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69d2000d | 1 | /* srfi-4.c --- Uniform numeric vector datatypes. |
f8579182 | 2 | * |
2b829bbb | 3 | * Copyright (C) 2001, 2004, 2006 Free Software Foundation, Inc. |
f8579182 MV |
4 | * |
5 | * This library is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU Lesser General Public | |
7 | * License as published by the Free Software Foundation; either | |
8 | * version 2.1 of the License, or (at your option) any later version. | |
9 | * | |
10 | * This library is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
16 | * License along with this library; if not, write to the Free Software | |
92205699 | 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
f8579182 MV |
18 | */ |
19 | ||
dbb605f5 | 20 | #ifdef HAVE_CONFIG_H |
69730f92 MV |
21 | # include <config.h> |
22 | #endif | |
23 | ||
f8579182 | 24 | #include <string.h> |
69730f92 | 25 | #include <errno.h> |
f8579182 MV |
26 | #include <stdio.h> |
27 | ||
69730f92 MV |
28 | #include "libguile/_scm.h" |
29 | #include "libguile/__scm.h" | |
f8579182 MV |
30 | #include "libguile/srfi-4.h" |
31 | #include "libguile/error.h" | |
32 | #include "libguile/read.h" | |
33 | #include "libguile/ports.h" | |
34 | #include "libguile/chars.h" | |
69730f92 MV |
35 | #include "libguile/vectors.h" |
36 | #include "libguile/unif.h" | |
37 | #include "libguile/strings.h" | |
00c17d45 | 38 | #include "libguile/strports.h" |
69730f92 | 39 | #include "libguile/dynwind.h" |
6e433d8b | 40 | #include "libguile/deprecation.h" |
69730f92 MV |
41 | |
42 | #ifdef HAVE_UNISTD_H | |
43 | #include <unistd.h> | |
44 | #endif | |
45 | ||
46 | #ifdef HAVE_IO_H | |
47 | #include <io.h> | |
48 | #endif | |
f8579182 | 49 | |
69d2000d | 50 | /* Smob type code for uniform numeric vectors. */ |
f8579182 MV |
51 | int scm_tc16_uvec = 0; |
52 | ||
4330ee25 | 53 | #define SCM_IS_UVEC(obj) SCM_SMOB_PREDICATE (scm_tc16_uvec, (obj)) |
f8579182 | 54 | |
69d2000d | 55 | /* Accessor macros for the three components of a uniform numeric |
f8579182 MV |
56 | vector: |
57 | - The type tag (one of the symbolic constants below). | |
58 | - The vector's length (counted in elements). | |
59 | - The address of the data area (holding the elements of the | |
60 | vector). */ | |
61 | #define SCM_UVEC_TYPE(u) (SCM_CELL_WORD_1(u)) | |
62 | #define SCM_UVEC_LENGTH(u) ((size_t)SCM_CELL_WORD_2(u)) | |
63 | #define SCM_UVEC_BASE(u) ((void *)SCM_CELL_WORD_3(u)) | |
64 | ||
65 | ||
69d2000d | 66 | /* Symbolic constants encoding the various types of uniform |
f8579182 MV |
67 | numeric vectors. */ |
68 | #define SCM_UVEC_U8 0 | |
69 | #define SCM_UVEC_S8 1 | |
70 | #define SCM_UVEC_U16 2 | |
71 | #define SCM_UVEC_S16 3 | |
72 | #define SCM_UVEC_U32 4 | |
73 | #define SCM_UVEC_S32 5 | |
74 | #define SCM_UVEC_U64 6 | |
75 | #define SCM_UVEC_S64 7 | |
76 | #define SCM_UVEC_F32 8 | |
77 | #define SCM_UVEC_F64 9 | |
cbdc8379 MV |
78 | #define SCM_UVEC_C32 10 |
79 | #define SCM_UVEC_C64 11 | |
f8579182 MV |
80 | |
81 | ||
82 | /* This array maps type tags to the size of the elements. */ | |
cbdc8379 | 83 | static const int uvec_sizes[12] = { |
f8579182 MV |
84 | 1, 1, |
85 | 2, 2, | |
86 | 4, 4, | |
00c17d45 | 87 | #if SCM_HAVE_T_INT64 |
f8579182 | 88 | 8, 8, |
00c17d45 MV |
89 | #else |
90 | sizeof (SCM), sizeof (SCM), | |
91 | #endif | |
cbdc8379 MV |
92 | sizeof(float), sizeof(double), |
93 | 2*sizeof(float), 2*sizeof(double) | |
f8579182 MV |
94 | }; |
95 | ||
cbdc8379 | 96 | static const char *uvec_tags[12] = { |
e0e49670 MV |
97 | "u8", "s8", |
98 | "u16", "s16", | |
99 | "u32", "s32", | |
100 | "u64", "s64", | |
cbdc8379 MV |
101 | "f32", "f64", |
102 | "c32", "c64", | |
e0e49670 MV |
103 | }; |
104 | ||
cbdc8379 | 105 | static const char *uvec_names[12] = { |
f8579182 MV |
106 | "u8vector", "s8vector", |
107 | "u16vector", "s16vector", | |
108 | "u32vector", "s32vector", | |
109 | "u64vector", "s64vector", | |
cbdc8379 MV |
110 | "f32vector", "f64vector", |
111 | "c32vector", "c64vector" | |
f8579182 MV |
112 | }; |
113 | ||
114 | /* ================================================================ */ | |
115 | /* SMOB procedures. */ | |
116 | /* ================================================================ */ | |
117 | ||
118 | ||
69d2000d | 119 | /* Smob print hook for uniform vectors. */ |
f8579182 MV |
120 | static int |
121 | uvec_print (SCM uvec, SCM port, scm_print_state *pstate) | |
122 | { | |
123 | union { | |
124 | scm_t_uint8 *u8; | |
125 | scm_t_int8 *s8; | |
126 | scm_t_uint16 *u16; | |
127 | scm_t_int16 *s16; | |
128 | scm_t_uint32 *u32; | |
129 | scm_t_int32 *s32; | |
130 | #if SCM_HAVE_T_INT64 | |
131 | scm_t_uint64 *u64; | |
132 | scm_t_int64 *s64; | |
133 | #endif | |
134 | float *f32; | |
135 | double *f64; | |
00c17d45 | 136 | SCM *fake_64; |
f8579182 MV |
137 | } np; |
138 | ||
139 | size_t i = 0; | |
140 | const size_t uvlen = SCM_UVEC_LENGTH (uvec); | |
f8579182 MV |
141 | void *uptr = SCM_UVEC_BASE (uvec); |
142 | ||
143 | switch (SCM_UVEC_TYPE (uvec)) | |
144 | { | |
e0e49670 MV |
145 | case SCM_UVEC_U8: np.u8 = (scm_t_uint8 *) uptr; break; |
146 | case SCM_UVEC_S8: np.s8 = (scm_t_int8 *) uptr; break; | |
147 | case SCM_UVEC_U16: np.u16 = (scm_t_uint16 *) uptr; break; | |
148 | case SCM_UVEC_S16: np.s16 = (scm_t_int16 *) uptr; break; | |
149 | case SCM_UVEC_U32: np.u32 = (scm_t_uint32 *) uptr; break; | |
150 | case SCM_UVEC_S32: np.s32 = (scm_t_int32 *) uptr; break; | |
f8579182 | 151 | #if SCM_HAVE_T_INT64 |
e0e49670 MV |
152 | case SCM_UVEC_U64: np.u64 = (scm_t_uint64 *) uptr; break; |
153 | case SCM_UVEC_S64: np.s64 = (scm_t_int64 *) uptr; break; | |
00c17d45 MV |
154 | #else |
155 | case SCM_UVEC_U64: | |
156 | case SCM_UVEC_S64: np.fake_64 = (SCM *) uptr; break; | |
157 | #endif | |
e0e49670 MV |
158 | case SCM_UVEC_F32: np.f32 = (float *) uptr; break; |
159 | case SCM_UVEC_F64: np.f64 = (double *) uptr; break; | |
cbdc8379 MV |
160 | case SCM_UVEC_C32: np.f32 = (float *) uptr; break; |
161 | case SCM_UVEC_C64: np.f64 = (double *) uptr; break; | |
f8579182 MV |
162 | default: |
163 | abort (); /* Sanity check. */ | |
164 | break; | |
165 | } | |
166 | ||
167 | scm_putc ('#', port); | |
e0e49670 | 168 | scm_puts (uvec_tags [SCM_UVEC_TYPE (uvec)], port); |
f8579182 MV |
169 | scm_putc ('(', port); |
170 | ||
171 | while (i < uvlen) | |
172 | { | |
173 | if (i != 0) scm_puts (" ", port); | |
174 | switch (SCM_UVEC_TYPE (uvec)) | |
175 | { | |
176 | case SCM_UVEC_U8: scm_uintprint (*np.u8, 10, port); np.u8++; break; | |
177 | case SCM_UVEC_S8: scm_intprint (*np.s8, 10, port); np.s8++; break; | |
178 | case SCM_UVEC_U16: scm_uintprint (*np.u16, 10, port); np.u16++; break; | |
179 | case SCM_UVEC_S16: scm_intprint (*np.s16, 10, port); np.s16++; break; | |
180 | case SCM_UVEC_U32: scm_uintprint (*np.u32, 10, port); np.u32++; break; | |
181 | case SCM_UVEC_S32: scm_intprint (*np.s32, 10, port); np.s32++; break; | |
182 | #if SCM_HAVE_T_INT64 | |
183 | case SCM_UVEC_U64: scm_uintprint (*np.u64, 10, port); np.u64++; break; | |
184 | case SCM_UVEC_S64: scm_intprint (*np.s64, 10, port); np.s64++; break; | |
00c17d45 MV |
185 | #else |
186 | case SCM_UVEC_U64: | |
187 | case SCM_UVEC_S64: scm_iprin1 (*np.fake_64, port, pstate); | |
188 | np.fake_64++; break; | |
f8579182 MV |
189 | #endif |
190 | case SCM_UVEC_F32: scm_i_print_double (*np.f32, port); np.f32++; break; | |
191 | case SCM_UVEC_F64: scm_i_print_double (*np.f64, port); np.f64++; break; | |
cbdc8379 MV |
192 | case SCM_UVEC_C32: |
193 | scm_i_print_complex (np.f32[0], np.f32[1], port); | |
194 | np.f32 += 2; | |
195 | break; | |
196 | case SCM_UVEC_C64: | |
197 | scm_i_print_complex (np.f64[0], np.f64[1], port); | |
198 | np.f64 += 2; | |
199 | break; | |
f8579182 MV |
200 | default: |
201 | abort (); /* Sanity check. */ | |
202 | break; | |
203 | } | |
204 | i++; | |
205 | } | |
206 | scm_remember_upto_here_1 (uvec); | |
207 | scm_puts (")", port); | |
208 | return 1; | |
209 | } | |
210 | ||
e0e49670 MV |
211 | const char * |
212 | scm_i_uniform_vector_tag (SCM uvec) | |
213 | { | |
214 | return uvec_tags[SCM_UVEC_TYPE (uvec)]; | |
215 | } | |
216 | ||
f8579182 MV |
217 | static SCM |
218 | uvec_equalp (SCM a, SCM b) | |
219 | { | |
220 | SCM result = SCM_BOOL_T; | |
221 | if (SCM_UVEC_TYPE (a) != SCM_UVEC_TYPE (b)) | |
222 | result = SCM_BOOL_F; | |
223 | else if (SCM_UVEC_LENGTH (a) != SCM_UVEC_LENGTH (b)) | |
224 | result = SCM_BOOL_F; | |
00c17d45 MV |
225 | #if SCM_HAVE_T_INT64 == 0 |
226 | else if (SCM_UVEC_TYPE (a) == SCM_UVEC_U64 | |
227 | || SCM_UVEC_TYPE (a) == SCM_UVEC_S64) | |
228 | { | |
229 | SCM *aptr = (SCM *)SCM_UVEC_BASE (a), *bptr = (SCM *)SCM_UVEC_BASE (b); | |
230 | size_t len = SCM_UVEC_LENGTH (a), i; | |
231 | for (i = 0; i < len; i++) | |
232 | if (scm_is_false (scm_num_eq_p (*aptr++, *bptr++))) | |
233 | { | |
234 | result = SCM_BOOL_F; | |
235 | break; | |
236 | } | |
237 | } | |
238 | #endif | |
f8579182 MV |
239 | else if (memcmp (SCM_UVEC_BASE (a), SCM_UVEC_BASE (b), |
240 | SCM_UVEC_LENGTH (a) * uvec_sizes[SCM_UVEC_TYPE(a)]) != 0) | |
241 | result = SCM_BOOL_F; | |
242 | ||
243 | scm_remember_upto_here_2 (a, b); | |
244 | return result; | |
245 | } | |
246 | ||
f8579182 MV |
247 | |
248 | /* ================================================================ */ | |
249 | /* Utility procedures. */ | |
250 | /* ================================================================ */ | |
251 | ||
b0c0a310 | 252 | static SCM_C_INLINE_KEYWORD int |
f8579182 MV |
253 | is_uvec (int type, SCM obj) |
254 | { | |
4330ee25 MV |
255 | if (SCM_IS_UVEC (obj)) |
256 | return SCM_UVEC_TYPE (obj) == type; | |
04b87de5 | 257 | if (SCM_I_ARRAYP (obj) && SCM_I_ARRAY_NDIM (obj) == 1) |
4330ee25 | 258 | { |
04b87de5 | 259 | SCM v = SCM_I_ARRAY_V (obj); |
4330ee25 MV |
260 | return SCM_IS_UVEC (v) && SCM_UVEC_TYPE (v) == type; |
261 | } | |
262 | return 0; | |
f8579182 MV |
263 | } |
264 | ||
b0c0a310 | 265 | static SCM_C_INLINE_KEYWORD SCM |
f8579182 MV |
266 | uvec_p (int type, SCM obj) |
267 | { | |
268 | return scm_from_bool (is_uvec (type, obj)); | |
269 | } | |
270 | ||
b0c0a310 | 271 | static SCM_C_INLINE_KEYWORD void |
f8579182 MV |
272 | uvec_assert (int type, SCM obj) |
273 | { | |
274 | if (!is_uvec (type, obj)) | |
275 | scm_wrong_type_arg_msg (NULL, 0, obj, uvec_names[type]); | |
276 | } | |
277 | ||
faa00365 | 278 | static SCM |
ab7acbb7 | 279 | take_uvec (int type, void *base, size_t len) |
faa00365 MV |
280 | { |
281 | SCM_RETURN_NEWSMOB3 (scm_tc16_uvec, type, len, (scm_t_bits) base); | |
282 | } | |
283 | ||
69d2000d | 284 | /* Create a new, uninitialized uniform numeric vector of type TYPE |
f8579182 MV |
285 | with space for LEN elements. */ |
286 | static SCM | |
faa00365 | 287 | alloc_uvec (int type, size_t len) |
f8579182 | 288 | { |
811eb6d0 MV |
289 | void *base; |
290 | if (len > SCM_I_SIZE_MAX / uvec_sizes[type]) | |
291 | scm_out_of_range (NULL, scm_from_size_t (len)); | |
292 | base = scm_gc_malloc (len * uvec_sizes[type], uvec_names[type]); | |
00c17d45 MV |
293 | #if SCM_HAVE_T_INT64 == 0 |
294 | if (type == SCM_UVEC_U64 || type == SCM_UVEC_S64) | |
295 | { | |
296 | SCM *ptr = (SCM *)base; | |
297 | size_t i; | |
298 | for (i = 0; i < len; i++) | |
299 | *ptr++ = SCM_UNSPECIFIED; | |
300 | } | |
301 | #endif | |
faa00365 | 302 | return take_uvec (type, base, len); |
f8579182 MV |
303 | } |
304 | ||
305 | /* GCC doesn't seem to want to optimize unused switch clauses away, | |
306 | so we use a big 'if' in the next two functions. | |
307 | */ | |
308 | ||
b0c0a310 | 309 | static SCM_C_INLINE_KEYWORD SCM |
4330ee25 | 310 | uvec_fast_ref (int type, const void *base, size_t c_idx) |
f8579182 MV |
311 | { |
312 | if (type == SCM_UVEC_U8) | |
313 | return scm_from_uint8 (((scm_t_uint8*)base)[c_idx]); | |
314 | else if (type == SCM_UVEC_S8) | |
315 | return scm_from_int8 (((scm_t_int8*)base)[c_idx]); | |
316 | else if (type == SCM_UVEC_U16) | |
317 | return scm_from_uint16 (((scm_t_uint16*)base)[c_idx]); | |
318 | else if (type == SCM_UVEC_S16) | |
319 | return scm_from_int16 (((scm_t_int16*)base)[c_idx]); | |
320 | else if (type == SCM_UVEC_U32) | |
321 | return scm_from_uint32 (((scm_t_uint32*)base)[c_idx]); | |
322 | else if (type == SCM_UVEC_S32) | |
323 | return scm_from_int32 (((scm_t_int32*)base)[c_idx]); | |
324 | #if SCM_HAVE_T_INT64 | |
325 | else if (type == SCM_UVEC_U64) | |
326 | return scm_from_uint64 (((scm_t_uint64*)base)[c_idx]); | |
327 | else if (type == SCM_UVEC_S64) | |
328 | return scm_from_int64 (((scm_t_int64*)base)[c_idx]); | |
00c17d45 MV |
329 | #else |
330 | else if (type == SCM_UVEC_U64) | |
331 | return ((SCM *)base)[c_idx]; | |
332 | else if (type == SCM_UVEC_S64) | |
333 | return ((SCM *)base)[c_idx]; | |
f8579182 MV |
334 | #endif |
335 | else if (type == SCM_UVEC_F32) | |
336 | return scm_from_double (((float*)base)[c_idx]); | |
337 | else if (type == SCM_UVEC_F64) | |
338 | return scm_from_double (((double*)base)[c_idx]); | |
cbdc8379 MV |
339 | else if (type == SCM_UVEC_C32) |
340 | return scm_c_make_rectangular (((float*)base)[2*c_idx], | |
341 | ((float*)base)[2*c_idx+1]); | |
342 | else if (type == SCM_UVEC_C64) | |
343 | return scm_c_make_rectangular (((double*)base)[2*c_idx], | |
344 | ((double*)base)[2*c_idx+1]); | |
28d4aef1 MV |
345 | else |
346 | return SCM_BOOL_F; | |
f8579182 MV |
347 | } |
348 | ||
00c17d45 MV |
349 | #if SCM_HAVE_T_INT64 == 0 |
350 | static SCM scm_uint64_min, scm_uint64_max; | |
351 | static SCM scm_int64_min, scm_int64_max; | |
352 | ||
353 | static void | |
354 | assert_exact_integer_range (SCM val, SCM min, SCM max) | |
355 | { | |
356 | if (!scm_is_integer (val) | |
357 | || scm_is_false (scm_exact_p (val))) | |
358 | scm_wrong_type_arg_msg (NULL, 0, val, "exact integer"); | |
359 | if (scm_is_true (scm_less_p (val, min)) | |
360 | || scm_is_true (scm_gr_p (val, max))) | |
361 | scm_out_of_range (NULL, val); | |
362 | } | |
363 | #endif | |
364 | ||
b0c0a310 | 365 | static SCM_C_INLINE_KEYWORD void |
f8579182 MV |
366 | uvec_fast_set_x (int type, void *base, size_t c_idx, SCM val) |
367 | { | |
368 | if (type == SCM_UVEC_U8) | |
369 | (((scm_t_uint8*)base)[c_idx]) = scm_to_uint8 (val); | |
370 | else if (type == SCM_UVEC_S8) | |
371 | (((scm_t_int8*)base)[c_idx]) = scm_to_int8 (val); | |
372 | else if (type == SCM_UVEC_U16) | |
373 | (((scm_t_uint16*)base)[c_idx]) = scm_to_uint16 (val); | |
374 | else if (type == SCM_UVEC_S16) | |
375 | (((scm_t_int16*)base)[c_idx]) = scm_to_int16 (val); | |
376 | else if (type == SCM_UVEC_U32) | |
377 | (((scm_t_uint32*)base)[c_idx]) = scm_to_uint32 (val); | |
378 | else if (type == SCM_UVEC_S32) | |
379 | (((scm_t_int32*)base)[c_idx]) = scm_to_int32 (val); | |
380 | #if SCM_HAVE_T_INT64 | |
381 | else if (type == SCM_UVEC_U64) | |
382 | (((scm_t_uint64*)base)[c_idx]) = scm_to_uint64 (val); | |
383 | else if (type == SCM_UVEC_S64) | |
384 | (((scm_t_int64*)base)[c_idx]) = scm_to_int64 (val); | |
00c17d45 MV |
385 | #else |
386 | else if (type == SCM_UVEC_U64) | |
387 | { | |
388 | assert_exact_integer_range (val, scm_uint64_min, scm_uint64_max); | |
389 | ((SCM *)base)[c_idx] = val; | |
390 | } | |
391 | else if (type == SCM_UVEC_S64) | |
392 | { | |
393 | assert_exact_integer_range (val, scm_int64_min, scm_int64_max); | |
394 | ((SCM *)base)[c_idx] = val; | |
395 | } | |
f8579182 MV |
396 | #endif |
397 | else if (type == SCM_UVEC_F32) | |
398 | (((float*)base)[c_idx]) = scm_to_double (val); | |
399 | else if (type == SCM_UVEC_F64) | |
400 | (((double*)base)[c_idx]) = scm_to_double (val); | |
cbdc8379 MV |
401 | else if (type == SCM_UVEC_C32) |
402 | { | |
403 | (((float*)base)[2*c_idx]) = scm_c_real_part (val); | |
404 | (((float*)base)[2*c_idx+1]) = scm_c_imag_part (val); | |
405 | } | |
406 | else if (type == SCM_UVEC_C64) | |
407 | { | |
408 | (((double*)base)[2*c_idx]) = scm_c_real_part (val); | |
409 | (((double*)base)[2*c_idx+1]) = scm_c_imag_part (val); | |
410 | } | |
f8579182 MV |
411 | } |
412 | ||
b0c0a310 | 413 | static SCM_C_INLINE_KEYWORD SCM |
f8579182 MV |
414 | make_uvec (int type, SCM len, SCM fill) |
415 | { | |
811eb6d0 | 416 | size_t c_len = scm_to_size_t (len); |
f8579182 MV |
417 | SCM uvec = alloc_uvec (type, c_len); |
418 | if (!SCM_UNBNDP (fill)) | |
419 | { | |
420 | size_t idx; | |
421 | void *base = SCM_UVEC_BASE (uvec); | |
422 | for (idx = 0; idx < c_len; idx++) | |
423 | uvec_fast_set_x (type, base, idx, fill); | |
424 | } | |
425 | return uvec; | |
426 | } | |
427 | ||
b0c0a310 | 428 | static SCM_C_INLINE_KEYWORD void * |
4330ee25 MV |
429 | uvec_writable_elements (int type, SCM uvec, scm_t_array_handle *handle, |
430 | size_t *lenp, ssize_t *incp) | |
431 | { | |
432 | if (type >= 0) | |
433 | { | |
434 | SCM v = uvec; | |
04b87de5 MV |
435 | if (SCM_I_ARRAYP (v)) |
436 | v = SCM_I_ARRAY_V (v); | |
4330ee25 MV |
437 | uvec_assert (type, v); |
438 | } | |
439 | ||
440 | return scm_uniform_vector_writable_elements (uvec, handle, lenp, incp); | |
441 | } | |
442 | ||
b0c0a310 | 443 | static SCM_C_INLINE_KEYWORD const void * |
4330ee25 MV |
444 | uvec_elements (int type, SCM uvec, scm_t_array_handle *handle, |
445 | size_t *lenp, ssize_t *incp) | |
446 | { | |
447 | return uvec_writable_elements (type, uvec, handle, lenp, incp); | |
448 | } | |
449 | ||
5e320e59 MV |
450 | static int |
451 | uvec_type (scm_t_array_handle *h) | |
452 | { | |
453 | SCM v = h->array; | |
04b87de5 MV |
454 | if (SCM_I_ARRAYP (v)) |
455 | v = SCM_I_ARRAY_V (v); | |
5e320e59 MV |
456 | return SCM_UVEC_TYPE (v); |
457 | } | |
458 | ||
4330ee25 MV |
459 | static SCM |
460 | uvec_to_list (int type, SCM uvec) | |
461 | { | |
462 | scm_t_array_handle handle; | |
463 | size_t len; | |
464 | ssize_t i, inc; | |
465 | const void *elts; | |
466 | SCM res = SCM_EOL; | |
467 | ||
468 | elts = uvec_elements (type, uvec, &handle, &len, &inc); | |
469 | for (i = len*inc; i > 0;) | |
470 | { | |
471 | i -= inc; | |
4ea4bc4c | 472 | res = scm_cons (scm_array_handle_ref (&handle, i), res); |
4330ee25 MV |
473 | } |
474 | scm_array_handle_release (&handle); | |
475 | return res; | |
476 | } | |
477 | ||
b0c0a310 | 478 | static SCM_C_INLINE_KEYWORD SCM |
f8579182 MV |
479 | uvec_length (int type, SCM uvec) |
480 | { | |
4330ee25 MV |
481 | scm_t_array_handle handle; |
482 | size_t len; | |
483 | ssize_t inc; | |
484 | uvec_elements (type, uvec, &handle, &len, &inc); | |
485 | scm_array_handle_release (&handle); | |
486 | return scm_from_size_t (len); | |
f8579182 MV |
487 | } |
488 | ||
b0c0a310 | 489 | static SCM_C_INLINE_KEYWORD SCM |
f8579182 MV |
490 | uvec_ref (int type, SCM uvec, SCM idx) |
491 | { | |
4330ee25 MV |
492 | scm_t_array_handle handle; |
493 | size_t i, len; | |
494 | ssize_t inc; | |
495 | const void *elts; | |
f8579182 MV |
496 | SCM res; |
497 | ||
4330ee25 | 498 | elts = uvec_elements (type, uvec, &handle, &len, &inc); |
5e320e59 MV |
499 | if (type < 0) |
500 | type = uvec_type (&handle); | |
4330ee25 MV |
501 | i = scm_to_unsigned_integer (idx, 0, len-1); |
502 | res = uvec_fast_ref (type, elts, i*inc); | |
503 | scm_array_handle_release (&handle); | |
f8579182 MV |
504 | return res; |
505 | } | |
506 | ||
b0c0a310 | 507 | static SCM_C_INLINE_KEYWORD SCM |
f8579182 MV |
508 | uvec_set_x (int type, SCM uvec, SCM idx, SCM val) |
509 | { | |
4330ee25 MV |
510 | scm_t_array_handle handle; |
511 | size_t i, len; | |
512 | ssize_t inc; | |
513 | void *elts; | |
f8579182 | 514 | |
4330ee25 | 515 | elts = uvec_writable_elements (type, uvec, &handle, &len, &inc); |
5e320e59 MV |
516 | if (type < 0) |
517 | type = uvec_type (&handle); | |
4330ee25 MV |
518 | i = scm_to_unsigned_integer (idx, 0, len-1); |
519 | uvec_fast_set_x (type, elts, i*inc, val); | |
520 | scm_array_handle_release (&handle); | |
f8579182 MV |
521 | return SCM_UNSPECIFIED; |
522 | } | |
523 | ||
b0c0a310 | 524 | static SCM_C_INLINE_KEYWORD SCM |
f8579182 MV |
525 | list_to_uvec (int type, SCM list) |
526 | { | |
527 | SCM uvec; | |
528 | void *base; | |
529 | long idx; | |
530 | long len = scm_ilength (list); | |
531 | if (len < 0) | |
532 | scm_wrong_type_arg_msg (NULL, 0, list, "proper list"); | |
533 | ||
534 | uvec = alloc_uvec (type, len); | |
535 | base = SCM_UVEC_BASE (uvec); | |
536 | idx = 0; | |
537 | while (scm_is_pair (list) && idx < len) | |
538 | { | |
539 | uvec_fast_set_x (type, base, idx, SCM_CAR (list)); | |
540 | list = SCM_CDR (list); | |
541 | idx++; | |
542 | } | |
543 | return uvec; | |
544 | } | |
545 | ||
90d4368c MV |
546 | static SCM |
547 | coerce_to_uvec (int type, SCM obj) | |
548 | { | |
549 | if (is_uvec (type, obj)) | |
550 | return obj; | |
551 | else if (scm_is_pair (obj)) | |
552 | return list_to_uvec (type, obj); | |
811eb6d0 | 553 | else if (scm_is_generalized_vector (obj)) |
90d4368c | 554 | { |
4e8ad323 | 555 | scm_t_array_handle handle; |
811eb6d0 MV |
556 | size_t len = scm_c_generalized_vector_length (obj), i; |
557 | SCM uvec = alloc_uvec (type, len); | |
4e8ad323 | 558 | scm_array_get_handle (uvec, &handle); |
811eb6d0 | 559 | for (i = 0; i < len; i++) |
4e8ad323 MV |
560 | scm_array_handle_set (&handle, i, |
561 | scm_c_generalized_vector_ref (obj, i)); | |
562 | scm_array_handle_release (&handle); | |
90d4368c MV |
563 | return uvec; |
564 | } | |
565 | else | |
811eb6d0 | 566 | scm_wrong_type_arg_msg (NULL, 0, obj, "list or generalized vector"); |
90d4368c MV |
567 | } |
568 | ||
f301dbf3 MV |
569 | SCM_SYMBOL (scm_sym_a, "a"); |
570 | SCM_SYMBOL (scm_sym_b, "b"); | |
f8579182 | 571 | |
e0e49670 | 572 | SCM |
f301dbf3 | 573 | scm_i_generalized_vector_type (SCM v) |
e0e49670 | 574 | { |
811eb6d0 | 575 | if (scm_is_vector (v)) |
f301dbf3 | 576 | return SCM_BOOL_T; |
811eb6d0 | 577 | else if (scm_is_string (v)) |
f301dbf3 | 578 | return scm_sym_a; |
811eb6d0 | 579 | else if (scm_is_bitvector (v)) |
f301dbf3 | 580 | return scm_sym_b; |
811eb6d0 | 581 | else if (scm_is_uniform_vector (v)) |
f301dbf3 | 582 | return scm_from_locale_symbol (uvec_tags[SCM_UVEC_TYPE(v)]); |
811eb6d0 MV |
583 | else |
584 | return SCM_BOOL_F; | |
e0e49670 MV |
585 | } |
586 | ||
587 | int | |
588 | scm_is_uniform_vector (SCM obj) | |
589 | { | |
4330ee25 MV |
590 | if (SCM_IS_UVEC (obj)) |
591 | return 1; | |
04b87de5 | 592 | if (SCM_I_ARRAYP (obj) && SCM_I_ARRAY_NDIM (obj) == 1) |
4330ee25 | 593 | { |
04b87de5 | 594 | SCM v = SCM_I_ARRAY_V (obj); |
4330ee25 MV |
595 | return SCM_IS_UVEC (v); |
596 | } | |
597 | return 0; | |
e0e49670 MV |
598 | } |
599 | ||
600 | size_t | |
4330ee25 | 601 | scm_c_uniform_vector_length (SCM uvec) |
e0e49670 | 602 | { |
4330ee25 MV |
603 | /* scm_generalized_vector_get_handle will ultimately call us to get |
604 | the length of uniform vectors, so we can't use uvec_elements for | |
605 | naked vectors. | |
606 | */ | |
607 | ||
608 | if (SCM_IS_UVEC (uvec)) | |
609 | return SCM_UVEC_LENGTH (uvec); | |
e0e49670 | 610 | else |
4330ee25 MV |
611 | { |
612 | scm_t_array_handle handle; | |
613 | size_t len; | |
614 | ssize_t inc; | |
615 | uvec_elements (-1, uvec, &handle, &len, &inc); | |
616 | scm_array_handle_release (&handle); | |
617 | return len; | |
618 | } | |
e0e49670 MV |
619 | } |
620 | ||
e0e49670 MV |
621 | SCM_DEFINE (scm_uniform_vector_p, "uniform-vector?", 1, 0, 0, |
622 | (SCM obj), | |
623 | "Return @code{#t} if @var{obj} is a uniform vector.") | |
624 | #define FUNC_NAME s_scm_uniform_vector_p | |
625 | { | |
626 | return scm_from_bool (scm_is_uniform_vector (obj)); | |
627 | } | |
628 | #undef FUNC_NAME | |
629 | ||
4330ee25 MV |
630 | SCM |
631 | scm_c_uniform_vector_ref (SCM v, size_t idx) | |
632 | { | |
633 | scm_t_array_handle handle; | |
4330ee25 MV |
634 | size_t len; |
635 | ssize_t inc; | |
636 | SCM res; | |
637 | ||
4e8ad323 | 638 | uvec_elements (-1, v, &handle, &len, &inc); |
4330ee25 MV |
639 | if (idx >= len) |
640 | scm_out_of_range (NULL, scm_from_size_t (idx)); | |
4e8ad323 | 641 | res = scm_array_handle_ref (&handle, idx*inc); |
4330ee25 MV |
642 | scm_array_handle_release (&handle); |
643 | return res; | |
644 | } | |
645 | ||
e0e49670 MV |
646 | SCM_DEFINE (scm_uniform_vector_ref, "uniform-vector-ref", 2, 0, 0, |
647 | (SCM v, SCM idx), | |
648 | "Return the element at index @var{idx} of the\n" | |
649 | "homogenous numeric vector @var{v}.") | |
650 | #define FUNC_NAME s_scm_uniform_vector_ref | |
651 | { | |
4330ee25 | 652 | #if SCM_ENABLE_DEPRECATED |
e0e49670 MV |
653 | /* Support old argument convention. |
654 | */ | |
655 | if (scm_is_pair (idx)) | |
656 | { | |
4330ee25 MV |
657 | scm_c_issue_deprecation_warning |
658 | ("Using a list as the index to uniform-vector-ref is deprecated."); | |
e0e49670 MV |
659 | if (!scm_is_null (SCM_CDR (idx))) |
660 | scm_wrong_num_args (NULL); | |
661 | idx = SCM_CAR (idx); | |
662 | } | |
4330ee25 | 663 | #endif |
e0e49670 | 664 | |
4330ee25 | 665 | return scm_c_uniform_vector_ref (v, scm_to_size_t (idx)); |
e0e49670 MV |
666 | } |
667 | #undef FUNC_NAME | |
668 | ||
4330ee25 MV |
669 | void |
670 | scm_c_uniform_vector_set_x (SCM v, size_t idx, SCM val) | |
811eb6d0 | 671 | { |
4330ee25 | 672 | scm_t_array_handle handle; |
4330ee25 MV |
673 | size_t len; |
674 | ssize_t inc; | |
675 | ||
4e8ad323 | 676 | uvec_writable_elements (-1, v, &handle, &len, &inc); |
4330ee25 MV |
677 | if (idx >= len) |
678 | scm_out_of_range (NULL, scm_from_size_t (idx)); | |
4e8ad323 | 679 | scm_array_handle_set (&handle, idx*inc, val); |
4330ee25 | 680 | scm_array_handle_release (&handle); |
811eb6d0 MV |
681 | } |
682 | ||
e0e49670 MV |
683 | SCM_DEFINE (scm_uniform_vector_set_x, "uniform-vector-set!", 3, 0, 0, |
684 | (SCM v, SCM idx, SCM val), | |
685 | "Set the element at index @var{idx} of the\n" | |
686 | "homogenous numeric vector @var{v} to @var{val}.") | |
687 | #define FUNC_NAME s_scm_uniform_vector_set_x | |
688 | { | |
4330ee25 | 689 | #if SCM_ENABLE_DEPRECATED |
e0e49670 MV |
690 | /* Support old argument convention. |
691 | */ | |
692 | if (scm_is_pair (idx)) | |
693 | { | |
4330ee25 MV |
694 | scm_c_issue_deprecation_warning |
695 | ("Using a list as the index to uniform-vector-set! is deprecated."); | |
e0e49670 MV |
696 | if (!scm_is_null (SCM_CDR (idx))) |
697 | scm_wrong_num_args (NULL); | |
698 | idx = SCM_CAR (idx); | |
699 | } | |
4330ee25 | 700 | #endif |
e0e49670 | 701 | |
4330ee25 MV |
702 | scm_c_uniform_vector_set_x (v, scm_to_size_t (idx), val); |
703 | return SCM_UNSPECIFIED; | |
e0e49670 MV |
704 | } |
705 | #undef FUNC_NAME | |
706 | ||
707 | SCM_DEFINE (scm_uniform_vector_to_list, "uniform-vector->list", 1, 0, 0, | |
708 | (SCM uvec), | |
69d2000d | 709 | "Convert the uniform numeric vector @var{uvec} to a list.") |
811eb6d0 | 710 | #define FUNC_NAME s_scm_uniform_vector_to_list |
e0e49670 | 711 | { |
4330ee25 | 712 | return uvec_to_list (-1, uvec); |
e0e49670 MV |
713 | } |
714 | #undef FUNC_NAME | |
715 | ||
6e708ef2 | 716 | size_t |
fea99690 | 717 | scm_array_handle_uniform_element_size (scm_t_array_handle *h) |
e0e49670 | 718 | { |
fea99690 | 719 | SCM vec = h->array; |
04b87de5 MV |
720 | if (SCM_I_ARRAYP (vec)) |
721 | vec = SCM_I_ARRAY_V (vec); | |
fea99690 MV |
722 | if (scm_is_uniform_vector (vec)) |
723 | return uvec_sizes[SCM_UVEC_TYPE(vec)]; | |
724 | scm_wrong_type_arg_msg (NULL, 0, h->array, "uniform array"); | |
e0e49670 | 725 | } |
7c2ef9a8 MV |
726 | |
727 | #if SCM_ENABLE_DEPRECATED | |
fea99690 | 728 | |
6e708ef2 MV |
729 | /* return the size of an element in a uniform array or 0 if type not |
730 | found. */ | |
731 | size_t | |
732 | scm_uniform_element_size (SCM obj) | |
e0e49670 | 733 | { |
7c2ef9a8 MV |
734 | scm_c_issue_deprecation_warning |
735 | ("scm_uniform_element_size is deprecated. " | |
736 | "Use scm_array_handle_uniform_element_size instead."); | |
737 | ||
4330ee25 | 738 | if (SCM_IS_UVEC (obj)) |
fea99690 | 739 | return uvec_sizes[SCM_UVEC_TYPE(obj)]; |
6e708ef2 MV |
740 | else |
741 | return 0; | |
e0e49670 MV |
742 | } |
743 | ||
7c2ef9a8 MV |
744 | #endif |
745 | ||
6e708ef2 MV |
746 | const void * |
747 | scm_array_handle_uniform_elements (scm_t_array_handle *h) | |
d44ff083 | 748 | { |
6e708ef2 | 749 | return scm_array_handle_uniform_writable_elements (h); |
d44ff083 MV |
750 | } |
751 | ||
b590aceb | 752 | void * |
6e708ef2 | 753 | scm_array_handle_uniform_writable_elements (scm_t_array_handle *h) |
b590aceb | 754 | { |
6e708ef2 | 755 | SCM vec = h->array; |
04b87de5 MV |
756 | if (SCM_I_ARRAYP (vec)) |
757 | vec = SCM_I_ARRAY_V (vec); | |
4330ee25 | 758 | if (SCM_IS_UVEC (vec)) |
6e708ef2 MV |
759 | { |
760 | size_t size = uvec_sizes[SCM_UVEC_TYPE(vec)]; | |
761 | char *elts = SCM_UVEC_BASE (vec); | |
762 | return (void *) (elts + size*h->base); | |
763 | } | |
764 | scm_wrong_type_arg_msg (NULL, 0, h->array, "uniform array"); | |
b590aceb MV |
765 | } |
766 | ||
6e708ef2 MV |
767 | const void * |
768 | scm_uniform_vector_elements (SCM uvec, | |
769 | scm_t_array_handle *h, | |
770 | size_t *lenp, ssize_t *incp) | |
b590aceb | 771 | { |
6e708ef2 | 772 | return scm_uniform_vector_writable_elements (uvec, h, lenp, incp); |
b590aceb MV |
773 | } |
774 | ||
6e708ef2 MV |
775 | void * |
776 | scm_uniform_vector_writable_elements (SCM uvec, | |
777 | scm_t_array_handle *h, | |
778 | size_t *lenp, ssize_t *incp) | |
e0e49670 | 779 | { |
fea99690 | 780 | scm_generalized_vector_get_handle (uvec, h); |
6e708ef2 MV |
781 | if (lenp) |
782 | { | |
783 | scm_t_array_dim *dim = scm_array_handle_dims (h); | |
784 | *lenp = dim->ubnd - dim->lbnd + 1; | |
785 | *incp = dim->inc; | |
786 | } | |
787 | return scm_array_handle_uniform_writable_elements (h); | |
e0e49670 MV |
788 | } |
789 | ||
790 | SCM_DEFINE (scm_uniform_vector_length, "uniform-vector-length", 1, 0, 0, | |
791 | (SCM v), | |
811eb6d0 | 792 | "Return the number of elements in the uniform vector @var{v}.") |
e0e49670 MV |
793 | #define FUNC_NAME s_scm_uniform_vector_length |
794 | { | |
4330ee25 | 795 | return uvec_length (-1, v); |
e0e49670 MV |
796 | } |
797 | #undef FUNC_NAME | |
798 | ||
69730f92 MV |
799 | SCM_DEFINE (scm_uniform_vector_read_x, "uniform-vector-read!", 1, 3, 0, |
800 | (SCM uvec, SCM port_or_fd, SCM start, SCM end), | |
801 | "Fill the elements of @var{uvec} by reading\n" | |
802 | "raw bytes from @var{port-or-fdes}, using host byte order.\n\n" | |
803 | "The optional arguments @var{start} (inclusive) and @var{end}\n" | |
804 | "(exclusive) allow a specified region to be read,\n" | |
805 | "leaving the remainder of the vector unchanged.\n\n" | |
806 | "When @var{port-or-fdes} is a port, all specified elements\n" | |
807 | "of @var{uvec} are attempted to be read, potentially blocking\n" | |
808 | "while waiting formore input or end-of-file.\n" | |
809 | "When @var{port-or-fd} is an integer, a single call to\n" | |
810 | "read(2) is made.\n\n" | |
811 | "An error is signalled when the last element has only\n" | |
812 | "been partially filled before reaching end-of-file or in\n" | |
813 | "the single call to read(2).\n\n" | |
6e708ef2 MV |
814 | "@code{uniform-vector-read!} returns the number of elements\n" |
815 | "read.\n\n" | |
69730f92 MV |
816 | "@var{port-or-fdes} may be omitted, in which case it defaults\n" |
817 | "to the value returned by @code{(current-input-port)}.") | |
818 | #define FUNC_NAME s_scm_uniform_vector_read_x | |
819 | { | |
6e708ef2 | 820 | scm_t_array_handle handle; |
69730f92 | 821 | size_t vlen, sz, ans; |
6e708ef2 | 822 | ssize_t inc; |
69730f92 MV |
823 | size_t cstart, cend; |
824 | size_t remaining, off; | |
2b829bbb | 825 | char *base; |
69730f92 MV |
826 | |
827 | if (SCM_UNBNDP (port_or_fd)) | |
9de87eea | 828 | port_or_fd = scm_current_input_port (); |
69730f92 MV |
829 | else |
830 | SCM_ASSERT (scm_is_integer (port_or_fd) | |
831 | || (SCM_OPINPORTP (port_or_fd)), | |
832 | port_or_fd, SCM_ARG2, FUNC_NAME); | |
833 | ||
6e708ef2 MV |
834 | if (!scm_is_uniform_vector (uvec)) |
835 | scm_wrong_type_arg_msg (NULL, 0, uvec, "uniform vector"); | |
69730f92 | 836 | |
6e708ef2 | 837 | base = scm_uniform_vector_writable_elements (uvec, &handle, &vlen, &inc); |
fea99690 | 838 | sz = scm_array_handle_uniform_element_size (&handle); |
6e708ef2 MV |
839 | |
840 | if (inc != 1) | |
841 | { | |
842 | /* XXX - we should of course support non contiguous vectors. */ | |
843 | scm_misc_error (NULL, "only contiguous vectors are supported: ~a", | |
844 | scm_list_1 (uvec)); | |
845 | } | |
69730f92 MV |
846 | |
847 | cstart = 0; | |
848 | cend = vlen; | |
849 | if (!SCM_UNBNDP (start)) | |
850 | { | |
851 | cstart = scm_to_unsigned_integer (start, 0, vlen); | |
852 | if (!SCM_UNBNDP (end)) | |
853 | cend = scm_to_unsigned_integer (end, cstart, vlen); | |
854 | } | |
855 | ||
856 | remaining = (cend - cstart) * sz; | |
857 | off = cstart * sz; | |
858 | ||
859 | if (SCM_NIMP (port_or_fd)) | |
860 | { | |
69730f92 | 861 | ans = cend - cstart; |
b5cb4464 NJ |
862 | remaining -= scm_c_read (port_or_fd, base + off, remaining); |
863 | if (remaining % sz != 0) | |
864 | SCM_MISC_ERROR ("unexpected EOF", SCM_EOL); | |
865 | ans -= remaining / sz; | |
69730f92 MV |
866 | } |
867 | else /* file descriptor. */ | |
868 | { | |
869 | int fd = scm_to_int (port_or_fd); | |
870 | int n; | |
871 | ||
872 | SCM_SYSCALL (n = read (fd, base + off, remaining)); | |
873 | if (n == -1) | |
874 | SCM_SYSERROR; | |
875 | if (n % sz != 0) | |
876 | SCM_MISC_ERROR ("unexpected EOF", SCM_EOL); | |
877 | ans = n / sz; | |
878 | } | |
879 | ||
fea99690 MV |
880 | scm_array_handle_release (&handle); |
881 | ||
69730f92 MV |
882 | return scm_from_size_t (ans); |
883 | } | |
884 | #undef FUNC_NAME | |
885 | ||
886 | SCM_DEFINE (scm_uniform_vector_write, "uniform-vector-write", 1, 3, 0, | |
887 | (SCM uvec, SCM port_or_fd, SCM start, SCM end), | |
888 | "Write the elements of @var{uvec} as raw bytes to\n" | |
889 | "@var{port-or-fdes}, in the host byte order.\n\n" | |
890 | "The optional arguments @var{start} (inclusive)\n" | |
891 | "and @var{end} (exclusive) allow\n" | |
892 | "a specified region to be written.\n\n" | |
893 | "When @var{port-or-fdes} is a port, all specified elements\n" | |
894 | "of @var{uvec} are attempted to be written, potentially blocking\n" | |
895 | "while waiting for more room.\n" | |
896 | "When @var{port-or-fd} is an integer, a single call to\n" | |
897 | "write(2) is made.\n\n" | |
898 | "An error is signalled when the last element has only\n" | |
899 | "been partially written in the single call to write(2).\n\n" | |
900 | "The number of objects actually written is returned.\n" | |
901 | "@var{port-or-fdes} may be\n" | |
902 | "omitted, in which case it defaults to the value returned by\n" | |
903 | "@code{(current-output-port)}.") | |
904 | #define FUNC_NAME s_scm_uniform_vector_write | |
905 | { | |
6e708ef2 | 906 | scm_t_array_handle handle; |
69730f92 | 907 | size_t vlen, sz, ans; |
6e708ef2 | 908 | ssize_t inc; |
69730f92 MV |
909 | size_t cstart, cend; |
910 | size_t amount, off; | |
2b829bbb | 911 | const char *base; |
69730f92 MV |
912 | |
913 | port_or_fd = SCM_COERCE_OUTPORT (port_or_fd); | |
914 | ||
915 | if (SCM_UNBNDP (port_or_fd)) | |
9de87eea | 916 | port_or_fd = scm_current_output_port (); |
69730f92 MV |
917 | else |
918 | SCM_ASSERT (scm_is_integer (port_or_fd) | |
919 | || (SCM_OPOUTPORTP (port_or_fd)), | |
920 | port_or_fd, SCM_ARG2, FUNC_NAME); | |
921 | ||
6e708ef2 | 922 | base = scm_uniform_vector_elements (uvec, &handle, &vlen, &inc); |
fea99690 | 923 | sz = scm_array_handle_uniform_element_size (&handle); |
6e708ef2 MV |
924 | |
925 | if (inc != 1) | |
926 | { | |
927 | /* XXX - we should of course support non contiguous vectors. */ | |
928 | scm_misc_error (NULL, "only contiguous vectors are supported: ~a", | |
929 | scm_list_1 (uvec)); | |
930 | } | |
69730f92 MV |
931 | |
932 | cstart = 0; | |
933 | cend = vlen; | |
934 | if (!SCM_UNBNDP (start)) | |
935 | { | |
936 | cstart = scm_to_unsigned_integer (start, 0, vlen); | |
937 | if (!SCM_UNBNDP (end)) | |
938 | cend = scm_to_unsigned_integer (end, cstart, vlen); | |
939 | } | |
940 | ||
941 | amount = (cend - cstart) * sz; | |
942 | off = cstart * sz; | |
943 | ||
944 | if (SCM_NIMP (port_or_fd)) | |
945 | { | |
946 | scm_lfwrite (base + off, amount, port_or_fd); | |
947 | ans = cend - cstart; | |
948 | } | |
949 | else /* file descriptor. */ | |
950 | { | |
951 | int fd = scm_to_int (port_or_fd), n; | |
952 | SCM_SYSCALL (n = write (fd, base + off, amount)); | |
953 | if (n == -1) | |
954 | SCM_SYSERROR; | |
955 | if (n % sz != 0) | |
956 | SCM_MISC_ERROR ("last element only written partially", SCM_EOL); | |
957 | ans = n / sz; | |
958 | } | |
959 | ||
fea99690 MV |
960 | scm_array_handle_release (&handle); |
961 | ||
69730f92 MV |
962 | return scm_from_size_t (ans); |
963 | } | |
964 | #undef FUNC_NAME | |
965 | ||
f8579182 MV |
966 | /* ================================================================ */ |
967 | /* Exported procedures. */ | |
968 | /* ================================================================ */ | |
969 | ||
e0e49670 MV |
970 | #define TYPE SCM_UVEC_U8 |
971 | #define TAG u8 | |
972 | #define CTYPE scm_t_uint8 | |
f8579182 MV |
973 | #include "libguile/srfi-4.i.c" |
974 | ||
e0e49670 MV |
975 | #define TYPE SCM_UVEC_S8 |
976 | #define TAG s8 | |
977 | #define CTYPE scm_t_int8 | |
f8579182 MV |
978 | #include "libguile/srfi-4.i.c" |
979 | ||
e0e49670 MV |
980 | #define TYPE SCM_UVEC_U16 |
981 | #define TAG u16 | |
982 | #define CTYPE scm_t_uint16 | |
f8579182 MV |
983 | #include "libguile/srfi-4.i.c" |
984 | ||
e0e49670 MV |
985 | #define TYPE SCM_UVEC_S16 |
986 | #define TAG s16 | |
987 | #define CTYPE scm_t_int16 | |
f8579182 MV |
988 | #include "libguile/srfi-4.i.c" |
989 | ||
e0e49670 MV |
990 | #define TYPE SCM_UVEC_U32 |
991 | #define TAG u32 | |
992 | #define CTYPE scm_t_uint32 | |
f8579182 MV |
993 | #include "libguile/srfi-4.i.c" |
994 | ||
e0e49670 MV |
995 | #define TYPE SCM_UVEC_S32 |
996 | #define TAG s32 | |
997 | #define CTYPE scm_t_int32 | |
f8579182 MV |
998 | #include "libguile/srfi-4.i.c" |
999 | ||
e0e49670 MV |
1000 | #define TYPE SCM_UVEC_U64 |
1001 | #define TAG u64 | |
00c17d45 | 1002 | #if SCM_HAVE_T_UINT64 |
e0e49670 | 1003 | #define CTYPE scm_t_uint64 |
00c17d45 | 1004 | #endif |
f8579182 MV |
1005 | #include "libguile/srfi-4.i.c" |
1006 | ||
e0e49670 MV |
1007 | #define TYPE SCM_UVEC_S64 |
1008 | #define TAG s64 | |
00c17d45 | 1009 | #if SCM_HAVE_T_INT64 |
e0e49670 | 1010 | #define CTYPE scm_t_int64 |
00c17d45 | 1011 | #endif |
f8579182 MV |
1012 | #include "libguile/srfi-4.i.c" |
1013 | ||
e0e49670 MV |
1014 | #define TYPE SCM_UVEC_F32 |
1015 | #define TAG f32 | |
1016 | #define CTYPE float | |
f8579182 MV |
1017 | #include "libguile/srfi-4.i.c" |
1018 | ||
e0e49670 MV |
1019 | #define TYPE SCM_UVEC_F64 |
1020 | #define TAG f64 | |
1021 | #define CTYPE double | |
f8579182 MV |
1022 | #include "libguile/srfi-4.i.c" |
1023 | ||
cbdc8379 MV |
1024 | #define TYPE SCM_UVEC_C32 |
1025 | #define TAG c32 | |
1026 | #define CTYPE float | |
1027 | #include "libguile/srfi-4.i.c" | |
1028 | ||
1029 | #define TYPE SCM_UVEC_C64 | |
1030 | #define TAG c64 | |
1031 | #define CTYPE double | |
1032 | #include "libguile/srfi-4.i.c" | |
1033 | ||
4ea4bc4c MV |
1034 | static scm_i_t_array_ref uvec_reffers[12] = { |
1035 | u8ref, s8ref, | |
1036 | u16ref, s16ref, | |
1037 | u32ref, s32ref, | |
1038 | u64ref, s64ref, | |
1039 | f32ref, f64ref, | |
1040 | c32ref, c64ref | |
1041 | }; | |
1042 | ||
1043 | static scm_i_t_array_set uvec_setters[12] = { | |
1044 | u8set, s8set, | |
1045 | u16set, s16set, | |
1046 | u32set, s32set, | |
1047 | u64set, s64set, | |
1048 | f32set, f64set, | |
1049 | c32set, c64set | |
1050 | }; | |
1051 | ||
1052 | scm_i_t_array_ref | |
1053 | scm_i_uniform_vector_ref_proc (SCM uvec) | |
1054 | { | |
1055 | return uvec_reffers[SCM_UVEC_TYPE(uvec)]; | |
1056 | } | |
1057 | ||
1058 | scm_i_t_array_set | |
1059 | scm_i_uniform_vector_set_proc (SCM uvec) | |
1060 | { | |
1061 | return uvec_setters[SCM_UVEC_TYPE(uvec)]; | |
1062 | } | |
1063 | ||
f8579182 MV |
1064 | void |
1065 | scm_init_srfi_4 (void) | |
1066 | { | |
1067 | scm_tc16_uvec = scm_make_smob_type ("uvec", 0); | |
1068 | scm_set_smob_equalp (scm_tc16_uvec, uvec_equalp); | |
f8579182 | 1069 | scm_set_smob_print (scm_tc16_uvec, uvec_print); |
f301dbf3 | 1070 | |
00c17d45 MV |
1071 | #if SCM_HAVE_T_INT64 == 0 |
1072 | scm_uint64_min = | |
1073 | scm_permanent_object (scm_from_int (0)); | |
1074 | scm_uint64_max = | |
1075 | scm_permanent_object (scm_c_read_string ("18446744073709551615")); | |
1076 | scm_int64_min = | |
1077 | scm_permanent_object (scm_c_read_string ("-9223372036854775808")); | |
1078 | scm_int64_max = | |
1079 | scm_permanent_object (scm_c_read_string ("9223372036854775807")); | |
1080 | #endif | |
1081 | ||
f8579182 | 1082 | #include "libguile/srfi-4.x" |
cbdc8379 | 1083 | |
f8579182 MV |
1084 | } |
1085 | ||
1086 | /* End of srfi-4.c. */ |