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 #include <float.h>
  37
  38 #ifndef M_PI
  39 #define M_PI 3.14159265358979323846264338327
  40 #endif
  41
  42 #if HAVE_COMPLEX_H
  43 # include <complex.h>
  44 #else
  45 #define complex __complex__
  46 #endif
  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 /* For a library, a standard prefix is a requirement in order to partition
  72    the namespace.  IPREFIX is for symbols intended to be internal to the
  73    library.  */
  74 #define PREFIX(x)       _gfortran_ ## x
  75 #define IPREFIX(x)      _gfortrani_ ## x
  76
  77 /* Magic to rename a symbol at the compiler level.  You continue to refer
  78    to the symbol as OLD in the source, but it'll be named NEW in the asm.  */
  79 #define sym_rename(old, new) sym_rename1(old, __USER_LABEL_PREFIX__, new)
  80 #define sym_rename1(old, ulp, new) sym_rename2(old, ulp, new)
  81 #define sym_rename2(old, ulp, new) extern __typeof(old) old __asm__(#ulp #new)
  82
  83 /* There are several classifications of routines:
  84
  85      (1) Symbols used only within the library,
  86      (2) Symbols to be exported from the library,
  87      (3) Symbols to be exported from the library, but
  88          also used inside the library.
  89
  90    By telling the compiler about these different classifications we can
  91    tightly control the interface seen by the user, and get better code
  92    from the compiler at the same time.
  93
  94    One of the following should be used immediately after the declaration
  95    of each symbol:
  96
  97      internal_proto     Marks a symbol used only within the library,
  98                         and adds IPREFIX to the assembly-level symbol
  99                         name.  The later is important for maintaining
 100                         the namespace partition for the static library.
 101
 102      export_proto       Marks a symbol to be exported, and adds PREFIX
 103                         to the assembly-level symbol name.
 104
 105      export_proto_np    Marks a symbol to be exported without adding PREFIX.
 106
 107      iexport_proto      Marks a function to be exported, but with the
 108                         understanding that it can be used inside as well.
 109
 110      iexport_data_proto Similarly, marks a data symbol to be exported.
 111                         Unfortunately, some systems can't play the hidden
 112                         symbol renaming trick on data symbols, thanks to
 113                         the horribleness of COPY relocations.
 114
 115    If iexport_proto or iexport_data_proto is used, you must also use
 116    iexport or iexport_data after the *definition* of the symbol.  */
 117
 118 #if defined(HAVE_ATTRIBUTE_VISIBILITY)
 119 # define internal_proto(x) \
 120         sym_rename(x, IPREFIX (x)) __attribute__((__visibility__("hidden")))
 121 #else
 122 # define internal_proto(x)      sym_rename(x, IPREFIX(x))
 123 #endif
 124
 125 #if defined(HAVE_ATTRIBUTE_VISIBILITY) && defined(HAVE_ATTRIBUTE_ALIAS)
 126 # define export_proto(x)        sym_rename(x, PREFIX(x))
 127 # define export_proto_np(x)     extern char swallow_semicolon
 128 # define iexport_proto(x)       internal_proto(x)
 129 # define iexport(x)             iexport1(x, IPREFIX(x))
 130 # define iexport1(x,y)          iexport2(x,y)
 131 # define iexport2(x,y) \
 132         extern __typeof(x) PREFIX(x) __attribute__((__alias__(#y)))
 133 /* ??? We're not currently building a dll, and it's wrong to add dllexport
 134    to objects going into a static library archive.  */
 135 #elif 0 && defined(HAVE_ATTRIBUTE_DLLEXPORT)
 136 # define export_proto_np(x)     extern __typeof(x) x __attribute__((dllexport))
 137 # define export_proto(x)    sym_rename(x, PREFIX(x)) __attribute__((dllexport))
 138 # define iexport_proto(x)       export_proto(x)
 139 # define iexport(x)             extern char swallow_semicolon
 140 #else
 141 # define export_proto(x)        sym_rename(x, PREFIX(x))
 142 # define export_proto_np(x)     extern char swallow_semicolon
 143 # define iexport_proto(x)       export_proto(x)
 144 # define iexport(x)             extern char swallow_semicolon
 145 #endif
 146
 147 /* TODO: detect the case when we *can* hide the symbol.  */
 148 #define iexport_data_proto(x)   export_proto(x)
 149 #define iexport_data(x)         extern char swallow_semicolon
 150
 151 /* The only reliable way to get the offset of a field in a struct
 152    in a system independent way is via this macro.  */
 153 #ifndef offsetof
 154 #define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)
 155 #endif
 156
 157 /* The isfinite macro is only available with C99, but some non-C99
 158    systems still provide fpclassify, and there is a `finite' function
 159    in BSD.
 160
 161    Also, isfinite is broken on Cygwin.
 162
 163    When isfinite is not available, try to use one of the
 164    alternatives, or bail out.  */
 165
 166 #if defined(HAVE_BROKEN_ISFINITE) || defined(__CYGWIN__)
 167 #undef isfinite
 168 #endif
 169
 170 #if defined(HAVE_BROKEN_ISNAN)
 171 #undef isnan
 172 #endif
 173
 174 #if defined(HAVE_BROKEN_FPCLASSIFY)
 175 #undef fpclassify
 176 #endif
 177
 178 #if !defined(isfinite)
 179 #if !defined(fpclassify)
 180 #define isfinite(x) ((x) - (x) == 0)
 181 #else
 182 #define isfinite(x) (fpclassify(x) != FP_NAN && fpclassify(x) != FP_INFINITE)
 183 #endif /* !defined(fpclassify) */
 184 #endif /* !defined(isfinite)  */
 185
 186 #if !defined(isnan)
 187 #if !defined(fpclassify)
 188 #define isnan(x) ((x) != (x))
 189 #else
 190 #define isnan(x) (fpclassify(x) == FP_NAN)
 191 #endif /* !defined(fpclassify) */
 192 #endif /* !defined(isfinite)  */
 193
 194 /* TODO: find the C99 version of these an move into above ifdef.  */
 195 #define REALPART(z) (__real__(z))
 196 #define IMAGPART(z) (__imag__(z))
 197 #define COMPLEX_ASSIGN(z_, r_, i_) {__real__(z_) = (r_); __imag__(z_) = (i_);}
 198
 199 #include "kinds.h"
 200
 201 /* Define the type used for the current record number for large file I/O.
 202    The size must be consistent with the size defined on the compiler side.  */
 203 #ifdef HAVE_GFC_INTEGER_8
 204 typedef GFC_INTEGER_8 GFC_IO_INT;
 205 #else
 206 #ifdef HAVE_GFC_INTEGER_4
 207 typedef GFC_INTEGER_4 GFC_IO_INT;
 208 #else
 209 #error "GFC_INTEGER_4 should be available for the library to compile".
 210 #endif
 211 #endif
 212
 213 /* The following two definitions must be consistent with the types used
 214    by the compiler.  */
 215 /* The type used of array indices, amongst other things.  */
 216 typedef ssize_t index_type;
 217 /* The type used for the lengths of character variables.  */
 218 typedef GFC_INTEGER_4 gfc_charlen_type;
 219
 220 /* This will be 0 on little-endian machines and one on big-endian machines.  */
 221 extern int l8_to_l4_offset;
 222 internal_proto(l8_to_l4_offset);
 223
 224 #define GFOR_POINTER_L8_TO_L4(p8) \
 225   (l8_to_l4_offset + (GFC_LOGICAL_4 *)(p8))
 226
 227 #define GFC_INTEGER_4_HUGE \
 228   (GFC_INTEGER_4)((((GFC_UINTEGER_4)1) << 31) - 1)
 229 #define GFC_INTEGER_8_HUGE \
 230   (GFC_INTEGER_8)((((GFC_UINTEGER_8)1) << 63) - 1)
 231 #ifdef HAVE_GFC_INTEGER_16
 232 #define GFC_INTEGER_16_HUGE \
 233   (GFC_INTEGER_16)((((GFC_UINTEGER_16)1) << 127) - 1)
 234 #endif
 235
 236 #define GFC_REAL_4_HUGE FLT_MAX
 237 #define GFC_REAL_8_HUGE DBL_MAX
 238 #ifdef HAVE_GFC_REAL_10
 239 #define GFC_REAL_10_HUGE LDBL_MAX
 240 #endif
 241 #ifdef HAVE_GFC_REAL_16
 242 #define GFC_REAL_16_HUGE LDBL_MAX
 243 #endif
 244
 245 #define GFC_REAL_4_DIGITS FLT_MANT_DIG
 246 #define GFC_REAL_8_DIGITS DBL_MANT_DIG
 247 #ifdef HAVE_GFC_REAL_10
 248 #define GFC_REAL_10_DIGITS LDBL_MANT_DIG
 249 #endif
 250 #ifdef HAVE_GFC_REAL_16
 251 #define GFC_REAL_16_DIGITS LDBL_MANT_DIG
 252 #endif
 253
 254 #define GFC_REAL_4_RADIX FLT_RADIX
 255 #define GFC_REAL_8_RADIX FLT_RADIX
 256 #ifdef HAVE_GFC_REAL_10
 257 #define GFC_REAL_10_RADIX FLT_RADIX
 258 #endif
 259 #ifdef HAVE_GFC_REAL_16
 260 #define GFC_REAL_16_RADIX FLT_RADIX
 261 #endif
 262
 263 #ifndef GFC_MAX_DIMENSIONS
 264 #define GFC_MAX_DIMENSIONS 7
 265 #endif
 266
 267 typedef struct descriptor_dimension
 268 {
 269   index_type stride;
 270   index_type lbound;
 271   index_type ubound;
 272 }
 273 descriptor_dimension;
 274
 275 #define GFC_ARRAY_DESCRIPTOR(r, type) \
 276 struct {\
 277   type *data;\
 278   size_t offset;\
 279   index_type dtype;\
 280   descriptor_dimension dim[r];\
 281 }
 282
 283 /* Commonly used array descriptor types.  */
 284 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) gfc_array_void;
 285 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, char) gfc_array_char;
 286 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_4) gfc_array_i4;
 287 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_8) gfc_array_i8;
 288 #ifdef HAVE_GFC_INTEGER_16
 289 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_16) gfc_array_i16;
 290 #endif
 291 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_4) gfc_array_r4;
 292 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_8) gfc_array_r8;
 293 #ifdef HAVE_GFC_REAL_10
 294 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_10) gfc_array_r10;
 295 #endif
 296 #ifdef HAVE_GFC_REAL_16
 297 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_16) gfc_array_r16;
 298 #endif
 299 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_4) gfc_array_c4;
 300 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_8) gfc_array_c8;
 301 #ifdef HAVE_GFC_COMPLEX_10
 302 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_10) gfc_array_c10;
 303 #endif
 304 #ifdef HAVE_GFC_COMPLEX_16
 305 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_16) gfc_array_c16;
 306 #endif
 307 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_4) gfc_array_l4;
 308 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_8) gfc_array_l8;
 309 #ifdef HAVE_GFC_LOGICAL_16
 310 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_16) gfc_array_l16;
 311 #endif
 312
 313 #define GFC_DTYPE_RANK_MASK 0x07
 314 #define GFC_DTYPE_TYPE_SHIFT 3
 315 #define GFC_DTYPE_TYPE_MASK 0x38
 316 #define GFC_DTYPE_SIZE_SHIFT 6
 317
 318 enum
 319 {
 320   GFC_DTYPE_UNKNOWN = 0,
 321   GFC_DTYPE_INTEGER,
 322   /* TODO: recognize logical types.  */
 323   GFC_DTYPE_LOGICAL,
 324   GFC_DTYPE_REAL,
 325   GFC_DTYPE_COMPLEX,
 326   GFC_DTYPE_DERIVED,
 327   GFC_DTYPE_CHARACTER
 328 };
 329
 330 #define GFC_DESCRIPTOR_RANK(desc) ((desc)->dtype & GFC_DTYPE_RANK_MASK)
 331 #define GFC_DESCRIPTOR_TYPE(desc) (((desc)->dtype & GFC_DTYPE_TYPE_MASK) \
 332                                    >> GFC_DTYPE_TYPE_SHIFT)
 333 #define GFC_DESCRIPTOR_SIZE(desc) ((desc)->dtype >> GFC_DTYPE_SIZE_SHIFT)
 334 #define GFC_DESCRIPTOR_DATA(desc) ((desc)->data)
 335 #define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)
 336
 337 /* Runtime library include.  */
 338 #define stringize(x) expand_macro(x)
 339 #define expand_macro(x) # x
 340
 341 /* Runtime options structure.  */
 342
 343 typedef struct
 344 {
 345   int stdin_unit, stdout_unit, stderr_unit, optional_plus;
 346   int allocate_init_flag, allocate_init_value;
 347   int locus;
 348
 349   int separator_len;
 350   const char *separator;
 351
 352   int mem_check;
 353   int use_stderr, all_unbuffered, default_recl;
 354
 355   int fpu_round, fpu_precision, fpe;
 356
 357   int sighup, sigint;
 358   int dump_core;
 359 }
 360 options_t;
 361
 362 extern options_t options;
 363 internal_proto(options);
 364
 365
 366 /* Compile-time options that will influence the library.  */
 367
 368 typedef struct
 369 {
 370   int warn_std;
 371   int allow_std;
 372   int pedantic;
 373   int convert;
 374   int dump_core;
 375   size_t record_marker;
 376   int max_subrecord_length;
 377 }
 378 compile_options_t;
 379
 380 extern compile_options_t compile_options;
 381 internal_proto(compile_options);
 382
 383 extern void init_compile_options (void);
 384 internal_proto(init_compile_options);
 385
 386 #define GFC_MAX_SUBRECORD_LENGTH 2147483639   /* 2**31 - 9 */
 387
 388 /* Structure for statement options.  */
 389
 390 typedef struct
 391 {
 392   const char *name;
 393   int value;
 394 }
 395 st_option;
 396
 397 /* Runtime errors.  The EOR and EOF errors are required to be negative.  */
 398
 399 typedef enum
 400 {
 401   ERROR_FIRST = -3,             /* Marker for the first error.  */
 402   ERROR_EOR = -2,
 403   ERROR_END = -1,
 404   ERROR_OK = 0,                 /* Indicates success, must be zero.  */
 405   ERROR_OS = 5000,              /* Operating system error, more info in errno.  */
 406   ERROR_OPTION_CONFLICT,
 407   ERROR_BAD_OPTION,
 408   ERROR_MISSING_OPTION,
 409   ERROR_ALREADY_OPEN,
 410   ERROR_BAD_UNIT,
 411   ERROR_FORMAT,
 412   ERROR_BAD_ACTION,
 413   ERROR_ENDFILE,
 414   ERROR_BAD_US,
 415   ERROR_READ_VALUE,
 416   ERROR_READ_OVERFLOW,
 417   ERROR_INTERNAL,
 418   ERROR_INTERNAL_UNIT,
 419   ERROR_ALLOCATION,
 420   ERROR_DIRECT_EOR,
 421   ERROR_SHORT_RECORD,
 422   ERROR_CORRUPT_FILE,
 423   ERROR_LAST                    /* Not a real error, the last error # + 1.  */
 424 }
 425 error_codes;
 426
 427
 428 /* Flags to specify which standard/extension contains a feature.
 429    Keep them in sync with their counterparts in gcc/fortran/gfortran.h.  */
 430 #define GFC_STD_LEGACY          (1<<6) /* Backward compatibility.  */
 431 #define GFC_STD_GNU             (1<<5)    /* GNU Fortran extension.  */
 432 #define GFC_STD_F2003           (1<<4)    /* New in F2003.  */
 433 /* Note that no features were obsoleted nor deleted in F2003.  */
 434 #define GFC_STD_F95             (1<<3)    /* New in F95.  */
 435 #define GFC_STD_F95_DEL         (1<<2)    /* Deleted in F95.  */
 436 #define GFC_STD_F95_OBS         (1<<1)    /* Obsoleted in F95.  */
 437 #define GFC_STD_F77             (1<<0)    /* Up to and including F77.  */
 438
 439 /* Bitmasks for the various FPE that can be enabled.
 440    Keep them in sync with their counterparts in gcc/fortran/gfortran.h.  */
 441 #define GFC_FPE_INVALID    (1<<0)
 442 #define GFC_FPE_DENORMAL   (1<<1)
 443 #define GFC_FPE_ZERO       (1<<2)
 444 #define GFC_FPE_OVERFLOW   (1<<3)
 445 #define GFC_FPE_UNDERFLOW  (1<<4)
 446 #define GFC_FPE_PRECISION  (1<<5)
 447
 448 /* This is returned by notification_std to know if, given the flags
 449    that were given (-std=, -pedantic) we should issue an error, a warning
 450    or nothing.  */
 451 typedef enum
 452 { SILENT, WARNING, ERROR }
 453 notification;
 454
 455 /* This is returned by notify_std and several io functions.  */
 456 typedef enum
 457 { SUCCESS = 1, FAILURE }
 458 try;
 459
 460 /* The filename and line number don't go inside the globals structure.
 461    They are set by the rest of the program and must be linked to.  */
 462
 463 /* Location of the current library call (optional).  */
 464 extern unsigned line;
 465 iexport_data_proto(line);
 466
 467 extern char *filename;
 468 iexport_data_proto(filename);
 469
 470 /* Avoid conflicting prototypes of alloca() in system headers by using
 471    GCC's builtin alloca().  */
 472 #define gfc_alloca(x)  __builtin_alloca(x)
 473
 474
 475 /* Various I/O stuff also used in other parts of the library.  */
 476
 477 #define DEFAULT_TEMPDIR "/tmp"
 478
 479 /* The default value of record length for preconnected units is defined
 480    here. This value can be overriden by an environment variable.
 481    Default value is 1 Gb.  */
 482 #define DEFAULT_RECL 1073741824
 483
 484 typedef enum
 485 { CONVERT_NONE=-1, CONVERT_NATIVE, CONVERT_SWAP, CONVERT_BIG, CONVERT_LITTLE }
 486 unit_convert;
 487
 488 #define CHARACTER2(name) \
 489               gfc_charlen_type name ## _len; \
 490               char * name
 491
 492 typedef struct st_parameter_common
 493 {
 494   GFC_INTEGER_4 flags;
 495   GFC_INTEGER_4 unit;
 496   const char *filename;
 497   GFC_INTEGER_4 line;
 498   CHARACTER2 (iomsg);
 499   GFC_INTEGER_4 *iostat;
 500 }
 501 st_parameter_common;
 502
 503 #undef CHARACTER2
 504
 505 #define IOPARM_LIBRETURN_MASK           (3 << 0)
 506 #define IOPARM_LIBRETURN_OK             (0 << 0)
 507 #define IOPARM_LIBRETURN_ERROR          (1 << 0)
 508 #define IOPARM_LIBRETURN_END            (2 << 0)
 509 #define IOPARM_LIBRETURN_EOR            (3 << 0)
 510 #define IOPARM_ERR                      (1 << 2)
 511 #define IOPARM_END                      (1 << 3)
 512 #define IOPARM_EOR                      (1 << 4)
 513 #define IOPARM_HAS_IOSTAT               (1 << 5)
 514 #define IOPARM_HAS_IOMSG                (1 << 6)
 515
 516 #define IOPARM_COMMON_MASK              ((1 << 7) - 1)
 517
 518 #define IOPARM_OPEN_HAS_RECL_IN         (1 << 7)
 519 #define IOPARM_OPEN_HAS_FILE            (1 << 8)
 520 #define IOPARM_OPEN_HAS_STATUS          (1 << 9)
 521 #define IOPARM_OPEN_HAS_ACCESS          (1 << 10)
 522 #define IOPARM_OPEN_HAS_FORM            (1 << 11)
 523 #define IOPARM_OPEN_HAS_BLANK           (1 << 12)
 524 #define IOPARM_OPEN_HAS_POSITION        (1 << 13)
 525 #define IOPARM_OPEN_HAS_ACTION          (1 << 14)
 526 #define IOPARM_OPEN_HAS_DELIM           (1 << 15)
 527 #define IOPARM_OPEN_HAS_PAD             (1 << 16)
 528 #define IOPARM_OPEN_HAS_CONVERT         (1 << 17)
 529
 530
 531 /* main.c */
 532
 533 extern void stupid_function_name_for_static_linking (void);
 534 internal_proto(stupid_function_name_for_static_linking);
 535
 536 extern void library_start (st_parameter_common *);
 537 internal_proto(library_start);
 538
 539 #define library_end()
 540
 541 extern void set_args (int, char **);
 542 export_proto(set_args);
 543
 544 extern void get_args (int *, char ***);
 545 internal_proto(get_args);
 546
 547 /* error.c */
 548
 549 #define GFC_ITOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 2)
 550 #define GFC_XTOA_BUF_SIZE (sizeof (GFC_UINTEGER_LARGEST) * 2 + 1)
 551 #define GFC_OTOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 1)
 552 #define GFC_BTOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 8 + 1)
 553
 554 extern void sys_exit (int) __attribute__ ((noreturn));
 555 internal_proto(sys_exit);
 556
 557 extern const char *gfc_itoa (GFC_INTEGER_LARGEST, char *, size_t);
 558 internal_proto(gfc_itoa);
 559
 560 extern const char *xtoa (GFC_UINTEGER_LARGEST, char *, size_t);
 561 internal_proto(xtoa);
 562
 563 extern void os_error (const char *) __attribute__ ((noreturn));
 564 internal_proto(os_error);
 565
 566 extern void show_locus (st_parameter_common *);
 567 internal_proto(show_locus);
 568
 569 extern void runtime_error (const char *) __attribute__ ((noreturn));
 570 iexport_proto(runtime_error);
 571
 572 extern void internal_error (st_parameter_common *, const char *)
 573   __attribute__ ((noreturn));
 574 internal_proto(internal_error);
 575
 576 extern const char *get_oserror (void);
 577 internal_proto(get_oserror);
 578
 579 extern void st_sprintf (char *, const char *, ...)
 580   __attribute__ ((format (printf, 2, 3)));
 581 internal_proto(st_sprintf);
 582
 583 extern const char *translate_error (int);
 584 internal_proto(translate_error);
 585
 586 extern void generate_error (st_parameter_common *, int, const char *);
 587 internal_proto(generate_error);
 588
 589 extern try notify_std (st_parameter_common *, int, const char *);
 590 internal_proto(notify_std);
 591
 592 extern notification notification_std(int);
 593 internal_proto(notification_std);
 594
 595 /* fpu.c */
 596
 597 extern void set_fpu (void);
 598 internal_proto(set_fpu);
 599
 600 /* memory.c */
 601
 602 extern void *get_mem (size_t) __attribute__ ((malloc));
 603 internal_proto(get_mem);
 604
 605 extern void free_mem (void *);
 606 internal_proto(free_mem);
 607
 608 extern void *internal_malloc_size (size_t);
 609 internal_proto(internal_malloc_size);
 610
 611 extern void internal_free (void *);
 612 iexport_proto(internal_free);
 613
 614 /* environ.c */
 615
 616 extern int check_buffered (int);
 617 internal_proto(check_buffered);
 618
 619 extern void init_variables (void);
 620 internal_proto(init_variables);
 621
 622 extern void show_variables (void);
 623 internal_proto(show_variables);
 624
 625 unit_convert get_unformatted_convert (int);
 626 internal_proto(get_unformatted_convert);
 627
 628 /* string.c */
 629
 630 extern int find_option (st_parameter_common *, const char *, int,
 631                         const st_option *, const char *);
 632 internal_proto(find_option);
 633
 634 extern int fstrlen (const char *, int);
 635 internal_proto(fstrlen);
 636
 637 extern void fstrcpy (char *, int, const char *, int);
 638 internal_proto(fstrcpy);
 639
 640 extern void cf_strcpy (char *, int, const char *);
 641 internal_proto(cf_strcpy);
 642
 643 /* io.c */
 644
 645 extern void init_units (void);
 646 internal_proto(init_units);
 647
 648 extern void close_units (void);
 649 internal_proto(close_units);
 650
 651 extern int unit_to_fd (int);
 652 internal_proto(unit_to_fd);
 653
 654 extern int st_printf (const char *, ...)
 655   __attribute__ ((format (printf, 1, 2)));
 656 internal_proto(st_printf);
 657
 658 /* stop.c */
 659
 660 extern void stop_numeric (GFC_INTEGER_4);
 661 iexport_proto(stop_numeric);
 662
 663 /* reshape_packed.c */
 664
 665 extern void reshape_packed (char *, index_type, const char *, index_type,
 666                             const char *, index_type);
 667 internal_proto(reshape_packed);
 668
 669 /* Repacking functions.  */
 670
 671 /* ??? These aren't currently used by the compiler, though we
 672    certainly could do so.  */
 673 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
 674 internal_proto(internal_pack_4);
 675
 676 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
 677 internal_proto(internal_pack_8);
 678
 679 #if defined HAVE_GFC_INTEGER_16
 680 GFC_INTEGER_16 *internal_pack_16 (gfc_array_i16 *);
 681 internal_proto(internal_pack_16);
 682 #endif
 683
 684 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
 685 internal_proto(internal_pack_c4);
 686
 687 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
 688 internal_proto(internal_pack_c8);
 689
 690 #if defined HAVE_GFC_COMPLEX_10
 691 GFC_COMPLEX_10 *internal_pack_c10 (gfc_array_c10 *);
 692 internal_proto(internal_pack_c10);
 693 #endif
 694
 695 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
 696 internal_proto(internal_unpack_4);
 697
 698 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
 699 internal_proto(internal_unpack_8);
 700
 701 #if defined HAVE_GFC_INTEGER_16
 702 extern void internal_unpack_16 (gfc_array_i16 *, const GFC_INTEGER_16 *);
 703 internal_proto(internal_unpack_16);
 704 #endif
 705
 706 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
 707 internal_proto(internal_unpack_c4);
 708
 709 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
 710 internal_proto(internal_unpack_c8);
 711
 712 #if defined HAVE_GFC_COMPLEX_10
 713 extern void internal_unpack_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *);
 714 internal_proto(internal_unpack_c10);
 715 #endif
 716
 717 #if defined HAVE_GFC_COMPLEX_16
 718 extern void internal_unpack_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *);
 719 internal_proto(internal_unpack_c16);
 720 #endif
 721
 722 /* string_intrinsics.c */
 723
 724 extern GFC_INTEGER_4 compare_string (GFC_INTEGER_4, const char *,
 725                                      GFC_INTEGER_4, const char *);
 726 iexport_proto(compare_string);
 727
 728 /* random.c */
 729
 730 extern void random_seed (GFC_INTEGER_4 * size, gfc_array_i4 * put,
 731                          gfc_array_i4 * get);
 732 iexport_proto(random_seed);
 733
 734 /* size.c */
 735
 736 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
 737
 738 extern index_type size0 (const array_t * array);
 739 iexport_proto(size0);
 740
 741 #endif  /* LIBGFOR_H  */