libgfortran/libgfortran.h

   1 /* Common declarations for all of libgfortran.
   2    Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 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 <stdio.h>
  35 #include <math.h>
  36 #include <stddef.h>
  37 #include <float.h>
  38 #include <stdarg.h>
  39
  40 #if HAVE_COMPLEX_H
  41 # include <complex.h>
  42 #else
  43 #define complex __complex__
  44 #endif
  45
  46 #include "../gcc/fortran/libgfortran.h"
  47
  48 #include "config.h"
  49 #include "c99_protos.h"
  50
  51 #if HAVE_IEEEFP_H
  52 #include <ieeefp.h>
  53 #endif
  54
  55 #include "gstdint.h"
  56
  57 #if HAVE_SYS_TYPES_H
  58 #include <sys/types.h>
  59 #endif
  60 typedef off_t gfc_offset;
  61
  62 #ifndef NULL
  63 #define NULL (void *) 0
  64 #endif
  65
  66 #ifndef __GNUC__
  67 #define __attribute__(x)
  68 #endif
  69
  70
  71 /* On mingw, work around the buggy Windows snprintf() by using the one
  72    mingw provides, __mingw_snprintf().  We also provide a prototype for
  73    __mingw_snprintf(), because the mingw headers currently don't have one.  */
  74 #if HAVE_MINGW_SNPRINTF
  75 extern int __mingw_snprintf (char *, size_t, const char *, ...);
  76 #undef snprintf
  77 #define snprintf __mingw_snprintf
  78 #endif
  79
  80
  81 /* For a library, a standard prefix is a requirement in order to partition
  82    the namespace.  IPREFIX is for symbols intended to be internal to the
  83    library.  */
  84 #define PREFIX(x)       _gfortran_ ## x
  85 #define IPREFIX(x)      _gfortrani_ ## x
  86
  87 /* Magic to rename a symbol at the compiler level.  You continue to refer
  88    to the symbol as OLD in the source, but it'll be named NEW in the asm.  */
  89 #define sym_rename(old, new) sym_rename1(old, __USER_LABEL_PREFIX__, new)
  90 #define sym_rename1(old, ulp, new) sym_rename2(old, ulp, new)
  91 #define sym_rename2(old, ulp, new) extern __typeof(old) old __asm__(#ulp #new)
  92
  93 /* There are several classifications of routines:
  94
  95      (1) Symbols used only within the library,
  96      (2) Symbols to be exported from the library,
  97      (3) Symbols to be exported from the library, but
  98          also used inside the library.
  99
 100    By telling the compiler about these different classifications we can
 101    tightly control the interface seen by the user, and get better code
 102    from the compiler at the same time.
 103
 104    One of the following should be used immediately after the declaration
 105    of each symbol:
 106
 107      internal_proto     Marks a symbol used only within the library,
 108                         and adds IPREFIX to the assembly-level symbol
 109                         name.  The later is important for maintaining
 110                         the namespace partition for the static library.
 111
 112      export_proto       Marks a symbol to be exported, and adds PREFIX
 113                         to the assembly-level symbol name.
 114
 115      export_proto_np    Marks a symbol to be exported without adding PREFIX.
 116
 117      iexport_proto      Marks a function to be exported, but with the
 118                         understanding that it can be used inside as well.
 119
 120      iexport_data_proto Similarly, marks a data symbol to be exported.
 121                         Unfortunately, some systems can't play the hidden
 122                         symbol renaming trick on data symbols, thanks to
 123                         the horribleness of COPY relocations.
 124
 125    If iexport_proto or iexport_data_proto is used, you must also use
 126    iexport or iexport_data after the *definition* of the symbol.  */
 127
 128 #if defined(HAVE_ATTRIBUTE_VISIBILITY)
 129 # define internal_proto(x) \
 130         sym_rename(x, IPREFIX (x)) __attribute__((__visibility__("hidden")))
 131 #else
 132 # define internal_proto(x)      sym_rename(x, IPREFIX(x))
 133 #endif
 134
 135 #if defined(HAVE_ATTRIBUTE_VISIBILITY) && defined(HAVE_ATTRIBUTE_ALIAS)
 136 # define export_proto(x)        sym_rename(x, PREFIX(x))
 137 # define export_proto_np(x)     extern char swallow_semicolon
 138 # define iexport_proto(x)       internal_proto(x)
 139 # define iexport(x)             iexport1(x, IPREFIX(x))
 140 # define iexport1(x,y)          iexport2(x,y)
 141 # define iexport2(x,y) \
 142         extern __typeof(x) PREFIX(x) __attribute__((__alias__(#y)))
 143 /* ??? We're not currently building a dll, and it's wrong to add dllexport
 144    to objects going into a static library archive.  */
 145 #elif 0 && defined(HAVE_ATTRIBUTE_DLLEXPORT)
 146 # define export_proto_np(x)     extern __typeof(x) x __attribute__((dllexport))
 147 # define export_proto(x)    sym_rename(x, PREFIX(x)) __attribute__((dllexport))
 148 # define iexport_proto(x)       export_proto(x)
 149 # define iexport(x)             extern char swallow_semicolon
 150 #else
 151 # define export_proto(x)        sym_rename(x, PREFIX(x))
 152 # define export_proto_np(x)     extern char swallow_semicolon
 153 # define iexport_proto(x)       export_proto(x)
 154 # define iexport(x)             extern char swallow_semicolon
 155 #endif
 156
 157 /* TODO: detect the case when we *can* hide the symbol.  */
 158 #define iexport_data_proto(x)   export_proto(x)
 159 #define iexport_data(x)         extern char swallow_semicolon
 160
 161 /* The only reliable way to get the offset of a field in a struct
 162    in a system independent way is via this macro.  */
 163 #ifndef offsetof
 164 #define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)
 165 #endif
 166
 167 /* The isfinite macro is only available with C99, but some non-C99
 168    systems still provide fpclassify, and there is a `finite' function
 169    in BSD.
 170
 171    Also, isfinite is broken on Cygwin.
 172
 173    When isfinite is not available, try to use one of the
 174    alternatives, or bail out.  */
 175
 176 #if defined(HAVE_BROKEN_ISFINITE) || defined(__CYGWIN__)
 177 #undef isfinite
 178 #endif
 179
 180 #if defined(HAVE_BROKEN_ISNAN)
 181 #undef isnan
 182 #endif
 183
 184 #if defined(HAVE_BROKEN_FPCLASSIFY)
 185 #undef fpclassify
 186 #endif
 187
 188 #if !defined(isfinite)
 189 #if !defined(fpclassify)
 190 #define isfinite(x) ((x) - (x) == 0)
 191 #else
 192 #define isfinite(x) (fpclassify(x) != FP_NAN && fpclassify(x) != FP_INFINITE)
 193 #endif /* !defined(fpclassify) */
 194 #endif /* !defined(isfinite)  */
 195
 196 #if !defined(isnan)
 197 #if !defined(fpclassify)
 198 #define isnan(x) ((x) != (x))
 199 #else
 200 #define isnan(x) (fpclassify(x) == FP_NAN)
 201 #endif /* !defined(fpclassify) */
 202 #endif /* !defined(isfinite)  */
 203
 204 /* TODO: find the C99 version of these an move into above ifdef.  */
 205 #define REALPART(z) (__real__(z))
 206 #define IMAGPART(z) (__imag__(z))
 207 #define COMPLEX_ASSIGN(z_, r_, i_) {__real__(z_) = (r_); __imag__(z_) = (i_);}
 208
 209 #include "kinds.h"
 210
 211 /* Define the type used for the current record number for large file I/O.
 212    The size must be consistent with the size defined on the compiler side.  */
 213 #ifdef HAVE_GFC_INTEGER_8
 214 typedef GFC_INTEGER_8 GFC_IO_INT;
 215 #else
 216 #ifdef HAVE_GFC_INTEGER_4
 217 typedef GFC_INTEGER_4 GFC_IO_INT;
 218 #else
 219 #error "GFC_INTEGER_4 should be available for the library to compile".
 220 #endif
 221 #endif
 222
 223 /* The following two definitions must be consistent with the types used
 224    by the compiler.  */
 225 /* The type used of array indices, amongst other things.  */
 226 typedef ssize_t index_type;
 227 /* The type used for the lengths of character variables.  */
 228 typedef GFC_INTEGER_4 gfc_charlen_type;
 229
 230 /* This will be 0 on little-endian machines and one on big-endian machines.  */
 231 extern int l8_to_l4_offset;
 232 internal_proto(l8_to_l4_offset);
 233
 234 #define GFOR_POINTER_TO_L1(p, kind) \
 235   (l8_to_l4_offset * (kind - 1) + (GFC_LOGICAL_1 *)(p))
 236
 237 #define GFC_INTEGER_1_HUGE \
 238   (GFC_INTEGER_1)((((GFC_UINTEGER_1)1) << 7) - 1)
 239 #define GFC_INTEGER_2_HUGE \
 240   (GFC_INTEGER_2)((((GFC_UINTEGER_2)1) << 15) - 1)
 241 #define GFC_INTEGER_4_HUGE \
 242   (GFC_INTEGER_4)((((GFC_UINTEGER_4)1) << 31) - 1)
 243 #define GFC_INTEGER_8_HUGE \
 244   (GFC_INTEGER_8)((((GFC_UINTEGER_8)1) << 63) - 1)
 245 #ifdef HAVE_GFC_INTEGER_16
 246 #define GFC_INTEGER_16_HUGE \
 247   (GFC_INTEGER_16)((((GFC_UINTEGER_16)1) << 127) - 1)
 248 #endif
 249
 250 #define GFC_REAL_4_HUGE FLT_MAX
 251 #define GFC_REAL_8_HUGE DBL_MAX
 252 #ifdef HAVE_GFC_REAL_10
 253 #define GFC_REAL_10_HUGE LDBL_MAX
 254 #endif
 255 #ifdef HAVE_GFC_REAL_16
 256 #define GFC_REAL_16_HUGE LDBL_MAX
 257 #endif
 258
 259 #define GFC_REAL_4_DIGITS FLT_MANT_DIG
 260 #define GFC_REAL_8_DIGITS DBL_MANT_DIG
 261 #ifdef HAVE_GFC_REAL_10
 262 #define GFC_REAL_10_DIGITS LDBL_MANT_DIG
 263 #endif
 264 #ifdef HAVE_GFC_REAL_16
 265 #define GFC_REAL_16_DIGITS LDBL_MANT_DIG
 266 #endif
 267
 268 #define GFC_REAL_4_RADIX FLT_RADIX
 269 #define GFC_REAL_8_RADIX FLT_RADIX
 270 #ifdef HAVE_GFC_REAL_10
 271 #define GFC_REAL_10_RADIX FLT_RADIX
 272 #endif
 273 #ifdef HAVE_GFC_REAL_16
 274 #define GFC_REAL_16_RADIX FLT_RADIX
 275 #endif
 276
 277
 278 typedef struct descriptor_dimension
 279 {
 280   index_type stride;
 281   index_type lbound;
 282   index_type ubound;
 283 }
 284 descriptor_dimension;
 285
 286 #define GFC_ARRAY_DESCRIPTOR(r, type) \
 287 struct {\
 288   type *data;\
 289   size_t offset;\
 290   index_type dtype;\
 291   descriptor_dimension dim[r];\
 292 }
 293
 294 /* Commonly used array descriptor types.  */
 295 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) gfc_array_void;
 296 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, char) gfc_array_char;
 297 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_1) gfc_array_i1;
 298 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_2) gfc_array_i2;
 299 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_4) gfc_array_i4;
 300 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_8) gfc_array_i8;
 301 #ifdef HAVE_GFC_INTEGER_16
 302 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_16) gfc_array_i16;
 303 #endif
 304 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_4) gfc_array_r4;
 305 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_8) gfc_array_r8;
 306 #ifdef HAVE_GFC_REAL_10
 307 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_10) gfc_array_r10;
 308 #endif
 309 #ifdef HAVE_GFC_REAL_16
 310 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_16) gfc_array_r16;
 311 #endif
 312 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_4) gfc_array_c4;
 313 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_8) gfc_array_c8;
 314 #ifdef HAVE_GFC_COMPLEX_10
 315 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_10) gfc_array_c10;
 316 #endif
 317 #ifdef HAVE_GFC_COMPLEX_16
 318 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_16) gfc_array_c16;
 319 #endif
 320 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_1) gfc_array_l1;
 321 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_2) gfc_array_l2;
 322 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_4) gfc_array_l4;
 323 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_8) gfc_array_l8;
 324 #ifdef HAVE_GFC_LOGICAL_16
 325 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_16) gfc_array_l16;
 326 #endif
 327
 328
 329 #define GFC_DESCRIPTOR_RANK(desc) ((desc)->dtype & GFC_DTYPE_RANK_MASK)
 330 #define GFC_DESCRIPTOR_TYPE(desc) (((desc)->dtype & GFC_DTYPE_TYPE_MASK) \
 331                                    >> GFC_DTYPE_TYPE_SHIFT)
 332 #define GFC_DESCRIPTOR_SIZE(desc) ((desc)->dtype >> GFC_DTYPE_SIZE_SHIFT)
 333 #define GFC_DESCRIPTOR_DATA(desc) ((desc)->data)
 334 #define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)
 335
 336 /* Runtime library include.  */
 337 #define stringize(x) expand_macro(x)
 338 #define expand_macro(x) # x
 339
 340 /* Runtime options structure.  */
 341
 342 typedef struct
 343 {
 344   int stdin_unit, stdout_unit, stderr_unit, optional_plus;
 345   int allocate_init_flag, allocate_init_value;
 346   int locus;
 347
 348   int separator_len;
 349   const char *separator;
 350
 351   int mem_check;
 352   int use_stderr, all_unbuffered, default_recl;
 353
 354   int fpu_round, fpu_precision, fpe;
 355
 356   int sighup, sigint;
 357   int dump_core, backtrace;
 358 }
 359 options_t;
 360
 361 extern options_t options;
 362 internal_proto(options);
 363
 364 extern void handler (int);
 365 internal_proto(handler);
 366
 367
 368 /* Compile-time options that will influence the library.  */
 369
 370 typedef struct
 371 {
 372   int warn_std;
 373   int allow_std;
 374   int pedantic;
 375   int convert;
 376   int dump_core;
 377   int backtrace;
 378   int sign_zero;
 379   size_t record_marker;
 380   int max_subrecord_length;
 381   int bounds_check;
 382 }
 383 compile_options_t;
 384
 385 extern compile_options_t compile_options;
 386 internal_proto(compile_options);
 387
 388 extern void init_compile_options (void);
 389 internal_proto(init_compile_options);
 390
 391 #define GFC_MAX_SUBRECORD_LENGTH 2147483639   /* 2**31 - 9 */
 392
 393 /* Structure for statement options.  */
 394
 395 typedef struct
 396 {
 397   const char *name;
 398   int value;
 399 }
 400 st_option;
 401
 402
 403 /* This is returned by notification_std to know if, given the flags
 404    that were given (-std=, -pedantic) we should issue an error, a warning
 405    or nothing.  */
 406 typedef enum
 407 { SILENT, WARNING, ERROR }
 408 notification;
 409
 410 /* This is returned by notify_std and several io functions.  */
 411 typedef enum
 412 { SUCCESS = 1, FAILURE }
 413 try;
 414
 415 /* The filename and line number don't go inside the globals structure.
 416    They are set by the rest of the program and must be linked to.  */
 417
 418 /* Location of the current library call (optional).  */
 419 extern unsigned line;
 420 iexport_data_proto(line);
 421
 422 extern char *filename;
 423 iexport_data_proto(filename);
 424
 425 /* Avoid conflicting prototypes of alloca() in system headers by using
 426    GCC's builtin alloca().  */
 427 #define gfc_alloca(x)  __builtin_alloca(x)
 428
 429
 430 /* Directory for creating temporary files.  Only used when none of the
 431    following environment variables exist: GFORTRAN_TMPDIR, TMP and TEMP.  */
 432 #define DEFAULT_TEMPDIR "/tmp"
 433
 434 /* The default value of record length for preconnected units is defined
 435    here. This value can be overriden by an environment variable.
 436    Default value is 1 Gb.  */
 437 #define DEFAULT_RECL 1073741824
 438
 439
 440 #define CHARACTER2(name) \
 441               gfc_charlen_type name ## _len; \
 442               char * name
 443
 444 typedef struct st_parameter_common
 445 {
 446   GFC_INTEGER_4 flags;
 447   GFC_INTEGER_4 unit;
 448   const char *filename;
 449   GFC_INTEGER_4 line;
 450   CHARACTER2 (iomsg);
 451   GFC_INTEGER_4 *iostat;
 452 }
 453 st_parameter_common;
 454
 455 #undef CHARACTER2
 456
 457 #define IOPARM_LIBRETURN_MASK           (3 << 0)
 458 #define IOPARM_LIBRETURN_OK             (0 << 0)
 459 #define IOPARM_LIBRETURN_ERROR          (1 << 0)
 460 #define IOPARM_LIBRETURN_END            (2 << 0)
 461 #define IOPARM_LIBRETURN_EOR            (3 << 0)
 462 #define IOPARM_ERR                      (1 << 2)
 463 #define IOPARM_END                      (1 << 3)
 464 #define IOPARM_EOR                      (1 << 4)
 465 #define IOPARM_HAS_IOSTAT               (1 << 5)
 466 #define IOPARM_HAS_IOMSG                (1 << 6)
 467
 468 #define IOPARM_COMMON_MASK              ((1 << 7) - 1)
 469
 470 #define IOPARM_OPEN_HAS_RECL_IN         (1 << 7)
 471 #define IOPARM_OPEN_HAS_FILE            (1 << 8)
 472 #define IOPARM_OPEN_HAS_STATUS          (1 << 9)
 473 #define IOPARM_OPEN_HAS_ACCESS          (1 << 10)
 474 #define IOPARM_OPEN_HAS_FORM            (1 << 11)
 475 #define IOPARM_OPEN_HAS_BLANK           (1 << 12)
 476 #define IOPARM_OPEN_HAS_POSITION        (1 << 13)
 477 #define IOPARM_OPEN_HAS_ACTION          (1 << 14)
 478 #define IOPARM_OPEN_HAS_DELIM           (1 << 15)
 479 #define IOPARM_OPEN_HAS_PAD             (1 << 16)
 480 #define IOPARM_OPEN_HAS_CONVERT         (1 << 17)
 481
 482 /* library start function and end macro.  These can be expanded if needed
 483    in the future.  cmp is st_parameter_common *cmp  */
 484
 485 extern void library_start (st_parameter_common *);
 486 internal_proto(library_start);
 487
 488 #define library_end()
 489
 490 /* main.c */
 491
 492 extern void stupid_function_name_for_static_linking (void);
 493 internal_proto(stupid_function_name_for_static_linking);
 494
 495 extern void set_args (int, char **);
 496 export_proto(set_args);
 497
 498 extern void get_args (int *, char ***);
 499 internal_proto(get_args);
 500
 501 extern void store_exe_path (const char *);
 502 export_proto(store_exe_path);
 503
 504 extern char * full_exe_path (void);
 505 internal_proto(full_exe_path);
 506
 507 /* backtrace.c */
 508
 509 extern void show_backtrace (void);
 510 internal_proto(show_backtrace);
 511
 512 /* error.c */
 513
 514 #define GFC_ITOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 2)
 515 #define GFC_XTOA_BUF_SIZE (sizeof (GFC_UINTEGER_LARGEST) * 2 + 1)
 516 #define GFC_OTOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 1)
 517 #define GFC_BTOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 8 + 1)
 518
 519 extern void sys_exit (int) __attribute__ ((noreturn));
 520 internal_proto(sys_exit);
 521
 522 extern const char *gfc_itoa (GFC_INTEGER_LARGEST, char *, size_t);
 523 internal_proto(gfc_itoa);
 524
 525 extern const char *xtoa (GFC_UINTEGER_LARGEST, char *, size_t);
 526 internal_proto(xtoa);
 527
 528 extern void os_error (const char *) __attribute__ ((noreturn));
 529 iexport_proto(os_error);
 530
 531 extern void show_locus (st_parameter_common *);
 532 internal_proto(show_locus);
 533
 534 extern void runtime_error (const char *, ...)
 535      __attribute__ ((noreturn, format (printf, 1, 2)));
 536 iexport_proto(runtime_error);
 537
 538 extern void runtime_error_at (const char *, const char *, ...)
 539      __attribute__ ((noreturn, format (printf, 2, 3)));
 540 iexport_proto(runtime_error_at);
 541
 542 extern void internal_error (st_parameter_common *, const char *)
 543   __attribute__ ((noreturn));
 544 internal_proto(internal_error);
 545
 546 extern const char *get_oserror (void);
 547 internal_proto(get_oserror);
 548
 549 extern const char *translate_error (int);
 550 internal_proto(translate_error);
 551
 552 extern void generate_error (st_parameter_common *, int, const char *);
 553 iexport_proto(generate_error);
 554
 555 extern try notify_std (st_parameter_common *, int, const char *);
 556 internal_proto(notify_std);
 557
 558 extern notification notification_std(int);
 559 internal_proto(notification_std);
 560
 561 /* fpu.c */
 562
 563 extern void set_fpu (void);
 564 internal_proto(set_fpu);
 565
 566 /* memory.c */
 567
 568 extern void *get_mem (size_t) __attribute__ ((malloc));
 569 internal_proto(get_mem);
 570
 571 extern void free_mem (void *);
 572 internal_proto(free_mem);
 573
 574 extern void *internal_malloc_size (size_t) __attribute__ ((malloc));
 575 internal_proto(internal_malloc_size);
 576
 577 /* environ.c */
 578
 579 extern int check_buffered (int);
 580 internal_proto(check_buffered);
 581
 582 extern void init_variables (void);
 583 internal_proto(init_variables);
 584
 585 extern void show_variables (void);
 586 internal_proto(show_variables);
 587
 588 unit_convert get_unformatted_convert (int);
 589 internal_proto(get_unformatted_convert);
 590
 591 /* string.c */
 592
 593 extern int find_option (st_parameter_common *, const char *, gfc_charlen_type,
 594                         const st_option *, const char *);
 595 internal_proto(find_option);
 596
 597 extern gfc_charlen_type fstrlen (const char *, gfc_charlen_type);
 598 internal_proto(fstrlen);
 599
 600 extern gfc_charlen_type fstrcpy (char *, gfc_charlen_type, const char *, gfc_charlen_type);
 601 internal_proto(fstrcpy);
 602
 603 extern gfc_charlen_type cf_strcpy (char *, gfc_charlen_type, const char *);
 604 internal_proto(cf_strcpy);
 605
 606 /* io/intrinsics.c */
 607
 608 extern void flush_all_units (void);
 609 internal_proto(flush_all_units);
 610
 611 /* io.c */
 612
 613 extern void init_units (void);
 614 internal_proto(init_units);
 615
 616 extern void close_units (void);
 617 internal_proto(close_units);
 618
 619 extern int unit_to_fd (int);
 620 internal_proto(unit_to_fd);
 621
 622 extern int st_printf (const char *, ...)
 623   __attribute__ ((format (printf, 1, 2)));
 624 internal_proto(st_printf);
 625
 626 extern int st_vprintf (const char *, va_list);
 627 internal_proto(st_vprintf);
 628
 629 extern char * filename_from_unit (int);
 630 internal_proto(filename_from_unit);
 631
 632 /* stop.c */
 633
 634 extern void stop_numeric (GFC_INTEGER_4) __attribute__ ((noreturn));
 635 iexport_proto(stop_numeric);
 636
 637 /* reshape_packed.c */
 638
 639 extern void reshape_packed (char *, index_type, const char *, index_type,
 640                             const char *, index_type);
 641 internal_proto(reshape_packed);
 642
 643 /* Repacking functions.  */
 644
 645 /* ??? These aren't currently used by the compiler, though we
 646    certainly could do so.  */
 647 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
 648 internal_proto(internal_pack_4);
 649
 650 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
 651 internal_proto(internal_pack_8);
 652
 653 #if defined HAVE_GFC_INTEGER_16
 654 GFC_INTEGER_16 *internal_pack_16 (gfc_array_i16 *);
 655 internal_proto(internal_pack_16);
 656 #endif
 657
 658 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
 659 internal_proto(internal_pack_c4);
 660
 661 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
 662 internal_proto(internal_pack_c8);
 663
 664 #if defined HAVE_GFC_COMPLEX_10
 665 GFC_COMPLEX_10 *internal_pack_c10 (gfc_array_c10 *);
 666 internal_proto(internal_pack_c10);
 667 #endif
 668
 669 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
 670 internal_proto(internal_unpack_4);
 671
 672 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
 673 internal_proto(internal_unpack_8);
 674
 675 #if defined HAVE_GFC_INTEGER_16
 676 extern void internal_unpack_16 (gfc_array_i16 *, const GFC_INTEGER_16 *);
 677 internal_proto(internal_unpack_16);
 678 #endif
 679
 680 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
 681 internal_proto(internal_unpack_c4);
 682
 683 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
 684 internal_proto(internal_unpack_c8);
 685
 686 #if defined HAVE_GFC_COMPLEX_10
 687 extern void internal_unpack_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *);
 688 internal_proto(internal_unpack_c10);
 689 #endif
 690
 691 #if defined HAVE_GFC_COMPLEX_16
 692 extern void internal_unpack_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *);
 693 internal_proto(internal_unpack_c16);
 694 #endif
 695
 696 /* string_intrinsics.c */
 697
 698 extern int compare_string (GFC_INTEGER_4, const char *,
 699                            GFC_INTEGER_4, const char *);
 700 iexport_proto(compare_string);
 701
 702 /* random.c */
 703
 704 extern void random_seed_i4 (GFC_INTEGER_4 * size, gfc_array_i4 * put,
 705                             gfc_array_i4 * get);
 706 iexport_proto(random_seed_i4);
 707 extern void random_seed_i8 (GFC_INTEGER_8 * size, gfc_array_i8 * put,
 708                             gfc_array_i8 * get);
 709 iexport_proto(random_seed_i8);
 710
 711 /* size.c */
 712
 713 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
 714
 715 extern index_type size0 (const array_t * array);
 716 iexport_proto(size0);
 717
 718 #endif  /* LIBGFOR_H  */