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[official-gcc.git] / libgfortran / libgfortran.h
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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>
6 This file is part of the GNU Fortran 95 runtime library (libgfortran).
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.
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.
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. */
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. */
31 #ifndef LIBGFOR_H
32 #define LIBGFOR_H
34 #include <math.h>
35 #include <stddef.h>
36 #include <float.h>
38 #ifndef M_PI
39 #define M_PI 3.14159265358979323846264338327
40 #endif
42 #if HAVE_COMPLEX_H
43 # include <complex.h>
44 #else
45 #define complex __complex__
46 #endif
48 #include "config.h"
49 #include "c99_protos.h"
51 #if HAVE_IEEEFP_H
52 #include <ieeefp.h>
53 #endif
55 #include "gstdint.h"
57 #if HAVE_SYS_TYPES_H
58 #include <sys/types.h>
59 #endif
60 typedef off_t gfc_offset;
62 #ifndef NULL
63 #define NULL (void *) 0
64 #endif
66 #ifndef __GNUC__
67 #define __attribute__(x)
68 #endif
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
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)
83 /* There are several classifications of routines:
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.
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.
94 One of the following should be used immediately after the declaration
95 of each symbol:
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.
102 export_proto Marks a symbol to be exported, and adds PREFIX
103 to the assembly-level symbol name.
105 export_proto_np Marks a symbol to be exported without adding PREFIX.
107 iexport_proto Marks a function to be exported, but with the
108 understanding that it can be used inside as well.
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.
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. */
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
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
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
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
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.
161 Also, isfinite is broken on Cygwin.
163 When isfinite is not available, try to use one of the
164 alternatives, or bail out. */
166 #if defined(HAVE_BROKEN_ISFINITE) || defined(__CYGWIN__)
167 #undef isfinite
168 #endif
170 #if defined(HAVE_BROKEN_ISNAN)
171 #undef isnan
172 #endif
174 #if defined(HAVE_BROKEN_FPCLASSIFY)
175 #undef fpclassify
176 #endif
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) */
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) */
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_);}
199 #include "kinds.h"
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
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;
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);
224 #define GFOR_POINTER_L8_TO_L4(p8) \
225 (l8_to_l4_offset + (GFC_LOGICAL_4 *)(p8))
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
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
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
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
263 #ifndef GFC_MAX_DIMENSIONS
264 #define GFC_MAX_DIMENSIONS 7
265 #endif
267 typedef struct descriptor_dimension
269 index_type stride;
270 index_type lbound;
271 index_type ubound;
273 descriptor_dimension;
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];\
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
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
318 enum
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
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)
337 /* Runtime library include. */
338 #define stringize(x) expand_macro(x)
339 #define expand_macro(x) # x
341 /* Runtime options structure. */
343 typedef struct
345 int stdin_unit, stdout_unit, stderr_unit, optional_plus;
346 int allocate_init_flag, allocate_init_value;
347 int locus;
349 int separator_len;
350 const char *separator;
352 int mem_check;
353 int use_stderr, all_unbuffered, default_recl;
355 int fpu_round, fpu_precision, fpe;
357 int sighup, sigint;
358 int dump_core;
360 options_t;
362 extern options_t options;
363 internal_proto(options);
366 /* Compile-time options that will influence the library. */
368 typedef struct
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;
378 compile_options_t;
380 extern compile_options_t compile_options;
381 internal_proto(compile_options);
383 extern void init_compile_options (void);
384 internal_proto(init_compile_options);
386 #define GFC_MAX_SUBRECORD_LENGTH 2147483639 /* 2**31 - 9 */
388 /* Structure for statement options. */
390 typedef struct
392 const char *name;
393 int value;
395 st_option;
397 /* Runtime errors. The EOR and EOF errors are required to be negative. */
399 typedef enum
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. */
425 error_codes;
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. */
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)
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;
455 /* This is returned by notify_std and several io functions. */
456 typedef enum
457 { SUCCESS = 1, FAILURE }
458 try;
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. */
463 /* Location of the current library call (optional). */
464 extern unsigned line;
465 iexport_data_proto(line);
467 extern char *filename;
468 iexport_data_proto(filename);
470 /* Avoid conflicting prototypes of alloca() in system headers by using
471 GCC's builtin alloca(). */
472 #define gfc_alloca(x) __builtin_alloca(x)
475 /* Various I/O stuff also used in other parts of the library. */
477 #define DEFAULT_TEMPDIR "/tmp"
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
484 typedef enum
485 { CONVERT_NONE=-1, CONVERT_NATIVE, CONVERT_SWAP, CONVERT_BIG, CONVERT_LITTLE }
486 unit_convert;
488 #define CHARACTER2(name) \
489 gfc_charlen_type name ## _len; \
490 char * name
492 typedef struct st_parameter_common
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;
501 st_parameter_common;
503 #undef CHARACTER2
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)
516 #define IOPARM_COMMON_MASK ((1 << 7) - 1)
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)
531 /* main.c */
533 extern void stupid_function_name_for_static_linking (void);
534 internal_proto(stupid_function_name_for_static_linking);
536 extern void library_start (st_parameter_common *);
537 internal_proto(library_start);
539 #define library_end()
541 extern void set_args (int, char **);
542 export_proto(set_args);
544 extern void get_args (int *, char ***);
545 internal_proto(get_args);
547 /* error.c */
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)
554 extern void sys_exit (int) __attribute__ ((noreturn));
555 internal_proto(sys_exit);
557 extern const char *gfc_itoa (GFC_INTEGER_LARGEST, char *, size_t);
558 internal_proto(gfc_itoa);
560 extern const char *xtoa (GFC_UINTEGER_LARGEST, char *, size_t);
561 internal_proto(xtoa);
563 extern void os_error (const char *) __attribute__ ((noreturn));
564 internal_proto(os_error);
566 extern void show_locus (st_parameter_common *);
567 internal_proto(show_locus);
569 extern void runtime_error (const char *) __attribute__ ((noreturn));
570 iexport_proto(runtime_error);
572 extern void internal_error (st_parameter_common *, const char *)
573 __attribute__ ((noreturn));
574 internal_proto(internal_error);
576 extern const char *get_oserror (void);
577 internal_proto(get_oserror);
579 extern void st_sprintf (char *, const char *, ...)
580 __attribute__ ((format (printf, 2, 3)));
581 internal_proto(st_sprintf);
583 extern const char *translate_error (int);
584 internal_proto(translate_error);
586 extern void generate_error (st_parameter_common *, int, const char *);
587 internal_proto(generate_error);
589 extern try notify_std (st_parameter_common *, int, const char *);
590 internal_proto(notify_std);
592 extern notification notification_std(int);
593 internal_proto(notification_std);
595 /* fpu.c */
597 extern void set_fpu (void);
598 internal_proto(set_fpu);
600 /* memory.c */
602 extern void *get_mem (size_t) __attribute__ ((malloc));
603 internal_proto(get_mem);
605 extern void free_mem (void *);
606 internal_proto(free_mem);
608 extern void *internal_malloc_size (size_t);
609 internal_proto(internal_malloc_size);
611 extern void internal_free (void *);
612 iexport_proto(internal_free);
614 /* environ.c */
616 extern int check_buffered (int);
617 internal_proto(check_buffered);
619 extern void init_variables (void);
620 internal_proto(init_variables);
622 extern void show_variables (void);
623 internal_proto(show_variables);
625 unit_convert get_unformatted_convert (int);
626 internal_proto(get_unformatted_convert);
628 /* string.c */
630 extern int find_option (st_parameter_common *, const char *, int,
631 const st_option *, const char *);
632 internal_proto(find_option);
634 extern int fstrlen (const char *, int);
635 internal_proto(fstrlen);
637 extern void fstrcpy (char *, int, const char *, int);
638 internal_proto(fstrcpy);
640 extern void cf_strcpy (char *, int, const char *);
641 internal_proto(cf_strcpy);
643 /* io.c */
645 extern void init_units (void);
646 internal_proto(init_units);
648 extern void close_units (void);
649 internal_proto(close_units);
651 extern int unit_to_fd (int);
652 internal_proto(unit_to_fd);
654 extern int st_printf (const char *, ...)
655 __attribute__ ((format (printf, 1, 2)));
656 internal_proto(st_printf);
658 /* stop.c */
660 extern void stop_numeric (GFC_INTEGER_4);
661 iexport_proto(stop_numeric);
663 /* reshape_packed.c */
665 extern void reshape_packed (char *, index_type, const char *, index_type,
666 const char *, index_type);
667 internal_proto(reshape_packed);
669 /* Repacking functions. */
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);
676 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
677 internal_proto(internal_pack_8);
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
684 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
685 internal_proto(internal_pack_c4);
687 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
688 internal_proto(internal_pack_c8);
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
695 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
696 internal_proto(internal_unpack_4);
698 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
699 internal_proto(internal_unpack_8);
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
706 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
707 internal_proto(internal_unpack_c4);
709 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
710 internal_proto(internal_unpack_c8);
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
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
722 /* string_intrinsics.c */
724 extern GFC_INTEGER_4 compare_string (GFC_INTEGER_4, const char *,
725 GFC_INTEGER_4, const char *);
726 iexport_proto(compare_string);
728 /* random.c */
730 extern void random_seed (GFC_INTEGER_4 * size, gfc_array_i4 * put,
731 gfc_array_i4 * get);
732 iexport_proto(random_seed);
734 /* size.c */
736 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
738 extern index_type size0 (const array_t * array);
739 iexport_proto(size0);
741 #endif /* LIBGFOR_H */