| 1 | /* srfi-4.c --- Uniform numeric vector datatypes. |
| 2 | * |
| 3 | * Copyright (C) 2001, 2004, 2006 Free Software Foundation, Inc. |
| 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 |
| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | #ifdef HAVE_CONFIG_H |
| 21 | # include <config.h> |
| 22 | #endif |
| 23 | |
| 24 | #include <string.h> |
| 25 | #include <errno.h> |
| 26 | #include <stdio.h> |
| 27 | |
| 28 | #include "libguile/_scm.h" |
| 29 | #include "libguile/__scm.h" |
| 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" |
| 35 | #include "libguile/vectors.h" |
| 36 | #include "libguile/unif.h" |
| 37 | #include "libguile/strings.h" |
| 38 | #include "libguile/strports.h" |
| 39 | #include "libguile/dynwind.h" |
| 40 | #include "libguile/deprecation.h" |
| 41 | |
| 42 | #ifdef HAVE_UNISTD_H |
| 43 | #include <unistd.h> |
| 44 | #endif |
| 45 | |
| 46 | #ifdef HAVE_IO_H |
| 47 | #include <io.h> |
| 48 | #endif |
| 49 | |
| 50 | /* Smob type code for uniform numeric vectors. */ |
| 51 | int scm_tc16_uvec = 0; |
| 52 | |
| 53 | #define SCM_IS_UVEC(obj) SCM_SMOB_PREDICATE (scm_tc16_uvec, (obj)) |
| 54 | |
| 55 | /* Accessor macros for the three components of a uniform numeric |
| 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 | |
| 66 | /* Symbolic constants encoding the various types of uniform |
| 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 |
| 78 | #define SCM_UVEC_C32 10 |
| 79 | #define SCM_UVEC_C64 11 |
| 80 | |
| 81 | |
| 82 | /* This array maps type tags to the size of the elements. */ |
| 83 | static const int uvec_sizes[12] = { |
| 84 | 1, 1, |
| 85 | 2, 2, |
| 86 | 4, 4, |
| 87 | #if SCM_HAVE_T_INT64 |
| 88 | 8, 8, |
| 89 | #else |
| 90 | sizeof (SCM), sizeof (SCM), |
| 91 | #endif |
| 92 | sizeof(float), sizeof(double), |
| 93 | 2*sizeof(float), 2*sizeof(double) |
| 94 | }; |
| 95 | |
| 96 | static const char *uvec_tags[12] = { |
| 97 | "u8", "s8", |
| 98 | "u16", "s16", |
| 99 | "u32", "s32", |
| 100 | "u64", "s64", |
| 101 | "f32", "f64", |
| 102 | "c32", "c64", |
| 103 | }; |
| 104 | |
| 105 | static const char *uvec_names[12] = { |
| 106 | "u8vector", "s8vector", |
| 107 | "u16vector", "s16vector", |
| 108 | "u32vector", "s32vector", |
| 109 | "u64vector", "s64vector", |
| 110 | "f32vector", "f64vector", |
| 111 | "c32vector", "c64vector" |
| 112 | }; |
| 113 | |
| 114 | /* ================================================================ */ |
| 115 | /* SMOB procedures. */ |
| 116 | /* ================================================================ */ |
| 117 | |
| 118 | |
| 119 | /* Smob print hook for uniform vectors. */ |
| 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; |
| 136 | SCM *fake_64; |
| 137 | } np; |
| 138 | |
| 139 | size_t i = 0; |
| 140 | const size_t uvlen = SCM_UVEC_LENGTH (uvec); |
| 141 | void *uptr = SCM_UVEC_BASE (uvec); |
| 142 | |
| 143 | switch (SCM_UVEC_TYPE (uvec)) |
| 144 | { |
| 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; |
| 151 | #if SCM_HAVE_T_INT64 |
| 152 | case SCM_UVEC_U64: np.u64 = (scm_t_uint64 *) uptr; break; |
| 153 | case SCM_UVEC_S64: np.s64 = (scm_t_int64 *) uptr; break; |
| 154 | #else |
| 155 | case SCM_UVEC_U64: |
| 156 | case SCM_UVEC_S64: np.fake_64 = (SCM *) uptr; break; |
| 157 | #endif |
| 158 | case SCM_UVEC_F32: np.f32 = (float *) uptr; break; |
| 159 | case SCM_UVEC_F64: np.f64 = (double *) uptr; break; |
| 160 | case SCM_UVEC_C32: np.f32 = (float *) uptr; break; |
| 161 | case SCM_UVEC_C64: np.f64 = (double *) uptr; break; |
| 162 | default: |
| 163 | abort (); /* Sanity check. */ |
| 164 | break; |
| 165 | } |
| 166 | |
| 167 | scm_putc ('#', port); |
| 168 | scm_puts (uvec_tags [SCM_UVEC_TYPE (uvec)], port); |
| 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; |
| 185 | #else |
| 186 | case SCM_UVEC_U64: |
| 187 | case SCM_UVEC_S64: scm_iprin1 (*np.fake_64, port, pstate); |
| 188 | np.fake_64++; break; |
| 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; |
| 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; |
| 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 | |
| 211 | const char * |
| 212 | scm_i_uniform_vector_tag (SCM uvec) |
| 213 | { |
| 214 | return uvec_tags[SCM_UVEC_TYPE (uvec)]; |
| 215 | } |
| 216 | |
| 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; |
| 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 |
| 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 | |
| 247 | |
| 248 | /* ================================================================ */ |
| 249 | /* Utility procedures. */ |
| 250 | /* ================================================================ */ |
| 251 | |
| 252 | static SCM_C_INLINE_KEYWORD int |
| 253 | is_uvec (int type, SCM obj) |
| 254 | { |
| 255 | if (SCM_IS_UVEC (obj)) |
| 256 | return SCM_UVEC_TYPE (obj) == type; |
| 257 | if (SCM_I_ARRAYP (obj) && SCM_I_ARRAY_NDIM (obj) == 1) |
| 258 | { |
| 259 | SCM v = SCM_I_ARRAY_V (obj); |
| 260 | return SCM_IS_UVEC (v) && SCM_UVEC_TYPE (v) == type; |
| 261 | } |
| 262 | return 0; |
| 263 | } |
| 264 | |
| 265 | static SCM_C_INLINE_KEYWORD SCM |
| 266 | uvec_p (int type, SCM obj) |
| 267 | { |
| 268 | return scm_from_bool (is_uvec (type, obj)); |
| 269 | } |
| 270 | |
| 271 | static SCM_C_INLINE_KEYWORD void |
| 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 | |
| 278 | static SCM |
| 279 | take_uvec (int type, void *base, size_t len) |
| 280 | { |
| 281 | SCM_RETURN_NEWSMOB3 (scm_tc16_uvec, type, len, (scm_t_bits) base); |
| 282 | } |
| 283 | |
| 284 | /* Create a new, uninitialized uniform numeric vector of type TYPE |
| 285 | with space for LEN elements. */ |
| 286 | static SCM |
| 287 | alloc_uvec (int type, size_t len) |
| 288 | { |
| 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]); |
| 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 |
| 302 | return take_uvec (type, base, len); |
| 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 | |
| 309 | static SCM_C_INLINE_KEYWORD SCM |
| 310 | uvec_fast_ref (int type, const void *base, size_t c_idx) |
| 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]); |
| 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]; |
| 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]); |
| 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]); |
| 345 | else |
| 346 | return SCM_BOOL_F; |
| 347 | } |
| 348 | |
| 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 | |
| 365 | static SCM_C_INLINE_KEYWORD void |
| 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); |
| 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 | } |
| 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); |
| 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 | } |
| 411 | } |
| 412 | |
| 413 | static SCM_C_INLINE_KEYWORD SCM |
| 414 | make_uvec (int type, SCM len, SCM fill) |
| 415 | { |
| 416 | size_t c_len = scm_to_size_t (len); |
| 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 | |
| 428 | static SCM_C_INLINE_KEYWORD void * |
| 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; |
| 435 | if (SCM_I_ARRAYP (v)) |
| 436 | v = SCM_I_ARRAY_V (v); |
| 437 | uvec_assert (type, v); |
| 438 | } |
| 439 | |
| 440 | return scm_uniform_vector_writable_elements (uvec, handle, lenp, incp); |
| 441 | } |
| 442 | |
| 443 | static SCM_C_INLINE_KEYWORD const void * |
| 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 | |
| 450 | static int |
| 451 | uvec_type (scm_t_array_handle *h) |
| 452 | { |
| 453 | SCM v = h->array; |
| 454 | if (SCM_I_ARRAYP (v)) |
| 455 | v = SCM_I_ARRAY_V (v); |
| 456 | return SCM_UVEC_TYPE (v); |
| 457 | } |
| 458 | |
| 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; |
| 472 | res = scm_cons (scm_array_handle_ref (&handle, i), res); |
| 473 | } |
| 474 | scm_array_handle_release (&handle); |
| 475 | return res; |
| 476 | } |
| 477 | |
| 478 | static SCM_C_INLINE_KEYWORD SCM |
| 479 | uvec_length (int type, SCM uvec) |
| 480 | { |
| 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); |
| 487 | } |
| 488 | |
| 489 | static SCM_C_INLINE_KEYWORD SCM |
| 490 | uvec_ref (int type, SCM uvec, SCM idx) |
| 491 | { |
| 492 | scm_t_array_handle handle; |
| 493 | size_t i, len; |
| 494 | ssize_t inc; |
| 495 | const void *elts; |
| 496 | SCM res; |
| 497 | |
| 498 | elts = uvec_elements (type, uvec, &handle, &len, &inc); |
| 499 | if (type < 0) |
| 500 | type = uvec_type (&handle); |
| 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); |
| 504 | return res; |
| 505 | } |
| 506 | |
| 507 | static SCM_C_INLINE_KEYWORD SCM |
| 508 | uvec_set_x (int type, SCM uvec, SCM idx, SCM val) |
| 509 | { |
| 510 | scm_t_array_handle handle; |
| 511 | size_t i, len; |
| 512 | ssize_t inc; |
| 513 | void *elts; |
| 514 | |
| 515 | elts = uvec_writable_elements (type, uvec, &handle, &len, &inc); |
| 516 | if (type < 0) |
| 517 | type = uvec_type (&handle); |
| 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); |
| 521 | return SCM_UNSPECIFIED; |
| 522 | } |
| 523 | |
| 524 | static SCM_C_INLINE_KEYWORD SCM |
| 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 | |
| 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); |
| 553 | else if (scm_is_generalized_vector (obj)) |
| 554 | { |
| 555 | scm_t_array_handle handle; |
| 556 | size_t len = scm_c_generalized_vector_length (obj), i; |
| 557 | SCM uvec = alloc_uvec (type, len); |
| 558 | scm_array_get_handle (uvec, &handle); |
| 559 | for (i = 0; i < len; i++) |
| 560 | scm_array_handle_set (&handle, i, |
| 561 | scm_c_generalized_vector_ref (obj, i)); |
| 562 | scm_array_handle_release (&handle); |
| 563 | return uvec; |
| 564 | } |
| 565 | else |
| 566 | scm_wrong_type_arg_msg (NULL, 0, obj, "list or generalized vector"); |
| 567 | } |
| 568 | |
| 569 | SCM_SYMBOL (scm_sym_a, "a"); |
| 570 | SCM_SYMBOL (scm_sym_b, "b"); |
| 571 | |
| 572 | SCM |
| 573 | scm_i_generalized_vector_type (SCM v) |
| 574 | { |
| 575 | if (scm_is_vector (v)) |
| 576 | return SCM_BOOL_T; |
| 577 | else if (scm_is_string (v)) |
| 578 | return scm_sym_a; |
| 579 | else if (scm_is_bitvector (v)) |
| 580 | return scm_sym_b; |
| 581 | else if (scm_is_uniform_vector (v)) |
| 582 | return scm_from_locale_symbol (uvec_tags[SCM_UVEC_TYPE(v)]); |
| 583 | else |
| 584 | return SCM_BOOL_F; |
| 585 | } |
| 586 | |
| 587 | int |
| 588 | scm_is_uniform_vector (SCM obj) |
| 589 | { |
| 590 | if (SCM_IS_UVEC (obj)) |
| 591 | return 1; |
| 592 | if (SCM_I_ARRAYP (obj) && SCM_I_ARRAY_NDIM (obj) == 1) |
| 593 | { |
| 594 | SCM v = SCM_I_ARRAY_V (obj); |
| 595 | return SCM_IS_UVEC (v); |
| 596 | } |
| 597 | return 0; |
| 598 | } |
| 599 | |
| 600 | size_t |
| 601 | scm_c_uniform_vector_length (SCM uvec) |
| 602 | { |
| 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); |
| 610 | else |
| 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 | } |
| 619 | } |
| 620 | |
| 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 | |
| 630 | SCM |
| 631 | scm_c_uniform_vector_ref (SCM v, size_t idx) |
| 632 | { |
| 633 | scm_t_array_handle handle; |
| 634 | size_t len; |
| 635 | ssize_t inc; |
| 636 | SCM res; |
| 637 | |
| 638 | uvec_elements (-1, v, &handle, &len, &inc); |
| 639 | if (idx >= len) |
| 640 | scm_out_of_range (NULL, scm_from_size_t (idx)); |
| 641 | res = scm_array_handle_ref (&handle, idx*inc); |
| 642 | scm_array_handle_release (&handle); |
| 643 | return res; |
| 644 | } |
| 645 | |
| 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 | { |
| 652 | #if SCM_ENABLE_DEPRECATED |
| 653 | /* Support old argument convention. |
| 654 | */ |
| 655 | if (scm_is_pair (idx)) |
| 656 | { |
| 657 | scm_c_issue_deprecation_warning |
| 658 | ("Using a list as the index to uniform-vector-ref is deprecated."); |
| 659 | if (!scm_is_null (SCM_CDR (idx))) |
| 660 | scm_wrong_num_args (NULL); |
| 661 | idx = SCM_CAR (idx); |
| 662 | } |
| 663 | #endif |
| 664 | |
| 665 | return scm_c_uniform_vector_ref (v, scm_to_size_t (idx)); |
| 666 | } |
| 667 | #undef FUNC_NAME |
| 668 | |
| 669 | void |
| 670 | scm_c_uniform_vector_set_x (SCM v, size_t idx, SCM val) |
| 671 | { |
| 672 | scm_t_array_handle handle; |
| 673 | size_t len; |
| 674 | ssize_t inc; |
| 675 | |
| 676 | uvec_writable_elements (-1, v, &handle, &len, &inc); |
| 677 | if (idx >= len) |
| 678 | scm_out_of_range (NULL, scm_from_size_t (idx)); |
| 679 | scm_array_handle_set (&handle, idx*inc, val); |
| 680 | scm_array_handle_release (&handle); |
| 681 | } |
| 682 | |
| 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 | { |
| 689 | #if SCM_ENABLE_DEPRECATED |
| 690 | /* Support old argument convention. |
| 691 | */ |
| 692 | if (scm_is_pair (idx)) |
| 693 | { |
| 694 | scm_c_issue_deprecation_warning |
| 695 | ("Using a list as the index to uniform-vector-set! is deprecated."); |
| 696 | if (!scm_is_null (SCM_CDR (idx))) |
| 697 | scm_wrong_num_args (NULL); |
| 698 | idx = SCM_CAR (idx); |
| 699 | } |
| 700 | #endif |
| 701 | |
| 702 | scm_c_uniform_vector_set_x (v, scm_to_size_t (idx), val); |
| 703 | return SCM_UNSPECIFIED; |
| 704 | } |
| 705 | #undef FUNC_NAME |
| 706 | |
| 707 | SCM_DEFINE (scm_uniform_vector_to_list, "uniform-vector->list", 1, 0, 0, |
| 708 | (SCM uvec), |
| 709 | "Convert the uniform numeric vector @var{uvec} to a list.") |
| 710 | #define FUNC_NAME s_scm_uniform_vector_to_list |
| 711 | { |
| 712 | return uvec_to_list (-1, uvec); |
| 713 | } |
| 714 | #undef FUNC_NAME |
| 715 | |
| 716 | size_t |
| 717 | scm_array_handle_uniform_element_size (scm_t_array_handle *h) |
| 718 | { |
| 719 | SCM vec = h->array; |
| 720 | if (SCM_I_ARRAYP (vec)) |
| 721 | vec = SCM_I_ARRAY_V (vec); |
| 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"); |
| 725 | } |
| 726 | |
| 727 | #if SCM_ENABLE_DEPRECATED |
| 728 | |
| 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) |
| 733 | { |
| 734 | scm_c_issue_deprecation_warning |
| 735 | ("scm_uniform_element_size is deprecated. " |
| 736 | "Use scm_array_handle_uniform_element_size instead."); |
| 737 | |
| 738 | if (SCM_IS_UVEC (obj)) |
| 739 | return uvec_sizes[SCM_UVEC_TYPE(obj)]; |
| 740 | else |
| 741 | return 0; |
| 742 | } |
| 743 | |
| 744 | #endif |
| 745 | |
| 746 | const void * |
| 747 | scm_array_handle_uniform_elements (scm_t_array_handle *h) |
| 748 | { |
| 749 | return scm_array_handle_uniform_writable_elements (h); |
| 750 | } |
| 751 | |
| 752 | void * |
| 753 | scm_array_handle_uniform_writable_elements (scm_t_array_handle *h) |
| 754 | { |
| 755 | SCM vec = h->array; |
| 756 | if (SCM_I_ARRAYP (vec)) |
| 757 | vec = SCM_I_ARRAY_V (vec); |
| 758 | if (SCM_IS_UVEC (vec)) |
| 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"); |
| 765 | } |
| 766 | |
| 767 | const void * |
| 768 | scm_uniform_vector_elements (SCM uvec, |
| 769 | scm_t_array_handle *h, |
| 770 | size_t *lenp, ssize_t *incp) |
| 771 | { |
| 772 | return scm_uniform_vector_writable_elements (uvec, h, lenp, incp); |
| 773 | } |
| 774 | |
| 775 | void * |
| 776 | scm_uniform_vector_writable_elements (SCM uvec, |
| 777 | scm_t_array_handle *h, |
| 778 | size_t *lenp, ssize_t *incp) |
| 779 | { |
| 780 | scm_generalized_vector_get_handle (uvec, h); |
| 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); |
| 788 | } |
| 789 | |
| 790 | SCM_DEFINE (scm_uniform_vector_length, "uniform-vector-length", 1, 0, 0, |
| 791 | (SCM v), |
| 792 | "Return the number of elements in the uniform vector @var{v}.") |
| 793 | #define FUNC_NAME s_scm_uniform_vector_length |
| 794 | { |
| 795 | return uvec_length (-1, v); |
| 796 | } |
| 797 | #undef FUNC_NAME |
| 798 | |
| 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" |
| 814 | "@code{uniform-vector-read!} returns the number of elements\n" |
| 815 | "read.\n\n" |
| 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 | { |
| 820 | scm_t_array_handle handle; |
| 821 | size_t vlen, sz, ans; |
| 822 | ssize_t inc; |
| 823 | size_t cstart, cend; |
| 824 | size_t remaining, off; |
| 825 | char *base; |
| 826 | |
| 827 | if (SCM_UNBNDP (port_or_fd)) |
| 828 | port_or_fd = scm_current_input_port (); |
| 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 | |
| 834 | if (!scm_is_uniform_vector (uvec)) |
| 835 | scm_wrong_type_arg_msg (NULL, 0, uvec, "uniform vector"); |
| 836 | |
| 837 | base = scm_uniform_vector_writable_elements (uvec, &handle, &vlen, &inc); |
| 838 | sz = scm_array_handle_uniform_element_size (&handle); |
| 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 | } |
| 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 | { |
| 861 | ans = cend - cstart; |
| 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; |
| 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 | |
| 880 | scm_array_handle_release (&handle); |
| 881 | |
| 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 | { |
| 906 | scm_t_array_handle handle; |
| 907 | size_t vlen, sz, ans; |
| 908 | ssize_t inc; |
| 909 | size_t cstart, cend; |
| 910 | size_t amount, off; |
| 911 | const char *base; |
| 912 | |
| 913 | port_or_fd = SCM_COERCE_OUTPORT (port_or_fd); |
| 914 | |
| 915 | if (SCM_UNBNDP (port_or_fd)) |
| 916 | port_or_fd = scm_current_output_port (); |
| 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 | |
| 922 | base = scm_uniform_vector_elements (uvec, &handle, &vlen, &inc); |
| 923 | sz = scm_array_handle_uniform_element_size (&handle); |
| 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 | } |
| 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 | |
| 960 | scm_array_handle_release (&handle); |
| 961 | |
| 962 | return scm_from_size_t (ans); |
| 963 | } |
| 964 | #undef FUNC_NAME |
| 965 | |
| 966 | /* ================================================================ */ |
| 967 | /* Exported procedures. */ |
| 968 | /* ================================================================ */ |
| 969 | |
| 970 | #define TYPE SCM_UVEC_U8 |
| 971 | #define TAG u8 |
| 972 | #define CTYPE scm_t_uint8 |
| 973 | #include "libguile/srfi-4.i.c" |
| 974 | |
| 975 | #define TYPE SCM_UVEC_S8 |
| 976 | #define TAG s8 |
| 977 | #define CTYPE scm_t_int8 |
| 978 | #include "libguile/srfi-4.i.c" |
| 979 | |
| 980 | #define TYPE SCM_UVEC_U16 |
| 981 | #define TAG u16 |
| 982 | #define CTYPE scm_t_uint16 |
| 983 | #include "libguile/srfi-4.i.c" |
| 984 | |
| 985 | #define TYPE SCM_UVEC_S16 |
| 986 | #define TAG s16 |
| 987 | #define CTYPE scm_t_int16 |
| 988 | #include "libguile/srfi-4.i.c" |
| 989 | |
| 990 | #define TYPE SCM_UVEC_U32 |
| 991 | #define TAG u32 |
| 992 | #define CTYPE scm_t_uint32 |
| 993 | #include "libguile/srfi-4.i.c" |
| 994 | |
| 995 | #define TYPE SCM_UVEC_S32 |
| 996 | #define TAG s32 |
| 997 | #define CTYPE scm_t_int32 |
| 998 | #include "libguile/srfi-4.i.c" |
| 999 | |
| 1000 | #define TYPE SCM_UVEC_U64 |
| 1001 | #define TAG u64 |
| 1002 | #if SCM_HAVE_T_UINT64 |
| 1003 | #define CTYPE scm_t_uint64 |
| 1004 | #endif |
| 1005 | #include "libguile/srfi-4.i.c" |
| 1006 | |
| 1007 | #define TYPE SCM_UVEC_S64 |
| 1008 | #define TAG s64 |
| 1009 | #if SCM_HAVE_T_INT64 |
| 1010 | #define CTYPE scm_t_int64 |
| 1011 | #endif |
| 1012 | #include "libguile/srfi-4.i.c" |
| 1013 | |
| 1014 | #define TYPE SCM_UVEC_F32 |
| 1015 | #define TAG f32 |
| 1016 | #define CTYPE float |
| 1017 | #include "libguile/srfi-4.i.c" |
| 1018 | |
| 1019 | #define TYPE SCM_UVEC_F64 |
| 1020 | #define TAG f64 |
| 1021 | #define CTYPE double |
| 1022 | #include "libguile/srfi-4.i.c" |
| 1023 | |
| 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 | |
| 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 | |
| 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); |
| 1069 | scm_set_smob_print (scm_tc16_uvec, uvec_print); |
| 1070 | |
| 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 | |
| 1082 | #include "libguile/srfi-4.x" |
| 1083 | |
| 1084 | } |
| 1085 | |
| 1086 | /* End of srfi-4.c. */ |