libgfortran/libgfortran.h

   1 /* Common declarations for all of libgfortran.
   2    Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
   3    Contributed by Paul Brook <paul@nowt.org>, and
   4    Andy Vaught <andy@xena.eas.asu.edu>
   5
   6 This file is part of the GNU Fortran 95 runtime library (libgfortran).
   7
   8 Libgfortran is free software; you can redistribute it and/or
   9 modify it under the terms of the GNU Lesser General Public
  10 License as published by the Free Software Foundation; either
  11 version 2.1 of the License, or (at your option) any later version.
  12
  13 Libgfortran is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU Lesser General Public License for more details.
  17
  18 You should have received a copy of the GNU Lesser General Public
  19 License along with libgfor; see the file COPYING.LIB.  If not,
  20 write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  21 Boston, MA 02110-1301, USA.  */
  22
  23 /* As a special exception, if you link this library with other files,
  24    some of which are compiled with GCC, to produce an executable,
  25    this library does not by itself cause the resulting executable
  26    to be covered by the GNU General Public License.
  27    This exception does not however invalidate any other reasons why
  28    the executable file might be covered by the GNU General Public License.  */
  29
  30
  31 #ifndef LIBGFOR_H
  32 #define LIBGFOR_H
  33
  34 #include <math.h>
  35 #include <stddef.h>
  36
  37 #ifndef M_PI
  38 #define M_PI 3.14159265358979323846264338327
  39 #endif
  40
  41 #if HAVE_COMPLEX_H
  42 # include <complex.h>
  43 #else
  44 #define complex __complex__
  45 #endif
  46
  47 #include "config.h"
  48 #include "c99_protos.h"
  49
  50 #if HAVE_IEEEFP_H
  51 #include <ieeefp.h>
  52 #endif
  53
  54 #include "gstdint.h"
  55
  56 #if HAVE_SYS_TYPES_H
  57 #include <sys/types.h>
  58 #endif
  59 typedef off_t gfc_offset;
  60
  61 #ifndef NULL
  62 #define NULL (void *) 0
  63 #endif
  64
  65 #ifndef __GNUC__
  66 #define __attribute__(x)
  67 #endif
  68
  69 /* For a library, a standard prefix is a requirement in order to partition
  70    the namespace.  IPREFIX is for symbols intended to be internal to the
  71    library.  */
  72 #define PREFIX(x)       _gfortran_ ## x
  73 #define IPREFIX(x)      _gfortrani_ ## x
  74
  75 /* Magic to rename a symbol at the compiler level.  You continue to refer
  76    to the symbol as OLD in the source, but it'll be named NEW in the asm.  */
  77 #define sym_rename(old, new) sym_rename1(old, __USER_LABEL_PREFIX__, new)
  78 #define sym_rename1(old, ulp, new) sym_rename2(old, ulp, new)
  79 #define sym_rename2(old, ulp, new) extern __typeof(old) old __asm__(#ulp #new)
  80
  81 /* There are several classifications of routines:
  82
  83      (1) Symbols used only within the library,
  84      (2) Symbols to be exported from the library,
  85      (3) Symbols to be exported from the library, but
  86          also used inside the library.
  87
  88    By telling the compiler about these different classifications we can
  89    tightly control the interface seen by the user, and get better code
  90    from the compiler at the same time.
  91
  92    One of the following should be used immediately after the declaration
  93    of each symbol:
  94
  95      internal_proto     Marks a symbol used only within the library,
  96                         and adds IPREFIX to the assembly-level symbol
  97                         name.  The later is important for maintaining
  98                         the namespace partition for the static library.
  99
 100      export_proto       Marks a symbol to be exported, and adds PREFIX
 101                         to the assembly-level symbol name.
 102
 103      export_proto_np    Marks a symbol to be exported without adding PREFIX.
 104
 105      iexport_proto      Marks a function to be exported, but with the
 106                         understanding that it can be used inside as well.
 107
 108      iexport_data_proto Similarly, marks a data symbol to be exported.
 109                         Unfortunately, some systems can't play the hidden
 110                         symbol renaming trick on data symbols, thanks to
 111                         the horribleness of COPY relocations.
 112
 113    If iexport_proto or iexport_data_proto is used, you must also use
 114    iexport or iexport_data after the *definition* of the symbol.  */
 115
 116 #if defined(HAVE_ATTRIBUTE_VISIBILITY)
 117 # define internal_proto(x) \
 118         sym_rename(x, IPREFIX (x)) __attribute__((__visibility__("hidden")))
 119 #else
 120 # define internal_proto(x)      sym_rename(x, IPREFIX(x))
 121 #endif
 122
 123 #if defined(HAVE_ATTRIBUTE_VISIBILITY) && defined(HAVE_ATTRIBUTE_ALIAS)
 124 # define export_proto(x)        sym_rename(x, PREFIX(x))
 125 # define export_proto_np(x)     extern char swallow_semicolon
 126 # define iexport_proto(x)       internal_proto(x)
 127 # define iexport(x)             iexport1(x, __USER_LABEL_PREFIX__, IPREFIX(x))
 128 # define iexport1(x,p,y)        iexport2(x,p,y)
 129 # define iexport2(x,p,y) \
 130         extern __typeof(x) PREFIX(x) __attribute__((__alias__(#p #y)))
 131 /* ??? We're not currently building a dll, and it's wrong to add dllexport
 132    to objects going into a static library archive.  */
 133 #elif 0 && defined(HAVE_ATTRIBUTE_DLLEXPORT)
 134 # define export_proto_np(x)     extern __typeof(x) x __attribute__((dllexport))
 135 # define export_proto(x)    sym_rename(x, PREFIX(x)) __attribute__((dllexport))
 136 # define iexport_proto(x)       export_proto(x)
 137 # define iexport(x)             extern char swallow_semicolon
 138 #else
 139 # define export_proto(x)        sym_rename(x, PREFIX(x))
 140 # define export_proto_np(x)     extern char swallow_semicolon
 141 # define iexport_proto(x)       export_proto(x)
 142 # define iexport(x)             extern char swallow_semicolon
 143 #endif
 144
 145 /* TODO: detect the case when we *can* hide the symbol.  */
 146 #define iexport_data_proto(x)   export_proto(x)
 147 #define iexport_data(x)         extern char swallow_semicolon
 148
 149 /* The only reliable way to get the offset of a field in a struct
 150    in a system independent way is via this macro.  */
 151 #ifndef offsetof
 152 #define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)
 153 #endif
 154
 155 /* The isfinite macro is only available with C99, but some non-C99
 156    systems still provide fpclassify, and there is a `finite' function
 157    in BSD.
 158
 159    Also, isfinite is broken on Cygwin.
 160
 161    When isfinite is not available, try to use one of the
 162    alternatives, or bail out.  */
 163
 164 #if defined(HAVE_BROKEN_ISFINITE) || defined(__CYGWIN__)
 165 #undef isfinite
 166 #endif
 167
 168 #if defined(HAVE_BROKEN_ISNAN)
 169 #undef isnan
 170 #endif
 171
 172 #if defined(HAVE_BROKEN_FPCLASSIFY)
 173 #undef fpclassify
 174 #endif
 175
 176 #if !defined(isfinite)
 177 #if !defined(fpclassify)
 178 #define isfinite(x) ((x) - (x) == 0)
 179 #else
 180 #define isfinite(x) (fpclassify(x) != FP_NAN && fpclassify(x) != FP_INFINITE)
 181 #endif /* !defined(fpclassify) */
 182 #endif /* !defined(isfinite)  */
 183
 184 #if !defined(isnan)
 185 #if !defined(fpclassify)
 186 #define isnan(x) ((x) != (x))
 187 #else
 188 #define isnan(x) (fpclassify(x) == FP_NAN)
 189 #endif /* !defined(fpclassify) */
 190 #endif /* !defined(isfinite)  */
 191
 192 /* TODO: find the C99 version of these an move into above ifdef.  */
 193 #define REALPART(z) (__real__(z))
 194 #define IMAGPART(z) (__imag__(z))
 195 #define COMPLEX_ASSIGN(z_, r_, i_) {__real__(z_) = (r_); __imag__(z_) = (i_);}
 196
 197 #include "kinds.h"
 198
 199 /* The following two definitions must be consistent with the types used
 200    by the compiler.  */
 201 /* The type used of array indices, amongst other things.  */
 202 typedef ssize_t index_type;
 203 /* The type used for the lengths of character variables.  */
 204 typedef GFC_INTEGER_4 gfc_charlen_type;
 205
 206 /* This will be 0 on little-endian machines and one on big-endian machines.  */
 207 extern int l8_to_l4_offset;
 208 internal_proto(l8_to_l4_offset);
 209
 210 #define GFOR_POINTER_L8_TO_L4(p8) \
 211   (l8_to_l4_offset + (GFC_LOGICAL_4 *)(p8))
 212
 213 #define GFC_INTEGER_4_HUGE \
 214   (GFC_INTEGER_4)((((GFC_UINTEGER_4)1) << 31) - 1)
 215 #define GFC_INTEGER_8_HUGE \
 216   (GFC_INTEGER_8)((((GFC_UINTEGER_8)1) << 63) - 1)
 217 #ifdef HAVE_GFC_INTEGER_16
 218 #define GFC_INTEGER_16_HUGE \
 219   (GFC_INTEGER_16)((((GFC_UINTEGER_16)1) << 127) - 1)
 220 #endif
 221
 222 #define GFC_REAL_4_HUGE FLT_MAX
 223 #define GFC_REAL_8_HUGE DBL_MAX
 224 #ifdef HAVE_GFC_REAL_10
 225 #define GFC_REAL_10_HUGE LDBL_MAX
 226 #endif
 227 #ifdef HAVE_GFC_REAL_16
 228 #define GFC_REAL_16_HUGE LDBL_MAX
 229 #endif
 230
 231 #ifndef GFC_MAX_DIMENSIONS
 232 #define GFC_MAX_DIMENSIONS 7
 233 #endif
 234
 235 typedef struct descriptor_dimension
 236 {
 237   index_type stride;
 238   index_type lbound;
 239   index_type ubound;
 240 }
 241 descriptor_dimension;
 242
 243 #define GFC_ARRAY_DESCRIPTOR(r, type) \
 244 struct {\
 245   type *data;\
 246   size_t offset;\
 247   index_type dtype;\
 248   descriptor_dimension dim[r];\
 249 }
 250
 251 /* Commonly used array descriptor types.  */
 252 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) gfc_array_void;
 253 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, char) gfc_array_char;
 254 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_4) gfc_array_i4;
 255 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_8) gfc_array_i8;
 256 #ifdef HAVE_GFC_INTEGER_16
 257 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_16) gfc_array_i16;
 258 #endif
 259 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_4) gfc_array_r4;
 260 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_8) gfc_array_r8;
 261 #ifdef HAVE_GFC_REAL_10
 262 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_10) gfc_array_r10;
 263 #endif
 264 #ifdef HAVE_GFC_REAL_16
 265 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_16) gfc_array_r16;
 266 #endif
 267 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_4) gfc_array_c4;
 268 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_8) gfc_array_c8;
 269 #ifdef HAVE_GFC_COMPLEX_10
 270 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_10) gfc_array_c10;
 271 #endif
 272 #ifdef HAVE_GFC_COMPLEX_16
 273 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_16) gfc_array_c16;
 274 #endif
 275 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_4) gfc_array_l4;
 276 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_8) gfc_array_l8;
 277 #ifdef HAVE_GFC_LOGICAL_16
 278 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_16) gfc_array_l16;
 279 #endif
 280
 281 #define GFC_DTYPE_RANK_MASK 0x07
 282 #define GFC_DTYPE_TYPE_SHIFT 3
 283 #define GFC_DTYPE_TYPE_MASK 0x38
 284 #define GFC_DTYPE_SIZE_SHIFT 6
 285
 286 enum
 287 {
 288   GFC_DTYPE_UNKNOWN = 0,
 289   GFC_DTYPE_INTEGER,
 290   /* TODO: recognize logical types.  */
 291   GFC_DTYPE_LOGICAL,
 292   GFC_DTYPE_REAL,
 293   GFC_DTYPE_COMPLEX,
 294   GFC_DTYPE_DERIVED,
 295   GFC_DTYPE_CHARACTER
 296 };
 297
 298 #define GFC_DESCRIPTOR_RANK(desc) ((desc)->dtype & GFC_DTYPE_RANK_MASK)
 299 #define GFC_DESCRIPTOR_TYPE(desc) (((desc)->dtype & GFC_DTYPE_TYPE_MASK) \
 300                                    >> GFC_DTYPE_TYPE_SHIFT)
 301 #define GFC_DESCRIPTOR_SIZE(desc) ((desc)->dtype >> GFC_DTYPE_SIZE_SHIFT)
 302 #define GFC_DESCRIPTOR_DATA(desc) ((desc)->data)
 303 #define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)
 304
 305 /* Runtime library include.  */
 306 #define stringize(x) expand_macro(x)
 307 #define expand_macro(x) # x
 308
 309 /* Runtime options structure.  */
 310
 311 typedef struct
 312 {
 313   int stdin_unit, stdout_unit, stderr_unit, optional_plus;
 314   int allocate_init_flag, allocate_init_value;
 315   int locus;
 316
 317   int separator_len;
 318   const char *separator;
 319
 320   int mem_check;
 321   int use_stderr, all_unbuffered, default_recl;
 322
 323   int fpu_round, fpu_precision, fpe;
 324
 325   int sighup, sigint;
 326 }
 327 options_t;
 328
 329 extern options_t options;
 330 internal_proto(options);
 331
 332
 333 /* Compile-time options that will influence the library.  */
 334
 335 typedef struct
 336 {
 337   int warn_std;
 338   int allow_std;
 339 }
 340 compile_options_t;
 341
 342 extern compile_options_t compile_options;
 343 internal_proto(compile_options);
 344
 345 extern void init_compile_options (void);
 346 internal_proto(init_compile_options);
 347
 348
 349 /* Structure for statement options.  */
 350
 351 typedef struct
 352 {
 353   const char *name;
 354   int value;
 355 }
 356 st_option;
 357
 358 /* Runtime errors.  The EOR and EOF errors are required to be negative.  */
 359
 360 typedef enum
 361 {
 362   ERROR_FIRST = -3,             /* Marker for the first error.  */
 363   ERROR_EOR = -2,
 364   ERROR_END = -1,
 365   ERROR_OK = 0,                 /* Indicates success, must be zero.  */
 366   ERROR_OS,                     /* Operating system error, more info in errno.  */
 367   ERROR_OPTION_CONFLICT,
 368   ERROR_BAD_OPTION,
 369   ERROR_MISSING_OPTION,
 370   ERROR_ALREADY_OPEN,
 371   ERROR_BAD_UNIT,
 372   ERROR_FORMAT,
 373   ERROR_BAD_ACTION,
 374   ERROR_ENDFILE,
 375   ERROR_BAD_US,
 376   ERROR_READ_VALUE,
 377   ERROR_READ_OVERFLOW,
 378   ERROR_INTERNAL,
 379   ERROR_INTERNAL_UNIT,
 380   ERROR_LAST                    /* Not a real error, the last error # + 1.  */
 381 }
 382 error_codes;
 383
 384
 385 /* Flags to specify which standard/extension contains a feature.
 386    Keep them in sync with their counterparts in gcc/fortran/gfortran.h.  */
 387 #define GFC_STD_LEGACY          (1<<6) /* Backward compatibility.  */
 388 #define GFC_STD_GNU             (1<<5)    /* GNU Fortran extension.  */
 389 #define GFC_STD_F2003           (1<<4)    /* New in F2003.  */
 390 /* Note that no features were obsoleted nor deleted in F2003.  */
 391 #define GFC_STD_F95             (1<<3)    /* New in F95.  */
 392 #define GFC_STD_F95_DEL         (1<<2)    /* Deleted in F95.  */
 393 #define GFC_STD_F95_OBS         (1<<1)    /* Obsoleted in F95.  */
 394 #define GFC_STD_F77             (1<<0)    /* Up to and including F77.  */
 395
 396 /* Bitmasks for the various FPE that can be enabled.
 397    Keep them in sync with their counterparts in gcc/fortran/gfortran.h.  */
 398 #define GFC_FPE_INVALID    (1<<0)
 399 #define GFC_FPE_DENORMAL   (1<<1)
 400 #define GFC_FPE_ZERO       (1<<2)
 401 #define GFC_FPE_OVERFLOW   (1<<3)
 402 #define GFC_FPE_UNDERFLOW  (1<<4)
 403 #define GFC_FPE_PRECISION  (1<<5)
 404
 405 /* The filename and line number don't go inside the globals structure.
 406    They are set by the rest of the program and must be linked to.  */
 407
 408 /* Location of the current library call (optional).  */
 409 extern unsigned line;
 410 iexport_data_proto(line);
 411
 412 extern char *filename;
 413 iexport_data_proto(filename);
 414
 415 /* Avoid conflicting prototypes of alloca() in system headers by using
 416    GCC's builtin alloca().  */
 417 #define gfc_alloca(x)  __builtin_alloca(x)
 418
 419
 420 /* main.c */
 421
 422 extern void stupid_function_name_for_static_linking (void);
 423 internal_proto(stupid_function_name_for_static_linking);
 424
 425 struct st_parameter_common;
 426 extern void library_start (struct st_parameter_common *);
 427 internal_proto(library_start);
 428
 429 #define library_end()
 430
 431 extern void set_args (int, char **);
 432 export_proto(set_args);
 433
 434 extern void get_args (int *, char ***);
 435 internal_proto(get_args);
 436
 437 /* error.c */
 438
 439 #define GFC_ITOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 2)
 440 #define GFC_XTOA_BUF_SIZE (sizeof (GFC_UINTEGER_LARGEST) * 2 + 1)
 441 #define GFC_OTOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 1)
 442 #define GFC_BTOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 8 + 1)
 443
 444 extern const char *gfc_itoa (GFC_INTEGER_LARGEST, char *, size_t);
 445 internal_proto(gfc_itoa);
 446
 447 extern const char *xtoa (GFC_UINTEGER_LARGEST, char *, size_t);
 448 internal_proto(xtoa);
 449
 450 extern void os_error (const char *) __attribute__ ((noreturn));
 451 internal_proto(os_error);
 452
 453 extern void show_locus (struct st_parameter_common *);
 454 internal_proto(show_locus);
 455
 456 extern void runtime_error (const char *) __attribute__ ((noreturn));
 457 iexport_proto(runtime_error);
 458
 459 extern void internal_error (struct st_parameter_common *, const char *)
 460   __attribute__ ((noreturn));
 461 internal_proto(internal_error);
 462
 463 extern const char *get_oserror (void);
 464 internal_proto(get_oserror);
 465
 466 extern void sys_exit (int) __attribute__ ((noreturn));
 467 internal_proto(sys_exit);
 468
 469 extern int st_printf (const char *, ...)
 470   __attribute__ ((format (printf, 1, 2)));
 471 internal_proto(st_printf);
 472
 473 extern void st_sprintf (char *, const char *, ...)
 474   __attribute__ ((format (printf, 2, 3)));
 475 internal_proto(st_sprintf);
 476
 477 extern const char *translate_error (int);
 478 internal_proto(translate_error);
 479
 480 extern void generate_error (struct st_parameter_common *, int, const char *);
 481 internal_proto(generate_error);
 482
 483 /* fpu.c */
 484
 485 extern void set_fpu (void);
 486 internal_proto(set_fpu);
 487
 488 /* memory.c */
 489
 490 extern void *get_mem (size_t) __attribute__ ((malloc));
 491 internal_proto(get_mem);
 492
 493 extern void free_mem (void *);
 494 internal_proto(free_mem);
 495
 496 extern void *internal_malloc_size (size_t);
 497 internal_proto(internal_malloc_size);
 498
 499 extern void internal_free (void *);
 500 iexport_proto(internal_free);
 501
 502 /* environ.c */
 503
 504 extern int check_buffered (int);
 505 internal_proto(check_buffered);
 506
 507 extern void init_variables (void);
 508 internal_proto(init_variables);
 509
 510 extern void show_variables (void);
 511 internal_proto(show_variables);
 512
 513 /* string.c */
 514
 515 extern int find_option (struct st_parameter_common *, const char *, int,
 516                         const st_option *, const char *);
 517 internal_proto(find_option);
 518
 519 extern int fstrlen (const char *, int);
 520 internal_proto(fstrlen);
 521
 522 extern void fstrcpy (char *, int, const char *, int);
 523 internal_proto(fstrcpy);
 524
 525 extern void cf_strcpy (char *, int, const char *);
 526 internal_proto(cf_strcpy);
 527
 528 /* io.c */
 529
 530 extern void init_units (void);
 531 internal_proto(init_units);
 532
 533 extern void close_units (void);
 534 internal_proto(close_units);
 535
 536 /* stop.c */
 537
 538 extern void stop_numeric (GFC_INTEGER_4);
 539 iexport_proto(stop_numeric);
 540
 541 /* reshape_packed.c */
 542
 543 extern void reshape_packed (char *, index_type, const char *, index_type,
 544                             const char *, index_type);
 545 internal_proto(reshape_packed);
 546
 547 /* Repacking functions.  */
 548
 549 /* ??? These aren't currently used by the compiler, though we
 550    certainly could do so.  */
 551 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
 552 internal_proto(internal_pack_4);
 553
 554 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
 555 internal_proto(internal_pack_8);
 556
 557 #if defined HAVE_GFC_INTEGER_16
 558 GFC_INTEGER_16 *internal_pack_16 (gfc_array_i16 *);
 559 internal_proto(internal_pack_16);
 560 #endif
 561
 562 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
 563 internal_proto(internal_pack_c4);
 564
 565 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
 566 internal_proto(internal_pack_c8);
 567
 568 #if defined HAVE_GFC_COMPLEX_10
 569 GFC_COMPLEX_10 *internal_pack_c10 (gfc_array_c10 *);
 570 internal_proto(internal_pack_c10);
 571 #endif
 572
 573 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
 574 internal_proto(internal_unpack_4);
 575
 576 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
 577 internal_proto(internal_unpack_8);
 578
 579 #if defined HAVE_GFC_INTEGER_16
 580 extern void internal_unpack_16 (gfc_array_i16 *, const GFC_INTEGER_16 *);
 581 internal_proto(internal_unpack_16);
 582 #endif
 583
 584 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
 585 internal_proto(internal_unpack_c4);
 586
 587 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
 588 internal_proto(internal_unpack_c8);
 589
 590 #if defined HAVE_GFC_COMPLEX_10
 591 extern void internal_unpack_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *);
 592 internal_proto(internal_unpack_c10);
 593 #endif
 594
 595 /* string_intrinsics.c */
 596
 597 extern GFC_INTEGER_4 compare_string (GFC_INTEGER_4, const char *,
 598                                      GFC_INTEGER_4, const char *);
 599 iexport_proto(compare_string);
 600
 601 /* random.c */
 602
 603 extern void random_seed (GFC_INTEGER_4 * size, gfc_array_i4 * put,
 604                          gfc_array_i4 * get);
 605 iexport_proto(random_seed);
 606
 607 /* normalize.c */
 608
 609 extern GFC_REAL_4 normalize_r4_i4 (GFC_UINTEGER_4, GFC_UINTEGER_4);
 610 internal_proto(normalize_r4_i4);
 611
 612 extern GFC_REAL_8 normalize_r8_i8 (GFC_UINTEGER_8, GFC_UINTEGER_8);
 613 internal_proto(normalize_r8_i8);
 614
 615 /* size.c */
 616
 617 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
 618
 619 extern index_type size0 (const array_t * array);
 620 iexport_proto(size0);
 621
 622 #endif  /* LIBGFOR_H  */