libguile/gsubr.c

   1 /* Copyright (C) 1995-2001, 2006, 2008-2011,
   2  *   2014 Free Software Foundation, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   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.
   8  *
   9  * This library is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  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
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301 USA
  18  */
  19
  20 \f
  21 #ifdef HAVE_CONFIG_H
  22 # include <config.h>
  23 #endif
  24
  25 #include <stdio.h>
  26 #include <stdarg.h>
  27
  28 #include "libguile/_scm.h"
  29 #include "libguile/gsubr.h"
  30 #include "libguile/foreign.h"
  31 #include "libguile/instructions.h"
  32 #include "libguile/objcodes.h"
  33 #include "libguile/srfi-4.h"
  34 #include "libguile/programs.h"
  35
  36 #include "libguile/private-options.h"
  37 \f
  38 /*
  39  * gsubr.c
  40  * Provide `gsubrs' -- subrs taking a prescribed number of required, optional,
  41  * and rest arguments.
  42  */
  43
  44 /* #define GSUBR_TEST */
  45
  46 \f
  47
  48 /* OK here goes nothing: we're going to define VM assembly trampolines for
  49    invoking subrs, along with their meta-information, and then wrap them into
  50    statically allocated objcode values. Ready? Right!
  51 */
  52
  53 /* There's a maximum of 10 args, so the number of possible combinations is:
  54    (REQ-OPT-REST)
  55    for 0 args: 1 (000) (1 + 0)
  56    for 1 arg: 3 (100, 010, 001) (2 + 1)
  57    for 2 args: 5 (200, 110, 020, 101, 011) (3 + 2)
  58    for 3 args: 7 (300, 210, 120, 030, 201, 111, 021) (4 + 3)
  59    for N args: 2N+1
  60
  61    and the index at which N args starts:
  62    for 0 args: 0
  63    for 1 args: 1
  64    for 2 args: 4
  65    for 3 args: 9
  66    for N args: N^2
  67
  68    One can prove this:
  69
  70    (1 + 3 + 5 + ... + (2N+1))
  71      = ((2N+1)+1)/2 * (N+1)
  72      = 2(N+1)/2 * (N+1)
  73      = (N+1)^2
  74
  75    Thus the total sum is 11^2 = 121. Let's just generate all of them as
  76    read-only data.
  77 */
  78
  79 #ifdef WORDS_BIGENDIAN
  80 #define OBJCODE_HEADER 0, 0, 0, 16, 0, 0, 0, 40
  81 #define META_HEADER    0, 0, 0, 32, 0, 0, 0, 0
  82 #else
  83 #define OBJCODE_HEADER 16, 0, 0, 0, 40, 0, 0, 0
  84 #define META_HEADER    32, 0, 0, 0, 0, 0, 0, 0
  85 #endif
  86
  87 /* A: req; B: opt; C: rest */
  88 #define A(nreq)                                                         \
  89   OBJCODE_HEADER,                                                       \
  90   /* 0 */ scm_op_assert_nargs_ee, 0, nreq, /* assert number of args */  \
  91   /* 3 */ scm_op_object_ref, 0, /* push the foreign object wrapping the subr pointer */ \
  92   /* 5 */ scm_op_subr_call, nreq, /* and call (will return value as well) */ \
  93   /* 7 */ scm_op_nop,                                                   \
  94   /* 8 */ scm_op_nop, scm_op_nop, scm_op_nop, scm_op_nop,               \
  95   /* 12 */ scm_op_nop, scm_op_nop, scm_op_nop, scm_op_nop,              \
  96   /* 16 */ META (3, 7, nreq, 0, 0)
  97
  98 #define B(nopt)                                                         \
  99   OBJCODE_HEADER,                                                       \
 100   /* 0 */ scm_op_bind_optionals, 0, nopt, /* bind optionals */          \
 101   /* 3 */ scm_op_assert_nargs_ee, 0, nopt, /* assert number of args */  \
 102   /* 6 */ scm_op_object_ref, 0, /* push the foreign object wrapping the subr pointer */ \
 103   /* 8 */ scm_op_subr_call, nopt, /* and call (will return value as well) */ \
 104   /* 10 */ scm_op_nop, scm_op_nop,                                      \
 105   /* 12 */ scm_op_nop, scm_op_nop, scm_op_nop, scm_op_nop,              \
 106   /* 16 */ META (6, 10, 0, nopt, 0)
 107
 108 #define C()                                                             \
 109   OBJCODE_HEADER,                                                       \
 110   /* 0 */ scm_op_push_rest, 0, 0, /* cons all args into a list */       \
 111   /* 3 */ scm_op_object_ref, 0, /* push the foreign object wrapping the subr pointer */ \
 112   /* 5 */ scm_op_subr_call, 1, /* and call (will return value as well) */ \
 113   /* 7 */ scm_op_nop,                                                   \
 114   /* 8 */ scm_op_nop, scm_op_nop, scm_op_nop, scm_op_nop,               \
 115   /* 12 */ scm_op_nop, scm_op_nop, scm_op_nop, scm_op_nop,              \
 116   /* 16 */ META (3, 7, 0, 0, 1)
 117
 118 #define AB(nreq, nopt)                                                  \
 119   OBJCODE_HEADER,                                                       \
 120   /* 0 */ scm_op_assert_nargs_ge, 0, nreq, /* assert number of args */  \
 121   /* 3 */ scm_op_bind_optionals, 0, nreq+nopt, /* bind optionals */     \
 122   /* 6 */ scm_op_assert_nargs_ee, 0, nreq+nopt, /* assert number of args */ \
 123   /* 9 */ scm_op_object_ref, 0, /* push the foreign object wrapping the subr pointer */ \
 124   /* 11 */ scm_op_subr_call, nreq+nopt, /* and call (will return value as well) */ \
 125   /* 13 */ scm_op_nop, scm_op_nop, scm_op_nop,                          \
 126   /* 16 */ META (9, 13, nreq, nopt, 0)
 127
 128 #define AC(nreq)                                                        \
 129   OBJCODE_HEADER,                                                       \
 130   /* 0 */ scm_op_assert_nargs_ge, 0, nreq, /* assert number of args */  \
 131   /* 3 */ scm_op_push_rest, 0, nreq, /* cons rest list */               \
 132   /* 6 */ scm_op_object_ref, 0, /* push the foreign object wrapping the subr pointer */ \
 133   /* 8 */ scm_op_subr_call, nreq+1, /* and call (will return value as well) */ \
 134   /* 10 */ scm_op_nop, scm_op_nop,                                      \
 135   /* 12 */ scm_op_nop, scm_op_nop, scm_op_nop, scm_op_nop,              \
 136   /* 16 */ META (6, 10, nreq, 0, 1)
 137
 138 #define BC(nopt)                                                        \
 139   OBJCODE_HEADER,                                                       \
 140   /* 0 */ scm_op_bind_optionals, 0, nopt, /* bind optionals */          \
 141   /* 3 */ scm_op_push_rest, 0, nopt, /* cons rest list */               \
 142   /* 6 */ scm_op_object_ref, 0, /* push the foreign object wrapping the subr pointer */ \
 143   /* 8 */ scm_op_subr_call, nopt+1, /* and call (will return value as well) */ \
 144   /* 10 */ scm_op_nop, scm_op_nop,                                      \
 145   /* 12 */ scm_op_nop, scm_op_nop, scm_op_nop, scm_op_nop,              \
 146   /* 16 */ META (6, 10, 0, nopt, 1)
 147
 148 #define ABC(nreq, nopt)                                                 \
 149   OBJCODE_HEADER,                                                       \
 150   /* 0 */ scm_op_assert_nargs_ge, 0, nreq, /* assert number of args */  \
 151   /* 3 */ scm_op_bind_optionals, 0, nreq+nopt, /* bind optionals */     \
 152   /* 6 */ scm_op_push_rest, 0, nreq+nopt, /* cons rest list */          \
 153   /* 9 */ scm_op_object_ref, 0, /* push the foreign object wrapping the subr pointer */ \
 154   /* 11 */ scm_op_subr_call, nreq+nopt+1, /* and call (will return value as well) */ \
 155   /* 13 */ scm_op_nop, scm_op_nop, scm_op_nop,                          \
 156   /* 16 */ META (9, 13, nreq, nopt, 1)
 157
 158 #define META(start, end, nreq, nopt, rest)                              \
 159   META_HEADER,                                                          \
 160   /* 0 */ scm_op_make_eol, /* bindings */                               \
 161   /* 1 */ scm_op_make_eol, /* sources */                                \
 162   /* 2 */ scm_op_make_int8, start, scm_op_make_int8, end, /* arity: from ip N to ip N */ \
 163   /* 6 */ scm_op_make_int8, nreq, /* the arity is N required args */    \
 164   /* 8 */ scm_op_make_int8, nopt, /* N optionals */                     \
 165   /* 10 */ rest ? scm_op_make_true : scm_op_make_false, /* maybe a rest arg */ \
 166   /* 11 */ scm_op_list, 0, 5, /* make a list of those 5 vals */         \
 167   /* 14 */ scm_op_list, 0, 1, /* and the arities will be a list of that one list */ \
 168   /* 17 */ scm_op_load_symbol, 0, 0, 4, 'n', 'a', 'm', 'e', /* `name' */ \
 169   /* 25 */ scm_op_object_ref, 1, /* the name from the object table */   \
 170   /* 27 */ scm_op_cons, /* make a pair for the properties */            \
 171   /* 28 */ scm_op_list, 0, 4, /* pack bindings, sources, and arities into list */ \
 172   /* 31 */ scm_op_return /* and return */                               \
 173   /* 32 */
 174
 175 /*
 176  (defun generate-bytecode (n)
 177    "Generate bytecode for N arguments"
 178    (interactive "p")
 179    (insert (format "/\* %d arguments *\/\n  " n))
 180    (let ((nreq n))
 181      (while (<= 0 nreq)
 182        (let ((nopt (- n nreq)))
 183          (insert
 184           (if (< 0 nreq)
 185               (if (< 0 nopt)
 186                   (format "AB(%d,%d), " nreq nopt)
 187                   (format "A(%d), " nreq))
 188               (if (< 0 nopt)
 189                   (format "B(%d), " nopt)
 190                   (format "A(0), "))))
 191          (setq nreq (1- nreq))))
 192      (insert "\n  ")
 193      (setq nreq (1- n))
 194      (while (<= 0 nreq)
 195        (let ((nopt (- n nreq 1)))
 196          (insert
 197           (if (< 0 nreq)
 198               (if (< 0 nopt)
 199                   (format "ABC(%d,%d), " nreq nopt)
 200                   (format "AC(%d), " nreq))
 201               (if (< 0 nopt)
 202                   (format "BC(%d), " nopt)
 203                   (format "C(), "))))
 204          (setq nreq (1- nreq))))
 205      (insert "\n\n  ")))
 206
 207  (defun generate-bytecodes (n)
 208    "Generate bytecodes for up to N arguments"
 209    (interactive "p")
 210    (let ((i 0))
 211      (while (<= i n)
 212        (generate-bytecode i)
 213        (setq i (1+ i)))))
 214 */
 215 static const struct
 216 {
 217   SCM_ALIGNED (8) scm_t_uint64 dummy; /* alignment */
 218   const scm_t_uint8 bytes[121 * (sizeof (struct scm_objcode) + 16
 219                                  + sizeof (struct scm_objcode) + 32)];
 220 } raw_bytecode = {
 221   0,
 222   {
 223     /* C-u 1 0 M-x generate-bytecodes RET */
 224     /* 0 arguments */
 225     A(0),
 226
 227     /* 1 arguments */
 228     A(1), B(1),
 229     C(),
 230
 231     /* 2 arguments */
 232     A(2), AB(1,1), B(2),
 233     AC(1), BC(1),
 234
 235     /* 3 arguments */
 236     A(3), AB(2,1), AB(1,2), B(3),
 237     AC(2), ABC(1,1), BC(2),
 238
 239     /* 4 arguments */
 240     A(4), AB(3,1), AB(2,2), AB(1,3), B(4),
 241     AC(3), ABC(2,1), ABC(1,2), BC(3),
 242
 243     /* 5 arguments */
 244     A(5), AB(4,1), AB(3,2), AB(2,3), AB(1,4), B(5),
 245     AC(4), ABC(3,1), ABC(2,2), ABC(1,3), BC(4),
 246
 247     /* 6 arguments */
 248     A(6), AB(5,1), AB(4,2), AB(3,3), AB(2,4), AB(1,5), B(6),
 249     AC(5), ABC(4,1), ABC(3,2), ABC(2,3), ABC(1,4), BC(5),
 250
 251     /* 7 arguments */
 252     A(7), AB(6,1), AB(5,2), AB(4,3), AB(3,4), AB(2,5), AB(1,6), B(7),
 253     AC(6), ABC(5,1), ABC(4,2), ABC(3,3), ABC(2,4), ABC(1,5), BC(6),
 254
 255     /* 8 arguments */
 256     A(8), AB(7,1), AB(6,2), AB(5,3), AB(4,4), AB(3,5), AB(2,6), AB(1,7), B(8),
 257     AC(7), ABC(6,1), ABC(5,2), ABC(4,3), ABC(3,4), ABC(2,5), ABC(1,6), BC(7),
 258
 259     /* 9 arguments */
 260     A(9), AB(8,1), AB(7,2), AB(6,3), AB(5,4), AB(4,5), AB(3,6), AB(2,7), AB(1,8), B(9),
 261     AC(8), ABC(7,1), ABC(6,2), ABC(5,3), ABC(4,4), ABC(3,5), ABC(2,6), ABC(1,7), BC(8),
 262
 263     /* 10 arguments */
 264     A(10), AB(9,1), AB(8,2), AB(7,3), AB(6,4), AB(5,5), AB(4,6), AB(3,7), AB(2,8), AB(1,9), B(10),
 265     AC(9), ABC(8,1), ABC(7,2), ABC(6,3), ABC(5,4), ABC(4,5), ABC(3,6), ABC(2,7), ABC(1,8), BC(9)
 266   }
 267 };
 268
 269 #undef A
 270 #undef B
 271 #undef C
 272 #undef AB
 273 #undef AC
 274 #undef BC
 275 #undef ABC
 276 #undef OBJCODE_HEADER
 277 #undef META_HEADER
 278 #undef META
 279
 280 /*
 281  ;; (nargs * nargs) + nopt + rest * (nargs + 1)
 282  (defun generate-objcode-cells-helper (n)
 283    "Generate objcode cells for N arguments"
 284    (interactive "p")
 285    (insert (format "    /\* %d arguments *\/\n" n))
 286    (let ((nreq n))
 287      (while (<= 0 nreq)
 288        (let ((nopt (- n nreq)))
 289          (insert
 290           (format "    { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + %d) },\n"
 291                   (* (+ 4 4 16 4 4 32)
 292                      (+ (* n n) nopt))))
 293          (insert "    { SCM_BOOL_F, SCM_PACK (0) },\n")
 294          (setq nreq (1- nreq))))
 295      (insert "\n")
 296      (setq nreq (1- n))
 297      (while (<= 0 nreq)
 298        (let ((nopt (- n nreq 1)))
 299          (insert
 300           (format "    { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + %d) },\n"
 301                   (* (+ 4 4 16 4 4 32)
 302                      (+ (* n n) nopt n 1))))
 303          (insert "    { SCM_BOOL_F, SCM_PACK (0) },\n")
 304          (setq nreq (1- nreq))))
 305      (insert "\n")))
 306
 307  (defun generate-objcode-cells (n)
 308    "Generate objcode cells for up to N arguments"
 309    (interactive "p")
 310    (let ((i 0))
 311      (while (<= i n)
 312        (generate-objcode-cells-helper i)
 313        (setq i (1+ i)))))
 314 */
 315
 316 #define STATIC_OBJCODE_TAG                                      \
 317   SCM_PACK (SCM_MAKE_OBJCODE_TAG (SCM_OBJCODE_TYPE_STATIC, 0))
 318
 319 static const struct
 320 {
 321   SCM_ALIGNED (8) scm_t_uint64 dummy; /* alignment */
 322   scm_t_cell cells[121 * 2]; /* 11*11 double cells */
 323 } objcode_cells = {
 324   0,
 325   /* C-u 1 0 M-x generate-objcode-cells RET */
 326   {
 327     /* 0 arguments */
 328     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 0) },
 329     { SCM_BOOL_F, SCM_PACK (0) },
 330
 331
 332     /* 1 arguments */
 333     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 64) },
 334     { SCM_BOOL_F, SCM_PACK (0) },
 335     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 128) },
 336     { SCM_BOOL_F, SCM_PACK (0) },
 337
 338     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 192) },
 339     { SCM_BOOL_F, SCM_PACK (0) },
 340
 341     /* 2 arguments */
 342     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 256) },
 343     { SCM_BOOL_F, SCM_PACK (0) },
 344     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 320) },
 345     { SCM_BOOL_F, SCM_PACK (0) },
 346     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 384) },
 347     { SCM_BOOL_F, SCM_PACK (0) },
 348
 349     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 448) },
 350     { SCM_BOOL_F, SCM_PACK (0) },
 351     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 512) },
 352     { SCM_BOOL_F, SCM_PACK (0) },
 353
 354     /* 3 arguments */
 355     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 576) },
 356     { SCM_BOOL_F, SCM_PACK (0) },
 357     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 640) },
 358     { SCM_BOOL_F, SCM_PACK (0) },
 359     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 704) },
 360     { SCM_BOOL_F, SCM_PACK (0) },
 361     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 768) },
 362     { SCM_BOOL_F, SCM_PACK (0) },
 363
 364     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 832) },
 365     { SCM_BOOL_F, SCM_PACK (0) },
 366     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 896) },
 367     { SCM_BOOL_F, SCM_PACK (0) },
 368     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 960) },
 369     { SCM_BOOL_F, SCM_PACK (0) },
 370
 371     /* 4 arguments */
 372     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1024) },
 373     { SCM_BOOL_F, SCM_PACK (0) },
 374     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1088) },
 375     { SCM_BOOL_F, SCM_PACK (0) },
 376     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1152) },
 377     { SCM_BOOL_F, SCM_PACK (0) },
 378     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1216) },
 379     { SCM_BOOL_F, SCM_PACK (0) },
 380     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1280) },
 381     { SCM_BOOL_F, SCM_PACK (0) },
 382
 383     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1344) },
 384     { SCM_BOOL_F, SCM_PACK (0) },
 385     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1408) },
 386     { SCM_BOOL_F, SCM_PACK (0) },
 387     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1472) },
 388     { SCM_BOOL_F, SCM_PACK (0) },
 389     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1536) },
 390     { SCM_BOOL_F, SCM_PACK (0) },
 391
 392     /* 5 arguments */
 393     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1600) },
 394     { SCM_BOOL_F, SCM_PACK (0) },
 395     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1664) },
 396     { SCM_BOOL_F, SCM_PACK (0) },
 397     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1728) },
 398     { SCM_BOOL_F, SCM_PACK (0) },
 399     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1792) },
 400     { SCM_BOOL_F, SCM_PACK (0) },
 401     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1856) },
 402     { SCM_BOOL_F, SCM_PACK (0) },
 403     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1920) },
 404     { SCM_BOOL_F, SCM_PACK (0) },
 405
 406     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 1984) },
 407     { SCM_BOOL_F, SCM_PACK (0) },
 408     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2048) },
 409     { SCM_BOOL_F, SCM_PACK (0) },
 410     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2112) },
 411     { SCM_BOOL_F, SCM_PACK (0) },
 412     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2176) },
 413     { SCM_BOOL_F, SCM_PACK (0) },
 414     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2240) },
 415     { SCM_BOOL_F, SCM_PACK (0) },
 416
 417     /* 6 arguments */
 418     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2304) },
 419     { SCM_BOOL_F, SCM_PACK (0) },
 420     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2368) },
 421     { SCM_BOOL_F, SCM_PACK (0) },
 422     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2432) },
 423     { SCM_BOOL_F, SCM_PACK (0) },
 424     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2496) },
 425     { SCM_BOOL_F, SCM_PACK (0) },
 426     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2560) },
 427     { SCM_BOOL_F, SCM_PACK (0) },
 428     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2624) },
 429     { SCM_BOOL_F, SCM_PACK (0) },
 430     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2688) },
 431     { SCM_BOOL_F, SCM_PACK (0) },
 432
 433     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2752) },
 434     { SCM_BOOL_F, SCM_PACK (0) },
 435     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2816) },
 436     { SCM_BOOL_F, SCM_PACK (0) },
 437     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2880) },
 438     { SCM_BOOL_F, SCM_PACK (0) },
 439     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 2944) },
 440     { SCM_BOOL_F, SCM_PACK (0) },
 441     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3008) },
 442     { SCM_BOOL_F, SCM_PACK (0) },
 443     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3072) },
 444     { SCM_BOOL_F, SCM_PACK (0) },
 445
 446     /* 7 arguments */
 447     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3136) },
 448     { SCM_BOOL_F, SCM_PACK (0) },
 449     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3200) },
 450     { SCM_BOOL_F, SCM_PACK (0) },
 451     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3264) },
 452     { SCM_BOOL_F, SCM_PACK (0) },
 453     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3328) },
 454     { SCM_BOOL_F, SCM_PACK (0) },
 455     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3392) },
 456     { SCM_BOOL_F, SCM_PACK (0) },
 457     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3456) },
 458     { SCM_BOOL_F, SCM_PACK (0) },
 459     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3520) },
 460     { SCM_BOOL_F, SCM_PACK (0) },
 461     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3584) },
 462     { SCM_BOOL_F, SCM_PACK (0) },
 463
 464     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3648) },
 465     { SCM_BOOL_F, SCM_PACK (0) },
 466     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3712) },
 467     { SCM_BOOL_F, SCM_PACK (0) },
 468     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3776) },
 469     { SCM_BOOL_F, SCM_PACK (0) },
 470     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3840) },
 471     { SCM_BOOL_F, SCM_PACK (0) },
 472     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3904) },
 473     { SCM_BOOL_F, SCM_PACK (0) },
 474     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 3968) },
 475     { SCM_BOOL_F, SCM_PACK (0) },
 476     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4032) },
 477     { SCM_BOOL_F, SCM_PACK (0) },
 478
 479     /* 8 arguments */
 480     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4096) },
 481     { SCM_BOOL_F, SCM_PACK (0) },
 482     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4160) },
 483     { SCM_BOOL_F, SCM_PACK (0) },
 484     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4224) },
 485     { SCM_BOOL_F, SCM_PACK (0) },
 486     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4288) },
 487     { SCM_BOOL_F, SCM_PACK (0) },
 488     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4352) },
 489     { SCM_BOOL_F, SCM_PACK (0) },
 490     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4416) },
 491     { SCM_BOOL_F, SCM_PACK (0) },
 492     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4480) },
 493     { SCM_BOOL_F, SCM_PACK (0) },
 494     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4544) },
 495     { SCM_BOOL_F, SCM_PACK (0) },
 496     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4608) },
 497     { SCM_BOOL_F, SCM_PACK (0) },
 498
 499     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4672) },
 500     { SCM_BOOL_F, SCM_PACK (0) },
 501     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4736) },
 502     { SCM_BOOL_F, SCM_PACK (0) },
 503     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4800) },
 504     { SCM_BOOL_F, SCM_PACK (0) },
 505     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4864) },
 506     { SCM_BOOL_F, SCM_PACK (0) },
 507     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4928) },
 508     { SCM_BOOL_F, SCM_PACK (0) },
 509     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 4992) },
 510     { SCM_BOOL_F, SCM_PACK (0) },
 511     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5056) },
 512     { SCM_BOOL_F, SCM_PACK (0) },
 513     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5120) },
 514     { SCM_BOOL_F, SCM_PACK (0) },
 515
 516     /* 9 arguments */
 517     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5184) },
 518     { SCM_BOOL_F, SCM_PACK (0) },
 519     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5248) },
 520     { SCM_BOOL_F, SCM_PACK (0) },
 521     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5312) },
 522     { SCM_BOOL_F, SCM_PACK (0) },
 523     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5376) },
 524     { SCM_BOOL_F, SCM_PACK (0) },
 525     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5440) },
 526     { SCM_BOOL_F, SCM_PACK (0) },
 527     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5504) },
 528     { SCM_BOOL_F, SCM_PACK (0) },
 529     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5568) },
 530     { SCM_BOOL_F, SCM_PACK (0) },
 531     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5632) },
 532     { SCM_BOOL_F, SCM_PACK (0) },
 533     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5696) },
 534     { SCM_BOOL_F, SCM_PACK (0) },
 535     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5760) },
 536     { SCM_BOOL_F, SCM_PACK (0) },
 537
 538     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5824) },
 539     { SCM_BOOL_F, SCM_PACK (0) },
 540     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5888) },
 541     { SCM_BOOL_F, SCM_PACK (0) },
 542     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 5952) },
 543     { SCM_BOOL_F, SCM_PACK (0) },
 544     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6016) },
 545     { SCM_BOOL_F, SCM_PACK (0) },
 546     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6080) },
 547     { SCM_BOOL_F, SCM_PACK (0) },
 548     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6144) },
 549     { SCM_BOOL_F, SCM_PACK (0) },
 550     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6208) },
 551     { SCM_BOOL_F, SCM_PACK (0) },
 552     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6272) },
 553     { SCM_BOOL_F, SCM_PACK (0) },
 554     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6336) },
 555     { SCM_BOOL_F, SCM_PACK (0) },
 556
 557     /* 10 arguments */
 558     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6400) },
 559     { SCM_BOOL_F, SCM_PACK (0) },
 560     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6464) },
 561     { SCM_BOOL_F, SCM_PACK (0) },
 562     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6528) },
 563     { SCM_BOOL_F, SCM_PACK (0) },
 564     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6592) },
 565     { SCM_BOOL_F, SCM_PACK (0) },
 566     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6656) },
 567     { SCM_BOOL_F, SCM_PACK (0) },
 568     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6720) },
 569     { SCM_BOOL_F, SCM_PACK (0) },
 570     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6784) },
 571     { SCM_BOOL_F, SCM_PACK (0) },
 572     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6848) },
 573     { SCM_BOOL_F, SCM_PACK (0) },
 574     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6912) },
 575     { SCM_BOOL_F, SCM_PACK (0) },
 576     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 6976) },
 577     { SCM_BOOL_F, SCM_PACK (0) },
 578     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 7040) },
 579     { SCM_BOOL_F, SCM_PACK (0) },
 580
 581     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 7104) },
 582     { SCM_BOOL_F, SCM_PACK (0) },
 583     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 7168) },
 584     { SCM_BOOL_F, SCM_PACK (0) },
 585     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 7232) },
 586     { SCM_BOOL_F, SCM_PACK (0) },
 587     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 7296) },
 588     { SCM_BOOL_F, SCM_PACK (0) },
 589     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 7360) },
 590     { SCM_BOOL_F, SCM_PACK (0) },
 591     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 7424) },
 592     { SCM_BOOL_F, SCM_PACK (0) },
 593     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 7488) },
 594     { SCM_BOOL_F, SCM_PACK (0) },
 595     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 7552) },
 596     { SCM_BOOL_F, SCM_PACK (0) },
 597     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 7616) },
 598     { SCM_BOOL_F, SCM_PACK (0) },
 599     { STATIC_OBJCODE_TAG, SCM_PACK (raw_bytecode.bytes + 7680) },
 600     { SCM_BOOL_F, SCM_PACK (0) }
 601   }
 602 };
 603
 604 /*
 605  (defun generate-objcode (n)
 606    "Generate objcode for N arguments"
 607    (interactive "p")
 608    (insert (format "  /\* %d arguments *\/\n" n))
 609    (let ((i (* n n)))
 610      (while (< i (* (1+ n) (1+ n)))
 611        (insert (format "  SCM_PACK (objcode_cells.cells+%d),\n" (* i 2)))
 612        (setq i (1+ i)))
 613      (insert "\n")))
 614
 615  (defun generate-objcodes (n)
 616    "Generate objcodes for up to N arguments"
 617    (interactive "p")
 618    (let ((i 0))
 619      (while (<= i n)
 620        (generate-objcode i)
 621        (setq i (1+ i)))))
 622 */
 623 static const SCM scm_subr_objcode_trampolines[121] = {
 624   /* C-u 1 0 M-x generate-objcodes RET */
 625   /* 0 arguments */
 626   SCM_PACK (objcode_cells.cells+0),
 627
 628   /* 1 arguments */
 629   SCM_PACK (objcode_cells.cells+2),
 630   SCM_PACK (objcode_cells.cells+4),
 631   SCM_PACK (objcode_cells.cells+6),
 632
 633   /* 2 arguments */
 634   SCM_PACK (objcode_cells.cells+8),
 635   SCM_PACK (objcode_cells.cells+10),
 636   SCM_PACK (objcode_cells.cells+12),
 637   SCM_PACK (objcode_cells.cells+14),
 638   SCM_PACK (objcode_cells.cells+16),
 639
 640   /* 3 arguments */
 641   SCM_PACK (objcode_cells.cells+18),
 642   SCM_PACK (objcode_cells.cells+20),
 643   SCM_PACK (objcode_cells.cells+22),
 644   SCM_PACK (objcode_cells.cells+24),
 645   SCM_PACK (objcode_cells.cells+26),
 646   SCM_PACK (objcode_cells.cells+28),
 647   SCM_PACK (objcode_cells.cells+30),
 648
 649   /* 4 arguments */
 650   SCM_PACK (objcode_cells.cells+32),
 651   SCM_PACK (objcode_cells.cells+34),
 652   SCM_PACK (objcode_cells.cells+36),
 653   SCM_PACK (objcode_cells.cells+38),
 654   SCM_PACK (objcode_cells.cells+40),
 655   SCM_PACK (objcode_cells.cells+42),
 656   SCM_PACK (objcode_cells.cells+44),
 657   SCM_PACK (objcode_cells.cells+46),
 658   SCM_PACK (objcode_cells.cells+48),
 659
 660   /* 5 arguments */
 661   SCM_PACK (objcode_cells.cells+50),
 662   SCM_PACK (objcode_cells.cells+52),
 663   SCM_PACK (objcode_cells.cells+54),
 664   SCM_PACK (objcode_cells.cells+56),
 665   SCM_PACK (objcode_cells.cells+58),
 666   SCM_PACK (objcode_cells.cells+60),
 667   SCM_PACK (objcode_cells.cells+62),
 668   SCM_PACK (objcode_cells.cells+64),
 669   SCM_PACK (objcode_cells.cells+66),
 670   SCM_PACK (objcode_cells.cells+68),
 671   SCM_PACK (objcode_cells.cells+70),
 672
 673   /* 6 arguments */
 674   SCM_PACK (objcode_cells.cells+72),
 675   SCM_PACK (objcode_cells.cells+74),
 676   SCM_PACK (objcode_cells.cells+76),
 677   SCM_PACK (objcode_cells.cells+78),
 678   SCM_PACK (objcode_cells.cells+80),
 679   SCM_PACK (objcode_cells.cells+82),
 680   SCM_PACK (objcode_cells.cells+84),
 681   SCM_PACK (objcode_cells.cells+86),
 682   SCM_PACK (objcode_cells.cells+88),
 683   SCM_PACK (objcode_cells.cells+90),
 684   SCM_PACK (objcode_cells.cells+92),
 685   SCM_PACK (objcode_cells.cells+94),
 686   SCM_PACK (objcode_cells.cells+96),
 687
 688   /* 7 arguments */
 689   SCM_PACK (objcode_cells.cells+98),
 690   SCM_PACK (objcode_cells.cells+100),
 691   SCM_PACK (objcode_cells.cells+102),
 692   SCM_PACK (objcode_cells.cells+104),
 693   SCM_PACK (objcode_cells.cells+106),
 694   SCM_PACK (objcode_cells.cells+108),
 695   SCM_PACK (objcode_cells.cells+110),
 696   SCM_PACK (objcode_cells.cells+112),
 697   SCM_PACK (objcode_cells.cells+114),
 698   SCM_PACK (objcode_cells.cells+116),
 699   SCM_PACK (objcode_cells.cells+118),
 700   SCM_PACK (objcode_cells.cells+120),
 701   SCM_PACK (objcode_cells.cells+122),
 702   SCM_PACK (objcode_cells.cells+124),
 703   SCM_PACK (objcode_cells.cells+126),
 704
 705   /* 8 arguments */
 706   SCM_PACK (objcode_cells.cells+128),
 707   SCM_PACK (objcode_cells.cells+130),
 708   SCM_PACK (objcode_cells.cells+132),
 709   SCM_PACK (objcode_cells.cells+134),
 710   SCM_PACK (objcode_cells.cells+136),
 711   SCM_PACK (objcode_cells.cells+138),
 712   SCM_PACK (objcode_cells.cells+140),
 713   SCM_PACK (objcode_cells.cells+142),
 714   SCM_PACK (objcode_cells.cells+144),
 715   SCM_PACK (objcode_cells.cells+146),
 716   SCM_PACK (objcode_cells.cells+148),
 717   SCM_PACK (objcode_cells.cells+150),
 718   SCM_PACK (objcode_cells.cells+152),
 719   SCM_PACK (objcode_cells.cells+154),
 720   SCM_PACK (objcode_cells.cells+156),
 721   SCM_PACK (objcode_cells.cells+158),
 722   SCM_PACK (objcode_cells.cells+160),
 723
 724   /* 9 arguments */
 725   SCM_PACK (objcode_cells.cells+162),
 726   SCM_PACK (objcode_cells.cells+164),
 727   SCM_PACK (objcode_cells.cells+166),
 728   SCM_PACK (objcode_cells.cells+168),
 729   SCM_PACK (objcode_cells.cells+170),
 730   SCM_PACK (objcode_cells.cells+172),
 731   SCM_PACK (objcode_cells.cells+174),
 732   SCM_PACK (objcode_cells.cells+176),
 733   SCM_PACK (objcode_cells.cells+178),
 734   SCM_PACK (objcode_cells.cells+180),
 735   SCM_PACK (objcode_cells.cells+182),
 736   SCM_PACK (objcode_cells.cells+184),
 737   SCM_PACK (objcode_cells.cells+186),
 738   SCM_PACK (objcode_cells.cells+188),
 739   SCM_PACK (objcode_cells.cells+190),
 740   SCM_PACK (objcode_cells.cells+192),
 741   SCM_PACK (objcode_cells.cells+194),
 742   SCM_PACK (objcode_cells.cells+196),
 743   SCM_PACK (objcode_cells.cells+198),
 744
 745   /* 10 arguments */
 746   SCM_PACK (objcode_cells.cells+200),
 747   SCM_PACK (objcode_cells.cells+202),
 748   SCM_PACK (objcode_cells.cells+204),
 749   SCM_PACK (objcode_cells.cells+206),
 750   SCM_PACK (objcode_cells.cells+208),
 751   SCM_PACK (objcode_cells.cells+210),
 752   SCM_PACK (objcode_cells.cells+212),
 753   SCM_PACK (objcode_cells.cells+214),
 754   SCM_PACK (objcode_cells.cells+216),
 755   SCM_PACK (objcode_cells.cells+218),
 756   SCM_PACK (objcode_cells.cells+220),
 757   SCM_PACK (objcode_cells.cells+222),
 758   SCM_PACK (objcode_cells.cells+224),
 759   SCM_PACK (objcode_cells.cells+226),
 760   SCM_PACK (objcode_cells.cells+228),
 761   SCM_PACK (objcode_cells.cells+230),
 762   SCM_PACK (objcode_cells.cells+232),
 763   SCM_PACK (objcode_cells.cells+234),
 764   SCM_PACK (objcode_cells.cells+236),
 765   SCM_PACK (objcode_cells.cells+238),
 766   SCM_PACK (objcode_cells.cells+240)
 767 };
 768
 769 /* (nargs * nargs) + nopt + rest * (nargs + 1) */
 770 #define SCM_SUBR_OBJCODE_TRAMPOLINE(nreq,nopt,rest)                     \
 771   scm_subr_objcode_trampolines[(nreq + nopt + rest) * (nreq + nopt + rest) \
 772                                + nopt + rest * (nreq + nopt + rest + 1)]
 773
 774 SCM
 775 scm_subr_objcode_trampoline (unsigned int nreq, unsigned int nopt,
 776                              unsigned int rest)
 777 {
 778   if (SCM_UNLIKELY (rest > 1 || nreq + nopt + rest > 10))
 779     scm_out_of_range ("make-subr", scm_from_uint (nreq + nopt + rest));
 780
 781   return SCM_SUBR_OBJCODE_TRAMPOLINE (nreq, nopt, rest);
 782 }
 783
 784 static SCM
 785 create_gsubr (int define, const char *name,
 786               unsigned int nreq, unsigned int nopt, unsigned int rest,
 787               SCM (*fcn) (), SCM *generic_loc)
 788 {
 789   SCM ret;
 790   SCM sname;
 791   SCM table;
 792   scm_t_bits flags;
 793
 794   /* make objtable */
 795   sname = scm_from_locale_symbol (name);
 796   table = scm_c_make_vector (generic_loc ? 3 : 2, SCM_UNDEFINED);
 797   SCM_SIMPLE_VECTOR_SET (table, 0, scm_from_pointer (fcn, NULL));
 798   SCM_SIMPLE_VECTOR_SET (table, 1, sname);
 799   if (generic_loc)
 800     SCM_SIMPLE_VECTOR_SET (table, 2,
 801                            scm_from_pointer (generic_loc, NULL));
 802
 803   /* make program */
 804   ret = scm_make_program (scm_subr_objcode_trampoline (nreq, nopt, rest),
 805                           table, SCM_BOOL_F);
 806
 807   /* set flags */
 808   flags = SCM_F_PROGRAM_IS_PRIMITIVE;
 809   flags |= generic_loc ? SCM_F_PROGRAM_IS_PRIMITIVE_GENERIC : 0;
 810   SCM_SET_CELL_WORD_0 (ret, SCM_CELL_WORD_0 (ret) | flags);
 811
 812   /* define, if needed */
 813   if (define)
 814     scm_define (sname, ret);
 815
 816   /* et voila. */
 817   return ret;
 818 }
 819
 820 SCM
 821 scm_c_make_gsubr (const char *name, int req, int opt, int rst, SCM (*fcn)())
 822 {
 823   return create_gsubr (0, name, req, opt, rst, fcn, NULL);
 824 }
 825
 826 SCM
 827 scm_c_define_gsubr (const char *name, int req, int opt, int rst, SCM (*fcn)())
 828 {
 829   return create_gsubr (1, name, req, opt, rst, fcn, NULL);
 830 }
 831
 832 SCM
 833 scm_c_make_gsubr_with_generic (const char *name,
 834                                int req,
 835                                int opt,
 836                                int rst,
 837                                SCM (*fcn)(),
 838                                SCM *gf)
 839 {
 840   return create_gsubr (0, name, req, opt, rst, fcn, gf);
 841 }
 842
 843 SCM
 844 scm_c_define_gsubr_with_generic (const char *name,
 845                                  int req,
 846                                  int opt,
 847                                  int rst,
 848                                  SCM (*fcn)(),
 849                                  SCM *gf)
 850 {
 851   return create_gsubr (1, name, req, opt, rst, fcn, gf);
 852 }
 853
 854
 855 #ifdef GSUBR_TEST
 856 /* A silly example, taking 2 required args, 1 optional, and
 857    a scm_list of rest args
 858    */
 859 SCM
 860 gsubr_21l(SCM req1, SCM req2, SCM opt, SCM rst)
 861 {
 862   scm_puts ("gsubr-2-1-l:\n req1: ", scm_cur_outp);
 863   scm_display(req1, scm_cur_outp);
 864   scm_puts ("\n req2: ", scm_cur_outp);
 865   scm_display(req2, scm_cur_outp);
 866   scm_puts ("\n opt: ", scm_cur_outp);
 867   scm_display(opt, scm_cur_outp);
 868   scm_puts ("\n rest: ", scm_cur_outp);
 869   scm_display(rst, scm_cur_outp);
 870   scm_newline(scm_cur_outp);
 871   return SCM_UNSPECIFIED;
 872 }
 873 #endif
 874
 875
 876 void
 877 scm_init_gsubr()
 878 {
 879 #ifdef GSUBR_TEST
 880   scm_c_define_gsubr ("gsubr-2-1-l", 2, 1, 1, gsubr_21l); /* example */
 881 #endif
 882
 883 #include "libguile/gsubr.x"
 884 }
 885
 886 /*
 887   Local Variables:
 888   c-file-style: "gnu"
 889   End:
 890 */