Commit | Line | Data |
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cd038da5 | 1 | /* Copyright (C) 1995,1996,1998,1999,2000,2001, 2006, 2008, 2009, 2010 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" | |
29 | ||
30 | #include "libguile/validate.h" | |
31 | #include "libguile/vectors.h" | |
5c39373f | 32 | #include "libguile/arrays.h" /* Hit me with the ugly stick */ |
f332e957 | 33 | #include "libguile/generalized-vectors.h" |
88797580 MV |
34 | #include "libguile/strings.h" |
35 | #include "libguile/srfi-13.h" | |
1d0df896 | 36 | #include "libguile/dynwind.h" |
6e708ef2 | 37 | #include "libguile/deprecation.h" |
88797580 | 38 | |
1c44468d | 39 | #include "libguile/bdw-gc.h" |
3a2de079 LC |
40 | |
41 | ||
0f2d19dd JB |
42 | \f |
43 | ||
6e708ef2 MV |
44 | #define VECTOR_MAX_LENGTH (SCM_T_BITS_MAX >> 8) |
45 | ||
6e708ef2 MV |
46 | int |
47 | scm_is_vector (SCM obj) | |
48 | { | |
49 | if (SCM_I_IS_VECTOR (obj)) | |
50 | return 1; | |
04b87de5 | 51 | if (SCM_I_ARRAYP (obj) && SCM_I_ARRAY_NDIM (obj) == 1) |
6e708ef2 | 52 | { |
04b87de5 | 53 | SCM v = SCM_I_ARRAY_V (obj); |
6e708ef2 MV |
54 | return SCM_I_IS_VECTOR (v); |
55 | } | |
56 | return 0; | |
57 | } | |
58 | ||
59 | int | |
60 | scm_is_simple_vector (SCM obj) | |
1d0df896 | 61 | { |
6e708ef2 | 62 | return SCM_I_IS_VECTOR (obj); |
1d0df896 MV |
63 | } |
64 | ||
354116f7 MV |
65 | const SCM * |
66 | scm_vector_elements (SCM vec, scm_t_array_handle *h, | |
67 | size_t *lenp, ssize_t *incp) | |
68 | { | |
3a2de079 LC |
69 | if (SCM_I_WVECTP (vec)) |
70 | /* FIXME: We should check each (weak) element of the vector for NULL and | |
71 | convert it to SCM_BOOL_F. */ | |
72 | abort (); | |
73 | ||
354116f7 MV |
74 | scm_generalized_vector_get_handle (vec, h); |
75 | if (lenp) | |
76 | { | |
77 | scm_t_array_dim *dim = scm_array_handle_dims (h); | |
78 | *lenp = dim->ubnd - dim->lbnd + 1; | |
79 | *incp = dim->inc; | |
80 | } | |
81 | return scm_array_handle_elements (h); | |
82 | } | |
83 | ||
84 | SCM * | |
85 | scm_vector_writable_elements (SCM vec, scm_t_array_handle *h, | |
86 | size_t *lenp, ssize_t *incp) | |
87 | { | |
3a2de079 LC |
88 | if (SCM_I_WVECTP (vec)) |
89 | /* FIXME: We should check each (weak) element of the vector for NULL and | |
90 | convert it to SCM_BOOL_F. */ | |
91 | abort (); | |
92 | ||
354116f7 MV |
93 | scm_generalized_vector_get_handle (vec, h); |
94 | if (lenp) | |
95 | { | |
96 | scm_t_array_dim *dim = scm_array_handle_dims (h); | |
97 | *lenp = dim->ubnd - dim->lbnd + 1; | |
98 | *incp = dim->inc; | |
99 | } | |
100 | return scm_array_handle_writable_elements (h); | |
101 | } | |
102 | ||
a1ec6916 | 103 | SCM_DEFINE (scm_vector_p, "vector?", 1, 0, 0, |
5ffe9968 | 104 | (SCM obj), |
1e6808ea MG |
105 | "Return @code{#t} if @var{obj} is a vector, otherwise return\n" |
106 | "@code{#f}.") | |
1bbd0b84 | 107 | #define FUNC_NAME s_scm_vector_p |
0f2d19dd | 108 | { |
de5c0f58 | 109 | return scm_from_bool (scm_is_vector (obj)); |
0f2d19dd | 110 | } |
1bbd0b84 | 111 | #undef FUNC_NAME |
0f2d19dd | 112 | |
f172c0b7 | 113 | SCM_GPROC (s_vector_length, "vector-length", 1, 0, 0, scm_vector_length, g_vector_length); |
1e6808ea | 114 | /* Returns the number of elements in @var{vector} as an exact integer. */ |
0f2d19dd | 115 | SCM |
f172c0b7 | 116 | scm_vector_length (SCM v) |
0f2d19dd | 117 | { |
6e708ef2 MV |
118 | if (SCM_I_IS_VECTOR (v)) |
119 | return scm_from_size_t (SCM_I_VECTOR_LENGTH (v)); | |
04b87de5 | 120 | else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1) |
de5c0f58 | 121 | { |
04b87de5 | 122 | scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v); |
de5c0f58 MV |
123 | return scm_from_size_t (dim->ubnd - dim->lbnd + 1); |
124 | } | |
125 | else | |
126 | SCM_WTA_DISPATCH_1 (g_vector_length, v, 1, NULL); | |
0f2d19dd JB |
127 | } |
128 | ||
88797580 MV |
129 | size_t |
130 | scm_c_vector_length (SCM v) | |
131 | { | |
6e708ef2 MV |
132 | if (SCM_I_IS_VECTOR (v)) |
133 | return SCM_I_VECTOR_LENGTH (v); | |
88797580 | 134 | else |
de5c0f58 | 135 | return scm_to_size_t (scm_vector_length (v)); |
88797580 MV |
136 | } |
137 | ||
f172c0b7 | 138 | SCM_REGISTER_PROC (s_list_to_vector, "list->vector", 1, 0, 0, scm_vector); |
5ffe9968 | 139 | /* |
942e5b91 MG |
140 | "Return a newly created vector initialized to the elements of" |
141 | "the list @var{list}.\n\n" | |
142 | "@lisp\n" | |
143 | "(vector->list '#(dah dah didah)) @result{} (dah dah didah)\n" | |
144 | "(list->vector '(dididit dah)) @result{} #(dididit dah)\n" | |
145 | "@end lisp") | |
5ffe9968 | 146 | */ |
a1ec6916 | 147 | SCM_DEFINE (scm_vector, "vector", 0, 0, 1, |
f172c0b7 | 148 | (SCM l), |
8f85c0c6 NJ |
149 | "@deffnx {Scheme Procedure} list->vector l\n" |
150 | "Return a newly allocated vector composed of the\n" | |
1e6808ea MG |
151 | "given arguments. Analogous to @code{list}.\n" |
152 | "\n" | |
942e5b91 | 153 | "@lisp\n" |
1e6808ea | 154 | "(vector 'a 'b 'c) @result{} #(a b c)\n" |
942e5b91 | 155 | "@end lisp") |
1bbd0b84 | 156 | #define FUNC_NAME s_scm_vector |
0f2d19dd JB |
157 | { |
158 | SCM res; | |
22a52da1 | 159 | SCM *data; |
1d0df896 | 160 | long i, len; |
6e708ef2 | 161 | scm_t_array_handle handle; |
22a52da1 | 162 | |
1d0df896 | 163 | SCM_VALIDATE_LIST_COPYLEN (1, l, len); |
34d19ef6 | 164 | |
6e708ef2 MV |
165 | res = scm_c_make_vector (len, SCM_UNSPECIFIED); |
166 | data = scm_vector_writable_elements (res, &handle, NULL, NULL); | |
1d0df896 | 167 | i = 0; |
c8857a4d | 168 | while (scm_is_pair (l) && i < len) |
22a52da1 | 169 | { |
1d0df896 | 170 | data[i] = SCM_CAR (l); |
22a52da1 | 171 | l = SCM_CDR (l); |
6e708ef2 | 172 | i += 1; |
22a52da1 DH |
173 | } |
174 | ||
c8857a4d MV |
175 | scm_array_handle_release (&handle); |
176 | ||
0f2d19dd JB |
177 | return res; |
178 | } | |
1bbd0b84 | 179 | #undef FUNC_NAME |
0f2d19dd | 180 | |
f172c0b7 | 181 | SCM_GPROC (s_vector_ref, "vector-ref", 2, 0, 0, scm_vector_ref, g_vector_ref); |
1cc91f1b | 182 | |
5ffe9968 GB |
183 | /* |
184 | "@var{k} must be a valid index of @var{vector}.\n" | |
185 | "@samp{Vector-ref} returns the contents of element @var{k} of\n" | |
186 | "@var{vector}.\n\n" | |
942e5b91 MG |
187 | "@lisp\n" |
188 | "(vector-ref '#(1 1 2 3 5 8 13 21) 5) @result{} 8\n" | |
5ffe9968 GB |
189 | "(vector-ref '#(1 1 2 3 5 8 13 21)\n" |
190 | " (let ((i (round (* 2 (acos -1)))))\n" | |
191 | " (if (inexact? i)\n" | |
192 | " (inexact->exact i)\n" | |
942e5b91 MG |
193 | " i))) @result{} 13\n" |
194 | "@end lisp" | |
5ffe9968 GB |
195 | */ |
196 | ||
0f2d19dd | 197 | SCM |
ea633082 | 198 | scm_vector_ref (SCM v, SCM k) |
685c0d71 | 199 | #define FUNC_NAME s_vector_ref |
0f2d19dd | 200 | { |
de5c0f58 | 201 | return scm_c_vector_ref (v, scm_to_size_t (k)); |
0f2d19dd | 202 | } |
685c0d71 | 203 | #undef FUNC_NAME |
0f2d19dd | 204 | |
88797580 MV |
205 | SCM |
206 | scm_c_vector_ref (SCM v, size_t k) | |
207 | { | |
6e708ef2 | 208 | if (SCM_I_IS_VECTOR (v)) |
de5c0f58 | 209 | { |
3a2de079 LC |
210 | register SCM elt; |
211 | ||
6e708ef2 | 212 | if (k >= SCM_I_VECTOR_LENGTH (v)) |
3a2de079 LC |
213 | scm_out_of_range (NULL, scm_from_size_t (k)); |
214 | elt = (SCM_I_VECTOR_ELTS(v))[k]; | |
215 | ||
216 | if ((elt == SCM_PACK (NULL)) && SCM_I_WVECTP (v)) | |
217 | /* ELT was a weak pointer and got nullified by the GC. */ | |
218 | return SCM_BOOL_F; | |
219 | ||
220 | return elt; | |
de5c0f58 | 221 | } |
04b87de5 | 222 | else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1) |
88797580 | 223 | { |
04b87de5 MV |
224 | scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v); |
225 | SCM vv = SCM_I_ARRAY_V (v); | |
6e708ef2 MV |
226 | if (SCM_I_IS_VECTOR (vv)) |
227 | { | |
3a2de079 LC |
228 | register SCM elt; |
229 | ||
6e708ef2 MV |
230 | if (k >= dim->ubnd - dim->lbnd + 1) |
231 | scm_out_of_range (NULL, scm_from_size_t (k)); | |
04b87de5 | 232 | k = SCM_I_ARRAY_BASE (v) + k*dim->inc; |
3a2de079 LC |
233 | elt = (SCM_I_VECTOR_ELTS (vv))[k]; |
234 | ||
235 | if ((elt == SCM_PACK (NULL)) && (SCM_I_WVECTP (vv))) | |
236 | /* ELT was a weak pointer and got nullified by the GC. */ | |
237 | return SCM_BOOL_F; | |
238 | ||
239 | return elt; | |
6e708ef2 MV |
240 | } |
241 | scm_wrong_type_arg_msg (NULL, 0, v, "non-uniform vector"); | |
88797580 | 242 | } |
de5c0f58 MV |
243 | else |
244 | SCM_WTA_DISPATCH_2 (g_vector_ref, v, scm_from_size_t (k), 2, NULL); | |
88797580 MV |
245 | } |
246 | ||
f172c0b7 | 247 | SCM_GPROC (s_vector_set_x, "vector-set!", 3, 0, 0, scm_vector_set_x, g_vector_set_x); |
1cc91f1b | 248 | |
942e5b91 MG |
249 | /* "@var{k} must be a valid index of @var{vector}.\n" |
250 | "@code{Vector-set!} stores @var{obj} in element @var{k} of @var{vector}.\n" | |
251 | "The value returned by @samp{vector-set!} is unspecified.\n" | |
252 | "@lisp\n" | |
253 | "(let ((vec (vector 0 '(2 2 2 2) "Anna")))\n" | |
254 | " (vector-set! vec 1 '("Sue" "Sue"))\n" | |
255 | " vec) @result{} #(0 ("Sue" "Sue") "Anna")\n" | |
256 | "(vector-set! '#(0 1 2) 1 "doe") @result{} @emph{error} ; constant vector\n" | |
257 | "@end lisp" | |
5ffe9968 GB |
258 | */ |
259 | ||
0f2d19dd | 260 | SCM |
f172c0b7 | 261 | scm_vector_set_x (SCM v, SCM k, SCM obj) |
685c0d71 | 262 | #define FUNC_NAME s_vector_set_x |
0f2d19dd | 263 | { |
de5c0f58 | 264 | scm_c_vector_set_x (v, scm_to_size_t (k), obj); |
60c497a3 | 265 | return SCM_UNSPECIFIED; |
0f2d19dd | 266 | } |
685c0d71 | 267 | #undef FUNC_NAME |
0f2d19dd | 268 | |
de5c0f58 | 269 | void |
88797580 MV |
270 | scm_c_vector_set_x (SCM v, size_t k, SCM obj) |
271 | { | |
6e708ef2 | 272 | if (SCM_I_IS_VECTOR (v)) |
88797580 | 273 | { |
6e708ef2 | 274 | if (k >= SCM_I_VECTOR_LENGTH (v)) |
de5c0f58 | 275 | scm_out_of_range (NULL, scm_from_size_t (k)); |
6e708ef2 | 276 | (SCM_I_VECTOR_WELTS(v))[k] = obj; |
3a2de079 LC |
277 | if (SCM_I_WVECTP (v)) |
278 | { | |
279 | /* Make it a weak pointer. */ | |
280 | GC_PTR link = (GC_PTR) & ((SCM_I_VECTOR_WELTS (v))[k]); | |
dbe4d258 | 281 | SCM_I_REGISTER_DISAPPEARING_LINK (link, obj); |
3a2de079 | 282 | } |
de5c0f58 | 283 | } |
04b87de5 | 284 | else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1) |
de5c0f58 | 285 | { |
04b87de5 MV |
286 | scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v); |
287 | SCM vv = SCM_I_ARRAY_V (v); | |
6e708ef2 MV |
288 | if (SCM_I_IS_VECTOR (vv)) |
289 | { | |
290 | if (k >= dim->ubnd - dim->lbnd + 1) | |
291 | scm_out_of_range (NULL, scm_from_size_t (k)); | |
04b87de5 | 292 | k = SCM_I_ARRAY_BASE (v) + k*dim->inc; |
6e708ef2 | 293 | (SCM_I_VECTOR_WELTS (vv))[k] = obj; |
3a2de079 LC |
294 | |
295 | if (SCM_I_WVECTP (vv)) | |
296 | { | |
297 | /* Make it a weak pointer. */ | |
298 | GC_PTR link = (GC_PTR) & ((SCM_I_VECTOR_WELTS (vv))[k]); | |
dbe4d258 | 299 | SCM_I_REGISTER_DISAPPEARING_LINK (link, obj); |
3a2de079 | 300 | } |
6e708ef2 MV |
301 | } |
302 | else | |
303 | scm_wrong_type_arg_msg (NULL, 0, v, "non-uniform vector"); | |
88797580 MV |
304 | } |
305 | else | |
306 | { | |
de5c0f58 MV |
307 | if (SCM_UNPACK (g_vector_set_x)) |
308 | scm_apply_generic (g_vector_set_x, | |
309 | scm_list_3 (v, scm_from_size_t (k), obj)); | |
310 | else | |
311 | scm_wrong_type_arg_msg (NULL, 0, v, "vector"); | |
88797580 MV |
312 | } |
313 | } | |
0f2d19dd | 314 | |
a1ec6916 | 315 | SCM_DEFINE (scm_make_vector, "make-vector", 1, 1, 0, |
1bbd0b84 | 316 | (SCM k, SCM fill), |
1e6808ea | 317 | "Return a newly allocated vector of @var{k} elements. If a\n" |
8f85c0c6 NJ |
318 | "second argument is given, then each position is initialized to\n" |
319 | "@var{fill}. Otherwise the initial contents of each position is\n" | |
1e6808ea | 320 | "unspecified.") |
1bbd0b84 | 321 | #define FUNC_NAME s_scm_make_vector |
0f2d19dd | 322 | { |
6e708ef2 | 323 | size_t l = scm_to_unsigned_integer (k, 0, VECTOR_MAX_LENGTH); |
e11e83f3 | 324 | |
1b9be268 | 325 | if (SCM_UNBNDP (fill)) |
d60cebe2 | 326 | fill = SCM_UNSPECIFIED; |
e11e83f3 MV |
327 | |
328 | return scm_c_make_vector (l, fill); | |
00ffa0e7 KN |
329 | } |
330 | #undef FUNC_NAME | |
331 | ||
e382fdbe | 332 | |
00ffa0e7 | 333 | SCM |
88797580 | 334 | scm_c_make_vector (size_t k, SCM fill) |
00ffa0e7 KN |
335 | #define FUNC_NAME s_scm_make_vector |
336 | { | |
ed7e0765 | 337 | SCM *vector; |
1b9be268 | 338 | |
ed7e0765 LC |
339 | vector = (SCM *) |
340 | scm_gc_malloc ((k + SCM_I_VECTOR_HEADER_SIZE) * sizeof (SCM), | |
341 | "vector"); | |
342 | ||
343 | if (k > 0) | |
e382fdbe | 344 | { |
ed7e0765 | 345 | SCM *base; |
c014a02e | 346 | unsigned long int j; |
1b9be268 | 347 | |
6e708ef2 | 348 | SCM_ASSERT_RANGE (1, scm_from_ulong (k), k <= VECTOR_MAX_LENGTH); |
1b9be268 | 349 | |
ed7e0765 | 350 | base = vector + SCM_I_VECTOR_HEADER_SIZE; |
e382fdbe | 351 | for (j = 0; j != k; ++j) |
6e708ef2 | 352 | base[j] = fill; |
e382fdbe | 353 | } |
1b9be268 | 354 | |
ed7e0765 LC |
355 | ((scm_t_bits *) vector)[0] = (k << 8) | scm_tc7_vector; |
356 | ((scm_t_bits *) vector)[1] = 0; | |
1b9be268 | 357 | |
ed7e0765 | 358 | return PTR2SCM (vector); |
0f2d19dd | 359 | } |
1bbd0b84 | 360 | #undef FUNC_NAME |
0f2d19dd | 361 | |
6e708ef2 MV |
362 | SCM_DEFINE (scm_vector_copy, "vector-copy", 1, 0, 0, |
363 | (SCM vec), | |
364 | "Return a copy of @var{vec}.") | |
365 | #define FUNC_NAME s_scm_vector_copy | |
366 | { | |
367 | scm_t_array_handle handle; | |
368 | size_t i, len; | |
369 | ssize_t inc; | |
370 | const SCM *src; | |
ed7e0765 | 371 | SCM result, *dst; |
6e708ef2 MV |
372 | |
373 | src = scm_vector_elements (vec, &handle, &len, &inc); | |
ed7e0765 LC |
374 | |
375 | result = scm_c_make_vector (len, SCM_UNDEFINED); | |
376 | dst = SCM_I_VECTOR_WELTS (result); | |
6e708ef2 MV |
377 | for (i = 0; i < len; i++, src += inc) |
378 | dst[i] = *src; | |
ed7e0765 | 379 | |
c8857a4d | 380 | scm_array_handle_release (&handle); |
6e708ef2 | 381 | |
ed7e0765 | 382 | return result; |
6e708ef2 MV |
383 | } |
384 | #undef FUNC_NAME | |
385 | ||
d525e4f9 LC |
386 | \f |
387 | /* Weak vectors. */ | |
388 | ||
d525e4f9 LC |
389 | /* Allocate memory for the elements of a weak vector on behalf of the |
390 | caller. */ | |
ed7e0765 LC |
391 | static SCM |
392 | make_weak_vector (scm_t_bits type, size_t c_size) | |
6e708ef2 | 393 | { |
ed7e0765 LC |
394 | SCM *vector; |
395 | size_t total_size; | |
d525e4f9 | 396 | |
ed7e0765 LC |
397 | total_size = (c_size + SCM_I_VECTOR_HEADER_SIZE) * sizeof (SCM); |
398 | vector = (SCM *) scm_gc_malloc_pointerless (total_size, "weak vector"); | |
d525e4f9 | 399 | |
ed7e0765 LC |
400 | ((scm_t_bits *) vector)[0] = (c_size << 8) | scm_tc7_wvect; |
401 | ((scm_t_bits *) vector)[1] = type; | |
402 | ||
403 | return PTR2SCM (vector); | |
d525e4f9 LC |
404 | } |
405 | ||
406 | /* Return a new weak vector. The allocated vector will be of the given weak | |
407 | vector subtype. It will contain SIZE elements which are initialized with | |
408 | the FILL object, or, if FILL is undefined, with an unspecified object. */ | |
409 | SCM | |
410 | scm_i_make_weak_vector (scm_t_bits type, SCM size, SCM fill) | |
411 | { | |
412 | SCM wv, *base; | |
413 | size_t c_size, j; | |
414 | ||
415 | if (SCM_UNBNDP (fill)) | |
416 | fill = SCM_UNSPECIFIED; | |
6e708ef2 MV |
417 | |
418 | c_size = scm_to_unsigned_integer (size, 0, VECTOR_MAX_LENGTH); | |
ed7e0765 LC |
419 | wv = make_weak_vector (type, c_size); |
420 | base = SCM_I_WVECT_GC_WVELTS (wv); | |
6e708ef2 | 421 | |
d525e4f9 LC |
422 | for (j = 0; j != c_size; ++j) |
423 | base[j] = fill; | |
3a2de079 | 424 | |
d525e4f9 LC |
425 | return wv; |
426 | } | |
427 | ||
428 | /* Return a new weak vector with type TYPE and whose content are taken from | |
429 | list LST. */ | |
430 | SCM | |
431 | scm_i_make_weak_vector_from_list (scm_t_bits type, SCM lst) | |
432 | { | |
ed7e0765 | 433 | SCM wv, *elt; |
d525e4f9 LC |
434 | long c_size; |
435 | ||
436 | c_size = scm_ilength (lst); | |
437 | SCM_ASSERT (c_size >= 0, lst, SCM_ARG2, "scm_i_make_weak_vector_from_list"); | |
438 | ||
ed7e0765 LC |
439 | wv = make_weak_vector(type, (size_t) c_size); |
440 | ||
441 | for (elt = SCM_I_WVECT_GC_WVELTS (wv); | |
d525e4f9 LC |
442 | scm_is_pair (lst); |
443 | lst = SCM_CDR (lst), elt++) | |
444 | { | |
445 | *elt = SCM_CAR (lst); | |
6e708ef2 | 446 | } |
6e708ef2 | 447 | |
d525e4f9 | 448 | return wv; |
6e708ef2 | 449 | } |
e382fdbe | 450 | |
d525e4f9 LC |
451 | |
452 | \f | |
3b3b36dd | 453 | SCM_DEFINE (scm_vector_to_list, "vector->list", 1, 0, 0, |
1e6808ea | 454 | (SCM v), |
8f85c0c6 | 455 | "Return a newly allocated list composed of the elements of @var{v}.\n" |
1e6808ea | 456 | "\n" |
942e5b91 MG |
457 | "@lisp\n" |
458 | "(vector->list '#(dah dah didah)) @result{} (dah dah didah)\n" | |
459 | "(list->vector '(dididit dah)) @result{} #(dididit dah)\n" | |
460 | "@end lisp") | |
1bbd0b84 | 461 | #define FUNC_NAME s_scm_vector_to_list |
0f2d19dd | 462 | { |
6e708ef2 MV |
463 | SCM res = SCM_EOL; |
464 | const SCM *data; | |
465 | scm_t_array_handle handle; | |
22be72d3 | 466 | size_t i, count, len; |
6e708ef2 MV |
467 | ssize_t inc; |
468 | ||
469 | data = scm_vector_elements (v, &handle, &len, &inc); | |
22be72d3 LC |
470 | for (i = (len - 1) * inc, count = 0; |
471 | count < len; | |
472 | i -= inc, count++) | |
473 | res = scm_cons (data[i], res); | |
474 | ||
c8857a4d | 475 | scm_array_handle_release (&handle); |
6e708ef2 | 476 | return res; |
0f2d19dd | 477 | } |
1bbd0b84 | 478 | #undef FUNC_NAME |
0f2d19dd JB |
479 | |
480 | ||
a1ec6916 | 481 | SCM_DEFINE (scm_vector_fill_x, "vector-fill!", 2, 0, 0, |
1e6808ea | 482 | (SCM v, SCM fill), |
8f85c0c6 | 483 | "Store @var{fill} in every position of @var{vector}. The value\n" |
1e6808ea | 484 | "returned by @code{vector-fill!} is unspecified.") |
1bbd0b84 | 485 | #define FUNC_NAME s_scm_vector_fill_x |
0f2d19dd | 486 | { |
6e708ef2 MV |
487 | scm_t_array_handle handle; |
488 | SCM *data; | |
489 | size_t i, len; | |
490 | ssize_t inc; | |
491 | ||
492 | data = scm_vector_writable_elements (v, &handle, &len, &inc); | |
493 | for (i = 0; i < len; i += inc) | |
494 | data[i] = fill; | |
c8857a4d | 495 | scm_array_handle_release (&handle); |
6e708ef2 | 496 | return SCM_UNSPECIFIED; |
0f2d19dd | 497 | } |
1bbd0b84 | 498 | #undef FUNC_NAME |
0f2d19dd JB |
499 | |
500 | ||
0f2d19dd | 501 | SCM |
354116f7 | 502 | scm_i_vector_equal_p (SCM x, SCM y) |
0f2d19dd | 503 | { |
c014a02e | 504 | long i; |
6e708ef2 MV |
505 | for (i = SCM_I_VECTOR_LENGTH (x) - 1; i >= 0; i--) |
506 | if (scm_is_false (scm_equal_p (SCM_I_VECTOR_ELTS (x)[i], | |
507 | SCM_I_VECTOR_ELTS (y)[i]))) | |
0f2d19dd JB |
508 | return SCM_BOOL_F; |
509 | return SCM_BOOL_T; | |
510 | } | |
511 | ||
512 | ||
a1ec6916 | 513 | SCM_DEFINE (scm_vector_move_left_x, "vector-move-left!", 5, 0, 0, |
1bbd0b84 | 514 | (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2), |
694a9bb3 NJ |
515 | "Copy elements from @var{vec1}, positions @var{start1} to @var{end1},\n" |
516 | "to @var{vec2} starting at position @var{start2}. @var{start1} and\n" | |
517 | "@var{start2} are inclusive indices; @var{end1} is exclusive.\n\n" | |
518 | "@code{vector-move-left!} copies elements in leftmost order.\n" | |
519 | "Therefore, in the case where @var{vec1} and @var{vec2} refer to the\n" | |
520 | "same vector, @code{vector-move-left!} is usually appropriate when\n" | |
521 | "@var{start1} is greater than @var{start2}.") | |
1bbd0b84 | 522 | #define FUNC_NAME s_scm_vector_move_left_x |
0f2d19dd | 523 | { |
6e708ef2 MV |
524 | scm_t_array_handle handle1, handle2; |
525 | const SCM *elts1; | |
526 | SCM *elts2; | |
de5c0f58 | 527 | size_t len1, len2; |
6e708ef2 | 528 | ssize_t inc1, inc2; |
a55c2b68 | 529 | size_t i, j, e; |
6e708ef2 MV |
530 | |
531 | elts1 = scm_vector_elements (vec1, &handle1, &len1, &inc1); | |
532 | elts2 = scm_vector_writable_elements (vec2, &handle2, &len2, &inc2); | |
34d19ef6 | 533 | |
de5c0f58 MV |
534 | i = scm_to_unsigned_integer (start1, 0, len1); |
535 | e = scm_to_unsigned_integer (end1, i, len1); | |
536 | j = scm_to_unsigned_integer (start2, 0, len2 - (i-e)); | |
537 | ||
6e708ef2 MV |
538 | i *= inc1; |
539 | e *= inc1; | |
540 | j *= inc2; | |
541 | for (; i < e; i += inc1, j += inc2) | |
542 | elts2[j] = elts1[i]; | |
543 | ||
c8857a4d MV |
544 | scm_array_handle_release (&handle2); |
545 | scm_array_handle_release (&handle1); | |
546 | ||
0f2d19dd JB |
547 | return SCM_UNSPECIFIED; |
548 | } | |
1bbd0b84 | 549 | #undef FUNC_NAME |
0f2d19dd | 550 | |
a1ec6916 | 551 | SCM_DEFINE (scm_vector_move_right_x, "vector-move-right!", 5, 0, 0, |
1bbd0b84 | 552 | (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2), |
694a9bb3 NJ |
553 | "Copy elements from @var{vec1}, positions @var{start1} to @var{end1},\n" |
554 | "to @var{vec2} starting at position @var{start2}. @var{start1} and\n" | |
555 | "@var{start2} are inclusive indices; @var{end1} is exclusive.\n\n" | |
556 | "@code{vector-move-right!} copies elements in rightmost order.\n" | |
557 | "Therefore, in the case where @var{vec1} and @var{vec2} refer to the\n" | |
558 | "same vector, @code{vector-move-right!} is usually appropriate when\n" | |
559 | "@var{start1} is less than @var{start2}.") | |
1bbd0b84 | 560 | #define FUNC_NAME s_scm_vector_move_right_x |
0f2d19dd | 561 | { |
6e708ef2 MV |
562 | scm_t_array_handle handle1, handle2; |
563 | const SCM *elts1; | |
564 | SCM *elts2; | |
de5c0f58 | 565 | size_t len1, len2; |
6e708ef2 | 566 | ssize_t inc1, inc2; |
a55c2b68 | 567 | size_t i, j, e; |
6e708ef2 MV |
568 | |
569 | elts1 = scm_vector_elements (vec1, &handle1, &len1, &inc1); | |
570 | elts2 = scm_vector_writable_elements (vec2, &handle2, &len2, &inc2); | |
0f2d19dd | 571 | |
de5c0f58 MV |
572 | i = scm_to_unsigned_integer (start1, 0, len1); |
573 | e = scm_to_unsigned_integer (end1, i, len1); | |
574 | j = scm_to_unsigned_integer (start2, 0, len2 - (i-e)); | |
575 | ||
6e708ef2 MV |
576 | i *= inc1; |
577 | e *= inc1; | |
578 | j *= inc2; | |
579 | while (i < e) | |
de5c0f58 | 580 | { |
6e708ef2 MV |
581 | e -= inc1; |
582 | j -= inc2; | |
583 | elts2[j] = elts1[e]; | |
de5c0f58 | 584 | } |
6e708ef2 | 585 | |
c8857a4d MV |
586 | scm_array_handle_release (&handle2); |
587 | scm_array_handle_release (&handle1); | |
588 | ||
0f2d19dd JB |
589 | return SCM_UNSPECIFIED; |
590 | } | |
1bbd0b84 | 591 | #undef FUNC_NAME |
0f2d19dd | 592 | |
438974d0 | 593 | \f |
2a610be5 AW |
594 | static SCM |
595 | vector_handle_ref (scm_t_array_handle *h, size_t idx) | |
88797580 | 596 | { |
2a610be5 AW |
597 | if (idx > h->dims[0].ubnd) |
598 | scm_out_of_range ("vector-handle-ref", scm_from_size_t (idx)); | |
599 | return ((SCM*)h->elements)[idx]; | |
88797580 MV |
600 | } |
601 | ||
2a610be5 AW |
602 | static void |
603 | vector_handle_set (scm_t_array_handle *h, size_t idx, SCM val) | |
88797580 | 604 | { |
2a610be5 AW |
605 | if (idx > h->dims[0].ubnd) |
606 | scm_out_of_range ("vector-handle-set!", scm_from_size_t (idx)); | |
607 | ((SCM*)h->writable_elements)[idx] = val; | |
88797580 | 608 | } |
88797580 | 609 | |
2a610be5 AW |
610 | static void |
611 | vector_get_handle (SCM v, scm_t_array_handle *h) | |
88797580 | 612 | { |
2a610be5 AW |
613 | h->array = v; |
614 | h->ndims = 1; | |
615 | h->dims = &h->dim0; | |
616 | h->dim0.lbnd = 0; | |
617 | h->dim0.ubnd = SCM_I_VECTOR_LENGTH (v) - 1; | |
618 | h->dim0.inc = 1; | |
619 | h->element_type = SCM_ARRAY_ELEMENT_TYPE_SCM; | |
620 | h->elements = h->writable_elements = SCM_I_VECTOR_WELTS (v); | |
88797580 MV |
621 | } |
622 | ||
c5f17102 AW |
623 | /* the & ~2 allows catching scm_tc7_wvect as well. needs changing if you change |
624 | tags.h. */ | |
2a610be5 AW |
625 | SCM_ARRAY_IMPLEMENTATION (scm_tc7_vector, 0x7f & ~2, |
626 | vector_handle_ref, vector_handle_set, | |
f65e0168 | 627 | vector_get_handle) |
f65e0168 | 628 | SCM_VECTOR_IMPLEMENTATION (SCM_ARRAY_ELEMENT_TYPE_SCM, scm_make_vector) |
88797580 | 629 | |
1cc91f1b | 630 | |
0f2d19dd JB |
631 | void |
632 | scm_init_vectors () | |
0f2d19dd | 633 | { |
a0599745 | 634 | #include "libguile/vectors.x" |
0f2d19dd JB |
635 | } |
636 | ||
89e00824 ML |
637 | |
638 | /* | |
639 | Local Variables: | |
640 | c-file-style: "gnu" | |
641 | End: | |
642 | */ |