Commit | Line | Data |
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6922d92f | 1 | /* Copyright (C) 1995,1996,1998,1999,2000,2001, 2006, 2008, 2009, 2010, |
9b5da400 | 2 | * 2011, 2012, 2014 Free Software Foundation, Inc. |
6922d92f | 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 | { | |
24cac655 | 50 | if (SCM_I_IS_NONWEAK_VECTOR (obj)) |
6e708ef2 | 51 | return 1; |
24cac655 AW |
52 | if (SCM_I_WVECTP (obj)) |
53 | { | |
54 | scm_c_issue_deprecation_warning | |
55 | ("Expecting vector? to be true for weak vectors is deprecated. " | |
56 | "Use weak-vector? instead."); | |
57 | return 1; | |
58 | } | |
59 | if (SCM_I_ARRAYP (obj) && SCM_I_ARRAY_NDIM (obj) == 1) | |
6e708ef2 | 60 | { |
04b87de5 | 61 | SCM v = SCM_I_ARRAY_V (obj); |
24cac655 AW |
62 | if (SCM_I_IS_VECTOR (v)) |
63 | { | |
64 | scm_c_issue_deprecation_warning | |
65 | ("Expecting vector? to be true for rank-1 arrays is deprecated. " | |
66 | "Use array?, array-rank, and array-type instead."); | |
67 | return 1; | |
68 | } | |
69 | return 0; | |
6e708ef2 MV |
70 | } |
71 | return 0; | |
72 | } | |
73 | ||
74 | int | |
75 | scm_is_simple_vector (SCM obj) | |
1d0df896 | 76 | { |
24cac655 AW |
77 | if (SCM_I_IS_NONWEAK_VECTOR (obj)) |
78 | return 1; | |
79 | if (SCM_I_WVECTP (obj)) | |
80 | { | |
81 | scm_c_issue_deprecation_warning | |
82 | ("Expecting scm_is_simple_vector to be true for weak vectors is " | |
83 | "deprecated. Use scm_is_weak_vector instead."); | |
84 | return 1; | |
85 | } | |
86 | return 0; | |
1d0df896 MV |
87 | } |
88 | ||
354116f7 MV |
89 | const SCM * |
90 | scm_vector_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_elements (h); | |
106 | } | |
107 | ||
108 | SCM * | |
109 | scm_vector_writable_elements (SCM vec, scm_t_array_handle *h, | |
110 | size_t *lenp, ssize_t *incp) | |
111 | { | |
3a2de079 LC |
112 | if (SCM_I_WVECTP (vec)) |
113 | /* FIXME: We should check each (weak) element of the vector for NULL and | |
114 | convert it to SCM_BOOL_F. */ | |
115 | abort (); | |
116 | ||
354116f7 MV |
117 | scm_generalized_vector_get_handle (vec, h); |
118 | if (lenp) | |
119 | { | |
120 | scm_t_array_dim *dim = scm_array_handle_dims (h); | |
121 | *lenp = dim->ubnd - dim->lbnd + 1; | |
122 | *incp = dim->inc; | |
123 | } | |
124 | return scm_array_handle_writable_elements (h); | |
125 | } | |
126 | ||
a1ec6916 | 127 | SCM_DEFINE (scm_vector_p, "vector?", 1, 0, 0, |
5ffe9968 | 128 | (SCM obj), |
1e6808ea MG |
129 | "Return @code{#t} if @var{obj} is a vector, otherwise return\n" |
130 | "@code{#f}.") | |
1bbd0b84 | 131 | #define FUNC_NAME s_scm_vector_p |
0f2d19dd | 132 | { |
de5c0f58 | 133 | return scm_from_bool (scm_is_vector (obj)); |
0f2d19dd | 134 | } |
1bbd0b84 | 135 | #undef FUNC_NAME |
0f2d19dd | 136 | |
f172c0b7 | 137 | SCM_GPROC (s_vector_length, "vector-length", 1, 0, 0, scm_vector_length, g_vector_length); |
1e6808ea | 138 | /* Returns the number of elements in @var{vector} as an exact integer. */ |
0f2d19dd | 139 | SCM |
f172c0b7 | 140 | scm_vector_length (SCM v) |
0f2d19dd | 141 | { |
6e708ef2 | 142 | if (SCM_I_IS_VECTOR (v)) |
9b5da400 AW |
143 | { |
144 | if (SCM_I_WVECTP (v)) | |
145 | scm_c_issue_deprecation_warning | |
146 | ("Using vector-length on weak vectors is deprecated. " | |
147 | "Use weak-vector-length from (ice-9 weak-vectors) instead."); | |
148 | return scm_from_size_t (SCM_I_VECTOR_LENGTH (v)); | |
149 | } | |
04b87de5 | 150 | else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1) |
de5c0f58 | 151 | { |
04b87de5 | 152 | scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v); |
24cac655 AW |
153 | scm_c_issue_deprecation_warning |
154 | ("Using vector-length on arrays is deprecated. " | |
155 | "Use array-length instead."); | |
de5c0f58 MV |
156 | return scm_from_size_t (dim->ubnd - dim->lbnd + 1); |
157 | } | |
5cfeff11 AW |
158 | else if (SCM_UNPACK (g_vector_length)) |
159 | { | |
160 | scm_c_issue_deprecation_warning | |
161 | ("Using vector-length as a primitive-generic is deprecated."); | |
162 | return scm_call_generic_1 (g_vector_length, v); | |
163 | } | |
de5c0f58 | 164 | else |
5cfeff11 AW |
165 | { |
166 | scm_wrong_type_arg_msg ("vector-length", 1, v, "vector"); | |
167 | return SCM_UNDEFINED; /* not reached */ | |
168 | } | |
0f2d19dd JB |
169 | } |
170 | ||
88797580 MV |
171 | size_t |
172 | scm_c_vector_length (SCM v) | |
173 | { | |
9b5da400 | 174 | if (SCM_I_IS_NONWEAK_VECTOR (v)) |
6e708ef2 | 175 | return SCM_I_VECTOR_LENGTH (v); |
88797580 | 176 | else |
de5c0f58 | 177 | return scm_to_size_t (scm_vector_length (v)); |
88797580 MV |
178 | } |
179 | ||
f172c0b7 | 180 | SCM_REGISTER_PROC (s_list_to_vector, "list->vector", 1, 0, 0, scm_vector); |
5ffe9968 | 181 | /* |
942e5b91 MG |
182 | "Return a newly created vector initialized to the elements of" |
183 | "the list @var{list}.\n\n" | |
184 | "@lisp\n" | |
185 | "(vector->list '#(dah dah didah)) @result{} (dah dah didah)\n" | |
186 | "(list->vector '(dididit dah)) @result{} #(dididit dah)\n" | |
187 | "@end lisp") | |
5ffe9968 | 188 | */ |
a1ec6916 | 189 | SCM_DEFINE (scm_vector, "vector", 0, 0, 1, |
f172c0b7 | 190 | (SCM l), |
8f85c0c6 NJ |
191 | "@deffnx {Scheme Procedure} list->vector l\n" |
192 | "Return a newly allocated vector composed of the\n" | |
1e6808ea MG |
193 | "given arguments. Analogous to @code{list}.\n" |
194 | "\n" | |
942e5b91 | 195 | "@lisp\n" |
1e6808ea | 196 | "(vector 'a 'b 'c) @result{} #(a b c)\n" |
942e5b91 | 197 | "@end lisp") |
1bbd0b84 | 198 | #define FUNC_NAME s_scm_vector |
0f2d19dd JB |
199 | { |
200 | SCM res; | |
22a52da1 | 201 | SCM *data; |
1d0df896 | 202 | long i, len; |
6e708ef2 | 203 | scm_t_array_handle handle; |
22a52da1 | 204 | |
1d0df896 | 205 | SCM_VALIDATE_LIST_COPYLEN (1, l, len); |
34d19ef6 | 206 | |
6e708ef2 MV |
207 | res = scm_c_make_vector (len, SCM_UNSPECIFIED); |
208 | data = scm_vector_writable_elements (res, &handle, NULL, NULL); | |
1d0df896 | 209 | i = 0; |
c8857a4d | 210 | while (scm_is_pair (l) && i < len) |
22a52da1 | 211 | { |
1d0df896 | 212 | data[i] = SCM_CAR (l); |
22a52da1 | 213 | l = SCM_CDR (l); |
6e708ef2 | 214 | i += 1; |
22a52da1 DH |
215 | } |
216 | ||
c8857a4d MV |
217 | scm_array_handle_release (&handle); |
218 | ||
0f2d19dd JB |
219 | return res; |
220 | } | |
1bbd0b84 | 221 | #undef FUNC_NAME |
0f2d19dd | 222 | |
f172c0b7 | 223 | SCM_GPROC (s_vector_ref, "vector-ref", 2, 0, 0, scm_vector_ref, g_vector_ref); |
1cc91f1b | 224 | |
5ffe9968 GB |
225 | /* |
226 | "@var{k} must be a valid index of @var{vector}.\n" | |
227 | "@samp{Vector-ref} returns the contents of element @var{k} of\n" | |
228 | "@var{vector}.\n\n" | |
942e5b91 MG |
229 | "@lisp\n" |
230 | "(vector-ref '#(1 1 2 3 5 8 13 21) 5) @result{} 8\n" | |
5ffe9968 GB |
231 | "(vector-ref '#(1 1 2 3 5 8 13 21)\n" |
232 | " (let ((i (round (* 2 (acos -1)))))\n" | |
233 | " (if (inexact? i)\n" | |
234 | " (inexact->exact i)\n" | |
942e5b91 MG |
235 | " i))) @result{} 13\n" |
236 | "@end lisp" | |
5ffe9968 GB |
237 | */ |
238 | ||
0f2d19dd | 239 | SCM |
ea633082 | 240 | scm_vector_ref (SCM v, SCM k) |
685c0d71 | 241 | #define FUNC_NAME s_vector_ref |
0f2d19dd | 242 | { |
de5c0f58 | 243 | return scm_c_vector_ref (v, scm_to_size_t (k)); |
0f2d19dd | 244 | } |
685c0d71 | 245 | #undef FUNC_NAME |
0f2d19dd | 246 | |
88797580 MV |
247 | SCM |
248 | scm_c_vector_ref (SCM v, size_t k) | |
249 | { | |
9b5da400 | 250 | if (SCM_I_IS_NONWEAK_VECTOR (v)) |
de5c0f58 | 251 | { |
3a2de079 LC |
252 | register SCM elt; |
253 | ||
6e708ef2 | 254 | if (k >= SCM_I_VECTOR_LENGTH (v)) |
3a2de079 LC |
255 | scm_out_of_range (NULL, scm_from_size_t (k)); |
256 | elt = (SCM_I_VECTOR_ELTS(v))[k]; | |
257 | ||
3a2de079 | 258 | return elt; |
de5c0f58 | 259 | } |
9b5da400 AW |
260 | else if (SCM_I_WVECTP (v)) |
261 | { | |
262 | scm_c_issue_deprecation_warning | |
263 | ("Using vector-ref on weak vectors is deprecated. " | |
264 | "Instead, use weak-vector-ref from (ice-9 weak-vectors)."); | |
265 | return scm_c_weak_vector_ref (v, k); | |
266 | } | |
04b87de5 | 267 | else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1) |
88797580 | 268 | { |
04b87de5 MV |
269 | scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v); |
270 | SCM vv = SCM_I_ARRAY_V (v); | |
6e708ef2 MV |
271 | if (SCM_I_IS_VECTOR (vv)) |
272 | { | |
3a2de079 LC |
273 | register SCM elt; |
274 | ||
24cac655 AW |
275 | scm_c_issue_deprecation_warning |
276 | ("Using vector-ref on arrays is deprecated. " | |
277 | "Use array-ref instead."); | |
278 | ||
6e708ef2 MV |
279 | if (k >= dim->ubnd - dim->lbnd + 1) |
280 | scm_out_of_range (NULL, scm_from_size_t (k)); | |
04b87de5 | 281 | k = SCM_I_ARRAY_BASE (v) + k*dim->inc; |
3a2de079 LC |
282 | elt = (SCM_I_VECTOR_ELTS (vv))[k]; |
283 | ||
b2b33168 | 284 | if (SCM_UNPACK (elt) == 0 && (SCM_I_WVECTP (vv))) |
9b5da400 AW |
285 | { |
286 | scm_c_issue_deprecation_warning | |
287 | ("Weak arrays are deprecated. Use weak vectors instead."); | |
288 | /* ELT was a weak pointer and got nullified by the GC. */ | |
289 | return SCM_BOOL_F; | |
290 | } | |
3a2de079 LC |
291 | |
292 | return elt; | |
6e708ef2 MV |
293 | } |
294 | scm_wrong_type_arg_msg (NULL, 0, v, "non-uniform vector"); | |
88797580 | 295 | } |
5cfeff11 AW |
296 | else if (SCM_UNPACK (g_vector_ref)) |
297 | { | |
298 | scm_c_issue_deprecation_warning | |
299 | ("Using vector-ref as a primitive-generic is deprecated."); | |
300 | return scm_call_generic_2 (g_vector_ref, v, scm_from_size_t (k)); | |
301 | } | |
de5c0f58 | 302 | else |
5cfeff11 AW |
303 | { |
304 | scm_wrong_type_arg_msg ("vector-ref", 1, v, "vector"); | |
305 | return SCM_UNDEFINED; /* not reached */ | |
306 | } | |
88797580 MV |
307 | } |
308 | ||
f172c0b7 | 309 | SCM_GPROC (s_vector_set_x, "vector-set!", 3, 0, 0, scm_vector_set_x, g_vector_set_x); |
1cc91f1b | 310 | |
942e5b91 MG |
311 | /* "@var{k} must be a valid index of @var{vector}.\n" |
312 | "@code{Vector-set!} stores @var{obj} in element @var{k} of @var{vector}.\n" | |
313 | "The value returned by @samp{vector-set!} is unspecified.\n" | |
314 | "@lisp\n" | |
315 | "(let ((vec (vector 0 '(2 2 2 2) "Anna")))\n" | |
316 | " (vector-set! vec 1 '("Sue" "Sue"))\n" | |
317 | " vec) @result{} #(0 ("Sue" "Sue") "Anna")\n" | |
318 | "(vector-set! '#(0 1 2) 1 "doe") @result{} @emph{error} ; constant vector\n" | |
319 | "@end lisp" | |
5ffe9968 GB |
320 | */ |
321 | ||
0f2d19dd | 322 | SCM |
f172c0b7 | 323 | scm_vector_set_x (SCM v, SCM k, SCM obj) |
685c0d71 | 324 | #define FUNC_NAME s_vector_set_x |
0f2d19dd | 325 | { |
de5c0f58 | 326 | scm_c_vector_set_x (v, scm_to_size_t (k), obj); |
60c497a3 | 327 | return SCM_UNSPECIFIED; |
0f2d19dd | 328 | } |
685c0d71 | 329 | #undef FUNC_NAME |
0f2d19dd | 330 | |
de5c0f58 | 331 | void |
88797580 MV |
332 | scm_c_vector_set_x (SCM v, size_t k, SCM obj) |
333 | { | |
9b5da400 | 334 | if (SCM_I_IS_NONWEAK_VECTOR (v)) |
88797580 | 335 | { |
6e708ef2 | 336 | if (k >= SCM_I_VECTOR_LENGTH (v)) |
de5c0f58 | 337 | scm_out_of_range (NULL, scm_from_size_t (k)); |
6e708ef2 | 338 | (SCM_I_VECTOR_WELTS(v))[k] = obj; |
9b5da400 AW |
339 | } |
340 | else if (SCM_I_WVECTP (v)) | |
341 | { | |
342 | scm_c_issue_deprecation_warning | |
343 | ("Using vector-set! on weak vectors is deprecated. " | |
344 | "Instead, use weak-vector-set! from (ice-9 weak-vectors)."); | |
345 | scm_c_weak_vector_set_x (v, k, obj); | |
de5c0f58 | 346 | } |
04b87de5 | 347 | else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1) |
de5c0f58 | 348 | { |
04b87de5 MV |
349 | scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v); |
350 | SCM vv = SCM_I_ARRAY_V (v); | |
6e708ef2 MV |
351 | if (SCM_I_IS_VECTOR (vv)) |
352 | { | |
24cac655 AW |
353 | scm_c_issue_deprecation_warning |
354 | ("Using vector-set! on arrays is deprecated. " | |
355 | "Use array-set! instead, but note the change in argument order."); | |
356 | ||
6e708ef2 MV |
357 | if (k >= dim->ubnd - dim->lbnd + 1) |
358 | scm_out_of_range (NULL, scm_from_size_t (k)); | |
04b87de5 | 359 | k = SCM_I_ARRAY_BASE (v) + k*dim->inc; |
6e708ef2 | 360 | (SCM_I_VECTOR_WELTS (vv))[k] = obj; |
3a2de079 LC |
361 | |
362 | if (SCM_I_WVECTP (vv)) | |
363 | { | |
364 | /* Make it a weak pointer. */ | |
6922d92f LC |
365 | SCM *link = & SCM_I_VECTOR_WELTS (vv)[k]; |
366 | SCM_I_REGISTER_DISAPPEARING_LINK ((void **) link, SCM2PTR (obj)); | |
9b5da400 AW |
367 | scm_c_issue_deprecation_warning |
368 | ("Weak arrays are deprecated. Use weak vectors instead."); | |
3a2de079 | 369 | } |
6e708ef2 MV |
370 | } |
371 | else | |
372 | scm_wrong_type_arg_msg (NULL, 0, v, "non-uniform vector"); | |
88797580 | 373 | } |
5cfeff11 AW |
374 | else if (SCM_UNPACK (g_vector_set_x)) |
375 | { | |
376 | scm_c_issue_deprecation_warning | |
377 | ("Using vector-set! as a primitive-generic is deprecated."); | |
24cac655 | 378 | scm_call_3 (g_vector_set_x, v, scm_from_size_t (k), obj); |
5cfeff11 | 379 | } |
88797580 | 380 | else |
24cac655 | 381 | scm_wrong_type_arg_msg ("vector-set!", 1, v, "vector"); |
88797580 | 382 | } |
0f2d19dd | 383 | |
a1ec6916 | 384 | SCM_DEFINE (scm_make_vector, "make-vector", 1, 1, 0, |
1bbd0b84 | 385 | (SCM k, SCM fill), |
1e6808ea | 386 | "Return a newly allocated vector of @var{k} elements. If a\n" |
8f85c0c6 NJ |
387 | "second argument is given, then each position is initialized to\n" |
388 | "@var{fill}. Otherwise the initial contents of each position is\n" | |
1e6808ea | 389 | "unspecified.") |
1bbd0b84 | 390 | #define FUNC_NAME s_scm_make_vector |
0f2d19dd | 391 | { |
6e708ef2 | 392 | size_t l = scm_to_unsigned_integer (k, 0, VECTOR_MAX_LENGTH); |
e11e83f3 | 393 | |
1b9be268 | 394 | if (SCM_UNBNDP (fill)) |
d60cebe2 | 395 | fill = SCM_UNSPECIFIED; |
e11e83f3 MV |
396 | |
397 | return scm_c_make_vector (l, fill); | |
00ffa0e7 KN |
398 | } |
399 | #undef FUNC_NAME | |
400 | ||
e382fdbe | 401 | |
00ffa0e7 | 402 | SCM |
88797580 | 403 | scm_c_make_vector (size_t k, SCM fill) |
00ffa0e7 KN |
404 | #define FUNC_NAME s_scm_make_vector |
405 | { | |
ed7e0765 | 406 | SCM *vector; |
1b9be268 | 407 | |
ed7e0765 LC |
408 | vector = (SCM *) |
409 | scm_gc_malloc ((k + SCM_I_VECTOR_HEADER_SIZE) * sizeof (SCM), | |
410 | "vector"); | |
411 | ||
412 | if (k > 0) | |
e382fdbe | 413 | { |
ed7e0765 | 414 | SCM *base; |
c014a02e | 415 | unsigned long int j; |
1b9be268 | 416 | |
6e708ef2 | 417 | SCM_ASSERT_RANGE (1, scm_from_ulong (k), k <= VECTOR_MAX_LENGTH); |
1b9be268 | 418 | |
ed7e0765 | 419 | base = vector + SCM_I_VECTOR_HEADER_SIZE; |
e382fdbe | 420 | for (j = 0; j != k; ++j) |
6e708ef2 | 421 | base[j] = fill; |
e382fdbe | 422 | } |
1b9be268 | 423 | |
ed7e0765 LC |
424 | ((scm_t_bits *) vector)[0] = (k << 8) | scm_tc7_vector; |
425 | ((scm_t_bits *) vector)[1] = 0; | |
1b9be268 | 426 | |
ed7e0765 | 427 | return PTR2SCM (vector); |
0f2d19dd | 428 | } |
1bbd0b84 | 429 | #undef FUNC_NAME |
0f2d19dd | 430 | |
6e708ef2 MV |
431 | SCM_DEFINE (scm_vector_copy, "vector-copy", 1, 0, 0, |
432 | (SCM vec), | |
433 | "Return a copy of @var{vec}.") | |
434 | #define FUNC_NAME s_scm_vector_copy | |
435 | { | |
436 | scm_t_array_handle handle; | |
437 | size_t i, len; | |
438 | ssize_t inc; | |
439 | const SCM *src; | |
ed7e0765 | 440 | SCM result, *dst; |
6e708ef2 MV |
441 | |
442 | src = scm_vector_elements (vec, &handle, &len, &inc); | |
ed7e0765 LC |
443 | |
444 | result = scm_c_make_vector (len, SCM_UNDEFINED); | |
445 | dst = SCM_I_VECTOR_WELTS (result); | |
6e708ef2 MV |
446 | for (i = 0; i < len; i++, src += inc) |
447 | dst[i] = *src; | |
ed7e0765 | 448 | |
c8857a4d | 449 | scm_array_handle_release (&handle); |
6e708ef2 | 450 | |
ed7e0765 | 451 | return result; |
6e708ef2 MV |
452 | } |
453 | #undef FUNC_NAME | |
454 | ||
d525e4f9 LC |
455 | \f |
456 | /* Weak vectors. */ | |
457 | ||
d525e4f9 LC |
458 | /* Allocate memory for the elements of a weak vector on behalf of the |
459 | caller. */ | |
ed7e0765 LC |
460 | static SCM |
461 | make_weak_vector (scm_t_bits type, size_t c_size) | |
6e708ef2 | 462 | { |
ed7e0765 LC |
463 | SCM *vector; |
464 | size_t total_size; | |
d525e4f9 | 465 | |
ed7e0765 LC |
466 | total_size = (c_size + SCM_I_VECTOR_HEADER_SIZE) * sizeof (SCM); |
467 | vector = (SCM *) scm_gc_malloc_pointerless (total_size, "weak vector"); | |
d525e4f9 | 468 | |
ed7e0765 LC |
469 | ((scm_t_bits *) vector)[0] = (c_size << 8) | scm_tc7_wvect; |
470 | ((scm_t_bits *) vector)[1] = type; | |
471 | ||
472 | return PTR2SCM (vector); | |
d525e4f9 LC |
473 | } |
474 | ||
475 | /* Return a new weak vector. The allocated vector will be of the given weak | |
476 | vector subtype. It will contain SIZE elements which are initialized with | |
477 | the FILL object, or, if FILL is undefined, with an unspecified object. */ | |
478 | SCM | |
479 | scm_i_make_weak_vector (scm_t_bits type, SCM size, SCM fill) | |
480 | { | |
481 | SCM wv, *base; | |
482 | size_t c_size, j; | |
483 | ||
484 | if (SCM_UNBNDP (fill)) | |
485 | fill = SCM_UNSPECIFIED; | |
6e708ef2 MV |
486 | |
487 | c_size = scm_to_unsigned_integer (size, 0, VECTOR_MAX_LENGTH); | |
ed7e0765 LC |
488 | wv = make_weak_vector (type, c_size); |
489 | base = SCM_I_WVECT_GC_WVELTS (wv); | |
6e708ef2 | 490 | |
d525e4f9 LC |
491 | for (j = 0; j != c_size; ++j) |
492 | base[j] = fill; | |
3a2de079 | 493 | |
d525e4f9 LC |
494 | return wv; |
495 | } | |
496 | ||
497 | /* Return a new weak vector with type TYPE and whose content are taken from | |
498 | list LST. */ | |
499 | SCM | |
500 | scm_i_make_weak_vector_from_list (scm_t_bits type, SCM lst) | |
501 | { | |
ed7e0765 | 502 | SCM wv, *elt; |
d525e4f9 LC |
503 | long c_size; |
504 | ||
505 | c_size = scm_ilength (lst); | |
506 | SCM_ASSERT (c_size >= 0, lst, SCM_ARG2, "scm_i_make_weak_vector_from_list"); | |
507 | ||
ed7e0765 LC |
508 | wv = make_weak_vector(type, (size_t) c_size); |
509 | ||
510 | for (elt = SCM_I_WVECT_GC_WVELTS (wv); | |
d525e4f9 LC |
511 | scm_is_pair (lst); |
512 | lst = SCM_CDR (lst), elt++) | |
513 | { | |
514 | *elt = SCM_CAR (lst); | |
6e708ef2 | 515 | } |
6e708ef2 | 516 | |
d525e4f9 | 517 | return wv; |
6e708ef2 | 518 | } |
e382fdbe | 519 | |
d525e4f9 LC |
520 | |
521 | \f | |
3b3b36dd | 522 | SCM_DEFINE (scm_vector_to_list, "vector->list", 1, 0, 0, |
1e6808ea | 523 | (SCM v), |
8f85c0c6 | 524 | "Return a newly allocated list composed of the elements of @var{v}.\n" |
1e6808ea | 525 | "\n" |
942e5b91 MG |
526 | "@lisp\n" |
527 | "(vector->list '#(dah dah didah)) @result{} (dah dah didah)\n" | |
528 | "(list->vector '(dididit dah)) @result{} #(dididit dah)\n" | |
529 | "@end lisp") | |
1bbd0b84 | 530 | #define FUNC_NAME s_scm_vector_to_list |
0f2d19dd | 531 | { |
6e708ef2 MV |
532 | SCM res = SCM_EOL; |
533 | const SCM *data; | |
534 | scm_t_array_handle handle; | |
22be72d3 | 535 | size_t i, count, len; |
6e708ef2 MV |
536 | ssize_t inc; |
537 | ||
538 | data = scm_vector_elements (v, &handle, &len, &inc); | |
22be72d3 LC |
539 | for (i = (len - 1) * inc, count = 0; |
540 | count < len; | |
541 | i -= inc, count++) | |
542 | res = scm_cons (data[i], res); | |
543 | ||
c8857a4d | 544 | scm_array_handle_release (&handle); |
6e708ef2 | 545 | return res; |
0f2d19dd | 546 | } |
1bbd0b84 | 547 | #undef FUNC_NAME |
0f2d19dd JB |
548 | |
549 | ||
a1ec6916 | 550 | SCM_DEFINE (scm_vector_fill_x, "vector-fill!", 2, 0, 0, |
1e6808ea | 551 | (SCM v, SCM fill), |
8f85c0c6 | 552 | "Store @var{fill} in every position of @var{vector}. The value\n" |
1e6808ea | 553 | "returned by @code{vector-fill!} is unspecified.") |
1bbd0b84 | 554 | #define FUNC_NAME s_scm_vector_fill_x |
0f2d19dd | 555 | { |
6e708ef2 MV |
556 | scm_t_array_handle handle; |
557 | SCM *data; | |
558 | size_t i, len; | |
559 | ssize_t inc; | |
560 | ||
561 | data = scm_vector_writable_elements (v, &handle, &len, &inc); | |
562 | for (i = 0; i < len; i += inc) | |
563 | data[i] = fill; | |
c8857a4d | 564 | scm_array_handle_release (&handle); |
6e708ef2 | 565 | return SCM_UNSPECIFIED; |
0f2d19dd | 566 | } |
1bbd0b84 | 567 | #undef FUNC_NAME |
0f2d19dd JB |
568 | |
569 | ||
0f2d19dd | 570 | SCM |
354116f7 | 571 | scm_i_vector_equal_p (SCM x, SCM y) |
0f2d19dd | 572 | { |
c014a02e | 573 | long i; |
6e708ef2 MV |
574 | for (i = SCM_I_VECTOR_LENGTH (x) - 1; i >= 0; i--) |
575 | if (scm_is_false (scm_equal_p (SCM_I_VECTOR_ELTS (x)[i], | |
576 | SCM_I_VECTOR_ELTS (y)[i]))) | |
0f2d19dd JB |
577 | return SCM_BOOL_F; |
578 | return SCM_BOOL_T; | |
579 | } | |
580 | ||
581 | ||
a1ec6916 | 582 | SCM_DEFINE (scm_vector_move_left_x, "vector-move-left!", 5, 0, 0, |
1bbd0b84 | 583 | (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2), |
694a9bb3 NJ |
584 | "Copy elements from @var{vec1}, positions @var{start1} to @var{end1},\n" |
585 | "to @var{vec2} starting at position @var{start2}. @var{start1} and\n" | |
586 | "@var{start2} are inclusive indices; @var{end1} is exclusive.\n\n" | |
587 | "@code{vector-move-left!} copies elements in leftmost order.\n" | |
588 | "Therefore, in the case where @var{vec1} and @var{vec2} refer to the\n" | |
589 | "same vector, @code{vector-move-left!} is usually appropriate when\n" | |
590 | "@var{start1} is greater than @var{start2}.") | |
1bbd0b84 | 591 | #define FUNC_NAME s_scm_vector_move_left_x |
0f2d19dd | 592 | { |
6e708ef2 MV |
593 | scm_t_array_handle handle1, handle2; |
594 | const SCM *elts1; | |
595 | SCM *elts2; | |
de5c0f58 | 596 | size_t len1, len2; |
6e708ef2 | 597 | ssize_t inc1, inc2; |
a55c2b68 | 598 | size_t i, j, e; |
6e708ef2 MV |
599 | |
600 | elts1 = scm_vector_elements (vec1, &handle1, &len1, &inc1); | |
601 | elts2 = scm_vector_writable_elements (vec2, &handle2, &len2, &inc2); | |
34d19ef6 | 602 | |
de5c0f58 MV |
603 | i = scm_to_unsigned_integer (start1, 0, len1); |
604 | e = scm_to_unsigned_integer (end1, i, len1); | |
ca659673 | 605 | SCM_ASSERT_RANGE (SCM_ARG3, end1, (e-i) <= len2); |
551b96d2 AW |
606 | j = scm_to_unsigned_integer (start2, 0, len2); |
607 | SCM_ASSERT_RANGE (SCM_ARG5, start2, j <= len2 - (e - i)); | |
de5c0f58 | 608 | |
6e708ef2 MV |
609 | i *= inc1; |
610 | e *= inc1; | |
611 | j *= inc2; | |
612 | for (; i < e; i += inc1, j += inc2) | |
613 | elts2[j] = elts1[i]; | |
614 | ||
c8857a4d MV |
615 | scm_array_handle_release (&handle2); |
616 | scm_array_handle_release (&handle1); | |
617 | ||
0f2d19dd JB |
618 | return SCM_UNSPECIFIED; |
619 | } | |
1bbd0b84 | 620 | #undef FUNC_NAME |
0f2d19dd | 621 | |
a1ec6916 | 622 | SCM_DEFINE (scm_vector_move_right_x, "vector-move-right!", 5, 0, 0, |
1bbd0b84 | 623 | (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2), |
694a9bb3 NJ |
624 | "Copy elements from @var{vec1}, positions @var{start1} to @var{end1},\n" |
625 | "to @var{vec2} starting at position @var{start2}. @var{start1} and\n" | |
626 | "@var{start2} are inclusive indices; @var{end1} is exclusive.\n\n" | |
627 | "@code{vector-move-right!} copies elements in rightmost order.\n" | |
628 | "Therefore, in the case where @var{vec1} and @var{vec2} refer to the\n" | |
629 | "same vector, @code{vector-move-right!} is usually appropriate when\n" | |
630 | "@var{start1} is less than @var{start2}.") | |
1bbd0b84 | 631 | #define FUNC_NAME s_scm_vector_move_right_x |
0f2d19dd | 632 | { |
6e708ef2 MV |
633 | scm_t_array_handle handle1, handle2; |
634 | const SCM *elts1; | |
635 | SCM *elts2; | |
de5c0f58 | 636 | size_t len1, len2; |
6e708ef2 | 637 | ssize_t inc1, inc2; |
a55c2b68 | 638 | size_t i, j, e; |
6e708ef2 MV |
639 | |
640 | elts1 = scm_vector_elements (vec1, &handle1, &len1, &inc1); | |
641 | elts2 = scm_vector_writable_elements (vec2, &handle2, &len2, &inc2); | |
0f2d19dd | 642 | |
de5c0f58 MV |
643 | i = scm_to_unsigned_integer (start1, 0, len1); |
644 | e = scm_to_unsigned_integer (end1, i, len1); | |
ca659673 | 645 | SCM_ASSERT_RANGE (SCM_ARG3, end1, (e-i) <= len2); |
551b96d2 AW |
646 | j = scm_to_unsigned_integer (start2, 0, len2); |
647 | SCM_ASSERT_RANGE (SCM_ARG5, start2, j <= len2 - (e - i)); | |
648 | ||
649 | j += (e - i); | |
de5c0f58 | 650 | |
6e708ef2 MV |
651 | i *= inc1; |
652 | e *= inc1; | |
653 | j *= inc2; | |
654 | while (i < e) | |
de5c0f58 | 655 | { |
6e708ef2 MV |
656 | e -= inc1; |
657 | j -= inc2; | |
658 | elts2[j] = elts1[e]; | |
de5c0f58 | 659 | } |
6e708ef2 | 660 | |
c8857a4d MV |
661 | scm_array_handle_release (&handle2); |
662 | scm_array_handle_release (&handle1); | |
663 | ||
0f2d19dd JB |
664 | return SCM_UNSPECIFIED; |
665 | } | |
1bbd0b84 | 666 | #undef FUNC_NAME |
0f2d19dd | 667 | |
438974d0 | 668 | \f |
2a610be5 AW |
669 | static SCM |
670 | vector_handle_ref (scm_t_array_handle *h, size_t idx) | |
88797580 | 671 | { |
2a610be5 AW |
672 | if (idx > h->dims[0].ubnd) |
673 | scm_out_of_range ("vector-handle-ref", scm_from_size_t (idx)); | |
674 | return ((SCM*)h->elements)[idx]; | |
88797580 MV |
675 | } |
676 | ||
2a610be5 AW |
677 | static void |
678 | vector_handle_set (scm_t_array_handle *h, size_t idx, SCM val) | |
88797580 | 679 | { |
2a610be5 AW |
680 | if (idx > h->dims[0].ubnd) |
681 | scm_out_of_range ("vector-handle-set!", scm_from_size_t (idx)); | |
682 | ((SCM*)h->writable_elements)[idx] = val; | |
88797580 | 683 | } |
88797580 | 684 | |
2a610be5 AW |
685 | static void |
686 | vector_get_handle (SCM v, scm_t_array_handle *h) | |
88797580 | 687 | { |
2a610be5 AW |
688 | h->array = v; |
689 | h->ndims = 1; | |
690 | h->dims = &h->dim0; | |
691 | h->dim0.lbnd = 0; | |
692 | h->dim0.ubnd = SCM_I_VECTOR_LENGTH (v) - 1; | |
693 | h->dim0.inc = 1; | |
694 | h->element_type = SCM_ARRAY_ELEMENT_TYPE_SCM; | |
695 | h->elements = h->writable_elements = SCM_I_VECTOR_WELTS (v); | |
88797580 MV |
696 | } |
697 | ||
c5f17102 AW |
698 | /* the & ~2 allows catching scm_tc7_wvect as well. needs changing if you change |
699 | tags.h. */ | |
2a610be5 AW |
700 | SCM_ARRAY_IMPLEMENTATION (scm_tc7_vector, 0x7f & ~2, |
701 | vector_handle_ref, vector_handle_set, | |
f65e0168 | 702 | vector_get_handle) |
f65e0168 | 703 | SCM_VECTOR_IMPLEMENTATION (SCM_ARRAY_ELEMENT_TYPE_SCM, scm_make_vector) |
88797580 | 704 | |
1cc91f1b | 705 | |
0f2d19dd JB |
706 | void |
707 | scm_init_vectors () | |
0f2d19dd | 708 | { |
a0599745 | 709 | #include "libguile/vectors.x" |
0f2d19dd JB |
710 | } |
711 | ||
89e00824 ML |
712 | |
713 | /* | |
714 | Local Variables: | |
715 | c-file-style: "gnu" | |
716 | End: | |
717 | */ |