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 /* For a library, a standard prefix is a requirement in order to partition
  71    the namespace.  IPREFIX is for symbols intended to be internal to the
  72    library.  */
  73 #define PREFIX(x)       _gfortran_ ## x
  74 #define IPREFIX(x)      _gfortrani_ ## x
  75
  76 /* Magic to rename a symbol at the compiler level.  You continue to refer
  77    to the symbol as OLD in the source, but it'll be named NEW in the asm.  */
  78 #define sym_rename(old, new) sym_rename1(old, __USER_LABEL_PREFIX__, new)
  79 #define sym_rename1(old, ulp, new) sym_rename2(old, ulp, new)
  80 #define sym_rename2(old, ulp, new) extern __typeof(old) old __asm__(#ulp #new)
  81
  82 /* There are several classifications of routines:
  83
  84      (1) Symbols used only within the library,
  85      (2) Symbols to be exported from the library,
  86      (3) Symbols to be exported from the library, but
  87          also used inside the library.
  88
  89    By telling the compiler about these different classifications we can
  90    tightly control the interface seen by the user, and get better code
  91    from the compiler at the same time.
  92
  93    One of the following should be used immediately after the declaration
  94    of each symbol:
  95
  96      internal_proto     Marks a symbol used only within the library,
  97                         and adds IPREFIX to the assembly-level symbol
  98                         name.  The later is important for maintaining
  99                         the namespace partition for the static library.
 100
 101      export_proto       Marks a symbol to be exported, and adds PREFIX
 102                         to the assembly-level symbol name.
 103
 104      export_proto_np    Marks a symbol to be exported without adding PREFIX.
 105
 106      iexport_proto      Marks a function to be exported, but with the
 107                         understanding that it can be used inside as well.
 108
 109      iexport_data_proto Similarly, marks a data symbol to be exported.
 110                         Unfortunately, some systems can't play the hidden
 111                         symbol renaming trick on data symbols, thanks to
 112                         the horribleness of COPY relocations.
 113
 114    If iexport_proto or iexport_data_proto is used, you must also use
 115    iexport or iexport_data after the *definition* of the symbol.  */
 116
 117 #if defined(HAVE_ATTRIBUTE_VISIBILITY)
 118 # define internal_proto(x) \
 119         sym_rename(x, IPREFIX (x)) __attribute__((__visibility__("hidden")))
 120 #else
 121 # define internal_proto(x)      sym_rename(x, IPREFIX(x))
 122 #endif
 123
 124 #if defined(HAVE_ATTRIBUTE_VISIBILITY) && defined(HAVE_ATTRIBUTE_ALIAS)
 125 # define export_proto(x)        sym_rename(x, PREFIX(x))
 126 # define export_proto_np(x)     extern char swallow_semicolon
 127 # define iexport_proto(x)       internal_proto(x)
 128 # define iexport(x)             iexport1(x, __USER_LABEL_PREFIX__, IPREFIX(x))
 129 # define iexport1(x,p,y)        iexport2(x,p,y)
 130 # define iexport2(x,p,y) \
 131         extern __typeof(x) PREFIX(x) __attribute__((__alias__(#p #y)))
 132 /* ??? We're not currently building a dll, and it's wrong to add dllexport
 133    to objects going into a static library archive.  */
 134 #elif 0 && defined(HAVE_ATTRIBUTE_DLLEXPORT)
 135 # define export_proto_np(x)     extern __typeof(x) x __attribute__((dllexport))
 136 # define export_proto(x)    sym_rename(x, PREFIX(x)) __attribute__((dllexport))
 137 # define iexport_proto(x)       export_proto(x)
 138 # define iexport(x)             extern char swallow_semicolon
 139 #else
 140 # define export_proto(x)        sym_rename(x, PREFIX(x))
 141 # define export_proto_np(x)     extern char swallow_semicolon
 142 # define iexport_proto(x)       export_proto(x)
 143 # define iexport(x)             extern char swallow_semicolon
 144 #endif
 145
 146 /* TODO: detect the case when we *can* hide the symbol.  */
 147 #define iexport_data_proto(x)   export_proto(x)
 148 #define iexport_data(x)         extern char swallow_semicolon
 149
 150 /* The only reliable way to get the offset of a field in a struct
 151    in a system independent way is via this macro.  */
 152 #ifndef offsetof
 153 #define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)
 154 #endif
 155
 156 /* The isfinite macro is only available with C99, but some non-C99
 157    systems still provide fpclassify, and there is a `finite' function
 158    in BSD.
 159
 160    Also, isfinite is broken on Cygwin.
 161
 162    When isfinite is not available, try to use one of the
 163    alternatives, or bail out.  */
 164
 165 #if defined(HAVE_BROKEN_ISFINITE) || defined(__CYGWIN__)
 166 #undef isfinite
 167 #endif
 168
 169 #if defined(HAVE_BROKEN_ISNAN)
 170 #undef isnan
 171 #endif
 172
 173 #if defined(HAVE_BROKEN_FPCLASSIFY)
 174 #undef fpclassify
 175 #endif
 176
 177 #if !defined(isfinite)
 178 #if !defined(fpclassify)
 179 #define isfinite(x) ((x) - (x) == 0)
 180 #else
 181 #define isfinite(x) (fpclassify(x) != FP_NAN && fpclassify(x) != FP_INFINITE)
 182 #endif /* !defined(fpclassify) */
 183 #endif /* !defined(isfinite)  */
 184
 185 #if !defined(isnan)
 186 #if !defined(fpclassify)
 187 #define isnan(x) ((x) != (x))
 188 #else
 189 #define isnan(x) (fpclassify(x) == FP_NAN)
 190 #endif /* !defined(fpclassify) */
 191 #endif /* !defined(isfinite)  */
 192
 193 /* TODO: find the C99 version of these an move into above ifdef.  */
 194 #define REALPART(z) (__real__(z))
 195 #define IMAGPART(z) (__imag__(z))
 196 #define COMPLEX_ASSIGN(z_, r_, i_) {__real__(z_) = (r_); __imag__(z_) = (i_);}
 197
 198 #include "kinds.h"
 199
 200 /* Define the type used for the current record number for large file I/O.
 201    The size must be consistent with the size defined on the compiler side.  */
 202 #ifdef HAVE_GFC_INTEGER_8
 203 typedef GFC_INTEGER_8 GFC_IO_INT;
 204 #else
 205 #ifdef HAVE_GFC_INTEGER_4
 206 typedef GFC_INTEGER_4 GFC_IO_INT;
 207 #else
 208 #error "GFC_INTEGER_4 should be available for the library to compile".
 209 #endif
 210 #endif
 211
 212 /* The following two definitions must be consistent with the types used
 213    by the compiler.  */
 214 /* The type used of array indices, amongst other things.  */
 215 typedef ssize_t index_type;
 216 /* The type used for the lengths of character variables.  */
 217 typedef GFC_INTEGER_4 gfc_charlen_type;
 218
 219 /* This will be 0 on little-endian machines and one on big-endian machines.  */
 220 extern int l8_to_l4_offset;
 221 internal_proto(l8_to_l4_offset);
 222
 223 #define GFOR_POINTER_L8_TO_L4(p8) \
 224   (l8_to_l4_offset + (GFC_LOGICAL_4 *)(p8))
 225
 226 #define GFC_INTEGER_1_HUGE \
 227   (GFC_INTEGER_1)((((GFC_UINTEGER_1)1) << 7) - 1)
 228 #define GFC_INTEGER_2_HUGE \
 229   (GFC_INTEGER_2)((((GFC_UINTEGER_2)1) << 15) - 1)
 230 #define GFC_INTEGER_4_HUGE \
 231   (GFC_INTEGER_4)((((GFC_UINTEGER_4)1) << 31) - 1)
 232 #define GFC_INTEGER_8_HUGE \
 233   (GFC_INTEGER_8)((((GFC_UINTEGER_8)1) << 63) - 1)
 234 #ifdef HAVE_GFC_INTEGER_16
 235 #define GFC_INTEGER_16_HUGE \
 236   (GFC_INTEGER_16)((((GFC_UINTEGER_16)1) << 127) - 1)
 237 #endif
 238
 239 #define GFC_REAL_4_HUGE FLT_MAX
 240 #define GFC_REAL_8_HUGE DBL_MAX
 241 #ifdef HAVE_GFC_REAL_10
 242 #define GFC_REAL_10_HUGE LDBL_MAX
 243 #endif
 244 #ifdef HAVE_GFC_REAL_16
 245 #define GFC_REAL_16_HUGE LDBL_MAX
 246 #endif
 247
 248 #define GFC_REAL_4_DIGITS FLT_MANT_DIG
 249 #define GFC_REAL_8_DIGITS DBL_MANT_DIG
 250 #ifdef HAVE_GFC_REAL_10
 251 #define GFC_REAL_10_DIGITS LDBL_MANT_DIG
 252 #endif
 253 #ifdef HAVE_GFC_REAL_16
 254 #define GFC_REAL_16_DIGITS LDBL_MANT_DIG
 255 #endif
 256
 257 #define GFC_REAL_4_RADIX FLT_RADIX
 258 #define GFC_REAL_8_RADIX FLT_RADIX
 259 #ifdef HAVE_GFC_REAL_10
 260 #define GFC_REAL_10_RADIX FLT_RADIX
 261 #endif
 262 #ifdef HAVE_GFC_REAL_16
 263 #define GFC_REAL_16_RADIX FLT_RADIX
 264 #endif
 265
 266 #ifndef GFC_MAX_DIMENSIONS
 267 #define GFC_MAX_DIMENSIONS 7
 268 #endif
 269
 270 typedef struct descriptor_dimension
 271 {
 272   index_type stride;
 273   index_type lbound;
 274   index_type ubound;
 275 }
 276 descriptor_dimension;
 277
 278 #define GFC_ARRAY_DESCRIPTOR(r, type) \
 279 struct {\
 280   type *data;\
 281   size_t offset;\
 282   index_type dtype;\
 283   descriptor_dimension dim[r];\
 284 }
 285
 286 /* Commonly used array descriptor types.  */
 287 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) gfc_array_void;
 288 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, char) gfc_array_char;
 289 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_1) gfc_array_i1;
 290 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_2) gfc_array_i2;
 291 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_4) gfc_array_i4;
 292 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_8) gfc_array_i8;
 293 #ifdef HAVE_GFC_INTEGER_16
 294 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_16) gfc_array_i16;
 295 #endif
 296 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_4) gfc_array_r4;
 297 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_8) gfc_array_r8;
 298 #ifdef HAVE_GFC_REAL_10
 299 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_10) gfc_array_r10;
 300 #endif
 301 #ifdef HAVE_GFC_REAL_16
 302 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_16) gfc_array_r16;
 303 #endif
 304 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_4) gfc_array_c4;
 305 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_8) gfc_array_c8;
 306 #ifdef HAVE_GFC_COMPLEX_10
 307 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_10) gfc_array_c10;
 308 #endif
 309 #ifdef HAVE_GFC_COMPLEX_16
 310 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_16) gfc_array_c16;
 311 #endif
 312 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_4) gfc_array_l4;
 313 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_8) gfc_array_l8;
 314 #ifdef HAVE_GFC_LOGICAL_16
 315 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_16) gfc_array_l16;
 316 #endif
 317
 318 #define GFC_DTYPE_RANK_MASK 0x07
 319 #define GFC_DTYPE_TYPE_SHIFT 3
 320 #define GFC_DTYPE_TYPE_MASK 0x38
 321 #define GFC_DTYPE_SIZE_SHIFT 6
 322
 323 enum
 324 {
 325   GFC_DTYPE_UNKNOWN = 0,
 326   GFC_DTYPE_INTEGER,
 327   /* TODO: recognize logical types.  */
 328   GFC_DTYPE_LOGICAL,
 329   GFC_DTYPE_REAL,
 330   GFC_DTYPE_COMPLEX,
 331   GFC_DTYPE_DERIVED,
 332   GFC_DTYPE_CHARACTER
 333 };
 334
 335 #define GFC_DESCRIPTOR_RANK(desc) ((desc)->dtype & GFC_DTYPE_RANK_MASK)
 336 #define GFC_DESCRIPTOR_TYPE(desc) (((desc)->dtype & GFC_DTYPE_TYPE_MASK) \
 337                                    >> GFC_DTYPE_TYPE_SHIFT)
 338 #define GFC_DESCRIPTOR_SIZE(desc) ((desc)->dtype >> GFC_DTYPE_SIZE_SHIFT)
 339 #define GFC_DESCRIPTOR_DATA(desc) ((desc)->data)
 340 #define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)
 341
 342 /* Runtime library include.  */
 343 #define stringize(x) expand_macro(x)
 344 #define expand_macro(x) # x
 345
 346 /* Runtime options structure.  */
 347
 348 typedef struct
 349 {
 350   int stdin_unit, stdout_unit, stderr_unit, optional_plus;
 351   int allocate_init_flag, allocate_init_value;
 352   int locus;
 353
 354   int separator_len;
 355   const char *separator;
 356
 357   int mem_check;
 358   int use_stderr, all_unbuffered, default_recl;
 359
 360   int fpu_round, fpu_precision, fpe;
 361
 362   int sighup, sigint;
 363 }
 364 options_t;
 365
 366 extern options_t options;
 367 internal_proto(options);
 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   size_t record_marker;
 379   int max_subrecord_length;
 380 }
 381 compile_options_t;
 382
 383 extern compile_options_t compile_options;
 384 internal_proto(compile_options);
 385
 386 extern void init_compile_options (void);
 387 internal_proto(init_compile_options);
 388
 389 #define GFC_MAX_SUBRECORD_LENGTH 2147483639   /* 2**31 - 9 */
 390
 391 /* Structure for statement options.  */
 392
 393 typedef struct
 394 {
 395   const char *name;
 396   int value;
 397 }
 398 st_option;
 399
 400 /* Runtime errors.  The EOR and EOF errors are required to be negative.  */
 401
 402 typedef enum
 403 {
 404   ERROR_FIRST = -3,             /* Marker for the first error.  */
 405   ERROR_EOR = -2,
 406   ERROR_END = -1,
 407   ERROR_OK = 0,                 /* Indicates success, must be zero.  */
 408   ERROR_OS,                     /* Operating system error, more info in errno.  */
 409   ERROR_OPTION_CONFLICT,
 410   ERROR_BAD_OPTION,
 411   ERROR_MISSING_OPTION,
 412   ERROR_ALREADY_OPEN,
 413   ERROR_BAD_UNIT,
 414   ERROR_FORMAT,
 415   ERROR_BAD_ACTION,
 416   ERROR_ENDFILE,
 417   ERROR_BAD_US,
 418   ERROR_READ_VALUE,
 419   ERROR_READ_OVERFLOW,
 420   ERROR_INTERNAL,
 421   ERROR_INTERNAL_UNIT,
 422   ERROR_ALLOCATION,
 423   ERROR_DIRECT_EOR,
 424   ERROR_SHORT_RECORD,
 425   ERROR_CORRUPT_FILE,
 426   ERROR_LAST                    /* Not a real error, the last error # + 1.  */
 427 }
 428 error_codes;
 429
 430
 431 /* Flags to specify which standard/extension contains a feature.
 432    Keep them in sync with their counterparts in gcc/fortran/gfortran.h.  */
 433 #define GFC_STD_LEGACY          (1<<6) /* Backward compatibility.  */
 434 #define GFC_STD_GNU             (1<<5)    /* GNU Fortran extension.  */
 435 #define GFC_STD_F2003           (1<<4)    /* New in F2003.  */
 436 /* Note that no features were obsoleted nor deleted in F2003.  */
 437 #define GFC_STD_F95             (1<<3)    /* New in F95.  */
 438 #define GFC_STD_F95_DEL         (1<<2)    /* Deleted in F95.  */
 439 #define GFC_STD_F95_OBS         (1<<1)    /* Obsoleted in F95.  */
 440 #define GFC_STD_F77             (1<<0)    /* Up to and including F77.  */
 441
 442 /* Bitmasks for the various FPE that can be enabled.
 443    Keep them in sync with their counterparts in gcc/fortran/gfortran.h.  */
 444 #define GFC_FPE_INVALID    (1<<0)
 445 #define GFC_FPE_DENORMAL   (1<<1)
 446 #define GFC_FPE_ZERO       (1<<2)
 447 #define GFC_FPE_OVERFLOW   (1<<3)
 448 #define GFC_FPE_UNDERFLOW  (1<<4)
 449 #define GFC_FPE_PRECISION  (1<<5)
 450
 451 /* This is returned by notification_std to know if, given the flags
 452    that were given (-std=, -pedantic) we should issue an error, a warning
 453    or nothing.  */
 454 typedef enum
 455 { SILENT, WARNING, ERROR }
 456 notification;
 457
 458 /* This is returned by notify_std and several io functions.  */
 459 typedef enum
 460 { SUCCESS = 1, FAILURE }
 461 try;
 462
 463 /* The filename and line number don't go inside the globals structure.
 464    They are set by the rest of the program and must be linked to.  */
 465
 466 /* Location of the current library call (optional).  */
 467 extern unsigned line;
 468 iexport_data_proto(line);
 469
 470 extern char *filename;
 471 iexport_data_proto(filename);
 472
 473 /* Avoid conflicting prototypes of alloca() in system headers by using
 474    GCC's builtin alloca().  */
 475 #define gfc_alloca(x)  __builtin_alloca(x)
 476
 477
 478 /* main.c */
 479
 480 extern void stupid_function_name_for_static_linking (void);
 481 internal_proto(stupid_function_name_for_static_linking);
 482
 483 struct st_parameter_common;
 484 extern void library_start (struct st_parameter_common *);
 485 internal_proto(library_start);
 486
 487 #define library_end()
 488
 489 extern void set_args (int, char **);
 490 export_proto(set_args);
 491
 492 extern void get_args (int *, char ***);
 493 internal_proto(get_args);
 494
 495 /* error.c */
 496
 497 #define GFC_ITOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 2)
 498 #define GFC_XTOA_BUF_SIZE (sizeof (GFC_UINTEGER_LARGEST) * 2 + 1)
 499 #define GFC_OTOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 1)
 500 #define GFC_BTOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 8 + 1)
 501
 502 extern const char *gfc_itoa (GFC_INTEGER_LARGEST, char *, size_t);
 503 internal_proto(gfc_itoa);
 504
 505 extern const char *xtoa (GFC_UINTEGER_LARGEST, char *, size_t);
 506 internal_proto(xtoa);
 507
 508 extern void os_error (const char *) __attribute__ ((noreturn));
 509 internal_proto(os_error);
 510
 511 extern void show_locus (struct st_parameter_common *);
 512 internal_proto(show_locus);
 513
 514 extern void runtime_error (const char *) __attribute__ ((noreturn));
 515 iexport_proto(runtime_error);
 516
 517 extern void internal_error (struct st_parameter_common *, const char *)
 518   __attribute__ ((noreturn));
 519 internal_proto(internal_error);
 520
 521 extern const char *get_oserror (void);
 522 internal_proto(get_oserror);
 523
 524 extern void sys_exit (int) __attribute__ ((noreturn));
 525 internal_proto(sys_exit);
 526
 527 extern int st_printf (const char *, ...)
 528   __attribute__ ((format (printf, 1, 2)));
 529 internal_proto(st_printf);
 530
 531 extern void st_sprintf (char *, const char *, ...)
 532   __attribute__ ((format (printf, 2, 3)));
 533 internal_proto(st_sprintf);
 534
 535 extern const char *translate_error (int);
 536 internal_proto(translate_error);
 537
 538 extern void generate_error (struct st_parameter_common *, int, const char *);
 539 internal_proto(generate_error);
 540
 541 extern try notify_std (struct st_parameter_common *, int, const char *);
 542 internal_proto(notify_std);
 543
 544 /* fpu.c */
 545
 546 extern void set_fpu (void);
 547 internal_proto(set_fpu);
 548
 549 /* memory.c */
 550
 551 extern void *get_mem (size_t) __attribute__ ((malloc));
 552 internal_proto(get_mem);
 553
 554 extern void free_mem (void *);
 555 internal_proto(free_mem);
 556
 557 extern void *internal_malloc_size (size_t);
 558 internal_proto(internal_malloc_size);
 559
 560 extern void internal_free (void *);
 561 iexport_proto(internal_free);
 562
 563 /* environ.c */
 564
 565 extern int check_buffered (int);
 566 internal_proto(check_buffered);
 567
 568 extern void init_variables (void);
 569 internal_proto(init_variables);
 570
 571 extern void show_variables (void);
 572 internal_proto(show_variables);
 573
 574 /* string.c */
 575
 576 extern int find_option (struct st_parameter_common *, const char *, int,
 577                         const st_option *, const char *);
 578 internal_proto(find_option);
 579
 580 extern int fstrlen (const char *, int);
 581 internal_proto(fstrlen);
 582
 583 extern void fstrcpy (char *, int, const char *, int);
 584 internal_proto(fstrcpy);
 585
 586 extern void cf_strcpy (char *, int, const char *);
 587 internal_proto(cf_strcpy);
 588
 589 /* io.c */
 590
 591 extern void init_units (void);
 592 internal_proto(init_units);
 593
 594 extern void close_units (void);
 595 internal_proto(close_units);
 596
 597 extern int unit_to_fd (int);
 598 internal_proto(unit_to_fd);
 599
 600 /* stop.c */
 601
 602 extern void stop_numeric (GFC_INTEGER_4);
 603 iexport_proto(stop_numeric);
 604
 605 /* reshape_packed.c */
 606
 607 extern void reshape_packed (char *, index_type, const char *, index_type,
 608                             const char *, index_type);
 609 internal_proto(reshape_packed);
 610
 611 /* Repacking functions.  */
 612
 613 /* ??? These aren't currently used by the compiler, though we
 614    certainly could do so.  */
 615 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
 616 internal_proto(internal_pack_4);
 617
 618 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
 619 internal_proto(internal_pack_8);
 620
 621 #if defined HAVE_GFC_INTEGER_16
 622 GFC_INTEGER_16 *internal_pack_16 (gfc_array_i16 *);
 623 internal_proto(internal_pack_16);
 624 #endif
 625
 626 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
 627 internal_proto(internal_pack_c4);
 628
 629 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
 630 internal_proto(internal_pack_c8);
 631
 632 #if defined HAVE_GFC_COMPLEX_10
 633 GFC_COMPLEX_10 *internal_pack_c10 (gfc_array_c10 *);
 634 internal_proto(internal_pack_c10);
 635 #endif
 636
 637 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
 638 internal_proto(internal_unpack_4);
 639
 640 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
 641 internal_proto(internal_unpack_8);
 642
 643 #if defined HAVE_GFC_INTEGER_16
 644 extern void internal_unpack_16 (gfc_array_i16 *, const GFC_INTEGER_16 *);
 645 internal_proto(internal_unpack_16);
 646 #endif
 647
 648 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
 649 internal_proto(internal_unpack_c4);
 650
 651 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
 652 internal_proto(internal_unpack_c8);
 653
 654 #if defined HAVE_GFC_COMPLEX_10
 655 extern void internal_unpack_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *);
 656 internal_proto(internal_unpack_c10);
 657 #endif
 658
 659 #if defined HAVE_GFC_COMPLEX_16
 660 extern void internal_unpack_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *);
 661 internal_proto(internal_unpack_c16);
 662 #endif
 663
 664 /* string_intrinsics.c */
 665
 666 extern GFC_INTEGER_4 compare_string (GFC_INTEGER_4, const char *,
 667                                      GFC_INTEGER_4, const char *);
 668 iexport_proto(compare_string);
 669
 670 /* random.c */
 671
 672 extern void random_seed (GFC_INTEGER_4 * size, gfc_array_i4 * put,
 673                          gfc_array_i4 * get);
 674 iexport_proto(random_seed);
 675
 676 /* size.c */
 677
 678 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
 679
 680 extern index_type size0 (const array_t * array);
 681 iexport_proto(size0);
 682
 683 #endif  /* LIBGFOR_H  */