9 LC |
413 | |
414 | if (c_size > 0) | |
415 | /* The base itself should not be scanned for pointers otherwise those | |
416 | pointers will always be reachable. */ | |
417 | base = scm_gc_malloc_pointerless (c_size * sizeof (SCM), "weak vector"); | |
418 | else | |
419 | base = NULL; | |
420 | ||
421 | return base; | |
422 | } | |
423 | ||
424 | /* Return a new weak vector. The allocated vector will be of the given weak | |
425 | vector subtype. It will contain SIZE elements which are initialized with | |
426 | the FILL object, or, if FILL is undefined, with an unspecified object. */ | |
427 | SCM | |
428 | scm_i_make_weak_vector (scm_t_bits type, SCM size, SCM fill) | |
429 | { | |
430 | SCM wv, *base; | |
431 | size_t c_size, j; | |
432 | ||
433 | if (SCM_UNBNDP (fill)) | |
434 | fill = SCM_UNSPECIFIED; | |
6e708ef2 MV |
435 | |
436 | c_size = scm_to_unsigned_integer (size, 0, VECTOR_MAX_LENGTH); | |
d525e4f9 | 437 | base = allocate_weak_vector (type, c_size); |
6e708ef2 | 438 | |
d525e4f9 LC |
439 | for (j = 0; j != c_size; ++j) |
440 | base[j] = fill; | |
3a2de079 | 441 | |
d525e4f9 | 442 | MAKE_WEAK_VECTOR (wv, type, c_size, base); |
3a2de079 | 443 | |
d525e4f9 LC |
444 | return wv; |
445 | } | |
446 | ||
447 | /* Return a new weak vector with type TYPE and whose content are taken from | |
448 | list LST. */ | |
449 | SCM | |
450 | scm_i_make_weak_vector_from_list (scm_t_bits type, SCM lst) | |
451 | { | |
452 | SCM wv, *base, *elt; | |
453 | long c_size; | |
454 | ||
455 | c_size = scm_ilength (lst); | |
456 | SCM_ASSERT (c_size >= 0, lst, SCM_ARG2, "scm_i_make_weak_vector_from_list"); | |
457 | ||
458 | base = allocate_weak_vector (type, (size_t)c_size); | |
459 | for (elt = base; | |
460 | scm_is_pair (lst); | |
461 | lst = SCM_CDR (lst), elt++) | |
462 | { | |
463 | *elt = SCM_CAR (lst); | |
6e708ef2 | 464 | } |
6e708ef2 | 465 | |
d525e4f9 | 466 | MAKE_WEAK_VECTOR (wv, type, (size_t)c_size, base); |
6e708ef2 | 467 | |
d525e4f9 | 468 | return wv; |
6e708ef2 | 469 | } |
e382fdbe | 470 | |
d525e4f9 LC |
471 | |
472 | \f | |
3b3b36dd | 473 | SCM_DEFINE (scm_vector_to_list, "vector->list", 1, 0, 0, |
1e6808ea | 474 | (SCM v), |
8f85c0c6 | 475 | "Return a newly allocated list composed of the elements of @var{v}.\n" |
1e6808ea | 476 | "\n" |
942e5b91 MG |
477 | "@lisp\n" |
478 | "(vector->list '#(dah dah didah)) @result{} (dah dah didah)\n" | |
479 | "(list->vector '(dididit dah)) @result{} #(dididit dah)\n" | |
480 | "@end lisp") | |
1bbd0b84 | 481 | #define FUNC_NAME s_scm_vector_to_list |
0f2d19dd | 482 | { |
6e708ef2 MV |
483 | SCM res = SCM_EOL; |
484 | const SCM *data; | |
485 | scm_t_array_handle handle; | |
22be72d3 | 486 | size_t i, count, len; |
6e708ef2 MV |
487 | ssize_t inc; |
488 | ||
489 | data = scm_vector_elements (v, &handle, &len, &inc); | |
22be72d3 LC |
490 | for (i = (len - 1) * inc, count = 0; |
491 | count < len; | |
492 | i -= inc, count++) | |
493 | res = scm_cons (data[i], res); | |
494 | ||
c8857a4d | 495 | scm_array_handle_release (&handle); |
6e708ef2 | 496 | return res; |
0f2d19dd | 497 | } |
1bbd0b84 | 498 | #undef FUNC_NAME |
0f2d19dd JB |
499 | |
500 | ||
a1ec6916 | 501 | SCM_DEFINE (scm_vector_fill_x, "vector-fill!", 2, 0, 0, |
1e6808ea | 502 | (SCM v, SCM fill), |
8f85c0c6 | 503 | "Store @var{fill} in every position of @var{vector}. The value\n" |
1e6808ea | 504 | "returned by @code{vector-fill!} is unspecified.") |
1bbd0b84 | 505 | #define FUNC_NAME s_scm_vector_fill_x |
0f2d19dd | 506 | { |
6e708ef2 MV |
507 | scm_t_array_handle handle; |
508 | SCM *data; | |
509 | size_t i, len; | |
510 | ssize_t inc; | |
511 | ||
512 | data = scm_vector_writable_elements (v, &handle, &len, &inc); | |
513 | for (i = 0; i < len; i += inc) | |
514 | data[i] = fill; | |
c8857a4d | 515 | scm_array_handle_release (&handle); |
6e708ef2 | 516 | return SCM_UNSPECIFIED; |
0f2d19dd | 517 | } |
1bbd0b84 | 518 | #undef FUNC_NAME |
0f2d19dd JB |
519 | |
520 | ||
0f2d19dd | 521 | SCM |
354116f7 | 522 | scm_i_vector_equal_p (SCM x, SCM y) |
0f2d19dd | 523 | { |
c014a02e | 524 | long i; |
6e708ef2 MV |
525 | for (i = SCM_I_VECTOR_LENGTH (x) - 1; i >= 0; i--) |
526 | if (scm_is_false (scm_equal_p (SCM_I_VECTOR_ELTS (x)[i], | |
527 | SCM_I_VECTOR_ELTS (y)[i]))) | |
0f2d19dd JB |
528 | return SCM_BOOL_F; |
529 | return SCM_BOOL_T; | |
530 | } | |
531 | ||
532 | ||
a1ec6916 | 533 | SCM_DEFINE (scm_vector_move_left_x, "vector-move-left!", 5, 0, 0, |
1bbd0b84 | 534 | (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2), |
694a9bb3 NJ |
535 | "Copy elements from @var{vec1}, positions @var{start1} to @var{end1},\n" |
536 | "to @var{vec2} starting at position @var{start2}. @var{start1} and\n" | |
537 | "@var{start2} are inclusive indices; @var{end1} is exclusive.\n\n" | |
538 | "@code{vector-move-left!} copies elements in leftmost order.\n" | |
539 | "Therefore, in the case where @var{vec1} and @var{vec2} refer to the\n" | |
540 | "same vector, @code{vector-move-left!} is usually appropriate when\n" | |
541 | "@var{start1} is greater than @var{start2}.") | |
1bbd0b84 | 542 | #define FUNC_NAME s_scm_vector_move_left_x |
0f2d19dd | 543 | { |
6e708ef2 MV |
544 | scm_t_array_handle handle1, handle2; |
545 | const SCM *elts1; | |
546 | SCM *elts2; | |
de5c0f58 | 547 | size_t len1, len2; |
6e708ef2 | 548 | ssize_t inc1, inc2; |
a55c2b68 | 549 | size_t i, j, e; |
6e708ef2 MV |
550 | |
551 | elts1 = scm_vector_elements (vec1, &handle1, &len1, &inc1); | |
552 | elts2 = scm_vector_writable_elements (vec2, &handle2, &len2, &inc2); | |
34d19ef6 | 553 | |
de5c0f58 MV |
554 | i = scm_to_unsigned_integer (start1, 0, len1); |
555 | e = scm_to_unsigned_integer (end1, i, len1); | |
556 | j = scm_to_unsigned_integer (start2, 0, len2 - (i-e)); | |
557 | ||
6e708ef2 MV |
558 | i *= inc1; |
559 | e *= inc1; | |
560 | j *= inc2; | |
561 | for (; i < e; i += inc1, j += inc2) | |
562 | elts2[j] = elts1[i]; | |
563 | ||
c8857a4d MV |
564 | scm_array_handle_release (&handle2); |
565 | scm_array_handle_release (&handle1); | |
566 | ||
0f2d19dd JB |
567 | return SCM_UNSPECIFIED; |
568 | } | |
1bbd0b84 | 569 | #undef FUNC_NAME |
0f2d19dd | 570 | |
a1ec6916 | 571 | SCM_DEFINE (scm_vector_move_right_x, "vector-move-right!", 5, 0, 0, |
1bbd0b84 | 572 | (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2), |
694a9bb3 NJ |
573 | "Copy elements from @var{vec1}, positions @var{start1} to @var{end1},\n" |
574 | "to @var{vec2} starting at position @var{start2}. @var{start1} and\n" | |
575 | "@var{start2} are inclusive indices; @var{end1} is exclusive.\n\n" | |
576 | "@code{vector-move-right!} copies elements in rightmost order.\n" | |
577 | "Therefore, in the case where @var{vec1} and @var{vec2} refer to the\n" | |
578 | "same vector, @code{vector-move-right!} is usually appropriate when\n" | |
579 | "@var{start1} is less than @var{start2}.") | |
1bbd0b84 | 580 | #define FUNC_NAME s_scm_vector_move_right_x |
0f2d19dd | 581 | { |
6e708ef2 MV |
582 | scm_t_array_handle handle1, handle2; |
583 | const SCM *elts1; | |
584 | SCM *elts2; | |
de5c0f58 | 585 | size_t len1, len2; |
6e708ef2 | 586 | ssize_t inc1, inc2; |
a55c2b68 | 587 | size_t i, j, e; |
6e708ef2 MV |
588 | |
589 | elts1 = scm_vector_elements (vec1, &handle1, &len1, &inc1); | |
590 | elts2 = scm_vector_writable_elements (vec2, &handle2, &len2, &inc2); | |
0f2d19dd | 591 | |
de5c0f58 MV |
592 | i = scm_to_unsigned_integer (start1, 0, len1); |
593 | e = scm_to_unsigned_integer (end1, i, len1); | |
594 | j = scm_to_unsigned_integer (start2, 0, len2 - (i-e)); | |
595 | ||
6e708ef2 MV |
596 | i *= inc1; |
597 | e *= inc1; | |
598 | j *= inc2; | |
599 | while (i < e) | |
de5c0f58 | 600 | { |
6e708ef2 MV |
601 | e -= inc1; |
602 | j -= inc2; | |
603 | elts2[j] = elts1[e]; | |
de5c0f58 | 604 | } |
6e708ef2 | 605 | |
c8857a4d MV |
606 | scm_array_handle_release (&handle2); |
607 | scm_array_handle_release (&handle1); | |
608 | ||
0f2d19dd JB |
609 | return SCM_UNSPECIFIED; |
610 | } | |
1bbd0b84 | 611 | #undef FUNC_NAME |
0f2d19dd | 612 | |
438974d0 | 613 | \f |
2a610be5 AW |
614 | static SCM |
615 | vector_handle_ref (scm_t_array_handle *h, size_t idx) | |
88797580 | 616 | { |
2a610be5 AW |
617 | if (idx > h->dims[0].ubnd) |
618 | scm_out_of_range ("vector-handle-ref", scm_from_size_t (idx)); | |
619 | return ((SCM*)h->elements)[idx]; | |
88797580 MV |
620 | } |
621 | ||
2a610be5 AW |
622 | static void |
623 | vector_handle_set (scm_t_array_handle *h, size_t idx, SCM val) | |
88797580 | 624 | { |
2a610be5 AW |
625 | if (idx > h->dims[0].ubnd) |
626 | scm_out_of_range ("vector-handle-set!", scm_from_size_t (idx)); | |
627 | ((SCM*)h->writable_elements)[idx] = val; | |
88797580 | 628 | } |
88797580 | 629 | |
2a610be5 AW |
630 | static void |
631 | vector_get_handle (SCM v, scm_t_array_handle *h) | |
88797580 | 632 | { |
2a610be5 AW |
633 | h->array = v; |
634 | h->ndims = 1; | |
635 | h->dims = &h->dim0; | |
636 | h->dim0.lbnd = 0; | |
637 | h->dim0.ubnd = SCM_I_VECTOR_LENGTH (v) - 1; | |
638 | h->dim0.inc = 1; | |
639 | h->element_type = SCM_ARRAY_ELEMENT_TYPE_SCM; | |
640 | h->elements = h->writable_elements = SCM_I_VECTOR_WELTS (v); | |
88797580 MV |
641 | } |
642 | ||
2a610be5 AW |
643 | SCM_ARRAY_IMPLEMENTATION (scm_tc7_vector, 0x7f & ~2, |
644 | vector_handle_ref, vector_handle_set, | |
645 | vector_get_handle); | |
646 | SCM_ARRAY_IMPLEMENTATION (scm_tc7_wvect, 0x7f & ~2, | |
647 | vector_handle_ref, vector_handle_set, | |
648 | vector_get_handle); | |
f45eccff | 649 | SCM_VECTOR_IMPLEMENTATION (SCM_ARRAY_ELEMENT_TYPE_SCM, scm_make_vector); |
88797580 | 650 | |
1cc91f1b | 651 | |
0f2d19dd JB |
652 | void |
653 | scm_init_vectors () | |
0f2d19dd | 654 | { |
7c33806a DH |
655 | scm_nullvect = scm_c_make_vector (0, SCM_UNDEFINED); |
656 | ||
a0599745 | 657 | #include "libguile/vectors.x" |
0f2d19dd JB |
658 | } |
659 | ||
89e00824 ML |
660 | |
661 | /* | |
662 | Local Variables: | |
663 | c-file-style: "gnu" | |
664 | End: | |
665 | */ |