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2f6d1f1b | 1 | /* Define ISO C stdio on top of C++ iostreams. |
f7a9f785 | 2 | Copyright (C) 1991-2016 Free Software Foundation, Inc. |
41bdb6e2 | 3 | This file is part of the GNU C Library. |
96aa2d94 | 4 | |
2f6d1f1b | 5 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
96aa2d94 | 9 | |
2f6d1f1b UD |
10 | The GNU C Library 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 GNU | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
96aa2d94 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
96aa2d94 RM |
18 | |
19 | /* | |
d1646309 | 20 | * ISO C99 Standard: 7.19 Input/output <stdio.h> |
96aa2d94 RM |
21 | */ |
22 | ||
23 | #ifndef _STDIO_H | |
2f6d1f1b | 24 | |
d1646309 | 25 | #if !defined __need_FILE && !defined __need___FILE |
dfd2257a UD |
26 | # define _STDIO_H 1 |
27 | # include <features.h> | |
2f6d1f1b UD |
28 | |
29 | __BEGIN_DECLS | |
30 | ||
dfd2257a UD |
31 | # define __need_size_t |
32 | # define __need_NULL | |
33 | # include <stddef.h> | |
2f6d1f1b | 34 | |
dfd2257a | 35 | # include <bits/types.h> |
d1646309 UD |
36 | # define __need_FILE |
37 | # define __need___FILE | |
2f6d1f1b | 38 | #endif /* Don't need FILE. */ |
2f6d1f1b UD |
39 | |
40 | ||
d1646309 | 41 | #if !defined __FILE_defined && defined __need_FILE |
2f6d1f1b | 42 | |
2e0e802a UD |
43 | /* Define outside of namespace so the C++ is happy. */ |
44 | struct _IO_FILE; | |
45 | ||
7a5affeb | 46 | __BEGIN_NAMESPACE_STD |
d1646309 | 47 | /* The opaque type of streams. This is the definition used elsewhere. */ |
2f6d1f1b | 48 | typedef struct _IO_FILE FILE; |
7a5affeb | 49 | __END_NAMESPACE_STD |
acd7f096 JM |
50 | #if defined __USE_LARGEFILE64 || defined __USE_POSIX \ |
51 | || defined __USE_ISOC99 || defined __USE_XOPEN \ | |
7a5affeb UD |
52 | || defined __USE_POSIX2 |
53 | __USING_NAMESPACE_STD(FILE) | |
54 | #endif | |
2f6d1f1b | 55 | |
dfd2257a | 56 | # define __FILE_defined 1 |
2f6d1f1b | 57 | #endif /* FILE not defined. */ |
d1646309 UD |
58 | #undef __need_FILE |
59 | ||
60 | ||
61 | #if !defined ____FILE_defined && defined __need___FILE | |
62 | ||
63 | /* The opaque type of streams. This is the definition used elsewhere. */ | |
64 | typedef struct _IO_FILE __FILE; | |
65 | ||
66 | # define ____FILE_defined 1 | |
67 | #endif /* __FILE not defined. */ | |
68 | #undef __need___FILE | |
2f6d1f1b UD |
69 | |
70 | ||
71 | #ifdef _STDIO_H | |
96aa2d94 RM |
72 | #define _STDIO_USES_IOSTREAM |
73 | ||
74 | #include <libio.h> | |
75 | ||
cd2f000c | 76 | #if defined __USE_XOPEN || defined __USE_XOPEN2K8 |
3bf3d361 UD |
77 | # ifdef __GNUC__ |
78 | # ifndef _VA_LIST_DEFINED | |
79 | typedef _G_va_list va_list; | |
80 | # define _VA_LIST_DEFINED | |
81 | # endif | |
82 | # else | |
83 | # include <stdarg.h> | |
84 | # endif | |
85 | #endif | |
86 | ||
10b8108a | 87 | #if defined __USE_UNIX98 || defined __USE_XOPEN2K |
cd2f000c UD |
88 | # ifndef __off_t_defined |
89 | # ifndef __USE_FILE_OFFSET64 | |
90 | typedef __off_t off_t; | |
91 | # else | |
92 | typedef __off64_t off_t; | |
93 | # endif | |
94 | # define __off_t_defined | |
95 | # endif | |
96 | # if defined __USE_LARGEFILE64 && !defined __off64_t_defined | |
97 | typedef __off64_t off64_t; | |
98 | # define __off64_t_defined | |
99 | # endif | |
bf074726 | 100 | #endif |
cd2f000c | 101 | |
bf074726 | 102 | #ifdef __USE_XOPEN2K8 |
cd2f000c UD |
103 | # ifndef __ssize_t_defined |
104 | typedef __ssize_t ssize_t; | |
105 | # define __ssize_t_defined | |
106 | # endif | |
107 | #endif | |
108 | ||
2f6d1f1b | 109 | /* The type of the second argument to `fgetpos' and `fsetpos'. */ |
7a5affeb | 110 | __BEGIN_NAMESPACE_STD |
dfd2257a | 111 | #ifndef __USE_FILE_OFFSET64 |
2f6d1f1b | 112 | typedef _G_fpos_t fpos_t; |
dfd2257a UD |
113 | #else |
114 | typedef _G_fpos64_t fpos_t; | |
115 | #endif | |
7a5affeb | 116 | __END_NAMESPACE_STD |
dfd2257a UD |
117 | #ifdef __USE_LARGEFILE64 |
118 | typedef _G_fpos64_t fpos64_t; | |
119 | #endif | |
2f6d1f1b | 120 | |
2f6d1f1b | 121 | /* The possibilities for the third argument to `setvbuf'. */ |
798be72d | 122 | #define _IOFBF 0 /* Fully buffered. */ |
2f6d1f1b UD |
123 | #define _IOLBF 1 /* Line buffered. */ |
124 | #define _IONBF 2 /* No buffering. */ | |
125 | ||
126 | ||
127 | /* Default buffer size. */ | |
96aa2d94 | 128 | #ifndef BUFSIZ |
dfd2257a | 129 | # define BUFSIZ _IO_BUFSIZ |
96aa2d94 RM |
130 | #endif |
131 | ||
2f6d1f1b UD |
132 | |
133 | /* End of file character. | |
134 | Some things throughout the library rely on this being -1. */ | |
135 | #ifndef EOF | |
dfd2257a | 136 | # define EOF (-1) |
96aa2d94 RM |
137 | #endif |
138 | ||
96aa2d94 | 139 | |
2f6d1f1b UD |
140 | /* The possibilities for the third argument to `fseek'. |
141 | These values should not be changed. */ | |
142 | #define SEEK_SET 0 /* Seek from beginning of file. */ | |
143 | #define SEEK_CUR 1 /* Seek from current position. */ | |
144 | #define SEEK_END 2 /* Seek from end of file. */ | |
798be72d UD |
145 | #ifdef __USE_GNU |
146 | # define SEEK_DATA 3 /* Seek to next data. */ | |
147 | # define SEEK_HOLE 4 /* Seek to next hole. */ | |
148 | #endif | |
2f6d1f1b | 149 | |
96aa2d94 | 150 | |
498afc54 | 151 | #if defined __USE_MISC || defined __USE_XOPEN |
f65fd747 | 152 | /* Default path prefix for `tempnam' and `tmpnam'. */ |
dfd2257a | 153 | # define P_tmpdir "/tmp" |
f65fd747 | 154 | #endif |
96aa2d94 | 155 | |
96aa2d94 | 156 | |
2f6d1f1b UD |
157 | /* Get the values: |
158 | L_tmpnam How long an array of chars must be to be passed to `tmpnam'. | |
159 | TMP_MAX The minimum number of unique filenames generated by tmpnam | |
798be72d | 160 | (and tempnam when it uses tmpnam's name space), |
2f6d1f1b UD |
161 | or tempnam (the two are separate). |
162 | L_ctermid How long an array to pass to `ctermid'. | |
163 | L_cuserid How long an array to pass to `cuserid'. | |
164 | FOPEN_MAX Minimum number of files that can be open at once. | |
165 | FILENAME_MAX Maximum length of a filename. */ | |
5107cf1d | 166 | #include <bits/stdio_lim.h> |
2f6d1f1b UD |
167 | |
168 | ||
169 | /* Standard streams. */ | |
7a5affeb UD |
170 | extern struct _IO_FILE *stdin; /* Standard input stream. */ |
171 | extern struct _IO_FILE *stdout; /* Standard output stream. */ | |
172 | extern struct _IO_FILE *stderr; /* Standard error output stream. */ | |
63ae7b63 | 173 | /* C89/C99 say they're macros. Make them happy. */ |
7df789e0 UD |
174 | #define stdin stdin |
175 | #define stdout stdout | |
176 | #define stderr stderr | |
96aa2d94 | 177 | |
7a5affeb | 178 | __BEGIN_NAMESPACE_STD |
2f6d1f1b | 179 | /* Remove file FILENAME. */ |
a784e502 | 180 | extern int remove (const char *__filename) __THROW; |
2f6d1f1b | 181 | /* Rename file OLD to NEW. */ |
a784e502 | 182 | extern int rename (const char *__old, const char *__new) __THROW; |
7a5affeb | 183 | __END_NAMESPACE_STD |
2f6d1f1b | 184 | |
0b8f25bb | 185 | #ifdef __USE_ATFILE |
26cec518 | 186 | /* Rename file OLD relative to OLDFD to NEW relative to NEWFD. */ |
a784e502 UD |
187 | extern int renameat (int __oldfd, const char *__old, int __newfd, |
188 | const char *__new) __THROW; | |
26cec518 | 189 | #endif |
2f6d1f1b | 190 | |
7a5affeb | 191 | __BEGIN_NAMESPACE_STD |
2c008571 UD |
192 | /* Create a temporary file and open it read/write. |
193 | ||
4c1423ed | 194 | This function is a possible cancellation point and therefore not |
2c008571 | 195 | marked with __THROW. */ |
dfd2257a | 196 | #ifndef __USE_FILE_OFFSET64 |
11bf311e | 197 | extern FILE *tmpfile (void) __wur; |
dfd2257a | 198 | #else |
01cad722 | 199 | # ifdef __REDIRECT |
11bf311e | 200 | extern FILE *__REDIRECT (tmpfile, (void), tmpfile64) __wur; |
01cad722 UD |
201 | # else |
202 | # define tmpfile tmpfile64 | |
203 | # endif | |
dfd2257a | 204 | #endif |
7a5affeb | 205 | |
2c008571 | 206 | #ifdef __USE_LARGEFILE64 |
11bf311e | 207 | extern FILE *tmpfile64 (void) __wur; |
2c008571 UD |
208 | #endif |
209 | ||
7a5affeb | 210 | /* Generate a temporary filename. */ |
11bf311e | 211 | extern char *tmpnam (char *__s) __THROW __wur; |
7a5affeb UD |
212 | __END_NAMESPACE_STD |
213 | ||
2f6d1f1b UD |
214 | #ifdef __USE_MISC |
215 | /* This is the reentrant variant of `tmpnam'. The only difference is | |
216 | that it does not allow S to be NULL. */ | |
11bf311e | 217 | extern char *tmpnam_r (char *__s) __THROW __wur; |
d68171ed | 218 | #endif |
2f6d1f1b UD |
219 | |
220 | ||
498afc54 | 221 | #if defined __USE_MISC || defined __USE_XOPEN |
2f6d1f1b UD |
222 | /* Generate a unique temporary filename using up to five characters of PFX |
223 | if it is not NULL. The directory to put this file in is searched for | |
224 | as follows: First the environment variable "TMPDIR" is checked. | |
225 | If it contains the name of a writable directory, that directory is used. | |
226 | If not and if DIR is not NULL, that value is checked. If that fails, | |
227 | P_tmpdir is tried and finally "/tmp". The storage for the filename | |
228 | is allocated by `malloc'. */ | |
a784e502 | 229 | extern char *tempnam (const char *__dir, const char *__pfx) |
11bf311e | 230 | __THROW __attribute_malloc__ __wur; |
2cc7dc4d | 231 | #endif |
96aa2d94 | 232 | |
2f6d1f1b | 233 | |
7a5affeb | 234 | __BEGIN_NAMESPACE_STD |
2c008571 UD |
235 | /* Close STREAM. |
236 | ||
237 | This function is a possible cancellation point and therefore not | |
238 | marked with __THROW. */ | |
239 | extern int fclose (FILE *__stream); | |
240 | /* Flush STREAM, or all streams if STREAM is NULL. | |
241 | ||
242 | This function is a possible cancellation point and therefore not | |
243 | marked with __THROW. */ | |
244 | extern int fflush (FILE *__stream); | |
7a5affeb | 245 | __END_NAMESPACE_STD |
2f6d1f1b UD |
246 | |
247 | #ifdef __USE_MISC | |
2c008571 UD |
248 | /* Faster versions when locking is not required. |
249 | ||
250 | This function is not part of POSIX and therefore no official | |
251 | cancellation point. But due to similarity with an POSIX interface | |
252 | or due to the implementation it is a cancellation point and | |
253 | therefore not marked with __THROW. */ | |
254 | extern int fflush_unlocked (FILE *__stream); | |
96aa2d94 RM |
255 | #endif |
256 | ||
2c6fe0bd | 257 | #ifdef __USE_GNU |
2c008571 UD |
258 | /* Close all streams. |
259 | ||
260 | This function is not part of POSIX and therefore no official | |
261 | cancellation point. But due to similarity with an POSIX interface | |
262 | or due to the implementation it is a cancellation point and | |
263 | therefore not marked with __THROW. */ | |
264 | extern int fcloseall (void); | |
2c6fe0bd UD |
265 | #endif |
266 | ||
76060ec0 | 267 | |
7a5affeb | 268 | __BEGIN_NAMESPACE_STD |
dfd2257a | 269 | #ifndef __USE_FILE_OFFSET64 |
2c008571 UD |
270 | /* Open a file and create a new stream for it. |
271 | ||
272 | This function is a possible cancellation point and therefore not | |
273 | marked with __THROW. */ | |
a784e502 UD |
274 | extern FILE *fopen (const char *__restrict __filename, |
275 | const char *__restrict __modes) __wur; | |
2c008571 UD |
276 | /* Open a file, replacing an existing stream with it. |
277 | ||
278 | This function is a possible cancellation point and therefore not | |
279 | marked with __THROW. */ | |
a784e502 UD |
280 | extern FILE *freopen (const char *__restrict __filename, |
281 | const char *__restrict __modes, | |
11bf311e | 282 | FILE *__restrict __stream) __wur; |
dfd2257a | 283 | #else |
01cad722 | 284 | # ifdef __REDIRECT |
a784e502 UD |
285 | extern FILE *__REDIRECT (fopen, (const char *__restrict __filename, |
286 | const char *__restrict __modes), fopen64) | |
11bf311e | 287 | __wur; |
a784e502 UD |
288 | extern FILE *__REDIRECT (freopen, (const char *__restrict __filename, |
289 | const char *__restrict __modes, | |
11bf311e UD |
290 | FILE *__restrict __stream), freopen64) |
291 | __wur; | |
01cad722 UD |
292 | # else |
293 | # define fopen fopen64 | |
294 | # define freopen freopen64 | |
295 | # endif | |
dfd2257a | 296 | #endif |
7a5affeb | 297 | __END_NAMESPACE_STD |
dfd2257a | 298 | #ifdef __USE_LARGEFILE64 |
a784e502 UD |
299 | extern FILE *fopen64 (const char *__restrict __filename, |
300 | const char *__restrict __modes) __wur; | |
301 | extern FILE *freopen64 (const char *__restrict __filename, | |
302 | const char *__restrict __modes, | |
11bf311e | 303 | FILE *__restrict __stream) __wur; |
dfd2257a | 304 | #endif |
76060ec0 | 305 | |
2f6d1f1b UD |
306 | #ifdef __USE_POSIX |
307 | /* Create a new stream that refers to an existing system file descriptor. */ | |
a784e502 | 308 | extern FILE *fdopen (int __fd, const char *__modes) __THROW __wur; |
96aa2d94 RM |
309 | #endif |
310 | ||
2f6d1f1b UD |
311 | #ifdef __USE_GNU |
312 | /* Create a new stream that refers to the given magic cookie, | |
313 | and uses the given functions for input and output. */ | |
c1422e5b | 314 | extern FILE *fopencookie (void *__restrict __magic_cookie, |
a784e502 | 315 | const char *__restrict __modes, |
11bf311e | 316 | _IO_cookie_io_functions_t __io_funcs) __THROW __wur; |
f503060b | 317 | #endif |
7a12c6bb | 318 | |
f503060b | 319 | #ifdef __USE_XOPEN2K8 |
46e4bd3b | 320 | /* Create a new stream that refers to a memory buffer. */ |
a784e502 | 321 | extern FILE *fmemopen (void *__s, size_t __len, const char *__modes) |
11bf311e | 322 | __THROW __wur; |
46e4bd3b | 323 | |
96aa2d94 RM |
324 | /* Open a stream that writes into a malloc'd buffer that is expanded as |
325 | necessary. *BUFLOC and *SIZELOC are updated with the buffer's location | |
326 | and the number of characters written on fflush or fclose. */ | |
11bf311e | 327 | extern FILE *open_memstream (char **__bufloc, size_t *__sizeloc) __THROW __wur; |
96aa2d94 RM |
328 | #endif |
329 | ||
96aa2d94 | 330 | |
7a5affeb | 331 | __BEGIN_NAMESPACE_STD |
2f6d1f1b UD |
332 | /* If BUF is NULL, make STREAM unbuffered. |
333 | Else make it use buffer BUF, of size BUFSIZ. */ | |
c1422e5b | 334 | extern void setbuf (FILE *__restrict __stream, char *__restrict __buf) __THROW; |
2f6d1f1b UD |
335 | /* Make STREAM use buffering mode MODE. |
336 | If BUF is not NULL, use N bytes of it for buffering; | |
337 | else allocate an internal buffer N bytes long. */ | |
c1422e5b UD |
338 | extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf, |
339 | int __modes, size_t __n) __THROW; | |
7a5affeb | 340 | __END_NAMESPACE_STD |
2f6d1f1b | 341 | |
498afc54 | 342 | #ifdef __USE_MISC |
2f6d1f1b UD |
343 | /* If BUF is NULL, make STREAM unbuffered. |
344 | Else make it use SIZE bytes of BUF for buffering. */ | |
c1422e5b UD |
345 | extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf, |
346 | size_t __size) __THROW; | |
2f6d1f1b UD |
347 | |
348 | /* Make STREAM line-buffered. */ | |
c1422e5b | 349 | extern void setlinebuf (FILE *__stream) __THROW; |
96aa2d94 RM |
350 | #endif |
351 | ||
2f6d1f1b | 352 | |
7a5affeb | 353 | __BEGIN_NAMESPACE_STD |
2c008571 UD |
354 | /* Write formatted output to STREAM. |
355 | ||
356 | This function is a possible cancellation point and therefore not | |
357 | marked with __THROW. */ | |
c1422e5b | 358 | extern int fprintf (FILE *__restrict __stream, |
a784e502 | 359 | const char *__restrict __format, ...); |
2c008571 UD |
360 | /* Write formatted output to stdout. |
361 | ||
362 | This function is a possible cancellation point and therefore not | |
363 | marked with __THROW. */ | |
a784e502 | 364 | extern int printf (const char *__restrict __format, ...); |
2f6d1f1b | 365 | /* Write formatted output to S. */ |
c1422e5b | 366 | extern int sprintf (char *__restrict __s, |
a784e502 | 367 | const char *__restrict __format, ...) __THROWNL; |
2f6d1f1b | 368 | |
2c008571 UD |
369 | /* Write formatted output to S from argument list ARG. |
370 | ||
371 | This function is a possible cancellation point and therefore not | |
372 | marked with __THROW. */ | |
a784e502 | 373 | extern int vfprintf (FILE *__restrict __s, const char *__restrict __format, |
2c008571 UD |
374 | _G_va_list __arg); |
375 | /* Write formatted output to stdout from argument list ARG. | |
376 | ||
377 | This function is a possible cancellation point and therefore not | |
378 | marked with __THROW. */ | |
a784e502 | 379 | extern int vprintf (const char *__restrict __format, _G_va_list __arg); |
2f6d1f1b | 380 | /* Write formatted output to S from argument list ARG. */ |
a784e502 | 381 | extern int vsprintf (char *__restrict __s, const char *__restrict __format, |
9beb2334 | 382 | _G_va_list __arg) __THROWNL; |
7a5affeb | 383 | __END_NAMESPACE_STD |
2f6d1f1b | 384 | |
acd7f096 | 385 | #if defined __USE_ISOC99 || defined __USE_UNIX98 |
7a5affeb | 386 | __BEGIN_NAMESPACE_C99 |
2f6d1f1b | 387 | /* Maximum chars of output to write in MAXLEN. */ |
c1422e5b | 388 | extern int snprintf (char *__restrict __s, size_t __maxlen, |
a784e502 | 389 | const char *__restrict __format, ...) |
9beb2334 | 390 | __THROWNL __attribute__ ((__format__ (__printf__, 3, 4))); |
f41c8091 | 391 | |
c1422e5b | 392 | extern int vsnprintf (char *__restrict __s, size_t __maxlen, |
a784e502 | 393 | const char *__restrict __format, _G_va_list __arg) |
9beb2334 | 394 | __THROWNL __attribute__ ((__format__ (__printf__, 3, 0))); |
7a5affeb | 395 | __END_NAMESPACE_C99 |
907a1bac | 396 | #endif |
2f6d1f1b | 397 | |
907a1bac | 398 | #ifdef __USE_GNU |
2f6d1f1b UD |
399 | /* Write formatted output to a string dynamically allocated with `malloc'. |
400 | Store the address of the string in *PTR. */ | |
a784e502 | 401 | extern int vasprintf (char **__restrict __ptr, const char *__restrict __f, |
c1422e5b | 402 | _G_va_list __arg) |
9beb2334 | 403 | __THROWNL __attribute__ ((__format__ (__printf__, 2, 0))) __wur; |
c1422e5b | 404 | extern int __asprintf (char **__restrict __ptr, |
a784e502 | 405 | const char *__restrict __fmt, ...) |
9beb2334 | 406 | __THROWNL __attribute__ ((__format__ (__printf__, 2, 3))) __wur; |
c1422e5b | 407 | extern int asprintf (char **__restrict __ptr, |
a784e502 | 408 | const char *__restrict __fmt, ...) |
9beb2334 | 409 | __THROWNL __attribute__ ((__format__ (__printf__, 2, 3))) __wur; |
f503060b | 410 | #endif |
2f6d1f1b | 411 | |
f503060b | 412 | #ifdef __USE_XOPEN2K8 |
36c8acb4 | 413 | /* Write formatted output to a file descriptor. */ |
a784e502 | 414 | extern int vdprintf (int __fd, const char *__restrict __fmt, |
c1422e5b | 415 | _G_va_list __arg) |
2c008571 | 416 | __attribute__ ((__format__ (__printf__, 2, 0))); |
a784e502 | 417 | extern int dprintf (int __fd, const char *__restrict __fmt, ...) |
2c008571 | 418 | __attribute__ ((__format__ (__printf__, 2, 3))); |
19361cb7 | 419 | #endif |
7c713e28 | 420 | |
2f6d1f1b | 421 | |
7a5affeb | 422 | __BEGIN_NAMESPACE_STD |
2c008571 UD |
423 | /* Read formatted input from STREAM. |
424 | ||
425 | This function is a possible cancellation point and therefore not | |
426 | marked with __THROW. */ | |
c1422e5b | 427 | extern int fscanf (FILE *__restrict __stream, |
a784e502 | 428 | const char *__restrict __format, ...) __wur; |
2c008571 UD |
429 | /* Read formatted input from stdin. |
430 | ||
431 | This function is a possible cancellation point and therefore not | |
432 | marked with __THROW. */ | |
a784e502 | 433 | extern int scanf (const char *__restrict __format, ...) __wur; |
2f6d1f1b | 434 | /* Read formatted input from S. */ |
a784e502 UD |
435 | extern int sscanf (const char *__restrict __s, |
436 | const char *__restrict __format, ...) __THROW; | |
874aa523 UD |
437 | |
438 | #if defined __USE_ISOC99 && !defined __USE_GNU \ | |
439 | && (!defined __LDBL_COMPAT || !defined __REDIRECT) \ | |
440 | && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K) | |
441 | # ifdef __REDIRECT | |
442 | /* For strict ISO C99 or POSIX compliance disallow %as, %aS and %a[ | |
443 | GNU extension which conflicts with valid %a followed by letter | |
444 | s, S or [. */ | |
445 | extern int __REDIRECT (fscanf, (FILE *__restrict __stream, | |
a784e502 | 446 | const char *__restrict __format, ...), |
874aa523 | 447 | __isoc99_fscanf) __wur; |
a784e502 | 448 | extern int __REDIRECT (scanf, (const char *__restrict __format, ...), |
874aa523 | 449 | __isoc99_scanf) __wur; |
a784e502 UD |
450 | extern int __REDIRECT_NTH (sscanf, (const char *__restrict __s, |
451 | const char *__restrict __format, ...), | |
f32f2869 | 452 | __isoc99_sscanf); |
874aa523 UD |
453 | # else |
454 | extern int __isoc99_fscanf (FILE *__restrict __stream, | |
a784e502 UD |
455 | const char *__restrict __format, ...) __wur; |
456 | extern int __isoc99_scanf (const char *__restrict __format, ...) __wur; | |
457 | extern int __isoc99_sscanf (const char *__restrict __s, | |
458 | const char *__restrict __format, ...) __THROW; | |
874aa523 UD |
459 | # define fscanf __isoc99_fscanf |
460 | # define scanf __isoc99_scanf | |
461 | # define sscanf __isoc99_sscanf | |
462 | # endif | |
463 | #endif | |
464 | ||
7a5affeb | 465 | __END_NAMESPACE_STD |
2f6d1f1b | 466 | |
ec751a23 | 467 | #ifdef __USE_ISOC99 |
7a5affeb | 468 | __BEGIN_NAMESPACE_C99 |
2c008571 UD |
469 | /* Read formatted input from S into argument list ARG. |
470 | ||
471 | This function is a possible cancellation point and therefore not | |
472 | marked with __THROW. */ | |
a784e502 | 473 | extern int vfscanf (FILE *__restrict __s, const char *__restrict __format, |
c1422e5b | 474 | _G_va_list __arg) |
0476597b | 475 | __attribute__ ((__format__ (__scanf__, 2, 0))) __wur; |
2c008571 UD |
476 | |
477 | /* Read formatted input from stdin into argument list ARG. | |
2f6d1f1b | 478 | |
2c008571 UD |
479 | This function is a possible cancellation point and therefore not |
480 | marked with __THROW. */ | |
a784e502 | 481 | extern int vscanf (const char *__restrict __format, _G_va_list __arg) |
0476597b | 482 | __attribute__ ((__format__ (__scanf__, 1, 0))) __wur; |
2f6d1f1b UD |
483 | |
484 | /* Read formatted input from S into argument list ARG. */ | |
a784e502 UD |
485 | extern int vsscanf (const char *__restrict __s, |
486 | const char *__restrict __format, _G_va_list __arg) | |
7d506e8e | 487 | __THROW __attribute__ ((__format__ (__scanf__, 2, 0))); |
874aa523 UD |
488 | |
489 | # if !defined __USE_GNU \ | |
490 | && (!defined __LDBL_COMPAT || !defined __REDIRECT) \ | |
491 | && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K) | |
492 | # ifdef __REDIRECT | |
493 | /* For strict ISO C99 or POSIX compliance disallow %as, %aS and %a[ | |
494 | GNU extension which conflicts with valid %a followed by letter | |
495 | s, S or [. */ | |
496 | extern int __REDIRECT (vfscanf, | |
497 | (FILE *__restrict __s, | |
a784e502 | 498 | const char *__restrict __format, _G_va_list __arg), |
874aa523 UD |
499 | __isoc99_vfscanf) |
500 | __attribute__ ((__format__ (__scanf__, 2, 0))) __wur; | |
a784e502 | 501 | extern int __REDIRECT (vscanf, (const char *__restrict __format, |
ad8a5511 | 502 | _G_va_list __arg), __isoc99_vscanf) |
874aa523 | 503 | __attribute__ ((__format__ (__scanf__, 1, 0))) __wur; |
f32f2869 | 504 | extern int __REDIRECT_NTH (vsscanf, |
a784e502 UD |
505 | (const char *__restrict __s, |
506 | const char *__restrict __format, | |
f32f2869 JJ |
507 | _G_va_list __arg), __isoc99_vsscanf) |
508 | __attribute__ ((__format__ (__scanf__, 2, 0))); | |
874aa523 UD |
509 | # else |
510 | extern int __isoc99_vfscanf (FILE *__restrict __s, | |
a784e502 | 511 | const char *__restrict __format, |
874aa523 | 512 | _G_va_list __arg) __wur; |
a784e502 | 513 | extern int __isoc99_vscanf (const char *__restrict __format, |
874aa523 | 514 | _G_va_list __arg) __wur; |
a784e502 UD |
515 | extern int __isoc99_vsscanf (const char *__restrict __s, |
516 | const char *__restrict __format, | |
874aa523 UD |
517 | _G_va_list __arg) __THROW; |
518 | # define vfscanf __isoc99_vfscanf | |
4e3be9d6 | 519 | # define vscanf __isoc99_vscanf |
874aa523 UD |
520 | # define vsscanf __isoc99_vsscanf |
521 | # endif | |
522 | # endif | |
523 | ||
7a5affeb | 524 | __END_NAMESPACE_C99 |
2b33e5b0 | 525 | #endif /* Use ISO C9x. */ |
2f6d1f1b UD |
526 | |
527 | ||
7a5affeb | 528 | __BEGIN_NAMESPACE_STD |
2c008571 | 529 | /* Read a character from STREAM. |
2f6d1f1b | 530 | |
2c008571 UD |
531 | These functions are possible cancellation points and therefore not |
532 | marked with __THROW. */ | |
533 | extern int fgetc (FILE *__stream); | |
534 | extern int getc (FILE *__stream); | |
535 | ||
536 | /* Read a character from stdin. | |
537 | ||
538 | This function is a possible cancellation point and therefore not | |
539 | marked with __THROW. */ | |
540 | extern int getchar (void); | |
7a5affeb | 541 | __END_NAMESPACE_STD |
2f6d1f1b UD |
542 | |
543 | /* The C standard explicitly says this is a macro, so we always do the | |
544 | optimization for it. */ | |
545 | #define getc(_fp) _IO_getc (_fp) | |
546 | ||
acd7f096 | 547 | #ifdef __USE_POSIX |
2c008571 UD |
548 | /* These are defined in POSIX.1:1996. |
549 | ||
550 | These functions are possible cancellation points and therefore not | |
551 | marked with __THROW. */ | |
552 | extern int getc_unlocked (FILE *__stream); | |
553 | extern int getchar_unlocked (void); | |
acd7f096 | 554 | #endif /* Use POSIX. */ |
2f6d1f1b | 555 | |
209caedf | 556 | #ifdef __USE_MISC |
2c008571 UD |
557 | /* Faster version when locking is not necessary. |
558 | ||
559 | This function is not part of POSIX and therefore no official | |
560 | cancellation point. But due to similarity with an POSIX interface | |
561 | or due to the implementation it is a cancellation point and | |
562 | therefore not marked with __THROW. */ | |
563 | extern int fgetc_unlocked (FILE *__stream); | |
209caedf UD |
564 | #endif /* Use MISC. */ |
565 | ||
2f6d1f1b | 566 | |
7a5affeb | 567 | __BEGIN_NAMESPACE_STD |
2c008571 UD |
568 | /* Write a character to STREAM. |
569 | ||
570 | These functions are possible cancellation points and therefore not | |
bc2e3689 UD |
571 | marked with __THROW. |
572 | ||
573 | These functions is a possible cancellation point and therefore not | |
2c008571 | 574 | marked with __THROW. */ |
bc2e3689 UD |
575 | extern int fputc (int __c, FILE *__stream); |
576 | extern int putc (int __c, FILE *__stream); | |
2f6d1f1b | 577 | |
2c008571 UD |
578 | /* Write a character to stdout. |
579 | ||
580 | This function is a possible cancellation point and therefore not | |
581 | marked with __THROW. */ | |
582 | extern int putchar (int __c); | |
7a5affeb | 583 | __END_NAMESPACE_STD |
2f6d1f1b UD |
584 | |
585 | /* The C standard explicitly says this can be a macro, | |
586 | so we always do the optimization for it. */ | |
d41c6f61 | 587 | #define putc(_ch, _fp) _IO_putc (_ch, _fp) |
7c713e28 | 588 | |
2f6d1f1b | 589 | #ifdef __USE_MISC |
2c008571 UD |
590 | /* Faster version when locking is not necessary. |
591 | ||
592 | This function is not part of POSIX and therefore no official | |
593 | cancellation point. But due to similarity with an POSIX interface | |
594 | or due to the implementation it is a cancellation point and | |
595 | therefore not marked with __THROW. */ | |
596 | extern int fputc_unlocked (int __c, FILE *__stream); | |
2f6d1f1b UD |
597 | #endif /* Use MISC. */ |
598 | ||
acd7f096 | 599 | #ifdef __USE_POSIX |
2c008571 UD |
600 | /* These are defined in POSIX.1:1996. |
601 | ||
602 | These functions are possible cancellation points and therefore not | |
603 | marked with __THROW. */ | |
604 | extern int putc_unlocked (int __c, FILE *__stream); | |
605 | extern int putchar_unlocked (int __c); | |
acd7f096 | 606 | #endif /* Use POSIX. */ |
2f6d1f1b UD |
607 | |
608 | ||
ed9a38e2 | 609 | #if defined __USE_MISC \ |
2c008571 | 610 | || (defined __USE_XOPEN && !defined __USE_XOPEN2K) |
2f6d1f1b | 611 | /* Get a word (int) from STREAM. */ |
bc2e3689 | 612 | extern int getw (FILE *__stream); |
2f6d1f1b UD |
613 | |
614 | /* Write a word (int) to STREAM. */ | |
bc2e3689 | 615 | extern int putw (int __w, FILE *__stream); |
96aa2d94 RM |
616 | #endif |
617 | ||
7c713e28 | 618 | |
7a5affeb | 619 | __BEGIN_NAMESPACE_STD |
2c008571 UD |
620 | /* Get a newline-terminated string of finite length from STREAM. |
621 | ||
622 | This function is a possible cancellation point and therefore not | |
623 | marked with __THROW. */ | |
0476597b UD |
624 | extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream) |
625 | __wur; | |
2f6d1f1b | 626 | |
8ecd6b2a | 627 | #if !defined __USE_ISOC11 \ |
c6e013c1 | 628 | || (defined __cplusplus && __cplusplus <= 201103L) |
7a5affeb | 629 | /* Get a newline-terminated string from stdin, removing the newline. |
2c008571 UD |
630 | DO NOT USE THIS FUNCTION!! There is no limit on how much it will read. |
631 | ||
03a71829 UD |
632 | The function has been officially removed in ISO C11. This opportunity |
633 | is used to also remove it from the GNU feature list. It is now only | |
634 | available when explicitly using an old ISO C, Unix, or POSIX standard. | |
8ecd6b2a JM |
635 | GCC defines _GNU_SOURCE when building C++ code and the function is still |
636 | in C++11, so it is also available for C++. | |
03a71829 | 637 | |
2c008571 UD |
638 | This function is a possible cancellation point and therefore not |
639 | marked with __THROW. */ | |
16578fa7 | 640 | extern char *gets (char *__s) __wur __attribute_deprecated__; |
03a71829 | 641 | #endif |
7a5affeb UD |
642 | __END_NAMESPACE_STD |
643 | ||
77ccaba1 | 644 | #ifdef __USE_GNU |
2c008571 UD |
645 | /* This function does the same as `fgets' but does not lock the stream. |
646 | ||
647 | This function is not part of POSIX and therefore no official | |
648 | cancellation point. But due to similarity with an POSIX interface | |
649 | or due to the implementation it is a cancellation point and | |
650 | therefore not marked with __THROW. */ | |
c1422e5b | 651 | extern char *fgets_unlocked (char *__restrict __s, int __n, |
0476597b | 652 | FILE *__restrict __stream) __wur; |
77ccaba1 UD |
653 | #endif |
654 | ||
2f6d1f1b | 655 | |
f503060b | 656 | #ifdef __USE_XOPEN2K8 |
2f6d1f1b UD |
657 | /* Read up to (and including) a DELIMITER from STREAM into *LINEPTR |
658 | (and null-terminate it). *LINEPTR is a pointer returned from malloc (or | |
659 | NULL), pointing to *N characters of space. It is realloc'd as | |
660 | necessary. Returns the number of characters read (not including the | |
2c008571 UD |
661 | null terminator), or -1 on error or EOF. |
662 | ||
663 | These functions are not part of POSIX and therefore no official | |
664 | cancellation point. But due to similarity with an POSIX interface | |
665 | or due to the implementation they are cancellation points and | |
666 | therefore not marked with __THROW. */ | |
c1422e5b UD |
667 | extern _IO_ssize_t __getdelim (char **__restrict __lineptr, |
668 | size_t *__restrict __n, int __delimiter, | |
0476597b | 669 | FILE *__restrict __stream) __wur; |
c1422e5b UD |
670 | extern _IO_ssize_t getdelim (char **__restrict __lineptr, |
671 | size_t *__restrict __n, int __delimiter, | |
0476597b | 672 | FILE *__restrict __stream) __wur; |
2f6d1f1b | 673 | |
2c008571 UD |
674 | /* Like `getdelim', but reads up to a newline. |
675 | ||
676 | This function is not part of POSIX and therefore no official | |
677 | cancellation point. But due to similarity with an POSIX interface | |
678 | or due to the implementation it is a cancellation point and | |
679 | therefore not marked with __THROW. */ | |
c1422e5b UD |
680 | extern _IO_ssize_t getline (char **__restrict __lineptr, |
681 | size_t *__restrict __n, | |
0476597b | 682 | FILE *__restrict __stream) __wur; |
2f6d1f1b UD |
683 | #endif |
684 | ||
685 | ||
7a5affeb | 686 | __BEGIN_NAMESPACE_STD |
2c008571 UD |
687 | /* Write a string to STREAM. |
688 | ||
4c1423ed | 689 | This function is a possible cancellation point and therefore not |
2c008571 | 690 | marked with __THROW. */ |
a784e502 | 691 | extern int fputs (const char *__restrict __s, FILE *__restrict __stream); |
2c008571 UD |
692 | |
693 | /* Write a string, followed by a newline, to stdout. | |
50304ef0 | 694 | |
4c1423ed | 695 | This function is a possible cancellation point and therefore not |
2c008571 | 696 | marked with __THROW. */ |
a784e502 | 697 | extern int puts (const char *__s); |
2f6d1f1b UD |
698 | |
699 | ||
2c008571 | 700 | /* Push a character back onto the input buffer of STREAM. |
2f6d1f1b | 701 | |
4c1423ed | 702 | This function is a possible cancellation point and therefore not |
2c008571 | 703 | marked with __THROW. */ |
7d506e8e | 704 | extern int ungetc (int __c, FILE *__stream); |
2f6d1f1b | 705 | |
2c008571 UD |
706 | |
707 | /* Read chunks of generic data from STREAM. | |
708 | ||
4c1423ed | 709 | This function is a possible cancellation point and therefore not |
2c008571 | 710 | marked with __THROW. */ |
c1422e5b | 711 | extern size_t fread (void *__restrict __ptr, size_t __size, |
0476597b | 712 | size_t __n, FILE *__restrict __stream) __wur; |
2c008571 UD |
713 | /* Write chunks of generic data to STREAM. |
714 | ||
4c1423ed | 715 | This function is a possible cancellation point and therefore not |
2c008571 | 716 | marked with __THROW. */ |
a784e502 | 717 | extern size_t fwrite (const void *__restrict __ptr, size_t __size, |
288f9098 | 718 | size_t __n, FILE *__restrict __s); |
7a5affeb UD |
719 | __END_NAMESPACE_STD |
720 | ||
721 | #ifdef __USE_GNU | |
2c008571 UD |
722 | /* This function does the same as `fputs' but does not lock the stream. |
723 | ||
724 | This function is not part of POSIX and therefore no official | |
725 | cancellation point. But due to similarity with an POSIX interface | |
726 | or due to the implementation it is a cancellation point and | |
727 | therefore not marked with __THROW. */ | |
a784e502 | 728 | extern int fputs_unlocked (const char *__restrict __s, |
2c008571 | 729 | FILE *__restrict __stream); |
7a5affeb | 730 | #endif |
2f6d1f1b UD |
731 | |
732 | #ifdef __USE_MISC | |
2c008571 UD |
733 | /* Faster versions when locking is not necessary. |
734 | ||
735 | These functions are not part of POSIX and therefore no official | |
736 | cancellation point. But due to similarity with an POSIX interface | |
737 | or due to the implementation they are cancellation points and | |
738 | therefore not marked with __THROW. */ | |
c1422e5b | 739 | extern size_t fread_unlocked (void *__restrict __ptr, size_t __size, |
0476597b | 740 | size_t __n, FILE *__restrict __stream) __wur; |
a784e502 | 741 | extern size_t fwrite_unlocked (const void *__restrict __ptr, size_t __size, |
288f9098 | 742 | size_t __n, FILE *__restrict __stream); |
2f6d1f1b UD |
743 | #endif |
744 | ||
745 | ||
7a5affeb | 746 | __BEGIN_NAMESPACE_STD |
2c008571 UD |
747 | /* Seek to a certain position on STREAM. |
748 | ||
749 | This function is a possible cancellation point and therefore not | |
750 | marked with __THROW. */ | |
751 | extern int fseek (FILE *__stream, long int __off, int __whence); | |
752 | /* Return the current position of STREAM. | |
753 | ||
754 | This function is a possible cancellation point and therefore not | |
755 | marked with __THROW. */ | |
0476597b | 756 | extern long int ftell (FILE *__stream) __wur; |
2c008571 UD |
757 | /* Rewind to the beginning of STREAM. |
758 | ||
759 | This function is a possible cancellation point and therefore not | |
760 | marked with __THROW. */ | |
761 | extern void rewind (FILE *__stream); | |
7a5affeb | 762 | __END_NAMESPACE_STD |
2f6d1f1b | 763 | |
a5a0310d UD |
764 | /* The Single Unix Specification, Version 2, specifies an alternative, |
765 | more adequate interface for the two functions above which deal with | |
dfd2257a UD |
766 | file offset. `long int' is not the right type. These definitions |
767 | are originally defined in the Large File Support API. */ | |
768 | ||
7a80496f | 769 | #if defined __USE_LARGEFILE || defined __USE_XOPEN2K |
7a5affeb | 770 | # ifndef __USE_FILE_OFFSET64 |
2c008571 UD |
771 | /* Seek to a certain position on STREAM. |
772 | ||
773 | This function is a possible cancellation point and therefore not | |
774 | marked with __THROW. */ | |
775 | extern int fseeko (FILE *__stream, __off_t __off, int __whence); | |
776 | /* Return the current position of STREAM. | |
777 | ||
778 | This function is a possible cancellation point and therefore not | |
779 | marked with __THROW. */ | |
0476597b | 780 | extern __off_t ftello (FILE *__stream) __wur; |
7a5affeb UD |
781 | # else |
782 | # ifdef __REDIRECT | |
783 | extern int __REDIRECT (fseeko, | |
2c008571 | 784 | (FILE *__stream, __off64_t __off, int __whence), |
7a5affeb | 785 | fseeko64); |
2c008571 | 786 | extern __off64_t __REDIRECT (ftello, (FILE *__stream), ftello64); |
7a5affeb UD |
787 | # else |
788 | # define fseeko fseeko64 | |
789 | # define ftello ftello64 | |
790 | # endif | |
6796bc80 | 791 | # endif |
7a5affeb | 792 | #endif |
bfce746a | 793 | |
7a5affeb UD |
794 | __BEGIN_NAMESPACE_STD |
795 | #ifndef __USE_FILE_OFFSET64 | |
2c008571 UD |
796 | /* Get STREAM's position. |
797 | ||
798 | This function is a possible cancellation point and therefore not | |
799 | marked with __THROW. */ | |
800 | extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos); | |
801 | /* Set STREAM's position. | |
802 | ||
803 | This function is a possible cancellation point and therefore not | |
804 | marked with __THROW. */ | |
a784e502 | 805 | extern int fsetpos (FILE *__stream, const fpos_t *__pos); |
bfce746a | 806 | #else |
01cad722 | 807 | # ifdef __REDIRECT |
c1422e5b | 808 | extern int __REDIRECT (fgetpos, (FILE *__restrict __stream, |
2c008571 | 809 | fpos_t *__restrict __pos), fgetpos64); |
c1422e5b | 810 | extern int __REDIRECT (fsetpos, |
a784e502 | 811 | (FILE *__stream, const fpos_t *__pos), fsetpos64); |
bfce746a | 812 | # else |
bfce746a UD |
813 | # define fgetpos fgetpos64 |
814 | # define fsetpos fsetpos64 | |
dfd2257a | 815 | # endif |
bfce746a | 816 | #endif |
7a5affeb | 817 | __END_NAMESPACE_STD |
01cad722 | 818 | |
bfce746a | 819 | #ifdef __USE_LARGEFILE64 |
2c008571 | 820 | extern int fseeko64 (FILE *__stream, __off64_t __off, int __whence); |
0476597b | 821 | extern __off64_t ftello64 (FILE *__stream) __wur; |
2c008571 | 822 | extern int fgetpos64 (FILE *__restrict __stream, fpos64_t *__restrict __pos); |
a784e502 | 823 | extern int fsetpos64 (FILE *__stream, const fpos64_t *__pos); |
dfd2257a | 824 | #endif |
2f6d1f1b | 825 | |
7a5affeb | 826 | __BEGIN_NAMESPACE_STD |
2f6d1f1b | 827 | /* Clear the error and EOF indicators for STREAM. */ |
c1422e5b | 828 | extern void clearerr (FILE *__stream) __THROW; |
2f6d1f1b | 829 | /* Return the EOF indicator for STREAM. */ |
7d506e8e | 830 | extern int feof (FILE *__stream) __THROW __wur; |
2f6d1f1b | 831 | /* Return the error indicator for STREAM. */ |
7d506e8e | 832 | extern int ferror (FILE *__stream) __THROW __wur; |
7a5affeb | 833 | __END_NAMESPACE_STD |
2f6d1f1b UD |
834 | |
835 | #ifdef __USE_MISC | |
836 | /* Faster versions when locking is not required. */ | |
c1422e5b | 837 | extern void clearerr_unlocked (FILE *__stream) __THROW; |
7d506e8e UD |
838 | extern int feof_unlocked (FILE *__stream) __THROW __wur; |
839 | extern int ferror_unlocked (FILE *__stream) __THROW __wur; | |
2f6d1f1b UD |
840 | #endif |
841 | ||
842 | ||
7a5affeb | 843 | __BEGIN_NAMESPACE_STD |
2c008571 UD |
844 | /* Print a message describing the meaning of the value of errno. |
845 | ||
846 | This function is a possible cancellation point and therefore not | |
847 | marked with __THROW. */ | |
a784e502 | 848 | extern void perror (const char *__s); |
7a5affeb | 849 | __END_NAMESPACE_STD |
2f6d1f1b | 850 | |
b264e1d1 RM |
851 | /* Provide the declarations for `sys_errlist' and `sys_nerr' if they |
852 | are available on this system. Even if available, these variables | |
853 | should not be used directly. The `strerror' function provides | |
854 | all the necessary functionality. */ | |
855 | #include <bits/sys_errlist.h> | |
2f6d1f1b UD |
856 | |
857 | ||
858 | #ifdef __USE_POSIX | |
859 | /* Return the system file descriptor for STREAM. */ | |
7d506e8e | 860 | extern int fileno (FILE *__stream) __THROW __wur; |
2f6d1f1b UD |
861 | #endif /* Use POSIX. */ |
862 | ||
863 | #ifdef __USE_MISC | |
864 | /* Faster version when locking is not required. */ | |
7d506e8e | 865 | extern int fileno_unlocked (FILE *__stream) __THROW __wur; |
2f6d1f1b UD |
866 | #endif |
867 | ||
868 | ||
acd7f096 | 869 | #ifdef __USE_POSIX2 |
bc2e3689 UD |
870 | /* Create a new stream connected to a pipe running the given command. |
871 | ||
872 | This function is a possible cancellation point and therefore not | |
873 | marked with __THROW. */ | |
a784e502 | 874 | extern FILE *popen (const char *__command, const char *__modes) __wur; |
2c008571 | 875 | |
bc2e3689 UD |
876 | /* Close a stream opened by popen and return the status of its child. |
877 | ||
878 | This function is a possible cancellation point and therefore not | |
879 | marked with __THROW. */ | |
880 | extern int pclose (FILE *__stream); | |
2f6d1f1b UD |
881 | #endif |
882 | ||
883 | ||
884 | #ifdef __USE_POSIX | |
885 | /* Return the name of the controlling terminal. */ | |
c1422e5b | 886 | extern char *ctermid (char *__s) __THROW; |
2f6d1f1b UD |
887 | #endif /* Use POSIX. */ |
888 | ||
889 | ||
12404bb0 | 890 | #if (defined __USE_XOPEN && !defined __USE_XOPEN2K) || defined __USE_GNU |
2f6d1f1b | 891 | /* Return the name of the current user. */ |
8dab36a1 | 892 | extern char *cuserid (char *__s); |
219aa9e9 | 893 | #endif /* Use X/Open, but not issue 6. */ |
2f6d1f1b UD |
894 | |
895 | ||
896 | #ifdef __USE_GNU | |
897 | struct obstack; /* See <obstack.h>. */ | |
898 | ||
899 | /* Write formatted output to an obstack. */ | |
c1422e5b | 900 | extern int obstack_printf (struct obstack *__restrict __obstack, |
a784e502 | 901 | const char *__restrict __format, ...) |
9beb2334 | 902 | __THROWNL __attribute__ ((__format__ (__printf__, 2, 3))); |
c1422e5b | 903 | extern int obstack_vprintf (struct obstack *__restrict __obstack, |
a784e502 | 904 | const char *__restrict __format, |
81c64d40 | 905 | _G_va_list __args) |
9beb2334 | 906 | __THROWNL __attribute__ ((__format__ (__printf__, 2, 0))); |
2f6d1f1b UD |
907 | #endif /* Use GNU. */ |
908 | ||
909 | ||
acd7f096 | 910 | #ifdef __USE_POSIX |
2f6d1f1b UD |
911 | /* These are defined in POSIX.1:1996. */ |
912 | ||
913 | /* Acquire ownership of STREAM. */ | |
c1422e5b | 914 | extern void flockfile (FILE *__stream) __THROW; |
2f6d1f1b UD |
915 | |
916 | /* Try to acquire ownership of STREAM but do not block if it is not | |
917 | possible. */ | |
0476597b | 918 | extern int ftrylockfile (FILE *__stream) __THROW __wur; |
2f6d1f1b UD |
919 | |
920 | /* Relinquish the ownership granted for STREAM. */ | |
c1422e5b | 921 | extern void funlockfile (FILE *__stream) __THROW; |
acd7f096 | 922 | #endif /* POSIX */ |
2f6d1f1b | 923 | |
219aa9e9 | 924 | #if defined __USE_XOPEN && !defined __USE_XOPEN2K && !defined __USE_GNU |
9756dfe1 UD |
925 | /* The X/Open standard requires some functions and variables to be |
926 | declared here which do not belong into this header. But we have to | |
927 | follow. In GNU mode we don't do this nonsense. */ | |
a379e56a UD |
928 | # define __need_getopt |
929 | # include <getopt.h> | |
219aa9e9 | 930 | #endif /* X/Open, but not issue 6 and not for GNU. */ |
9756dfe1 | 931 | |
085320f5 | 932 | /* If we are compiling with optimizing read this file. It contains |
9b2c7523 | 933 | several optimizing inline functions and macros. */ |
085320f5 UD |
934 | #ifdef __USE_EXTERN_INLINES |
935 | # include <bits/stdio.h> | |
936 | #endif | |
884ddc50 | 937 | #if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function |
b5cc329c UD |
938 | # include <bits/stdio2.h> |
939 | #endif | |
c6251f03 RM |
940 | #ifdef __LDBL_COMPAT |
941 | # include <bits/stdio-ldbl.h> | |
942 | #endif | |
2f6d1f1b | 943 | |
085320f5 | 944 | __END_DECLS |
f41c8091 | 945 | |
2f6d1f1b | 946 | #endif /* <stdio.h> included. */ |
7c713e28 | 947 | |
96aa2d94 | 948 | #endif /* !_STDIO_H */ |