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comparison lib/stdio.in.h @ 272:d5392bb5da3c 2.5

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271:3b793ba7a6c6 272:d5392bb5da3c
1 /* A GNU-like <stdio.h>.
2
3 Copyright (C) 2004, 2007-2008 Free Software Foundation, Inc.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3, or (at your option)
8 any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18
19 #if __GNUC__ >= 3
20 @PRAGMA_SYSTEM_HEADER@
21 #endif
22
23 #if defined __need_FILE || defined __need___FILE
24 /* Special invocation convention inside glibc header files. */
25
26 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
27
28 #else
29 /* Normal invocation convention. */
30
31 #ifndef _GL_STDIO_H
32
33 /* The include_next requires a split double-inclusion guard. */
34 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
35
36 #ifndef _GL_STDIO_H
37 #define _GL_STDIO_H
38
39 #include <stdarg.h>
40 #include <stddef.h>
41
42 #if (@GNULIB_FSEEKO@ && @REPLACE_FSEEKO@) \
43 || (@GNULIB_FTELLO@ && @REPLACE_FTELLO@) \
44 || (@GNULIB_GETDELIM@ && !@HAVE_DECL_GETDELIM@) \
45 || (@GNULIB_GETLINE@ && (!@HAVE_DECL_GETLINE@ || @REPLACE_GETLINE@))
46 /* Get off_t and ssize_t. */
47 # include <sys/types.h>
48 #endif
49
50 #ifndef __attribute__
51 /* This feature is available in gcc versions 2.5 and later. */
52 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
53 # define __attribute__(Spec) /* empty */
54 # endif
55 /* The __-protected variants of `format' and `printf' attributes
56 are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
57 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
58 # define __format__ format
59 # define __printf__ printf
60 # endif
61 #endif
62
63
64 /* The definition of GL_LINK_WARNING is copied here. */
65
66
67 #ifdef __cplusplus
68 extern "C" {
69 #endif
70
71
72 #if @GNULIB_FPRINTF_POSIX@
73 # if @REPLACE_FPRINTF@
74 # define fprintf rpl_fprintf
75 extern int fprintf (FILE *fp, const char *format, ...)
76 __attribute__ ((__format__ (__printf__, 2, 3)));
77 # endif
78 #elif @GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
79 # define fprintf rpl_fprintf
80 extern int fprintf (FILE *fp, const char *format, ...)
81 __attribute__ ((__format__ (__printf__, 2, 3)));
82 #elif defined GNULIB_POSIXCHECK
83 # undef fprintf
84 # define fprintf \
85 (GL_LINK_WARNING ("fprintf is not always POSIX compliant - " \
86 "use gnulib module fprintf-posix for portable " \
87 "POSIX compliance"), \
88 fprintf)
89 #endif
90
91 #if @GNULIB_VFPRINTF_POSIX@
92 # if @REPLACE_VFPRINTF@
93 # define vfprintf rpl_vfprintf
94 extern int vfprintf (FILE *fp, const char *format, va_list args)
95 __attribute__ ((__format__ (__printf__, 2, 0)));
96 # endif
97 #elif @GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
98 # define vfprintf rpl_vfprintf
99 extern int vfprintf (FILE *fp, const char *format, va_list args)
100 __attribute__ ((__format__ (__printf__, 2, 0)));
101 #elif defined GNULIB_POSIXCHECK
102 # undef vfprintf
103 # define vfprintf(s,f,a) \
104 (GL_LINK_WARNING ("vfprintf is not always POSIX compliant - " \
105 "use gnulib module vfprintf-posix for portable " \
106 "POSIX compliance"), \
107 vfprintf (s, f, a))
108 #endif
109
110 #if @GNULIB_PRINTF_POSIX@
111 # if @REPLACE_PRINTF@
112 /* Don't break __attribute__((format(printf,M,N))). */
113 # define printf __printf__
114 extern int printf (const char *format, ...)
115 __attribute__ ((__format__ (__printf__, 1, 2)));
116 # endif
117 #elif @GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
118 /* Don't break __attribute__((format(printf,M,N))). */
119 # define printf __printf__
120 extern int printf (const char *format, ...)
121 __attribute__ ((__format__ (__printf__, 1, 2)));
122 #elif defined GNULIB_POSIXCHECK
123 # undef printf
124 # define printf \
125 (GL_LINK_WARNING ("printf is not always POSIX compliant - " \
126 "use gnulib module printf-posix for portable " \
127 "POSIX compliance"), \
128 printf)
129 /* Don't break __attribute__((format(printf,M,N))). */
130 # define format(kind,m,n) format (__##kind##__, m, n)
131 # define __format__(kind,m,n) __format__ (__##kind##__, m, n)
132 # define ____printf____ __printf__
133 # define ____scanf____ __scanf__
134 # define ____strftime____ __strftime__
135 # define ____strfmon____ __strfmon__
136 #endif
137
138 #if @GNULIB_VPRINTF_POSIX@
139 # if @REPLACE_VPRINTF@
140 # define vprintf rpl_vprintf
141 extern int vprintf (const char *format, va_list args)
142 __attribute__ ((__format__ (__printf__, 1, 0)));
143 # endif
144 #elif @GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
145 # define vprintf rpl_vprintf
146 extern int vprintf (const char *format, va_list args)
147 __attribute__ ((__format__ (__printf__, 1, 0)));
148 #elif defined GNULIB_POSIXCHECK
149 # undef vprintf
150 # define vprintf(f,a) \
151 (GL_LINK_WARNING ("vprintf is not always POSIX compliant - " \
152 "use gnulib module vprintf-posix for portable " \
153 "POSIX compliance"), \
154 vprintf (f, a))
155 #endif
156
157 #if @GNULIB_SNPRINTF@
158 # if @REPLACE_SNPRINTF@
159 # define snprintf rpl_snprintf
160 # endif
161 # if @REPLACE_SNPRINTF@ || !@HAVE_DECL_SNPRINTF@
162 extern int snprintf (char *str, size_t size, const char *format, ...)
163 __attribute__ ((__format__ (__printf__, 3, 4)));
164 # endif
165 #elif defined GNULIB_POSIXCHECK
166 # undef snprintf
167 # define snprintf \
168 (GL_LINK_WARNING ("snprintf is unportable - " \
169 "use gnulib module snprintf for portability"), \
170 snprintf)
171 #endif
172
173 #if @GNULIB_VSNPRINTF@
174 # if @REPLACE_VSNPRINTF@
175 # define vsnprintf rpl_vsnprintf
176 # endif
177 # if @REPLACE_VSNPRINTF@ || !@HAVE_DECL_VSNPRINTF@
178 extern int vsnprintf (char *str, size_t size, const char *format, va_list args)
179 __attribute__ ((__format__ (__printf__, 3, 0)));
180 # endif
181 #elif defined GNULIB_POSIXCHECK
182 # undef vsnprintf
183 # define vsnprintf(b,s,f,a) \
184 (GL_LINK_WARNING ("vsnprintf is unportable - " \
185 "use gnulib module vsnprintf for portability"), \
186 vsnprintf (b, s, f, a))
187 #endif
188
189 #if @GNULIB_SPRINTF_POSIX@
190 # if @REPLACE_SPRINTF@
191 # define sprintf rpl_sprintf
192 extern int sprintf (char *str, const char *format, ...)
193 __attribute__ ((__format__ (__printf__, 2, 3)));
194 # endif
195 #elif defined GNULIB_POSIXCHECK
196 # undef sprintf
197 # define sprintf \
198 (GL_LINK_WARNING ("sprintf is not always POSIX compliant - " \
199 "use gnulib module sprintf-posix for portable " \
200 "POSIX compliance"), \
201 sprintf)
202 #endif
203
204 #if @GNULIB_VSPRINTF_POSIX@
205 # if @REPLACE_VSPRINTF@
206 # define vsprintf rpl_vsprintf
207 extern int vsprintf (char *str, const char *format, va_list args)
208 __attribute__ ((__format__ (__printf__, 2, 0)));
209 # endif
210 #elif defined GNULIB_POSIXCHECK
211 # undef vsprintf
212 # define vsprintf(b,f,a) \
213 (GL_LINK_WARNING ("vsprintf is not always POSIX compliant - " \
214 "use gnulib module vsprintf-posix for portable " \
215 "POSIX compliance"), \
216 vsprintf (b, f, a))
217 #endif
218
219 #if @GNULIB_VASPRINTF@
220 # if @REPLACE_VASPRINTF@
221 # define asprintf rpl_asprintf
222 # define vasprintf rpl_vasprintf
223 # endif
224 # if @REPLACE_VASPRINTF@ || !@HAVE_VASPRINTF@
225 /* Write formatted output to a string dynamically allocated with malloc().
226 If the memory allocation succeeds, store the address of the string in
227 *RESULT and return the number of resulting bytes, excluding the trailing
228 NUL. Upon memory allocation error, or some other error, return -1. */
229 extern int asprintf (char **result, const char *format, ...)
230 __attribute__ ((__format__ (__printf__, 2, 3)));
231 extern int vasprintf (char **result, const char *format, va_list args)
232 __attribute__ ((__format__ (__printf__, 2, 0)));
233 # endif
234 #endif
235
236 #if @GNULIB_OBSTACK_PRINTF@
237 # if @REPLACE_OBSTACK_PRINTF@
238 # define obstack_printf rpl_osbtack_printf
239 # define obstack_vprintf rpl_obstack_vprintf
240 # endif
241 # if @REPLACE_OBSTACK_PRINTF@ || !@HAVE_DECL_OBSTACK_PRINTF@
242 struct obstack;
243 /* Grow an obstack with formatted output. Return the number of
244 bytes added to OBS. No trailing nul byte is added, and the
245 object should be closed with obstack_finish before use. Upon
246 memory allocation error, call obstack_alloc_failed_handler. Upon
247 other error, return -1. */
248 extern int obstack_printf (struct obstack *obs, const char *format, ...)
249 __attribute__ ((__format__ (__printf__, 2, 3)));
250 extern int obstack_vprintf (struct obstack *obs, const char *format,
251 va_list args)
252 __attribute__ ((__format__ (__printf__, 2, 0)));
253 # endif
254 #endif
255
256 #if @GNULIB_FOPEN@
257 # if @REPLACE_FOPEN@
258 # undef fopen
259 # define fopen rpl_fopen
260 extern FILE * fopen (const char *filename, const char *mode);
261 # endif
262 #elif defined GNULIB_POSIXCHECK
263 # undef fopen
264 # define fopen(f,m) \
265 (GL_LINK_WARNING ("fopen on Win32 platforms is not POSIX compatible - " \
266 "use gnulib module fopen for portability"), \
267 fopen (f, m))
268 #endif
269
270 #if @GNULIB_FREOPEN@
271 # if @REPLACE_FREOPEN@
272 # undef freopen
273 # define freopen rpl_freopen
274 extern FILE * freopen (const char *filename, const char *mode, FILE *stream);
275 # endif
276 #elif defined GNULIB_POSIXCHECK
277 # undef freopen
278 # define freopen(f,m,s) \
279 (GL_LINK_WARNING ("freopen on Win32 platforms is not POSIX compatible - " \
280 "use gnulib module freopen for portability"), \
281 freopen (f, m, s))
282 #endif
283
284 #if @GNULIB_FSEEKO@
285 # if @REPLACE_FSEEKO@
286 /* Provide fseek, fseeko functions that are aware of a preceding
287 fflush(), and which detect pipes. */
288 # define fseeko rpl_fseeko
289 extern int fseeko (FILE *fp, off_t offset, int whence);
290 # define fseek(fp, offset, whence) fseeko (fp, (off_t)(offset), whence)
291 # endif
292 #elif defined GNULIB_POSIXCHECK
293 # undef fseeko
294 # define fseeko(f,o,w) \
295 (GL_LINK_WARNING ("fseeko is unportable - " \
296 "use gnulib module fseeko for portability"), \
297 fseeko (f, o, w))
298 #endif
299
300 #if @GNULIB_FSEEK@ && @REPLACE_FSEEK@
301 extern int rpl_fseek (FILE *fp, long offset, int whence);
302 # undef fseek
303 # if defined GNULIB_POSIXCHECK
304 # define fseek(f,o,w) \
305 (GL_LINK_WARNING ("fseek cannot handle files larger than 4 GB " \
306 "on 32-bit platforms - " \
307 "use fseeko function for handling of large files"), \
308 rpl_fseek (f, o, w))
309 # else
310 # define fseek rpl_fseek
311 # endif
312 #elif defined GNULIB_POSIXCHECK
313 # ifndef fseek
314 # define fseek(f,o,w) \
315 (GL_LINK_WARNING ("fseek cannot handle files larger than 4 GB " \
316 "on 32-bit platforms - " \
317 "use fseeko function for handling of large files"), \
318 fseek (f, o, w))
319 # endif
320 #endif
321
322 #if @GNULIB_FTELLO@
323 # if @REPLACE_FTELLO@
324 # define ftello rpl_ftello
325 extern off_t ftello (FILE *fp);
326 # define ftell(fp) ftello (fp)
327 # endif
328 #elif defined GNULIB_POSIXCHECK
329 # undef ftello
330 # define ftello(f) \
331 (GL_LINK_WARNING ("ftello is unportable - " \
332 "use gnulib module ftello for portability"), \
333 ftello (f))
334 #endif
335
336 #if @GNULIB_FTELL@ && @REPLACE_FTELL@
337 extern long rpl_ftell (FILE *fp);
338 # undef ftell
339 # if GNULIB_POSIXCHECK
340 # define ftell(f) \
341 (GL_LINK_WARNING ("ftell cannot handle files larger than 4 GB " \
342 "on 32-bit platforms - " \
343 "use ftello function for handling of large files"), \
344 rpl_ftell (f))
345 # else
346 # define ftell rpl_ftell
347 # endif
348 #elif defined GNULIB_POSIXCHECK
349 # ifndef ftell
350 # define ftell(f) \
351 (GL_LINK_WARNING ("ftell cannot handle files larger than 4 GB " \
352 "on 32-bit platforms - " \
353 "use ftello function for handling of large files"), \
354 ftell (f))
355 # endif
356 #endif
357
358 #if @GNULIB_FFLUSH@
359 # if @REPLACE_FFLUSH@
360 # define fflush rpl_fflush
361 /* Flush all pending data on STREAM according to POSIX rules. Both
362 output and seekable input streams are supported.
363 Note! LOSS OF DATA can occur if fflush is applied on an input stream
364 that is _not_seekable_ or on an update stream that is _not_seekable_
365 and in which the most recent operation was input. Seekability can
366 be tested with lseek(fileno(fp),0,SEEK_CUR). */
367 extern int fflush (FILE *gl_stream);
368 # endif
369 #elif defined GNULIB_POSIXCHECK
370 # undef fflush
371 # define fflush(f) \
372 (GL_LINK_WARNING ("fflush is not always POSIX compliant - " \
373 "use gnulib module fflush for portable " \
374 "POSIX compliance"), \
375 fflush (f))
376 #endif
377
378 #if @GNULIB_FCLOSE@
379 # if @REPLACE_FCLOSE@
380 # define fclose rpl_fclose
381 /* Close STREAM and its underlying file descriptor. */
382 extern int fclose (FILE *stream);
383 # endif
384 #elif defined GNULIB_POSIXCHECK
385 # undef fclose
386 # define fclose(f) \
387 (GL_LINK_WARNING ("fclose is not always POSIX compliant - " \
388 "use gnulib module fclose for portable " \
389 "POSIX compliance"), \
390 fclose (f))
391 #endif
392
393 #if @GNULIB_FPUTC@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
394 # undef fputc
395 # define fputc rpl_fputc
396 extern int fputc (int c, FILE *stream);
397 #endif
398
399 #if @GNULIB_PUTC@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
400 # undef putc
401 # define putc rpl_fputc
402 extern int putc (int c, FILE *stream);
403 #endif
404
405 #if @GNULIB_PUTCHAR@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
406 # undef putchar
407 # define putchar rpl_putchar
408 extern int putchar (int c);
409 #endif
410
411 #if @GNULIB_FPUTS@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
412 # undef fputs
413 # define fputs rpl_fputs
414 extern int fputs (const char *string, FILE *stream);
415 #endif
416
417 #if @GNULIB_PUTS@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
418 # undef puts
419 # define puts rpl_puts
420 extern int puts (const char *string);
421 #endif
422
423 #if @GNULIB_FWRITE@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
424 # undef fwrite
425 # define fwrite rpl_fwrite
426 extern size_t fwrite (const void *ptr, size_t s, size_t n, FILE *stream);
427 #endif
428
429 #if @GNULIB_GETDELIM@
430 # if !@HAVE_DECL_GETDELIM@
431 /* Read input, up to (and including) the next occurrence of DELIMITER, from
432 STREAM, store it in *LINEPTR (and NUL-terminate it).
433 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
434 bytes of space. It is realloc'd as necessary.
435 Return the number of bytes read and stored at *LINEPTR (not including the
436 NUL terminator), or -1 on error or EOF. */
437 extern ssize_t getdelim (char **lineptr, size_t *linesize, int delimiter,
438 FILE *stream);
439 # endif
440 #elif defined GNULIB_POSIXCHECK
441 # undef getdelim
442 # define getdelim(l, s, d, f) \
443 (GL_LINK_WARNING ("getdelim is unportable - " \
444 "use gnulib module getdelim for portability"), \
445 getdelim (l, s, d, f))
446 #endif
447
448 #if @GNULIB_GETLINE@
449 # if @REPLACE_GETLINE@
450 # undef getline
451 # define getline rpl_getline
452 # endif
453 # if !@HAVE_DECL_GETLINE@ || @REPLACE_GETLINE@
454 /* Read a line, up to (and including) the next newline, from STREAM, store it
455 in *LINEPTR (and NUL-terminate it).
456 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
457 bytes of space. It is realloc'd as necessary.
458 Return the number of bytes read and stored at *LINEPTR (not including the
459 NUL terminator), or -1 on error or EOF. */
460 extern ssize_t getline (char **lineptr, size_t *linesize, FILE *stream);
461 # endif
462 #elif defined GNULIB_POSIXCHECK
463 # undef getline
464 # define getline(l, s, f) \
465 (GL_LINK_WARNING ("getline is unportable - " \
466 "use gnulib module getline for portability"), \
467 getline (l, s, f))
468 #endif
469
470 #if @GNULIB_PERROR@
471 # if @REPLACE_PERROR@
472 # define perror rpl_perror
473 /* Print a message to standard error, describing the value of ERRNO,
474 (if STRING is not NULL and not empty) prefixed with STRING and ": ",
475 and terminated with a newline. */
476 extern void perror (const char *string);
477 # endif
478 #elif defined GNULIB_POSIXCHECK
479 # undef perror
480 # define perror(s) \
481 (GL_LINK_WARNING ("perror is not always POSIX compliant - " \
482 "use gnulib module perror for portability"), \
483 perror (s))
484 #endif
485
486 #ifdef __cplusplus
487 }
488 #endif
489
490 #endif /* _GL_STDIO_H */
491 #endif /* _GL_STDIO_H */
492 #endif