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_1_HUGE \
 228   (GFC_INTEGER_1)((((GFC_UINTEGER_1)1) << 7) - 1)
 229 #define GFC_INTEGER_2_HUGE \
 230   (GFC_INTEGER_2)((((GFC_UINTEGER_2)1) << 15) - 1)
 231 #define GFC_INTEGER_4_HUGE \
 232   (GFC_INTEGER_4)((((GFC_UINTEGER_4)1) << 31) - 1)
 233 #define GFC_INTEGER_8_HUGE \
 234   (GFC_INTEGER_8)((((GFC_UINTEGER_8)1) << 63) - 1)
 235 #ifdef HAVE_GFC_INTEGER_16
 236 #define GFC_INTEGER_16_HUGE \
 237   (GFC_INTEGER_16)((((GFC_UINTEGER_16)1) << 127) - 1)
 238 #endif
 239
 240 #define GFC_REAL_4_HUGE FLT_MAX
 241 #define GFC_REAL_8_HUGE DBL_MAX
 242 #ifdef HAVE_GFC_REAL_10
 243 #define GFC_REAL_10_HUGE LDBL_MAX
 244 #endif
 245 #ifdef HAVE_GFC_REAL_16
 246 #define GFC_REAL_16_HUGE LDBL_MAX
 247 #endif
 248
 249 #define GFC_REAL_4_DIGITS FLT_MANT_DIG
 250 #define GFC_REAL_8_DIGITS DBL_MANT_DIG
 251 #ifdef HAVE_GFC_REAL_10
 252 #define GFC_REAL_10_DIGITS LDBL_MANT_DIG
 253 #endif
 254 #ifdef HAVE_GFC_REAL_16
 255 #define GFC_REAL_16_DIGITS LDBL_MANT_DIG
 256 #endif
 257
 258 #define GFC_REAL_4_RADIX FLT_RADIX
 259 #define GFC_REAL_8_RADIX FLT_RADIX
 260 #ifdef HAVE_GFC_REAL_10
 261 #define GFC_REAL_10_RADIX FLT_RADIX
 262 #endif
 263 #ifdef HAVE_GFC_REAL_16
 264 #define GFC_REAL_16_RADIX FLT_RADIX
 265 #endif
 266
 267 #ifndef GFC_MAX_DIMENSIONS
 268 #define GFC_MAX_DIMENSIONS 7
 269 #endif
 270
 271 typedef struct descriptor_dimension
 272 {
 273   index_type stride;
 274   index_type lbound;
 275   index_type ubound;
 276 }
 277 descriptor_dimension;
 278
 279 #define GFC_ARRAY_DESCRIPTOR(r, type) \
 280 struct {\
 281   type *data;\
 282   size_t offset;\
 283   index_type dtype;\
 284   descriptor_dimension dim[r];\
 285 }
 286
 287 /* Commonly used array descriptor types.  */
 288 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) gfc_array_void;
 289 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, char) gfc_array_char;
 290 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_1) gfc_array_i1;
 291 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_2) gfc_array_i2;
 292 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_4) gfc_array_i4;
 293 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_8) gfc_array_i8;
 294 #ifdef HAVE_GFC_INTEGER_16
 295 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_16) gfc_array_i16;
 296 #endif
 297 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_4) gfc_array_r4;
 298 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_8) gfc_array_r8;
 299 #ifdef HAVE_GFC_REAL_10
 300 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_10) gfc_array_r10;
 301 #endif
 302 #ifdef HAVE_GFC_REAL_16
 303 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_16) gfc_array_r16;
 304 #endif
 305 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_4) gfc_array_c4;
 306 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_8) gfc_array_c8;
 307 #ifdef HAVE_GFC_COMPLEX_10
 308 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_10) gfc_array_c10;
 309 #endif
 310 #ifdef HAVE_GFC_COMPLEX_16
 311 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_16) gfc_array_c16;
 312 #endif
 313 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_4) gfc_array_l4;
 314 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_8) gfc_array_l8;
 315 #ifdef HAVE_GFC_LOGICAL_16
 316 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_16) gfc_array_l16;
 317 #endif
 318
 319 #define GFC_DTYPE_RANK_MASK 0x07
 320 #define GFC_DTYPE_TYPE_SHIFT 3
 321 #define GFC_DTYPE_TYPE_MASK 0x38
 322 #define GFC_DTYPE_SIZE_SHIFT 6
 323
 324 enum
 325 {
 326   GFC_DTYPE_UNKNOWN = 0,
 327   GFC_DTYPE_INTEGER,
 328   /* TODO: recognize logical types.  */
 329   GFC_DTYPE_LOGICAL,
 330   GFC_DTYPE_REAL,
 331   GFC_DTYPE_COMPLEX,
 332   GFC_DTYPE_DERIVED,
 333   GFC_DTYPE_CHARACTER
 334 };
 335
 336 #define GFC_DESCRIPTOR_RANK(desc) ((desc)->dtype & GFC_DTYPE_RANK_MASK)
 337 #define GFC_DESCRIPTOR_TYPE(desc) (((desc)->dtype & GFC_DTYPE_TYPE_MASK) \
 338                                    >> GFC_DTYPE_TYPE_SHIFT)
 339 #define GFC_DESCRIPTOR_SIZE(desc) ((desc)->dtype >> GFC_DTYPE_SIZE_SHIFT)
 340 #define GFC_DESCRIPTOR_DATA(desc) ((desc)->data)
 341 #define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)
 342
 343 /* Runtime library include.  */
 344 #define stringize(x) expand_macro(x)
 345 #define expand_macro(x) # x
 346
 347 /* Runtime options structure.  */
 348
 349 typedef struct
 350 {
 351   int stdin_unit, stdout_unit, stderr_unit, optional_plus;
 352   int allocate_init_flag, allocate_init_value;
 353   int locus;
 354
 355   int separator_len;
 356   const char *separator;
 357
 358   int mem_check;
 359   int use_stderr, all_unbuffered, default_recl;
 360
 361   int fpu_round, fpu_precision, fpe;
 362
 363   int sighup, sigint;
 364   int dump_core;
 365 }
 366 options_t;
 367
 368 extern options_t options;
 369 internal_proto(options);
 370
 371
 372 /* Compile-time options that will influence the library.  */
 373
 374 typedef struct
 375 {
 376   int warn_std;
 377   int allow_std;
 378   int pedantic;
 379   int convert;
 380   int dump_core;
 381   size_t record_marker;
 382   int max_subrecord_length;
 383 }
 384 compile_options_t;
 385
 386 extern compile_options_t compile_options;
 387 internal_proto(compile_options);
 388
 389 extern void init_compile_options (void);
 390 internal_proto(init_compile_options);
 391
 392 #define GFC_MAX_SUBRECORD_LENGTH 2147483639   /* 2**31 - 9 */
 393
 394 /* Structure for statement options.  */
 395
 396 typedef struct
 397 {
 398   const char *name;
 399   int value;
 400 }
 401 st_option;
 402
 403 /* Runtime errors.  The EOR and EOF errors are required to be negative.  */
 404
 405 typedef enum
 406 {
 407   ERROR_FIRST = -3,             /* Marker for the first error.  */
 408   ERROR_EOR = -2,
 409   ERROR_END = -1,
 410   ERROR_OK = 0,                 /* Indicates success, must be zero.  */
 411   ERROR_OS = 5000,              /* Operating system error, more info in errno.  */
 412   ERROR_OPTION_CONFLICT,
 413   ERROR_BAD_OPTION,
 414   ERROR_MISSING_OPTION,
 415   ERROR_ALREADY_OPEN,
 416   ERROR_BAD_UNIT,
 417   ERROR_FORMAT,
 418   ERROR_BAD_ACTION,
 419   ERROR_ENDFILE,
 420   ERROR_BAD_US,
 421   ERROR_READ_VALUE,
 422   ERROR_READ_OVERFLOW,
 423   ERROR_INTERNAL,
 424   ERROR_INTERNAL_UNIT,
 425   ERROR_ALLOCATION,
 426   ERROR_DIRECT_EOR,
 427   ERROR_SHORT_RECORD,
 428   ERROR_CORRUPT_FILE,
 429   ERROR_LAST                    /* Not a real error, the last error # + 1.  */
 430 }
 431 error_codes;
 432
 433
 434 /* Flags to specify which standard/extension contains a feature.
 435    Keep them in sync with their counterparts in gcc/fortran/gfortran.h.  */
 436 #define GFC_STD_LEGACY          (1<<6) /* Backward compatibility.  */
 437 #define GFC_STD_GNU             (1<<5)    /* GNU Fortran extension.  */
 438 #define GFC_STD_F2003           (1<<4)    /* New in F2003.  */
 439 /* Note that no features were obsoleted nor deleted in F2003.  */
 440 #define GFC_STD_F95             (1<<3)    /* New in F95.  */
 441 #define GFC_STD_F95_DEL         (1<<2)    /* Deleted in F95.  */
 442 #define GFC_STD_F95_OBS         (1<<1)    /* Obsoleted in F95.  */
 443 #define GFC_STD_F77             (1<<0)    /* Up to and including F77.  */
 444
 445 /* Bitmasks for the various FPE that can be enabled.
 446    Keep them in sync with their counterparts in gcc/fortran/gfortran.h.  */
 447 #define GFC_FPE_INVALID    (1<<0)
 448 #define GFC_FPE_DENORMAL   (1<<1)
 449 #define GFC_FPE_ZERO       (1<<2)
 450 #define GFC_FPE_OVERFLOW   (1<<3)
 451 #define GFC_FPE_UNDERFLOW  (1<<4)
 452 #define GFC_FPE_PRECISION  (1<<5)
 453
 454 /* This is returned by notification_std to know if, given the flags
 455    that were given (-std=, -pedantic) we should issue an error, a warning
 456    or nothing.  */
 457 typedef enum
 458 { SILENT, WARNING, ERROR }
 459 notification;
 460
 461 /* This is returned by notify_std and several io functions.  */
 462 typedef enum
 463 { SUCCESS = 1, FAILURE }
 464 try;
 465
 466 /* The filename and line number don't go inside the globals structure.
 467    They are set by the rest of the program and must be linked to.  */
 468
 469 /* Location of the current library call (optional).  */
 470 extern unsigned line;
 471 iexport_data_proto(line);
 472
 473 extern char *filename;
 474 iexport_data_proto(filename);
 475
 476 /* Avoid conflicting prototypes of alloca() in system headers by using
 477    GCC's builtin alloca().  */
 478 #define gfc_alloca(x)  __builtin_alloca(x)
 479
 480
 481 /* Various I/O stuff also used in other parts of the library.  */
 482
 483 #define DEFAULT_TEMPDIR "/tmp"
 484
 485 /* The default value of record length for preconnected units is defined
 486    here. This value can be overriden by an environment variable.
 487    Default value is 1 Gb.  */
 488 #define DEFAULT_RECL 1073741824
 489
 490 typedef enum
 491 { CONVERT_NONE=-1, CONVERT_NATIVE, CONVERT_SWAP, CONVERT_BIG, CONVERT_LITTLE }
 492 unit_convert;
 493
 494 #define CHARACTER2(name) \
 495               gfc_charlen_type name ## _len; \
 496               char * name
 497
 498 typedef struct st_parameter_common
 499 {
 500   GFC_INTEGER_4 flags;
 501   GFC_INTEGER_4 unit;
 502   const char *filename;
 503   GFC_INTEGER_4 line;
 504   CHARACTER2 (iomsg);
 505   GFC_INTEGER_4 *iostat;
 506 }
 507 st_parameter_common;
 508
 509 #undef CHARACTER2
 510
 511 #define IOPARM_LIBRETURN_MASK           (3 << 0)
 512 #define IOPARM_LIBRETURN_OK             (0 << 0)
 513 #define IOPARM_LIBRETURN_ERROR          (1 << 0)
 514 #define IOPARM_LIBRETURN_END            (2 << 0)
 515 #define IOPARM_LIBRETURN_EOR            (3 << 0)
 516 #define IOPARM_ERR                      (1 << 2)
 517 #define IOPARM_END                      (1 << 3)
 518 #define IOPARM_EOR                      (1 << 4)
 519 #define IOPARM_HAS_IOSTAT               (1 << 5)
 520 #define IOPARM_HAS_IOMSG                (1 << 6)
 521
 522 #define IOPARM_COMMON_MASK              ((1 << 7) - 1)
 523
 524 #define IOPARM_OPEN_HAS_RECL_IN         (1 << 7)
 525 #define IOPARM_OPEN_HAS_FILE            (1 << 8)
 526 #define IOPARM_OPEN_HAS_STATUS          (1 << 9)
 527 #define IOPARM_OPEN_HAS_ACCESS          (1 << 10)
 528 #define IOPARM_OPEN_HAS_FORM            (1 << 11)
 529 #define IOPARM_OPEN_HAS_BLANK           (1 << 12)
 530 #define IOPARM_OPEN_HAS_POSITION        (1 << 13)
 531 #define IOPARM_OPEN_HAS_ACTION          (1 << 14)
 532 #define IOPARM_OPEN_HAS_DELIM           (1 << 15)
 533 #define IOPARM_OPEN_HAS_PAD             (1 << 16)
 534 #define IOPARM_OPEN_HAS_CONVERT         (1 << 17)
 535
 536
 537 /* main.c */
 538
 539 extern void stupid_function_name_for_static_linking (void);
 540 internal_proto(stupid_function_name_for_static_linking);
 541
 542 extern void library_start (st_parameter_common *);
 543 internal_proto(library_start);
 544
 545 #define library_end()
 546
 547 extern void set_args (int, char **);
 548 export_proto(set_args);
 549
 550 extern void get_args (int *, char ***);
 551 internal_proto(get_args);
 552
 553 /* error.c */
 554
 555 #define GFC_ITOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 2)
 556 #define GFC_XTOA_BUF_SIZE (sizeof (GFC_UINTEGER_LARGEST) * 2 + 1)
 557 #define GFC_OTOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 1)
 558 #define GFC_BTOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 8 + 1)
 559
 560 extern void sys_exit (int) __attribute__ ((noreturn));
 561 internal_proto(sys_exit);
 562
 563 extern const char *gfc_itoa (GFC_INTEGER_LARGEST, char *, size_t);
 564 internal_proto(gfc_itoa);
 565
 566 extern const char *xtoa (GFC_UINTEGER_LARGEST, char *, size_t);
 567 internal_proto(xtoa);
 568
 569 extern void os_error (const char *) __attribute__ ((noreturn));
 570 internal_proto(os_error);
 571
 572 extern void show_locus (st_parameter_common *);
 573 internal_proto(show_locus);
 574
 575 extern void runtime_error (const char *) __attribute__ ((noreturn));
 576 iexport_proto(runtime_error);
 577
 578 extern void internal_error (st_parameter_common *, const char *)
 579   __attribute__ ((noreturn));
 580 internal_proto(internal_error);
 581
 582 extern const char *get_oserror (void);
 583 internal_proto(get_oserror);
 584
 585 extern void st_sprintf (char *, const char *, ...)
 586   __attribute__ ((format (printf, 2, 3)));
 587 internal_proto(st_sprintf);
 588
 589 extern const char *translate_error (int);
 590 internal_proto(translate_error);
 591
 592 extern void generate_error (st_parameter_common *, int, const char *);
 593 internal_proto(generate_error);
 594
 595 extern try notify_std (st_parameter_common *, int, const char *);
 596 internal_proto(notify_std);
 597
 598 extern notification notification_std(int);
 599 internal_proto(notification_std);
 600
 601 /* fpu.c */
 602
 603 extern void set_fpu (void);
 604 internal_proto(set_fpu);
 605
 606 /* memory.c */
 607
 608 extern void *get_mem (size_t) __attribute__ ((malloc));
 609 internal_proto(get_mem);
 610
 611 extern void free_mem (void *);
 612 internal_proto(free_mem);
 613
 614 extern void *internal_malloc_size (size_t);
 615 internal_proto(internal_malloc_size);
 616
 617 extern void internal_free (void *);
 618 iexport_proto(internal_free);
 619
 620 /* environ.c */
 621
 622 extern int check_buffered (int);
 623 internal_proto(check_buffered);
 624
 625 extern void init_variables (void);
 626 internal_proto(init_variables);
 627
 628 extern void show_variables (void);
 629 internal_proto(show_variables);
 630
 631 unit_convert get_unformatted_convert (int);
 632 internal_proto(get_unformatted_convert);
 633
 634 /* string.c */
 635
 636 extern int find_option (st_parameter_common *, const char *, int,
 637                         const st_option *, const char *);
 638 internal_proto(find_option);
 639
 640 extern int fstrlen (const char *, int);
 641 internal_proto(fstrlen);
 642
 643 extern void fstrcpy (char *, int, const char *, int);
 644 internal_proto(fstrcpy);
 645
 646 extern void cf_strcpy (char *, int, const char *);
 647 internal_proto(cf_strcpy);
 648
 649 /* io.c */
 650
 651 extern void init_units (void);
 652 internal_proto(init_units);
 653
 654 extern void close_units (void);
 655 internal_proto(close_units);
 656
 657 extern int unit_to_fd (int);
 658 internal_proto(unit_to_fd);
 659
 660 extern int st_printf (const char *, ...)
 661   __attribute__ ((format (printf, 1, 2)));
 662 internal_proto(st_printf);
 663
 664 /* stop.c */
 665
 666 extern void stop_numeric (GFC_INTEGER_4);
 667 iexport_proto(stop_numeric);
 668
 669 /* reshape_packed.c */
 670
 671 extern void reshape_packed (char *, index_type, const char *, index_type,
 672                             const char *, index_type);
 673 internal_proto(reshape_packed);
 674
 675 /* Repacking functions.  */
 676
 677 /* ??? These aren't currently used by the compiler, though we
 678    certainly could do so.  */
 679 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
 680 internal_proto(internal_pack_4);
 681
 682 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
 683 internal_proto(internal_pack_8);
 684
 685 #if defined HAVE_GFC_INTEGER_16
 686 GFC_INTEGER_16 *internal_pack_16 (gfc_array_i16 *);
 687 internal_proto(internal_pack_16);
 688 #endif
 689
 690 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
 691 internal_proto(internal_pack_c4);
 692
 693 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
 694 internal_proto(internal_pack_c8);
 695
 696 #if defined HAVE_GFC_COMPLEX_10
 697 GFC_COMPLEX_10 *internal_pack_c10 (gfc_array_c10 *);
 698 internal_proto(internal_pack_c10);
 699 #endif
 700
 701 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
 702 internal_proto(internal_unpack_4);
 703
 704 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
 705 internal_proto(internal_unpack_8);
 706
 707 #if defined HAVE_GFC_INTEGER_16
 708 extern void internal_unpack_16 (gfc_array_i16 *, const GFC_INTEGER_16 *);
 709 internal_proto(internal_unpack_16);
 710 #endif
 711
 712 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
 713 internal_proto(internal_unpack_c4);
 714
 715 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
 716 internal_proto(internal_unpack_c8);
 717
 718 #if defined HAVE_GFC_COMPLEX_10
 719 extern void internal_unpack_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *);
 720 internal_proto(internal_unpack_c10);
 721 #endif
 722
 723 #if defined HAVE_GFC_COMPLEX_16
 724 extern void internal_unpack_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *);
 725 internal_proto(internal_unpack_c16);
 726 #endif
 727
 728 /* string_intrinsics.c */
 729
 730 extern GFC_INTEGER_4 compare_string (GFC_INTEGER_4, const char *,
 731                                      GFC_INTEGER_4, const char *);
 732 iexport_proto(compare_string);
 733
 734 /* random.c */
 735
 736 extern void random_seed (GFC_INTEGER_4 * size, gfc_array_i4 * put,
 737                          gfc_array_i4 * get);
 738 iexport_proto(random_seed);
 739
 740 /* size.c */
 741
 742 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
 743
 744 extern index_type size0 (const array_t * array);
 745 iexport_proto(size0);
 746
 747 #endif  /* LIBGFOR_H  */