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 /* config.h MUST be first because it can affect system headers.  */
  35 #include "config.h"
  36
  37 #include <stdio.h>
  38 #include <math.h>
  39 #include <stddef.h>
  40 #include <float.h>
  41 #include <stdarg.h>
  42
  43 #if HAVE_COMPLEX_H
  44 # include <complex.h>
  45 #else
  46 #define complex __complex__
  47 #endif
  48
  49 #include "../gcc/fortran/libgfortran.h"
  50
  51 #include "c99_protos.h"
  52
  53 #if HAVE_IEEEFP_H
  54 #include <ieeefp.h>
  55 #endif
  56
  57 #include "gstdint.h"
  58
  59 #if HAVE_SYS_TYPES_H
  60 #include <sys/types.h>
  61 #endif
  62 typedef off_t gfc_offset;
  63
  64 #ifndef NULL
  65 #define NULL (void *) 0
  66 #endif
  67
  68 #ifndef __GNUC__
  69 #define __attribute__(x)
  70 #endif
  71
  72
  73 /* On mingw, work around the buggy Windows snprintf() by using the one
  74    mingw provides, __mingw_snprintf().  We also provide a prototype for
  75    __mingw_snprintf(), because the mingw headers currently don't have one.  */
  76 #if HAVE_MINGW_SNPRINTF
  77 extern int __mingw_snprintf (char *, size_t, const char *, ...);
  78 #undef snprintf
  79 #define snprintf __mingw_snprintf
  80 #endif
  81
  82
  83 /* For a library, a standard prefix is a requirement in order to partition
  84    the namespace.  IPREFIX is for symbols intended to be internal to the
  85    library.  */
  86 #define PREFIX(x)       _gfortran_ ## x
  87 #define IPREFIX(x)      _gfortrani_ ## x
  88
  89 /* Magic to rename a symbol at the compiler level.  You continue to refer
  90    to the symbol as OLD in the source, but it'll be named NEW in the asm.  */
  91 #define sym_rename(old, new) sym_rename1(old, __USER_LABEL_PREFIX__, new)
  92 #define sym_rename1(old, ulp, new) sym_rename2(old, ulp, new)
  93 #define sym_rename2(old, ulp, new) extern __typeof(old) old __asm__(#ulp #new)
  94
  95 /* There are several classifications of routines:
  96
  97      (1) Symbols used only within the library,
  98      (2) Symbols to be exported from the library,
  99      (3) Symbols to be exported from the library, but
 100          also used inside the library.
 101
 102    By telling the compiler about these different classifications we can
 103    tightly control the interface seen by the user, and get better code
 104    from the compiler at the same time.
 105
 106    One of the following should be used immediately after the declaration
 107    of each symbol:
 108
 109      internal_proto     Marks a symbol used only within the library,
 110                         and adds IPREFIX to the assembly-level symbol
 111                         name.  The later is important for maintaining
 112                         the namespace partition for the static library.
 113
 114      export_proto       Marks a symbol to be exported, and adds PREFIX
 115                         to the assembly-level symbol name.
 116
 117      export_proto_np    Marks a symbol to be exported without adding PREFIX.
 118
 119      iexport_proto      Marks a function to be exported, but with the
 120                         understanding that it can be used inside as well.
 121
 122      iexport_data_proto Similarly, marks a data symbol to be exported.
 123                         Unfortunately, some systems can't play the hidden
 124                         symbol renaming trick on data symbols, thanks to
 125                         the horribleness of COPY relocations.
 126
 127    If iexport_proto or iexport_data_proto is used, you must also use
 128    iexport or iexport_data after the *definition* of the symbol.  */
 129
 130 #if defined(HAVE_ATTRIBUTE_VISIBILITY)
 131 # define internal_proto(x) \
 132         sym_rename(x, IPREFIX (x)) __attribute__((__visibility__("hidden")))
 133 #else
 134 # define internal_proto(x)      sym_rename(x, IPREFIX(x))
 135 #endif
 136
 137 #if defined(HAVE_ATTRIBUTE_VISIBILITY) && defined(HAVE_ATTRIBUTE_ALIAS)
 138 # define export_proto(x)        sym_rename(x, PREFIX(x))
 139 # define export_proto_np(x)     extern char swallow_semicolon
 140 # define iexport_proto(x)       internal_proto(x)
 141 # define iexport(x)             iexport1(x, IPREFIX(x))
 142 # define iexport1(x,y)          iexport2(x,y)
 143 # define iexport2(x,y) \
 144         extern __typeof(x) PREFIX(x) __attribute__((__alias__(#y)))
 145 /* ??? We're not currently building a dll, and it's wrong to add dllexport
 146    to objects going into a static library archive.  */
 147 #elif 0 && defined(HAVE_ATTRIBUTE_DLLEXPORT)
 148 # define export_proto_np(x)     extern __typeof(x) x __attribute__((dllexport))
 149 # define export_proto(x)    sym_rename(x, PREFIX(x)) __attribute__((dllexport))
 150 # define iexport_proto(x)       export_proto(x)
 151 # define iexport(x)             extern char swallow_semicolon
 152 #else
 153 # define export_proto(x)        sym_rename(x, PREFIX(x))
 154 # define export_proto_np(x)     extern char swallow_semicolon
 155 # define iexport_proto(x)       export_proto(x)
 156 # define iexport(x)             extern char swallow_semicolon
 157 #endif
 158
 159 /* TODO: detect the case when we *can* hide the symbol.  */
 160 #define iexport_data_proto(x)   export_proto(x)
 161 #define iexport_data(x)         extern char swallow_semicolon
 162
 163 /* The only reliable way to get the offset of a field in a struct
 164    in a system independent way is via this macro.  */
 165 #ifndef offsetof
 166 #define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)
 167 #endif
 168
 169 /* The isfinite macro is only available with C99, but some non-C99
 170    systems still provide fpclassify, and there is a `finite' function
 171    in BSD.
 172
 173    Also, isfinite is broken on Cygwin.
 174
 175    When isfinite is not available, try to use one of the
 176    alternatives, or bail out.  */
 177
 178 #if defined(HAVE_BROKEN_ISFINITE) || defined(__CYGWIN__)
 179 #undef isfinite
 180 #endif
 181
 182 #if defined(HAVE_BROKEN_ISNAN)
 183 #undef isnan
 184 #endif
 185
 186 #if defined(HAVE_BROKEN_FPCLASSIFY)
 187 #undef fpclassify
 188 #endif
 189
 190 #if !defined(isfinite)
 191 #if !defined(fpclassify)
 192 #define isfinite(x) ((x) - (x) == 0)
 193 #else
 194 #define isfinite(x) (fpclassify(x) != FP_NAN && fpclassify(x) != FP_INFINITE)
 195 #endif /* !defined(fpclassify) */
 196 #endif /* !defined(isfinite)  */
 197
 198 #if !defined(isnan)
 199 #if !defined(fpclassify)
 200 #define isnan(x) ((x) != (x))
 201 #else
 202 #define isnan(x) (fpclassify(x) == FP_NAN)
 203 #endif /* !defined(fpclassify) */
 204 #endif /* !defined(isfinite)  */
 205
 206 /* TODO: find the C99 version of these an move into above ifdef.  */
 207 #define REALPART(z) (__real__(z))
 208 #define IMAGPART(z) (__imag__(z))
 209 #define COMPLEX_ASSIGN(z_, r_, i_) {__real__(z_) = (r_); __imag__(z_) = (i_);}
 210
 211 #include "kinds.h"
 212
 213 /* Define the type used for the current record number for large file I/O.
 214    The size must be consistent with the size defined on the compiler side.  */
 215 #ifdef HAVE_GFC_INTEGER_8
 216 typedef GFC_INTEGER_8 GFC_IO_INT;
 217 #else
 218 #ifdef HAVE_GFC_INTEGER_4
 219 typedef GFC_INTEGER_4 GFC_IO_INT;
 220 #else
 221 #error "GFC_INTEGER_4 should be available for the library to compile".
 222 #endif
 223 #endif
 224
 225 /* The following two definitions must be consistent with the types used
 226    by the compiler.  */
 227 /* The type used of array indices, amongst other things.  */
 228 typedef ssize_t index_type;
 229 /* The type used for the lengths of character variables.  */
 230 typedef GFC_INTEGER_4 gfc_charlen_type;
 231
 232 /* This will be 0 on little-endian machines and one on big-endian machines.  */
 233 extern int l8_to_l4_offset;
 234 internal_proto(l8_to_l4_offset);
 235
 236 #define GFOR_POINTER_TO_L1(p, kind) \
 237   (l8_to_l4_offset * (kind - 1) + (GFC_LOGICAL_1 *)(p))
 238
 239 #define GFC_INTEGER_1_HUGE \
 240   (GFC_INTEGER_1)((((GFC_UINTEGER_1)1) << 7) - 1)
 241 #define GFC_INTEGER_2_HUGE \
 242   (GFC_INTEGER_2)((((GFC_UINTEGER_2)1) << 15) - 1)
 243 #define GFC_INTEGER_4_HUGE \
 244   (GFC_INTEGER_4)((((GFC_UINTEGER_4)1) << 31) - 1)
 245 #define GFC_INTEGER_8_HUGE \
 246   (GFC_INTEGER_8)((((GFC_UINTEGER_8)1) << 63) - 1)
 247 #ifdef HAVE_GFC_INTEGER_16
 248 #define GFC_INTEGER_16_HUGE \
 249   (GFC_INTEGER_16)((((GFC_UINTEGER_16)1) << 127) - 1)
 250 #endif
 251
 252 #define GFC_REAL_4_HUGE FLT_MAX
 253 #define GFC_REAL_8_HUGE DBL_MAX
 254 #ifdef HAVE_GFC_REAL_10
 255 #define GFC_REAL_10_HUGE LDBL_MAX
 256 #endif
 257 #ifdef HAVE_GFC_REAL_16
 258 #define GFC_REAL_16_HUGE LDBL_MAX
 259 #endif
 260
 261 #define GFC_REAL_4_DIGITS FLT_MANT_DIG
 262 #define GFC_REAL_8_DIGITS DBL_MANT_DIG
 263 #ifdef HAVE_GFC_REAL_10
 264 #define GFC_REAL_10_DIGITS LDBL_MANT_DIG
 265 #endif
 266 #ifdef HAVE_GFC_REAL_16
 267 #define GFC_REAL_16_DIGITS LDBL_MANT_DIG
 268 #endif
 269
 270 #define GFC_REAL_4_RADIX FLT_RADIX
 271 #define GFC_REAL_8_RADIX FLT_RADIX
 272 #ifdef HAVE_GFC_REAL_10
 273 #define GFC_REAL_10_RADIX FLT_RADIX
 274 #endif
 275 #ifdef HAVE_GFC_REAL_16
 276 #define GFC_REAL_16_RADIX FLT_RADIX
 277 #endif
 278
 279
 280 typedef struct descriptor_dimension
 281 {
 282   index_type stride;
 283   index_type lbound;
 284   index_type ubound;
 285 }
 286 descriptor_dimension;
 287
 288 #define GFC_ARRAY_DESCRIPTOR(r, type) \
 289 struct {\
 290   type *data;\
 291   size_t offset;\
 292   index_type dtype;\
 293   descriptor_dimension dim[r];\
 294 }
 295
 296 /* Commonly used array descriptor types.  */
 297 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) gfc_array_void;
 298 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, char) gfc_array_char;
 299 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_1) gfc_array_i1;
 300 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_2) gfc_array_i2;
 301 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_4) gfc_array_i4;
 302 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_8) gfc_array_i8;
 303 #ifdef HAVE_GFC_INTEGER_16
 304 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_16) gfc_array_i16;
 305 #endif
 306 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_4) gfc_array_r4;
 307 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_8) gfc_array_r8;
 308 #ifdef HAVE_GFC_REAL_10
 309 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_10) gfc_array_r10;
 310 #endif
 311 #ifdef HAVE_GFC_REAL_16
 312 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_16) gfc_array_r16;
 313 #endif
 314 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_4) gfc_array_c4;
 315 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_8) gfc_array_c8;
 316 #ifdef HAVE_GFC_COMPLEX_10
 317 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_10) gfc_array_c10;
 318 #endif
 319 #ifdef HAVE_GFC_COMPLEX_16
 320 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_16) gfc_array_c16;
 321 #endif
 322 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_1) gfc_array_l1;
 323 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_2) gfc_array_l2;
 324 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_4) gfc_array_l4;
 325 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_8) gfc_array_l8;
 326 #ifdef HAVE_GFC_LOGICAL_16
 327 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_16) gfc_array_l16;
 328 #endif
 329
 330
 331 #define GFC_DESCRIPTOR_RANK(desc) ((desc)->dtype & GFC_DTYPE_RANK_MASK)
 332 #define GFC_DESCRIPTOR_TYPE(desc) (((desc)->dtype & GFC_DTYPE_TYPE_MASK) \
 333                                    >> GFC_DTYPE_TYPE_SHIFT)
 334 #define GFC_DESCRIPTOR_SIZE(desc) ((desc)->dtype >> GFC_DTYPE_SIZE_SHIFT)
 335 #define GFC_DESCRIPTOR_DATA(desc) ((desc)->data)
 336 #define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)
 337
 338 /* Runtime library include.  */
 339 #define stringize(x) expand_macro(x)
 340 #define expand_macro(x) # x
 341
 342 /* Runtime options structure.  */
 343
 344 typedef struct
 345 {
 346   int stdin_unit, stdout_unit, stderr_unit, optional_plus;
 347   int allocate_init_flag, allocate_init_value;
 348   int locus;
 349
 350   int separator_len;
 351   const char *separator;
 352
 353   int mem_check;
 354   int use_stderr, all_unbuffered, default_recl;
 355
 356   int fpu_round, fpu_precision, fpe;
 357
 358   int sighup, sigint;
 359   int dump_core, backtrace;
 360 }
 361 options_t;
 362
 363 extern options_t options;
 364 internal_proto(options);
 365
 366 extern void handler (int);
 367 internal_proto(handler);
 368
 369
 370 /* Compile-time options that will influence the library.  */
 371
 372 typedef struct
 373 {
 374   int warn_std;
 375   int allow_std;
 376   int pedantic;
 377   int convert;
 378   int dump_core;
 379   int backtrace;
 380   int sign_zero;
 381   size_t record_marker;
 382   int max_subrecord_length;
 383   int bounds_check;
 384 }
 385 compile_options_t;
 386
 387 extern compile_options_t compile_options;
 388 internal_proto(compile_options);
 389
 390 extern void init_compile_options (void);
 391 internal_proto(init_compile_options);
 392
 393 #define GFC_MAX_SUBRECORD_LENGTH 2147483639   /* 2**31 - 9 */
 394
 395 /* Structure for statement options.  */
 396
 397 typedef struct
 398 {
 399   const char *name;
 400   int value;
 401 }
 402 st_option;
 403
 404
 405 /* This is returned by notification_std to know if, given the flags
 406    that were given (-std=, -pedantic) we should issue an error, a warning
 407    or nothing.  */
 408 typedef enum
 409 { SILENT, WARNING, ERROR }
 410 notification;
 411
 412 /* This is returned by notify_std and several io functions.  */
 413 typedef enum
 414 { SUCCESS = 1, FAILURE }
 415 try;
 416
 417 /* The filename and line number don't go inside the globals structure.
 418    They are set by the rest of the program and must be linked to.  */
 419
 420 /* Location of the current library call (optional).  */
 421 extern unsigned line;
 422 iexport_data_proto(line);
 423
 424 extern char *filename;
 425 iexport_data_proto(filename);
 426
 427 /* Avoid conflicting prototypes of alloca() in system headers by using
 428    GCC's builtin alloca().  */
 429 #define gfc_alloca(x)  __builtin_alloca(x)
 430
 431
 432 /* Directory for creating temporary files.  Only used when none of the
 433    following environment variables exist: GFORTRAN_TMPDIR, TMP and TEMP.  */
 434 #define DEFAULT_TEMPDIR "/tmp"
 435
 436 /* The default value of record length for preconnected units is defined
 437    here. This value can be overriden by an environment variable.
 438    Default value is 1 Gb.  */
 439 #define DEFAULT_RECL 1073741824
 440
 441
 442 #define CHARACTER2(name) \
 443               gfc_charlen_type name ## _len; \
 444               char * name
 445
 446 typedef struct st_parameter_common
 447 {
 448   GFC_INTEGER_4 flags;
 449   GFC_INTEGER_4 unit;
 450   const char *filename;
 451   GFC_INTEGER_4 line;
 452   CHARACTER2 (iomsg);
 453   GFC_INTEGER_4 *iostat;
 454 }
 455 st_parameter_common;
 456
 457 #undef CHARACTER2
 458
 459 #define IOPARM_LIBRETURN_MASK           (3 << 0)
 460 #define IOPARM_LIBRETURN_OK             (0 << 0)
 461 #define IOPARM_LIBRETURN_ERROR          (1 << 0)
 462 #define IOPARM_LIBRETURN_END            (2 << 0)
 463 #define IOPARM_LIBRETURN_EOR            (3 << 0)
 464 #define IOPARM_ERR                      (1 << 2)
 465 #define IOPARM_END                      (1 << 3)
 466 #define IOPARM_EOR                      (1 << 4)
 467 #define IOPARM_HAS_IOSTAT               (1 << 5)
 468 #define IOPARM_HAS_IOMSG                (1 << 6)
 469
 470 #define IOPARM_COMMON_MASK              ((1 << 7) - 1)
 471
 472 #define IOPARM_OPEN_HAS_RECL_IN         (1 << 7)
 473 #define IOPARM_OPEN_HAS_FILE            (1 << 8)
 474 #define IOPARM_OPEN_HAS_STATUS          (1 << 9)
 475 #define IOPARM_OPEN_HAS_ACCESS          (1 << 10)
 476 #define IOPARM_OPEN_HAS_FORM            (1 << 11)
 477 #define IOPARM_OPEN_HAS_BLANK           (1 << 12)
 478 #define IOPARM_OPEN_HAS_POSITION        (1 << 13)
 479 #define IOPARM_OPEN_HAS_ACTION          (1 << 14)
 480 #define IOPARM_OPEN_HAS_DELIM           (1 << 15)
 481 #define IOPARM_OPEN_HAS_PAD             (1 << 16)
 482 #define IOPARM_OPEN_HAS_CONVERT         (1 << 17)
 483
 484 /* library start function and end macro.  These can be expanded if needed
 485    in the future.  cmp is st_parameter_common *cmp  */
 486
 487 extern void library_start (st_parameter_common *);
 488 internal_proto(library_start);
 489
 490 #define library_end()
 491
 492 /* main.c */
 493
 494 extern void stupid_function_name_for_static_linking (void);
 495 internal_proto(stupid_function_name_for_static_linking);
 496
 497 extern void set_args (int, char **);
 498 export_proto(set_args);
 499
 500 extern void get_args (int *, char ***);
 501 internal_proto(get_args);
 502
 503 extern void store_exe_path (const char *);
 504 export_proto(store_exe_path);
 505
 506 extern char * full_exe_path (void);
 507 internal_proto(full_exe_path);
 508
 509 /* backtrace.c */
 510
 511 extern void show_backtrace (void);
 512 internal_proto(show_backtrace);
 513
 514 /* error.c */
 515
 516 #define GFC_ITOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 2)
 517 #define GFC_XTOA_BUF_SIZE (sizeof (GFC_UINTEGER_LARGEST) * 2 + 1)
 518 #define GFC_OTOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 1)
 519 #define GFC_BTOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 8 + 1)
 520
 521 extern void sys_exit (int) __attribute__ ((noreturn));
 522 internal_proto(sys_exit);
 523
 524 extern const char *gfc_itoa (GFC_INTEGER_LARGEST, char *, size_t);
 525 internal_proto(gfc_itoa);
 526
 527 extern const char *xtoa (GFC_UINTEGER_LARGEST, char *, size_t);
 528 internal_proto(xtoa);
 529
 530 extern void os_error (const char *) __attribute__ ((noreturn));
 531 iexport_proto(os_error);
 532
 533 extern void show_locus (st_parameter_common *);
 534 internal_proto(show_locus);
 535
 536 extern void runtime_error (const char *, ...)
 537      __attribute__ ((noreturn, format (printf, 1, 2)));
 538 iexport_proto(runtime_error);
 539
 540 extern void runtime_error_at (const char *, const char *, ...)
 541      __attribute__ ((noreturn, format (printf, 2, 3)));
 542 iexport_proto(runtime_error_at);
 543
 544 extern void internal_error (st_parameter_common *, const char *)
 545   __attribute__ ((noreturn));
 546 internal_proto(internal_error);
 547
 548 extern const char *get_oserror (void);
 549 internal_proto(get_oserror);
 550
 551 extern const char *translate_error (int);
 552 internal_proto(translate_error);
 553
 554 extern void generate_error (st_parameter_common *, int, const char *);
 555 iexport_proto(generate_error);
 556
 557 extern try notify_std (st_parameter_common *, int, const char *);
 558 internal_proto(notify_std);
 559
 560 extern notification notification_std(int);
 561 internal_proto(notification_std);
 562
 563 /* fpu.c */
 564
 565 extern void set_fpu (void);
 566 internal_proto(set_fpu);
 567
 568 /* memory.c */
 569
 570 extern void *get_mem (size_t) __attribute__ ((malloc));
 571 internal_proto(get_mem);
 572
 573 extern void free_mem (void *);
 574 internal_proto(free_mem);
 575
 576 extern void *internal_malloc_size (size_t) __attribute__ ((malloc));
 577 internal_proto(internal_malloc_size);
 578
 579 /* environ.c */
 580
 581 extern int check_buffered (int);
 582 internal_proto(check_buffered);
 583
 584 extern void init_variables (void);
 585 internal_proto(init_variables);
 586
 587 extern void show_variables (void);
 588 internal_proto(show_variables);
 589
 590 unit_convert get_unformatted_convert (int);
 591 internal_proto(get_unformatted_convert);
 592
 593 /* string.c */
 594
 595 extern int find_option (st_parameter_common *, const char *, gfc_charlen_type,
 596                         const st_option *, const char *);
 597 internal_proto(find_option);
 598
 599 extern gfc_charlen_type fstrlen (const char *, gfc_charlen_type);
 600 internal_proto(fstrlen);
 601
 602 extern gfc_charlen_type fstrcpy (char *, gfc_charlen_type, const char *, gfc_charlen_type);
 603 internal_proto(fstrcpy);
 604
 605 extern gfc_charlen_type cf_strcpy (char *, gfc_charlen_type, const char *);
 606 internal_proto(cf_strcpy);
 607
 608 /* io/intrinsics.c */
 609
 610 extern void flush_all_units (void);
 611 internal_proto(flush_all_units);
 612
 613 /* io.c */
 614
 615 extern void init_units (void);
 616 internal_proto(init_units);
 617
 618 extern void close_units (void);
 619 internal_proto(close_units);
 620
 621 extern int unit_to_fd (int);
 622 internal_proto(unit_to_fd);
 623
 624 extern int st_printf (const char *, ...)
 625   __attribute__ ((format (printf, 1, 2)));
 626 internal_proto(st_printf);
 627
 628 extern int st_vprintf (const char *, va_list);
 629 internal_proto(st_vprintf);
 630
 631 extern char * filename_from_unit (int);
 632 internal_proto(filename_from_unit);
 633
 634 /* stop.c */
 635
 636 extern void stop_numeric (GFC_INTEGER_4) __attribute__ ((noreturn));
 637 iexport_proto(stop_numeric);
 638
 639 /* reshape_packed.c */
 640
 641 extern void reshape_packed (char *, index_type, const char *, index_type,
 642                             const char *, index_type);
 643 internal_proto(reshape_packed);
 644
 645 /* Repacking functions.  */
 646
 647 /* ??? These aren't currently used by the compiler, though we
 648    certainly could do so.  */
 649 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
 650 internal_proto(internal_pack_4);
 651
 652 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
 653 internal_proto(internal_pack_8);
 654
 655 #if defined HAVE_GFC_INTEGER_16
 656 GFC_INTEGER_16 *internal_pack_16 (gfc_array_i16 *);
 657 internal_proto(internal_pack_16);
 658 #endif
 659
 660 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
 661 internal_proto(internal_pack_c4);
 662
 663 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
 664 internal_proto(internal_pack_c8);
 665
 666 #if defined HAVE_GFC_COMPLEX_10
 667 GFC_COMPLEX_10 *internal_pack_c10 (gfc_array_c10 *);
 668 internal_proto(internal_pack_c10);
 669 #endif
 670
 671 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
 672 internal_proto(internal_unpack_4);
 673
 674 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
 675 internal_proto(internal_unpack_8);
 676
 677 #if defined HAVE_GFC_INTEGER_16
 678 extern void internal_unpack_16 (gfc_array_i16 *, const GFC_INTEGER_16 *);
 679 internal_proto(internal_unpack_16);
 680 #endif
 681
 682 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
 683 internal_proto(internal_unpack_c4);
 684
 685 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
 686 internal_proto(internal_unpack_c8);
 687
 688 #if defined HAVE_GFC_COMPLEX_10
 689 extern void internal_unpack_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *);
 690 internal_proto(internal_unpack_c10);
 691 #endif
 692
 693 #if defined HAVE_GFC_COMPLEX_16
 694 extern void internal_unpack_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *);
 695 internal_proto(internal_unpack_c16);
 696 #endif
 697
 698 /* string_intrinsics.c */
 699
 700 extern int compare_string (GFC_INTEGER_4, const char *,
 701                            GFC_INTEGER_4, const char *);
 702 iexport_proto(compare_string);
 703
 704 /* random.c */
 705
 706 extern void random_seed_i4 (GFC_INTEGER_4 * size, gfc_array_i4 * put,
 707                             gfc_array_i4 * get);
 708 iexport_proto(random_seed_i4);
 709 extern void random_seed_i8 (GFC_INTEGER_8 * size, gfc_array_i8 * put,
 710                             gfc_array_i8 * get);
 711 iexport_proto(random_seed_i8);
 712
 713 /* size.c */
 714
 715 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
 716
 717 extern index_type size0 (const array_t * array);
 718 iexport_proto(size0);
 719
 720 #endif  /* LIBGFOR_H  */