Commit | Line | Data |
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6922d92f LC |
1 | /* Copyright (C) 1995,1996,1998,1999,2000,2001, 2006, 2008, 2009, 2010, |
2 | * 2011, 2012 Free Software Foundation, Inc. | |
3 | * | |
73be1d9e | 4 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
5 | * modify it under the terms of the GNU Lesser General Public License |
6 | * as published by the Free Software Foundation; either version 3 of | |
7 | * the License, or (at your option) any later version. | |
0f2d19dd | 8 | * |
53befeb7 NJ |
9 | * This library is distributed in the hope that it will be useful, but |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Lesser General Public License for more details. | |
0f2d19dd | 13 | * |
73be1d9e MV |
14 | * You should have received a copy of the GNU Lesser General Public |
15 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
17 | * 02110-1301 USA | |
73be1d9e | 18 | */ |
1bbd0b84 | 19 | |
1bbd0b84 | 20 | |
0f2d19dd | 21 | \f |
dbb605f5 LC |
22 | #ifdef HAVE_CONFIG_H |
23 | # include <config.h> | |
24 | #endif | |
0f2d19dd | 25 | |
a0599745 MD |
26 | #include "libguile/_scm.h" |
27 | #include "libguile/eq.h" | |
28 | #include "libguile/root.h" | |
29 | #include "libguile/strings.h" | |
30 | ||
31 | #include "libguile/validate.h" | |
32 | #include "libguile/vectors.h" | |
5c39373f | 33 | #include "libguile/arrays.h" /* Hit me with the ugly stick */ |
f332e957 | 34 | #include "libguile/generalized-vectors.h" |
88797580 MV |
35 | #include "libguile/strings.h" |
36 | #include "libguile/srfi-13.h" | |
1d0df896 | 37 | #include "libguile/dynwind.h" |
6e708ef2 | 38 | #include "libguile/deprecation.h" |
88797580 | 39 | |
1c44468d | 40 | #include "libguile/bdw-gc.h" |
3a2de079 LC |
41 | |
42 | ||
0f2d19dd JB |
43 | \f |
44 | ||
6e708ef2 MV |
45 | #define VECTOR_MAX_LENGTH (SCM_T_BITS_MAX >> 8) |
46 | ||
6e708ef2 MV |
47 | int |
48 | scm_is_vector (SCM obj) | |
49 | { | |
50 | if (SCM_I_IS_VECTOR (obj)) | |
51 | return 1; | |
04b87de5 | 52 | if (SCM_I_ARRAYP (obj) && SCM_I_ARRAY_NDIM (obj) == 1) |
6e708ef2 | 53 | { |
04b87de5 | 54 | SCM v = SCM_I_ARRAY_V (obj); |
6e708ef2 MV |
55 | return SCM_I_IS_VECTOR (v); |
56 | } | |
57 | return 0; | |
58 | } | |
59 | ||
60 | int | |
61 | scm_is_simple_vector (SCM obj) | |
1d0df896 | 62 | { |
6e708ef2 | 63 | return SCM_I_IS_VECTOR (obj); |
1d0df896 MV |
64 | } |
65 | ||
354116f7 MV |
66 | const SCM * |
67 | scm_vector_elements (SCM vec, scm_t_array_handle *h, | |
68 | size_t *lenp, ssize_t *incp) | |
69 | { | |
3a2de079 LC |
70 | if (SCM_I_WVECTP (vec)) |
71 | /* FIXME: We should check each (weak) element of the vector for NULL and | |
72 | convert it to SCM_BOOL_F. */ | |
73 | abort (); | |
74 | ||
354116f7 MV |
75 | scm_generalized_vector_get_handle (vec, h); |
76 | if (lenp) | |
77 | { | |
78 | scm_t_array_dim *dim = scm_array_handle_dims (h); | |
79 | *lenp = dim->ubnd - dim->lbnd + 1; | |
80 | *incp = dim->inc; | |
81 | } | |
82 | return scm_array_handle_elements (h); | |
83 | } | |
84 | ||
85 | SCM * | |
86 | scm_vector_writable_elements (SCM vec, scm_t_array_handle *h, | |
87 | size_t *lenp, ssize_t *incp) | |
88 | { | |
3a2de079 LC |
89 | if (SCM_I_WVECTP (vec)) |
90 | /* FIXME: We should check each (weak) element of the vector for NULL and | |
91 | convert it to SCM_BOOL_F. */ | |
92 | abort (); | |
93 | ||
354116f7 MV |
94 | scm_generalized_vector_get_handle (vec, h); |
95 | if (lenp) | |
96 | { | |
97 | scm_t_array_dim *dim = scm_array_handle_dims (h); | |
98 | *lenp = dim->ubnd - dim->lbnd + 1; | |
99 | *incp = dim->inc; | |
100 | } | |
101 | return scm_array_handle_writable_elements (h); | |
102 | } | |
103 | ||
a1ec6916 | 104 | SCM_DEFINE (scm_vector_p, "vector?", 1, 0, 0, |
5ffe9968 | 105 | (SCM obj), |
1e6808ea MG |
106 | "Return @code{#t} if @var{obj} is a vector, otherwise return\n" |
107 | "@code{#f}.") | |
1bbd0b84 | 108 | #define FUNC_NAME s_scm_vector_p |
0f2d19dd | 109 | { |
de5c0f58 | 110 | return scm_from_bool (scm_is_vector (obj)); |
0f2d19dd | 111 | } |
1bbd0b84 | 112 | #undef FUNC_NAME |
0f2d19dd | 113 | |
f172c0b7 | 114 | SCM_GPROC (s_vector_length, "vector-length", 1, 0, 0, scm_vector_length, g_vector_length); |
1e6808ea | 115 | /* Returns the number of elements in @var{vector} as an exact integer. */ |
0f2d19dd | 116 | SCM |
f172c0b7 | 117 | scm_vector_length (SCM v) |
0f2d19dd | 118 | { |
6e708ef2 MV |
119 | if (SCM_I_IS_VECTOR (v)) |
120 | return scm_from_size_t (SCM_I_VECTOR_LENGTH (v)); | |
04b87de5 | 121 | else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1) |
de5c0f58 | 122 | { |
04b87de5 | 123 | scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v); |
de5c0f58 MV |
124 | return scm_from_size_t (dim->ubnd - dim->lbnd + 1); |
125 | } | |
126 | else | |
127 | SCM_WTA_DISPATCH_1 (g_vector_length, v, 1, NULL); | |
0f2d19dd JB |
128 | } |
129 | ||
88797580 MV |
130 | size_t |
131 | scm_c_vector_length (SCM v) | |
132 | { | |
6e708ef2 MV |
133 | if (SCM_I_IS_VECTOR (v)) |
134 | return SCM_I_VECTOR_LENGTH (v); | |
88797580 | 135 | else |
de5c0f58 | 136 | return scm_to_size_t (scm_vector_length (v)); |
88797580 MV |
137 | } |
138 | ||
f172c0b7 | 139 | SCM_REGISTER_PROC (s_list_to_vector, "list->vector", 1, 0, 0, scm_vector); |
5ffe9968 | 140 | /* |
942e5b91 MG |
141 | "Return a newly created vector initialized to the elements of" |
142 | "the list @var{list}.\n\n" | |
143 | "@lisp\n" | |
144 | "(vector->list '#(dah dah didah)) @result{} (dah dah didah)\n" | |
145 | "(list->vector '(dididit dah)) @result{} #(dididit dah)\n" | |
146 | "@end lisp") | |
5ffe9968 | 147 | */ |
a1ec6916 | 148 | SCM_DEFINE (scm_vector, "vector", 0, 0, 1, |
f172c0b7 | 149 | (SCM l), |
8f85c0c6 NJ |
150 | "@deffnx {Scheme Procedure} list->vector l\n" |
151 | "Return a newly allocated vector composed of the\n" | |
1e6808ea MG |
152 | "given arguments. Analogous to @code{list}.\n" |
153 | "\n" | |
942e5b91 | 154 | "@lisp\n" |
1e6808ea | 155 | "(vector 'a 'b 'c) @result{} #(a b c)\n" |
942e5b91 | 156 | "@end lisp") |
1bbd0b84 | 157 | #define FUNC_NAME s_scm_vector |
0f2d19dd JB |
158 | { |
159 | SCM res; | |
22a52da1 | 160 | SCM *data; |
1d0df896 | 161 | long i, len; |
6e708ef2 | 162 | scm_t_array_handle handle; |
22a52da1 | 163 | |
1d0df896 | 164 | SCM_VALIDATE_LIST_COPYLEN (1, l, len); |
34d19ef6 | 165 | |
6e708ef2 MV |
166 | res = scm_c_make_vector (len, SCM_UNSPECIFIED); |
167 | data = scm_vector_writable_elements (res, &handle, NULL, NULL); | |
1d0df896 | 168 | i = 0; |
c8857a4d | 169 | while (scm_is_pair (l) && i < len) |
22a52da1 | 170 | { |
1d0df896 | 171 | data[i] = SCM_CAR (l); |
22a52da1 | 172 | l = SCM_CDR (l); |
6e708ef2 | 173 | i += 1; |
22a52da1 DH |
174 | } |
175 | ||
c8857a4d MV |
176 | scm_array_handle_release (&handle); |
177 | ||
0f2d19dd JB |
178 | return res; |
179 | } | |
1bbd0b84 | 180 | #undef FUNC_NAME |
0f2d19dd | 181 | |
f172c0b7 | 182 | SCM_GPROC (s_vector_ref, "vector-ref", 2, 0, 0, scm_vector_ref, g_vector_ref); |
1cc91f1b | 183 | |
5ffe9968 GB |
184 | /* |
185 | "@var{k} must be a valid index of @var{vector}.\n" | |
186 | "@samp{Vector-ref} returns the contents of element @var{k} of\n" | |
187 | "@var{vector}.\n\n" | |
942e5b91 MG |
188 | "@lisp\n" |
189 | "(vector-ref '#(1 1 2 3 5 8 13 21) 5) @result{} 8\n" | |
5ffe9968 GB |
190 | "(vector-ref '#(1 1 2 3 5 8 13 21)\n" |
191 | " (let ((i (round (* 2 (acos -1)))))\n" | |
192 | " (if (inexact? i)\n" | |
193 | " (inexact->exact i)\n" | |
942e5b91 MG |
194 | " i))) @result{} 13\n" |
195 | "@end lisp" | |
5ffe9968 GB |
196 | */ |
197 | ||
0f2d19dd | 198 | SCM |
ea633082 | 199 | scm_vector_ref (SCM v, SCM k) |
685c0d71 | 200 | #define FUNC_NAME s_vector_ref |
0f2d19dd | 201 | { |
de5c0f58 | 202 | return scm_c_vector_ref (v, scm_to_size_t (k)); |
0f2d19dd | 203 | } |
685c0d71 | 204 | #undef FUNC_NAME |
0f2d19dd | 205 | |
88797580 MV |
206 | SCM |
207 | scm_c_vector_ref (SCM v, size_t k) | |
208 | { | |
6e708ef2 | 209 | if (SCM_I_IS_VECTOR (v)) |
de5c0f58 | 210 | { |
3a2de079 LC |
211 | register SCM elt; |
212 | ||
6e708ef2 | 213 | if (k >= SCM_I_VECTOR_LENGTH (v)) |
3a2de079 LC |
214 | scm_out_of_range (NULL, scm_from_size_t (k)); |
215 | elt = (SCM_I_VECTOR_ELTS(v))[k]; | |
216 | ||
b2b33168 | 217 | if (SCM_UNPACK (elt) == 0 && SCM_I_WVECTP (v)) |
3a2de079 LC |
218 | /* ELT was a weak pointer and got nullified by the GC. */ |
219 | return SCM_BOOL_F; | |
220 | ||
221 | return elt; | |
de5c0f58 | 222 | } |
04b87de5 | 223 | else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1) |
88797580 | 224 | { |
04b87de5 MV |
225 | scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v); |
226 | SCM vv = SCM_I_ARRAY_V (v); | |
6e708ef2 MV |
227 | if (SCM_I_IS_VECTOR (vv)) |
228 | { | |
3a2de079 LC |
229 | register SCM elt; |
230 | ||
6e708ef2 MV |
231 | if (k >= dim->ubnd - dim->lbnd + 1) |
232 | scm_out_of_range (NULL, scm_from_size_t (k)); | |
04b87de5 | 233 | k = SCM_I_ARRAY_BASE (v) + k*dim->inc; |
3a2de079 LC |
234 | elt = (SCM_I_VECTOR_ELTS (vv))[k]; |
235 | ||
b2b33168 | 236 | if (SCM_UNPACK (elt) == 0 && (SCM_I_WVECTP (vv))) |
3a2de079 LC |
237 | /* ELT was a weak pointer and got nullified by the GC. */ |
238 | return SCM_BOOL_F; | |
239 | ||
240 | return elt; | |
6e708ef2 MV |
241 | } |
242 | scm_wrong_type_arg_msg (NULL, 0, v, "non-uniform vector"); | |
88797580 | 243 | } |
de5c0f58 MV |
244 | else |
245 | SCM_WTA_DISPATCH_2 (g_vector_ref, v, scm_from_size_t (k), 2, NULL); | |
88797580 MV |
246 | } |
247 | ||
f172c0b7 | 248 | SCM_GPROC (s_vector_set_x, "vector-set!", 3, 0, 0, scm_vector_set_x, g_vector_set_x); |
1cc91f1b | 249 | |
942e5b91 MG |
250 | /* "@var{k} must be a valid index of @var{vector}.\n" |
251 | "@code{Vector-set!} stores @var{obj} in element @var{k} of @var{vector}.\n" | |
252 | "The value returned by @samp{vector-set!} is unspecified.\n" | |
253 | "@lisp\n" | |
254 | "(let ((vec (vector 0 '(2 2 2 2) "Anna")))\n" | |
255 | " (vector-set! vec 1 '("Sue" "Sue"))\n" | |
256 | " vec) @result{} #(0 ("Sue" "Sue") "Anna")\n" | |
257 | "(vector-set! '#(0 1 2) 1 "doe") @result{} @emph{error} ; constant vector\n" | |
258 | "@end lisp" | |
5ffe9968 GB |
259 | */ |
260 | ||
0f2d19dd | 261 | SCM |
f172c0b7 | 262 | scm_vector_set_x (SCM v, SCM k, SCM obj) |
685c0d71 | 263 | #define FUNC_NAME s_vector_set_x |
0f2d19dd | 264 | { |
de5c0f58 | 265 | scm_c_vector_set_x (v, scm_to_size_t (k), obj); |
60c497a3 | 266 | return SCM_UNSPECIFIED; |
0f2d19dd | 267 | } |
685c0d71 | 268 | #undef FUNC_NAME |
0f2d19dd | 269 | |
de5c0f58 | 270 | void |
88797580 MV |
271 | scm_c_vector_set_x (SCM v, size_t k, SCM obj) |
272 | { | |
6e708ef2 | 273 | if (SCM_I_IS_VECTOR (v)) |
88797580 | 274 | { |
6e708ef2 | 275 | if (k >= SCM_I_VECTOR_LENGTH (v)) |
de5c0f58 | 276 | scm_out_of_range (NULL, scm_from_size_t (k)); |
6e708ef2 | 277 | (SCM_I_VECTOR_WELTS(v))[k] = obj; |
3a2de079 LC |
278 | if (SCM_I_WVECTP (v)) |
279 | { | |
280 | /* Make it a weak pointer. */ | |
6922d92f LC |
281 | SCM *link = & SCM_I_VECTOR_WELTS (v)[k]; |
282 | SCM_I_REGISTER_DISAPPEARING_LINK ((void **) link, SCM2PTR (obj)); | |
3a2de079 | 283 | } |
de5c0f58 | 284 | } |
04b87de5 | 285 | else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1) |
de5c0f58 | 286 | { |
04b87de5 MV |
287 | scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v); |
288 | SCM vv = SCM_I_ARRAY_V (v); | |
6e708ef2 MV |
289 | if (SCM_I_IS_VECTOR (vv)) |
290 | { | |
291 | if (k >= dim->ubnd - dim->lbnd + 1) | |
292 | scm_out_of_range (NULL, scm_from_size_t (k)); | |
04b87de5 | 293 | k = SCM_I_ARRAY_BASE (v) + k*dim->inc; |
6e708ef2 | 294 | (SCM_I_VECTOR_WELTS (vv))[k] = obj; |
3a2de079 LC |
295 | |
296 | if (SCM_I_WVECTP (vv)) | |
297 | { | |
298 | /* Make it a weak pointer. */ | |
6922d92f LC |
299 | SCM *link = & SCM_I_VECTOR_WELTS (vv)[k]; |
300 | SCM_I_REGISTER_DISAPPEARING_LINK ((void **) link, SCM2PTR (obj)); | |
3a2de079 | 301 | } |
6e708ef2 MV |
302 | } |
303 | else | |
304 | scm_wrong_type_arg_msg (NULL, 0, v, "non-uniform vector"); | |
88797580 MV |
305 | } |
306 | else | |
307 | { | |
de5c0f58 MV |
308 | if (SCM_UNPACK (g_vector_set_x)) |
309 | scm_apply_generic (g_vector_set_x, | |
310 | scm_list_3 (v, scm_from_size_t (k), obj)); | |
311 | else | |
312 | scm_wrong_type_arg_msg (NULL, 0, v, "vector"); | |
88797580 MV |
313 | } |
314 | } | |
0f2d19dd | 315 | |
a1ec6916 | 316 | SCM_DEFINE (scm_make_vector, "make-vector", 1, 1, 0, |
1bbd0b84 | 317 | (SCM k, SCM fill), |
1e6808ea | 318 | "Return a newly allocated vector of @var{k} elements. If a\n" |
8f85c0c6 NJ |
319 | "second argument is given, then each position is initialized to\n" |
320 | "@var{fill}. Otherwise the initial contents of each position is\n" | |
1e6808ea | 321 | "unspecified.") |
1bbd0b84 | 322 | #define FUNC_NAME s_scm_make_vector |
0f2d19dd | 323 | { |
6e708ef2 | 324 | size_t l = scm_to_unsigned_integer (k, 0, VECTOR_MAX_LENGTH); |
e11e83f3 | 325 | |
1b9be268 | 326 | if (SCM_UNBNDP (fill)) |
d60cebe2 | 327 | fill = SCM_UNSPECIFIED; |
e11e83f3 MV |
328 | |
329 | return scm_c_make_vector (l, fill); | |
00ffa0e7 KN |
330 | } |
331 | #undef FUNC_NAME | |
332 | ||
e382fdbe | 333 | |
00ffa0e7 | 334 | SCM |
88797580 | 335 | scm_c_make_vector (size_t k, SCM fill) |
00ffa0e7 KN |
336 | #define FUNC_NAME s_scm_make_vector |
337 | { | |
ed7e0765 | 338 | SCM *vector; |
1b9be268 | 339 | |
ed7e0765 LC |
340 | vector = (SCM *) |
341 | scm_gc_malloc ((k + SCM_I_VECTOR_HEADER_SIZE) * sizeof (SCM), | |
342 | "vector"); | |
343 | ||
344 | if (k > 0) | |
e382fdbe | 345 | { |
ed7e0765 | 346 | SCM *base; |
c014a02e | 347 | unsigned long int j; |
1b9be268 | 348 | |
6e708ef2 | 349 | SCM_ASSERT_RANGE (1, scm_from_ulong (k), k <= VECTOR_MAX_LENGTH); |
1b9be268 | 350 | |
ed7e0765 | 351 | base = vector + SCM_I_VECTOR_HEADER_SIZE; |
e382fdbe | 352 | for (j = 0; j != k; ++j) |
6e708ef2 | 353 | base[j] = fill; |
e382fdbe | 354 | } |
1b9be268 | 355 | |
ed7e0765 LC |
356 | ((scm_t_bits *) vector)[0] = (k << 8) | scm_tc7_vector; |
357 | ((scm_t_bits *) vector)[1] = 0; | |
1b9be268 | 358 | |
ed7e0765 | 359 | return PTR2SCM (vector); |
0f2d19dd | 360 | } |
1bbd0b84 | 361 | #undef FUNC_NAME |
0f2d19dd | 362 | |
6e708ef2 MV |
363 | SCM_DEFINE (scm_vector_copy, "vector-copy", 1, 0, 0, |
364 | (SCM vec), | |
365 | "Return a copy of @var{vec}.") | |
366 | #define FUNC_NAME s_scm_vector_copy | |
367 | { | |
368 | scm_t_array_handle handle; | |
369 | size_t i, len; | |
370 | ssize_t inc; | |
371 | const SCM *src; | |
ed7e0765 | 372 | SCM result, *dst; |
6e708ef2 MV |
373 | |
374 | src = scm_vector_elements (vec, &handle, &len, &inc); | |
ed7e0765 LC |
375 | |
376 | result = scm_c_make_vector (len, SCM_UNDEFINED); | |
377 | dst = SCM_I_VECTOR_WELTS (result); | |
6e708ef2 MV |
378 | for (i = 0; i < len; i++, src += inc) |
379 | dst[i] = *src; | |
ed7e0765 | 380 | |
c8857a4d | 381 | scm_array_handle_release (&handle); |
6e708ef2 | 382 | |
ed7e0765 | 383 | return result; |
6e708ef2 MV |
384 | } |
385 | #undef FUNC_NAME | |
386 | ||
d525e4f9 LC |
387 | \f |
388 | /* Weak vectors. */ | |
389 | ||
d525e4f9 LC |
390 | /* Allocate memory for the elements of a weak vector on behalf of the |
391 | caller. */ | |
ed7e0765 LC |
392 | static SCM |
393 | make_weak_vector (scm_t_bits type, size_t c_size) | |
6e708ef2 | 394 | { |
ed7e0765 LC |
395 | SCM *vector; |
396 | size_t total_size; | |
d525e4f9 | 397 | |
ed7e0765 LC |
398 | total_size = (c_size + SCM_I_VECTOR_HEADER_SIZE) * sizeof (SCM); |
399 | vector = (SCM *) scm_gc_malloc_pointerless (total_size, "weak vector"); | |
d525e4f9 | 400 | |
ed7e0765 LC |
401 | ((scm_t_bits *) vector)[0] = (c_size << 8) | scm_tc7_wvect; |
402 | ((scm_t_bits *) vector)[1] = type; | |
403 | ||
404 | return PTR2SCM (vector); | |
d525e4f9 LC |
405 | } |
406 | ||
407 | /* Return a new weak vector. The allocated vector will be of the given weak | |
408 | vector subtype. It will contain SIZE elements which are initialized with | |
409 | the FILL object, or, if FILL is undefined, with an unspecified object. */ | |
410 | SCM | |
411 | scm_i_make_weak_vector (scm_t_bits type, SCM size, SCM fill) | |
412 | { | |
413 | SCM wv, *base; | |
414 | size_t c_size, j; | |
415 | ||
416 | if (SCM_UNBNDP (fill)) | |
417 | fill = SCM_UNSPECIFIED; | |
6e708ef2 MV |
418 | |
419 | c_size = scm_to_unsigned_integer (size, 0, VECTOR_MAX_LENGTH); | |
ed7e0765 LC |
420 | wv = make_weak_vector (type, c_size); |
421 | base = SCM_I_WVECT_GC_WVELTS (wv); | |
6e708ef2 | 422 | |
d525e4f9 LC |
423 | for (j = 0; j != c_size; ++j) |
424 | base[j] = fill; | |
3a2de079 | 425 | |
d525e4f9 LC |
426 | return wv; |
427 | } | |
428 | ||
429 | /* Return a new weak vector with type TYPE and whose content are taken from | |
430 | list LST. */ | |
431 | SCM | |
432 | scm_i_make_weak_vector_from_list (scm_t_bits type, SCM lst) | |
433 | { | |
ed7e0765 | 434 | SCM wv, *elt; |
d525e4f9 LC |
435 | long c_size; |
436 | ||
437 | c_size = scm_ilength (lst); | |
438 | SCM_ASSERT (c_size >= 0, lst, SCM_ARG2, "scm_i_make_weak_vector_from_list"); | |
439 | ||
ed7e0765 LC |
440 | wv = make_weak_vector(type, (size_t) c_size); |
441 | ||
442 | for (elt = SCM_I_WVECT_GC_WVELTS (wv); | |
d525e4f9 LC |
443 | scm_is_pair (lst); |
444 | lst = SCM_CDR (lst), elt++) | |
445 | { | |
446 | *elt = SCM_CAR (lst); | |
6e708ef2 | 447 | } |
6e708ef2 | 448 | |
d525e4f9 | 449 | return wv; |
6e708ef2 | 450 | } |
e382fdbe | 451 | |
d525e4f9 LC |
452 | |
453 | \f | |
3b3b36dd | 454 | SCM_DEFINE (scm_vector_to_list, "vector->list", 1, 0, 0, |
1e6808ea | 455 | (SCM v), |
8f85c0c6 | 456 | "Return a newly allocated list composed of the elements of @var{v}.\n" |
1e6808ea | 457 | "\n" |
942e5b91 MG |
458 | "@lisp\n" |
459 | "(vector->list '#(dah dah didah)) @result{} (dah dah didah)\n" | |
460 | "(list->vector '(dididit dah)) @result{} #(dididit dah)\n" | |
461 | "@end lisp") | |
1bbd0b84 | 462 | #define FUNC_NAME s_scm_vector_to_list |
0f2d19dd | 463 | { |
6e708ef2 MV |
464 | SCM res = SCM_EOL; |
465 | const SCM *data; | |
466 | scm_t_array_handle handle; | |
22be72d3 | 467 | size_t i, count, len; |
6e708ef2 MV |
468 | ssize_t inc; |
469 | ||
470 | data = scm_vector_elements (v, &handle, &len, &inc); | |
22be72d3 LC |
471 | for (i = (len - 1) * inc, count = 0; |
472 | count < len; | |
473 | i -= inc, count++) | |
474 | res = scm_cons (data[i], res); | |
475 | ||
c8857a4d | 476 | scm_array_handle_release (&handle); |
6e708ef2 | 477 | return res; |
0f2d19dd | 478 | } |
1bbd0b84 | 479 | #undef FUNC_NAME |
0f2d19dd JB |
480 | |
481 | ||
a1ec6916 | 482 | SCM_DEFINE (scm_vector_fill_x, "vector-fill!", 2, 0, 0, |
1e6808ea | 483 | (SCM v, SCM fill), |
8f85c0c6 | 484 | "Store @var{fill} in every position of @var{vector}. The value\n" |
1e6808ea | 485 | "returned by @code{vector-fill!} is unspecified.") |
1bbd0b84 | 486 | #define FUNC_NAME s_scm_vector_fill_x |
0f2d19dd | 487 | { |
6e708ef2 MV |
488 | scm_t_array_handle handle; |
489 | SCM *data; | |
490 | size_t i, len; | |
491 | ssize_t inc; | |
492 | ||
493 | data = scm_vector_writable_elements (v, &handle, &len, &inc); | |
494 | for (i = 0; i < len; i += inc) | |
495 | data[i] = fill; | |
c8857a4d | 496 | scm_array_handle_release (&handle); |
6e708ef2 | 497 | return SCM_UNSPECIFIED; |
0f2d19dd | 498 | } |
1bbd0b84 | 499 | #undef FUNC_NAME |
0f2d19dd JB |
500 | |
501 | ||
0f2d19dd | 502 | SCM |
354116f7 | 503 | scm_i_vector_equal_p (SCM x, SCM y) |
0f2d19dd | 504 | { |
c014a02e | 505 | long i; |
6e708ef2 MV |
506 | for (i = SCM_I_VECTOR_LENGTH (x) - 1; i >= 0; i--) |
507 | if (scm_is_false (scm_equal_p (SCM_I_VECTOR_ELTS (x)[i], | |
508 | SCM_I_VECTOR_ELTS (y)[i]))) | |
0f2d19dd JB |
509 | return SCM_BOOL_F; |
510 | return SCM_BOOL_T; | |
511 | } | |
512 | ||
513 | ||
a1ec6916 | 514 | SCM_DEFINE (scm_vector_move_left_x, "vector-move-left!", 5, 0, 0, |
1bbd0b84 | 515 | (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2), |
694a9bb3 NJ |
516 | "Copy elements from @var{vec1}, positions @var{start1} to @var{end1},\n" |
517 | "to @var{vec2} starting at position @var{start2}. @var{start1} and\n" | |
518 | "@var{start2} are inclusive indices; @var{end1} is exclusive.\n\n" | |
519 | "@code{vector-move-left!} copies elements in leftmost order.\n" | |
520 | "Therefore, in the case where @var{vec1} and @var{vec2} refer to the\n" | |
521 | "same vector, @code{vector-move-left!} is usually appropriate when\n" | |
522 | "@var{start1} is greater than @var{start2}.") | |
1bbd0b84 | 523 | #define FUNC_NAME s_scm_vector_move_left_x |
0f2d19dd | 524 | { |
6e708ef2 MV |
525 | scm_t_array_handle handle1, handle2; |
526 | const SCM *elts1; | |
527 | SCM *elts2; | |
de5c0f58 | 528 | size_t len1, len2; |
6e708ef2 | 529 | ssize_t inc1, inc2; |
a55c2b68 | 530 | size_t i, j, e; |
6e708ef2 MV |
531 | |
532 | elts1 = scm_vector_elements (vec1, &handle1, &len1, &inc1); | |
533 | elts2 = scm_vector_writable_elements (vec2, &handle2, &len2, &inc2); | |
34d19ef6 | 534 | |
de5c0f58 MV |
535 | i = scm_to_unsigned_integer (start1, 0, len1); |
536 | e = scm_to_unsigned_integer (end1, i, len1); | |
ca659673 | 537 | SCM_ASSERT_RANGE (SCM_ARG3, end1, (e-i) <= len2); |
551b96d2 AW |
538 | j = scm_to_unsigned_integer (start2, 0, len2); |
539 | SCM_ASSERT_RANGE (SCM_ARG5, start2, j <= len2 - (e - i)); | |
de5c0f58 | 540 | |
6e708ef2 MV |
541 | i *= inc1; |
542 | e *= inc1; | |
543 | j *= inc2; | |
544 | for (; i < e; i += inc1, j += inc2) | |
545 | elts2[j] = elts1[i]; | |
546 | ||
c8857a4d MV |
547 | scm_array_handle_release (&handle2); |
548 | scm_array_handle_release (&handle1); | |
549 | ||
0f2d19dd JB |
550 | return SCM_UNSPECIFIED; |
551 | } | |
1bbd0b84 | 552 | #undef FUNC_NAME |
0f2d19dd | 553 | |
a1ec6916 | 554 | SCM_DEFINE (scm_vector_move_right_x, "vector-move-right!", 5, 0, 0, |
1bbd0b84 | 555 | (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2), |
694a9bb3 NJ |
556 | "Copy elements from @var{vec1}, positions @var{start1} to @var{end1},\n" |
557 | "to @var{vec2} starting at position @var{start2}. @var{start1} and\n" | |
558 | "@var{start2} are inclusive indices; @var{end1} is exclusive.\n\n" | |
559 | "@code{vector-move-right!} copies elements in rightmost order.\n" | |
560 | "Therefore, in the case where @var{vec1} and @var{vec2} refer to the\n" | |
561 | "same vector, @code{vector-move-right!} is usually appropriate when\n" | |
562 | "@var{start1} is less than @var{start2}.") | |
1bbd0b84 | 563 | #define FUNC_NAME s_scm_vector_move_right_x |
0f2d19dd | 564 | { |
6e708ef2 MV |
565 | scm_t_array_handle handle1, handle2; |
566 | const SCM *elts1; | |
567 | SCM *elts2; | |
de5c0f58 | 568 | size_t len1, len2; |
6e708ef2 | 569 | ssize_t inc1, inc2; |
a55c2b68 | 570 | size_t i, j, e; |
6e708ef2 MV |
571 | |
572 | elts1 = scm_vector_elements (vec1, &handle1, &len1, &inc1); | |
573 | elts2 = scm_vector_writable_elements (vec2, &handle2, &len2, &inc2); | |
0f2d19dd | 574 | |
de5c0f58 MV |
575 | i = scm_to_unsigned_integer (start1, 0, len1); |
576 | e = scm_to_unsigned_integer (end1, i, len1); | |
ca659673 | 577 | SCM_ASSERT_RANGE (SCM_ARG3, end1, (e-i) <= len2); |
551b96d2 AW |
578 | j = scm_to_unsigned_integer (start2, 0, len2); |
579 | SCM_ASSERT_RANGE (SCM_ARG5, start2, j <= len2 - (e - i)); | |
580 | ||
581 | j += (e - i); | |
de5c0f58 | 582 | |
6e708ef2 MV |
583 | i *= inc1; |
584 | e *= inc1; | |
585 | j *= inc2; | |
586 | while (i < e) | |
de5c0f58 | 587 | { |
6e708ef2 MV |
588 | e -= inc1; |
589 | j -= inc2; | |
590 | elts2[j] = elts1[e]; | |
de5c0f58 | 591 | } |
6e708ef2 | 592 | |
c8857a4d MV |
593 | scm_array_handle_release (&handle2); |
594 | scm_array_handle_release (&handle1); | |
595 | ||
0f2d19dd JB |
596 | return SCM_UNSPECIFIED; |
597 | } | |
1bbd0b84 | 598 | #undef FUNC_NAME |
0f2d19dd | 599 | |
438974d0 | 600 | \f |
2a610be5 AW |
601 | static SCM |
602 | vector_handle_ref (scm_t_array_handle *h, size_t idx) | |
88797580 | 603 | { |
2a610be5 AW |
604 | if (idx > h->dims[0].ubnd) |
605 | scm_out_of_range ("vector-handle-ref", scm_from_size_t (idx)); | |
606 | return ((SCM*)h->elements)[idx]; | |
88797580 MV |
607 | } |
608 | ||
2a610be5 AW |
609 | static void |
610 | vector_handle_set (scm_t_array_handle *h, size_t idx, SCM val) | |
88797580 | 611 | { |
2a610be5 AW |
612 | if (idx > h->dims[0].ubnd) |
613 | scm_out_of_range ("vector-handle-set!", scm_from_size_t (idx)); | |
614 | ((SCM*)h->writable_elements)[idx] = val; | |
88797580 | 615 | } |
88797580 | 616 | |
2a610be5 AW |
617 | static void |
618 | vector_get_handle (SCM v, scm_t_array_handle *h) | |
88797580 | 619 | { |
2a610be5 AW |
620 | h->array = v; |
621 | h->ndims = 1; | |
622 | h->dims = &h->dim0; | |
623 | h->dim0.lbnd = 0; | |
624 | h->dim0.ubnd = SCM_I_VECTOR_LENGTH (v) - 1; | |
625 | h->dim0.inc = 1; | |
626 | h->element_type = SCM_ARRAY_ELEMENT_TYPE_SCM; | |
627 | h->elements = h->writable_elements = SCM_I_VECTOR_WELTS (v); | |
88797580 MV |
628 | } |
629 | ||
c5f17102 AW |
630 | /* the & ~2 allows catching scm_tc7_wvect as well. needs changing if you change |
631 | tags.h. */ | |
2a610be5 AW |
632 | SCM_ARRAY_IMPLEMENTATION (scm_tc7_vector, 0x7f & ~2, |
633 | vector_handle_ref, vector_handle_set, | |
f65e0168 | 634 | vector_get_handle) |
f65e0168 | 635 | SCM_VECTOR_IMPLEMENTATION (SCM_ARRAY_ELEMENT_TYPE_SCM, scm_make_vector) |
88797580 | 636 | |
1cc91f1b | 637 | |
0f2d19dd JB |
638 | void |
639 | scm_init_vectors () | |
0f2d19dd | 640 | { |
a0599745 | 641 | #include "libguile/vectors.x" |
0f2d19dd JB |
642 | } |
643 | ||
89e00824 ML |
644 | |
645 | /* | |
646 | Local Variables: | |
647 | c-file-style: "gnu" | |
648 | End: | |
649 | */ |