lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* Define ISO C stdio on top of C++ iostreams. |
| 2 | Copyright (C) 1991-2015 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 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. |
| 9 | |
| 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 |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | /* |
| 20 | * ISO C99 Standard: 7.19 Input/output <stdio.h> |
| 21 | */ |
| 22 | |
| 23 | #ifndef _STDIO_H |
| 24 | |
| 25 | #if !defined __need_FILE && !defined __need___FILE |
| 26 | # define _STDIO_H 1 |
| 27 | # include <features.h> |
| 28 | |
| 29 | __BEGIN_DECLS |
| 30 | |
| 31 | # define __need_size_t |
| 32 | # define __need_NULL |
| 33 | # include <stddef.h> |
| 34 | |
| 35 | # include <bits/types.h> |
| 36 | # define __need_FILE |
| 37 | # define __need___FILE |
| 38 | #endif /* Don't need FILE. */ |
| 39 | |
| 40 | |
| 41 | #if !defined __FILE_defined && defined __need_FILE |
| 42 | |
| 43 | /* Define outside of namespace so the C++ is happy. */ |
| 44 | struct _IO_FILE; |
| 45 | |
| 46 | __BEGIN_NAMESPACE_STD |
| 47 | /* The opaque type of streams. This is the definition used elsewhere. */ |
| 48 | typedef struct _IO_FILE FILE; |
| 49 | __END_NAMESPACE_STD |
| 50 | #if defined __USE_LARGEFILE64 || defined __USE_POSIX \ |
| 51 | || defined __USE_ISOC99 || defined __USE_XOPEN \ |
| 52 | || defined __USE_POSIX2 |
| 53 | __USING_NAMESPACE_STD(FILE) |
| 54 | #endif |
| 55 | |
| 56 | # define __FILE_defined 1 |
| 57 | #endif /* FILE not defined. */ |
| 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 |
| 69 | |
| 70 | |
| 71 | #ifdef _STDIO_H |
| 72 | #define _STDIO_USES_IOSTREAM |
| 73 | |
| 74 | #include <libio.h> |
| 75 | |
| 76 | #if defined __USE_XOPEN || defined __USE_XOPEN2K8 |
| 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 | |
| 87 | #ifdef __USE_XOPEN2K8 |
| 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 |
| 100 | |
| 101 | # ifndef __ssize_t_defined |
| 102 | typedef __ssize_t ssize_t; |
| 103 | # define __ssize_t_defined |
| 104 | # endif |
| 105 | #endif |
| 106 | |
| 107 | /* The type of the second argument to `fgetpos' and `fsetpos'. */ |
| 108 | __BEGIN_NAMESPACE_STD |
| 109 | #ifndef __USE_FILE_OFFSET64 |
| 110 | typedef _G_fpos_t fpos_t; |
| 111 | #else |
| 112 | typedef _G_fpos64_t fpos_t; |
| 113 | #endif |
| 114 | __END_NAMESPACE_STD |
| 115 | #ifdef __USE_LARGEFILE64 |
| 116 | typedef _G_fpos64_t fpos64_t; |
| 117 | #endif |
| 118 | |
| 119 | /* The possibilities for the third argument to `setvbuf'. */ |
| 120 | #define _IOFBF 0 /* Fully buffered. */ |
| 121 | #define _IOLBF 1 /* Line buffered. */ |
| 122 | #define _IONBF 2 /* No buffering. */ |
| 123 | |
| 124 | |
| 125 | /* Default buffer size. */ |
| 126 | #ifndef BUFSIZ |
| 127 | # define BUFSIZ _IO_BUFSIZ |
| 128 | #endif |
| 129 | |
| 130 | |
| 131 | /* End of file character. |
| 132 | Some things throughout the library rely on this being -1. */ |
| 133 | #ifndef EOF |
| 134 | # define EOF (-1) |
| 135 | #endif |
| 136 | |
| 137 | |
| 138 | /* The possibilities for the third argument to `fseek'. |
| 139 | These values should not be changed. */ |
| 140 | #define SEEK_SET 0 /* Seek from beginning of file. */ |
| 141 | #define SEEK_CUR 1 /* Seek from current position. */ |
| 142 | #define SEEK_END 2 /* Seek from end of file. */ |
| 143 | #ifdef __USE_GNU |
| 144 | # define SEEK_DATA 3 /* Seek to next data. */ |
| 145 | # define SEEK_HOLE 4 /* Seek to next hole. */ |
| 146 | #endif |
| 147 | |
| 148 | |
| 149 | #if defined __USE_MISC || defined __USE_XOPEN |
| 150 | /* Default path prefix for `tempnam' and `tmpnam'. */ |
| 151 | # define P_tmpdir "/tmp" |
| 152 | #endif |
| 153 | |
| 154 | |
| 155 | /* Get the values: |
| 156 | L_tmpnam How long an array of chars must be to be passed to `tmpnam'. |
| 157 | TMP_MAX The minimum number of unique filenames generated by tmpnam |
| 158 | (and tempnam when it uses tmpnam's name space), |
| 159 | or tempnam (the two are separate). |
| 160 | L_ctermid How long an array to pass to `ctermid'. |
| 161 | L_cuserid How long an array to pass to `cuserid'. |
| 162 | FOPEN_MAX Minimum number of files that can be open at once. |
| 163 | FILENAME_MAX Maximum length of a filename. */ |
| 164 | #include <bits/stdio_lim.h> |
| 165 | |
| 166 | |
| 167 | /* Standard streams. */ |
| 168 | extern struct _IO_FILE *stdin; /* Standard input stream. */ |
| 169 | extern struct _IO_FILE *stdout; /* Standard output stream. */ |
| 170 | extern struct _IO_FILE *stderr; /* Standard error output stream. */ |
| 171 | /* C89/C99 say they're macros. Make them happy. */ |
| 172 | #define stdin stdin |
| 173 | #define stdout stdout |
| 174 | #define stderr stderr |
| 175 | |
| 176 | __BEGIN_NAMESPACE_STD |
| 177 | /* Remove file FILENAME. */ |
| 178 | extern int remove (const char *__filename) __THROW; |
| 179 | /* Rename file OLD to NEW. */ |
| 180 | extern int rename (const char *__old, const char *__new) __THROW; |
| 181 | __END_NAMESPACE_STD |
| 182 | |
| 183 | #ifdef __USE_ATFILE |
| 184 | /* Rename file OLD relative to OLDFD to NEW relative to NEWFD. */ |
| 185 | extern int renameat (int __oldfd, const char *__old, int __newfd, |
| 186 | const char *__new) __THROW; |
| 187 | #endif |
| 188 | |
| 189 | __BEGIN_NAMESPACE_STD |
| 190 | /* Create a temporary file and open it read/write. |
| 191 | |
| 192 | This function is a possible cancellation point and therefore not |
| 193 | marked with __THROW. */ |
| 194 | #ifndef __USE_FILE_OFFSET64 |
| 195 | extern FILE *tmpfile (void) __wur; |
| 196 | #else |
| 197 | # ifdef __REDIRECT |
| 198 | extern FILE *__REDIRECT (tmpfile, (void), tmpfile64) __wur; |
| 199 | # else |
| 200 | # define tmpfile tmpfile64 |
| 201 | # endif |
| 202 | #endif |
| 203 | |
| 204 | #ifdef __USE_LARGEFILE64 |
| 205 | extern FILE *tmpfile64 (void) __wur; |
| 206 | #endif |
| 207 | |
| 208 | /* Generate a temporary filename. */ |
| 209 | extern char *tmpnam (char *__s) __THROW __wur; |
| 210 | __END_NAMESPACE_STD |
| 211 | |
| 212 | #ifdef __USE_MISC |
| 213 | /* This is the reentrant variant of `tmpnam'. The only difference is |
| 214 | that it does not allow S to be NULL. */ |
| 215 | extern char *tmpnam_r (char *__s) __THROW __wur; |
| 216 | #endif |
| 217 | |
| 218 | |
| 219 | #if defined __USE_MISC || defined __USE_XOPEN |
| 220 | /* Generate a unique temporary filename using up to five characters of PFX |
| 221 | if it is not NULL. The directory to put this file in is searched for |
| 222 | as follows: First the environment variable "TMPDIR" is checked. |
| 223 | If it contains the name of a writable directory, that directory is used. |
| 224 | If not and if DIR is not NULL, that value is checked. If that fails, |
| 225 | P_tmpdir is tried and finally "/tmp". The storage for the filename |
| 226 | is allocated by `malloc'. */ |
| 227 | extern char *tempnam (const char *__dir, const char *__pfx) |
| 228 | __THROW __attribute_malloc__ __wur; |
| 229 | #endif |
| 230 | |
| 231 | |
| 232 | __BEGIN_NAMESPACE_STD |
| 233 | /* Close STREAM. |
| 234 | |
| 235 | This function is a possible cancellation point and therefore not |
| 236 | marked with __THROW. */ |
| 237 | extern int fclose (FILE *__stream); |
| 238 | /* Flush STREAM, or all streams if STREAM is NULL. |
| 239 | |
| 240 | This function is a possible cancellation point and therefore not |
| 241 | marked with __THROW. */ |
| 242 | extern int fflush (FILE *__stream); |
| 243 | __END_NAMESPACE_STD |
| 244 | |
| 245 | #ifdef __USE_MISC |
| 246 | /* Faster versions when locking is not required. |
| 247 | |
| 248 | This function is not part of POSIX and therefore no official |
| 249 | cancellation point. But due to similarity with an POSIX interface |
| 250 | or due to the implementation it is a cancellation point and |
| 251 | therefore not marked with __THROW. */ |
| 252 | extern int fflush_unlocked (FILE *__stream); |
| 253 | #endif |
| 254 | |
| 255 | #ifdef __USE_GNU |
| 256 | /* Close all streams. |
| 257 | |
| 258 | This function is not part of POSIX and therefore no official |
| 259 | cancellation point. But due to similarity with an POSIX interface |
| 260 | or due to the implementation it is a cancellation point and |
| 261 | therefore not marked with __THROW. */ |
| 262 | extern int fcloseall (void); |
| 263 | #endif |
| 264 | |
| 265 | |
| 266 | __BEGIN_NAMESPACE_STD |
| 267 | #ifndef __USE_FILE_OFFSET64 |
| 268 | /* Open a file and create a new stream for it. |
| 269 | |
| 270 | This function is a possible cancellation point and therefore not |
| 271 | marked with __THROW. */ |
| 272 | extern FILE *fopen (const char *__restrict __filename, |
| 273 | const char *__restrict __modes) __wur; |
| 274 | /* Open a file, replacing an existing stream with it. |
| 275 | |
| 276 | This function is a possible cancellation point and therefore not |
| 277 | marked with __THROW. */ |
| 278 | extern FILE *freopen (const char *__restrict __filename, |
| 279 | const char *__restrict __modes, |
| 280 | FILE *__restrict __stream) __wur; |
| 281 | #else |
| 282 | # ifdef __REDIRECT |
| 283 | extern FILE *__REDIRECT (fopen, (const char *__restrict __filename, |
| 284 | const char *__restrict __modes), fopen64) |
| 285 | __wur; |
| 286 | extern FILE *__REDIRECT (freopen, (const char *__restrict __filename, |
| 287 | const char *__restrict __modes, |
| 288 | FILE *__restrict __stream), freopen64) |
| 289 | __wur; |
| 290 | # else |
| 291 | # define fopen fopen64 |
| 292 | # define freopen freopen64 |
| 293 | # endif |
| 294 | #endif |
| 295 | __END_NAMESPACE_STD |
| 296 | #ifdef __USE_LARGEFILE64 |
| 297 | extern FILE *fopen64 (const char *__restrict __filename, |
| 298 | const char *__restrict __modes) __wur; |
| 299 | extern FILE *freopen64 (const char *__restrict __filename, |
| 300 | const char *__restrict __modes, |
| 301 | FILE *__restrict __stream) __wur; |
| 302 | #endif |
| 303 | |
| 304 | #ifdef __USE_POSIX |
| 305 | /* Create a new stream that refers to an existing system file descriptor. */ |
| 306 | extern FILE *fdopen (int __fd, const char *__modes) __THROW __wur; |
| 307 | #endif |
| 308 | |
| 309 | #ifdef __USE_GNU |
| 310 | /* Create a new stream that refers to the given magic cookie, |
| 311 | and uses the given functions for input and output. */ |
| 312 | extern FILE *fopencookie (void *__restrict __magic_cookie, |
| 313 | const char *__restrict __modes, |
| 314 | _IO_cookie_io_functions_t __io_funcs) __THROW __wur; |
| 315 | #endif |
| 316 | |
| 317 | #ifdef __USE_XOPEN2K8 |
| 318 | /* Create a new stream that refers to a memory buffer. */ |
| 319 | extern FILE *fmemopen (void *__s, size_t __len, const char *__modes) |
| 320 | __THROW __wur; |
| 321 | |
| 322 | /* Open a stream that writes into a malloc'd buffer that is expanded as |
| 323 | necessary. *BUFLOC and *SIZELOC are updated with the buffer's location |
| 324 | and the number of characters written on fflush or fclose. */ |
| 325 | extern FILE *open_memstream (char **__bufloc, size_t *__sizeloc) __THROW __wur; |
| 326 | #endif |
| 327 | |
| 328 | |
| 329 | __BEGIN_NAMESPACE_STD |
| 330 | /* If BUF is NULL, make STREAM unbuffered. |
| 331 | Else make it use buffer BUF, of size BUFSIZ. */ |
| 332 | extern void setbuf (FILE *__restrict __stream, char *__restrict __buf) __THROW; |
| 333 | /* Make STREAM use buffering mode MODE. |
| 334 | If BUF is not NULL, use N bytes of it for buffering; |
| 335 | else allocate an internal buffer N bytes long. */ |
| 336 | extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf, |
| 337 | int __modes, size_t __n) __THROW; |
| 338 | __END_NAMESPACE_STD |
| 339 | |
| 340 | #ifdef __USE_MISC |
| 341 | /* If BUF is NULL, make STREAM unbuffered. |
| 342 | Else make it use SIZE bytes of BUF for buffering. */ |
| 343 | extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf, |
| 344 | size_t __size) __THROW; |
| 345 | |
| 346 | /* Make STREAM line-buffered. */ |
| 347 | extern void setlinebuf (FILE *__stream) __THROW; |
| 348 | #endif |
| 349 | |
| 350 | |
| 351 | __BEGIN_NAMESPACE_STD |
| 352 | /* Write formatted output to STREAM. |
| 353 | |
| 354 | This function is a possible cancellation point and therefore not |
| 355 | marked with __THROW. */ |
| 356 | extern int fprintf (FILE *__restrict __stream, |
| 357 | const char *__restrict __format, ...); |
| 358 | /* Write formatted output to stdout. |
| 359 | |
| 360 | This function is a possible cancellation point and therefore not |
| 361 | marked with __THROW. */ |
| 362 | extern int printf (const char *__restrict __format, ...); |
| 363 | /* Write formatted output to S. */ |
| 364 | extern int sprintf (char *__restrict __s, |
| 365 | const char *__restrict __format, ...) __THROWNL; |
| 366 | |
| 367 | /* Write formatted output to S from argument list ARG. |
| 368 | |
| 369 | This function is a possible cancellation point and therefore not |
| 370 | marked with __THROW. */ |
| 371 | extern int vfprintf (FILE *__restrict __s, const char *__restrict __format, |
| 372 | _G_va_list __arg); |
| 373 | /* Write formatted output to stdout from argument list ARG. |
| 374 | |
| 375 | This function is a possible cancellation point and therefore not |
| 376 | marked with __THROW. */ |
| 377 | extern int vprintf (const char *__restrict __format, _G_va_list __arg); |
| 378 | /* Write formatted output to S from argument list ARG. */ |
| 379 | extern int vsprintf (char *__restrict __s, const char *__restrict __format, |
| 380 | _G_va_list __arg) __THROWNL; |
| 381 | __END_NAMESPACE_STD |
| 382 | |
| 383 | #if defined __USE_ISOC99 || defined __USE_UNIX98 |
| 384 | __BEGIN_NAMESPACE_C99 |
| 385 | /* Maximum chars of output to write in MAXLEN. */ |
| 386 | extern int snprintf (char *__restrict __s, size_t __maxlen, |
| 387 | const char *__restrict __format, ...) |
| 388 | __THROWNL __attribute__ ((__format__ (__printf__, 3, 4))); |
| 389 | |
| 390 | extern int vsnprintf (char *__restrict __s, size_t __maxlen, |
| 391 | const char *__restrict __format, _G_va_list __arg) |
| 392 | __THROWNL __attribute__ ((__format__ (__printf__, 3, 0))); |
| 393 | __END_NAMESPACE_C99 |
| 394 | #endif |
| 395 | |
| 396 | #ifdef __USE_GNU |
| 397 | /* Write formatted output to a string dynamically allocated with `malloc'. |
| 398 | Store the address of the string in *PTR. */ |
| 399 | extern int vasprintf (char **__restrict __ptr, const char *__restrict __f, |
| 400 | _G_va_list __arg) |
| 401 | __THROWNL __attribute__ ((__format__ (__printf__, 2, 0))) __wur; |
| 402 | extern int __asprintf (char **__restrict __ptr, |
| 403 | const char *__restrict __fmt, ...) |
| 404 | __THROWNL __attribute__ ((__format__ (__printf__, 2, 3))) __wur; |
| 405 | extern int asprintf (char **__restrict __ptr, |
| 406 | const char *__restrict __fmt, ...) |
| 407 | __THROWNL __attribute__ ((__format__ (__printf__, 2, 3))) __wur; |
| 408 | #endif |
| 409 | |
| 410 | #ifdef __USE_XOPEN2K8 |
| 411 | /* Write formatted output to a file descriptor. */ |
| 412 | extern int vdprintf (int __fd, const char *__restrict __fmt, |
| 413 | _G_va_list __arg) |
| 414 | __attribute__ ((__format__ (__printf__, 2, 0))); |
| 415 | extern int dprintf (int __fd, const char *__restrict __fmt, ...) |
| 416 | __attribute__ ((__format__ (__printf__, 2, 3))); |
| 417 | #endif |
| 418 | |
| 419 | |
| 420 | __BEGIN_NAMESPACE_STD |
| 421 | /* Read formatted input from STREAM. |
| 422 | |
| 423 | This function is a possible cancellation point and therefore not |
| 424 | marked with __THROW. */ |
| 425 | extern int fscanf (FILE *__restrict __stream, |
| 426 | const char *__restrict __format, ...) __wur; |
| 427 | /* Read formatted input from stdin. |
| 428 | |
| 429 | This function is a possible cancellation point and therefore not |
| 430 | marked with __THROW. */ |
| 431 | extern int scanf (const char *__restrict __format, ...) __wur; |
| 432 | /* Read formatted input from S. */ |
| 433 | extern int sscanf (const char *__restrict __s, |
| 434 | const char *__restrict __format, ...) __THROW; |
| 435 | |
| 436 | #if defined __USE_ISOC99 && !defined __USE_GNU \ |
| 437 | && (!defined __LDBL_COMPAT || !defined __REDIRECT) \ |
| 438 | && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K) |
| 439 | # ifdef __REDIRECT |
| 440 | /* For strict ISO C99 or POSIX compliance disallow %as, %aS and %a[ |
| 441 | GNU extension which conflicts with valid %a followed by letter |
| 442 | s, S or [. */ |
| 443 | extern int __REDIRECT (fscanf, (FILE *__restrict __stream, |
| 444 | const char *__restrict __format, ...), |
| 445 | __isoc99_fscanf) __wur; |
| 446 | extern int __REDIRECT (scanf, (const char *__restrict __format, ...), |
| 447 | __isoc99_scanf) __wur; |
| 448 | extern int __REDIRECT_NTH (sscanf, (const char *__restrict __s, |
| 449 | const char *__restrict __format, ...), |
| 450 | __isoc99_sscanf); |
| 451 | # else |
| 452 | extern int __isoc99_fscanf (FILE *__restrict __stream, |
| 453 | const char *__restrict __format, ...) __wur; |
| 454 | extern int __isoc99_scanf (const char *__restrict __format, ...) __wur; |
| 455 | extern int __isoc99_sscanf (const char *__restrict __s, |
| 456 | const char *__restrict __format, ...) __THROW; |
| 457 | # define fscanf __isoc99_fscanf |
| 458 | # define scanf __isoc99_scanf |
| 459 | # define sscanf __isoc99_sscanf |
| 460 | # endif |
| 461 | #endif |
| 462 | |
| 463 | __END_NAMESPACE_STD |
| 464 | |
| 465 | #ifdef __USE_ISOC99 |
| 466 | __BEGIN_NAMESPACE_C99 |
| 467 | /* Read formatted input from S into argument list ARG. |
| 468 | |
| 469 | This function is a possible cancellation point and therefore not |
| 470 | marked with __THROW. */ |
| 471 | extern int vfscanf (FILE *__restrict __s, const char *__restrict __format, |
| 472 | _G_va_list __arg) |
| 473 | __attribute__ ((__format__ (__scanf__, 2, 0))) __wur; |
| 474 | |
| 475 | /* Read formatted input from stdin into argument list ARG. |
| 476 | |
| 477 | This function is a possible cancellation point and therefore not |
| 478 | marked with __THROW. */ |
| 479 | extern int vscanf (const char *__restrict __format, _G_va_list __arg) |
| 480 | __attribute__ ((__format__ (__scanf__, 1, 0))) __wur; |
| 481 | |
| 482 | /* Read formatted input from S into argument list ARG. */ |
| 483 | extern int vsscanf (const char *__restrict __s, |
| 484 | const char *__restrict __format, _G_va_list __arg) |
| 485 | __THROW __attribute__ ((__format__ (__scanf__, 2, 0))); |
| 486 | |
| 487 | # if !defined __USE_GNU \ |
| 488 | && (!defined __LDBL_COMPAT || !defined __REDIRECT) \ |
| 489 | && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K) |
| 490 | # ifdef __REDIRECT |
| 491 | /* For strict ISO C99 or POSIX compliance disallow %as, %aS and %a[ |
| 492 | GNU extension which conflicts with valid %a followed by letter |
| 493 | s, S or [. */ |
| 494 | extern int __REDIRECT (vfscanf, |
| 495 | (FILE *__restrict __s, |
| 496 | const char *__restrict __format, _G_va_list __arg), |
| 497 | __isoc99_vfscanf) |
| 498 | __attribute__ ((__format__ (__scanf__, 2, 0))) __wur; |
| 499 | extern int __REDIRECT (vscanf, (const char *__restrict __format, |
| 500 | _G_va_list __arg), __isoc99_vscanf) |
| 501 | __attribute__ ((__format__ (__scanf__, 1, 0))) __wur; |
| 502 | extern int __REDIRECT_NTH (vsscanf, |
| 503 | (const char *__restrict __s, |
| 504 | const char *__restrict __format, |
| 505 | _G_va_list __arg), __isoc99_vsscanf) |
| 506 | __attribute__ ((__format__ (__scanf__, 2, 0))); |
| 507 | # else |
| 508 | extern int __isoc99_vfscanf (FILE *__restrict __s, |
| 509 | const char *__restrict __format, |
| 510 | _G_va_list __arg) __wur; |
| 511 | extern int __isoc99_vscanf (const char *__restrict __format, |
| 512 | _G_va_list __arg) __wur; |
| 513 | extern int __isoc99_vsscanf (const char *__restrict __s, |
| 514 | const char *__restrict __format, |
| 515 | _G_va_list __arg) __THROW; |
| 516 | # define vfscanf __isoc99_vfscanf |
| 517 | # define vscanf __isoc99_vscanf |
| 518 | # define vsscanf __isoc99_vsscanf |
| 519 | # endif |
| 520 | # endif |
| 521 | |
| 522 | __END_NAMESPACE_C99 |
| 523 | #endif /* Use ISO C9x. */ |
| 524 | |
| 525 | |
| 526 | __BEGIN_NAMESPACE_STD |
| 527 | /* Read a character from STREAM. |
| 528 | |
| 529 | These functions are possible cancellation points and therefore not |
| 530 | marked with __THROW. */ |
| 531 | extern int fgetc (FILE *__stream); |
| 532 | extern int getc (FILE *__stream); |
| 533 | |
| 534 | /* Read a character from stdin. |
| 535 | |
| 536 | This function is a possible cancellation point and therefore not |
| 537 | marked with __THROW. */ |
| 538 | extern int getchar (void); |
| 539 | __END_NAMESPACE_STD |
| 540 | |
| 541 | /* The C standard explicitly says this is a macro, so we always do the |
| 542 | optimization for it. */ |
| 543 | #define getc(_fp) _IO_getc (_fp) |
| 544 | |
| 545 | #ifdef __USE_POSIX |
| 546 | /* These are defined in POSIX.1:1996. |
| 547 | |
| 548 | These functions are possible cancellation points and therefore not |
| 549 | marked with __THROW. */ |
| 550 | extern int getc_unlocked (FILE *__stream); |
| 551 | extern int getchar_unlocked (void); |
| 552 | #endif /* Use POSIX. */ |
| 553 | |
| 554 | #ifdef __USE_MISC |
| 555 | /* Faster version when locking is not necessary. |
| 556 | |
| 557 | This function is not part of POSIX and therefore no official |
| 558 | cancellation point. But due to similarity with an POSIX interface |
| 559 | or due to the implementation it is a cancellation point and |
| 560 | therefore not marked with __THROW. */ |
| 561 | extern int fgetc_unlocked (FILE *__stream); |
| 562 | #endif /* Use MISC. */ |
| 563 | |
| 564 | |
| 565 | __BEGIN_NAMESPACE_STD |
| 566 | /* Write a character to STREAM. |
| 567 | |
| 568 | These functions are possible cancellation points and therefore not |
| 569 | marked with __THROW. |
| 570 | |
| 571 | These functions is a possible cancellation point and therefore not |
| 572 | marked with __THROW. */ |
| 573 | extern int fputc (int __c, FILE *__stream); |
| 574 | extern int putc (int __c, FILE *__stream); |
| 575 | |
| 576 | /* Write a character to stdout. |
| 577 | |
| 578 | This function is a possible cancellation point and therefore not |
| 579 | marked with __THROW. */ |
| 580 | extern int putchar (int __c); |
| 581 | __END_NAMESPACE_STD |
| 582 | |
| 583 | /* The C standard explicitly says this can be a macro, |
| 584 | so we always do the optimization for it. */ |
| 585 | #define putc(_ch, _fp) _IO_putc (_ch, _fp) |
| 586 | |
| 587 | #ifdef __USE_MISC |
| 588 | /* Faster version when locking is not necessary. |
| 589 | |
| 590 | This function is not part of POSIX and therefore no official |
| 591 | cancellation point. But due to similarity with an POSIX interface |
| 592 | or due to the implementation it is a cancellation point and |
| 593 | therefore not marked with __THROW. */ |
| 594 | extern int fputc_unlocked (int __c, FILE *__stream); |
| 595 | #endif /* Use MISC. */ |
| 596 | |
| 597 | #ifdef __USE_POSIX |
| 598 | /* These are defined in POSIX.1:1996. |
| 599 | |
| 600 | These functions are possible cancellation points and therefore not |
| 601 | marked with __THROW. */ |
| 602 | extern int putc_unlocked (int __c, FILE *__stream); |
| 603 | extern int putchar_unlocked (int __c); |
| 604 | #endif /* Use POSIX. */ |
| 605 | |
| 606 | |
| 607 | #if defined __USE_MISC \ |
| 608 | || (defined __USE_XOPEN && !defined __USE_XOPEN2K) |
| 609 | /* Get a word (int) from STREAM. */ |
| 610 | extern int getw (FILE *__stream); |
| 611 | |
| 612 | /* Write a word (int) to STREAM. */ |
| 613 | extern int putw (int __w, FILE *__stream); |
| 614 | #endif |
| 615 | |
| 616 | |
| 617 | __BEGIN_NAMESPACE_STD |
| 618 | /* Get a newline-terminated string of finite length from STREAM. |
| 619 | |
| 620 | This function is a possible cancellation point and therefore not |
| 621 | marked with __THROW. */ |
| 622 | extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream) |
| 623 | __wur; |
| 624 | |
| 625 | #if !defined __USE_ISOC11 \ |
| 626 | || (defined __cplusplus && __cplusplus <= 201103L) |
| 627 | /* Get a newline-terminated string from stdin, removing the newline. |
| 628 | DO NOT USE THIS FUNCTION!! There is no limit on how much it will read. |
| 629 | |
| 630 | The function has been officially removed in ISO C11. This opportunity |
| 631 | is used to also remove it from the GNU feature list. It is now only |
| 632 | available when explicitly using an old ISO C, Unix, or POSIX standard. |
| 633 | GCC defines _GNU_SOURCE when building C++ code and the function is still |
| 634 | in C++11, so it is also available for C++. |
| 635 | |
| 636 | This function is a possible cancellation point and therefore not |
| 637 | marked with __THROW. */ |
| 638 | extern char *gets (char *__s) __wur __attribute_deprecated__; |
| 639 | #endif |
| 640 | __END_NAMESPACE_STD |
| 641 | |
| 642 | #ifdef __USE_GNU |
| 643 | /* This function does the same as `fgets' but does not lock the stream. |
| 644 | |
| 645 | This function is not part of POSIX and therefore no official |
| 646 | cancellation point. But due to similarity with an POSIX interface |
| 647 | or due to the implementation it is a cancellation point and |
| 648 | therefore not marked with __THROW. */ |
| 649 | extern char *fgets_unlocked (char *__restrict __s, int __n, |
| 650 | FILE *__restrict __stream) __wur; |
| 651 | #endif |
| 652 | |
| 653 | |
| 654 | #ifdef __USE_XOPEN2K8 |
| 655 | /* Read up to (and including) a DELIMITER from STREAM into *LINEPTR |
| 656 | (and null-terminate it). *LINEPTR is a pointer returned from malloc (or |
| 657 | NULL), pointing to *N characters of space. It is realloc'd as |
| 658 | necessary. Returns the number of characters read (not including the |
| 659 | null terminator), or -1 on error or EOF. |
| 660 | |
| 661 | These functions are not part of POSIX and therefore no official |
| 662 | cancellation point. But due to similarity with an POSIX interface |
| 663 | or due to the implementation they are cancellation points and |
| 664 | therefore not marked with __THROW. */ |
| 665 | extern _IO_ssize_t __getdelim (char **__restrict __lineptr, |
| 666 | size_t *__restrict __n, int __delimiter, |
| 667 | FILE *__restrict __stream) __wur; |
| 668 | extern _IO_ssize_t getdelim (char **__restrict __lineptr, |
| 669 | size_t *__restrict __n, int __delimiter, |
| 670 | FILE *__restrict __stream) __wur; |
| 671 | |
| 672 | /* Like `getdelim', but reads up to a newline. |
| 673 | |
| 674 | This function is not part of POSIX and therefore no official |
| 675 | cancellation point. But due to similarity with an POSIX interface |
| 676 | or due to the implementation it is a cancellation point and |
| 677 | therefore not marked with __THROW. */ |
| 678 | extern _IO_ssize_t getline (char **__restrict __lineptr, |
| 679 | size_t *__restrict __n, |
| 680 | FILE *__restrict __stream) __wur; |
| 681 | #endif |
| 682 | |
| 683 | |
| 684 | __BEGIN_NAMESPACE_STD |
| 685 | /* Write a string to STREAM. |
| 686 | |
| 687 | This function is a possible cancellation point and therefore not |
| 688 | marked with __THROW. */ |
| 689 | extern int fputs (const char *__restrict __s, FILE *__restrict __stream); |
| 690 | |
| 691 | /* Write a string, followed by a newline, to stdout. |
| 692 | |
| 693 | This function is a possible cancellation point and therefore not |
| 694 | marked with __THROW. */ |
| 695 | extern int puts (const char *__s); |
| 696 | |
| 697 | |
| 698 | /* Push a character back onto the input buffer of STREAM. |
| 699 | |
| 700 | This function is a possible cancellation point and therefore not |
| 701 | marked with __THROW. */ |
| 702 | extern int ungetc (int __c, FILE *__stream); |
| 703 | |
| 704 | |
| 705 | /* Read chunks of generic data from STREAM. |
| 706 | |
| 707 | This function is a possible cancellation point and therefore not |
| 708 | marked with __THROW. */ |
| 709 | extern size_t fread (void *__restrict __ptr, size_t __size, |
| 710 | size_t __n, FILE *__restrict __stream) __wur; |
| 711 | /* Write chunks of generic data to STREAM. |
| 712 | |
| 713 | This function is a possible cancellation point and therefore not |
| 714 | marked with __THROW. */ |
| 715 | extern size_t fwrite (const void *__restrict __ptr, size_t __size, |
| 716 | size_t __n, FILE *__restrict __s); |
| 717 | __END_NAMESPACE_STD |
| 718 | |
| 719 | #ifdef __USE_GNU |
| 720 | /* This function does the same as `fputs' but does not lock the stream. |
| 721 | |
| 722 | This function is not part of POSIX and therefore no official |
| 723 | cancellation point. But due to similarity with an POSIX interface |
| 724 | or due to the implementation it is a cancellation point and |
| 725 | therefore not marked with __THROW. */ |
| 726 | extern int fputs_unlocked (const char *__restrict __s, |
| 727 | FILE *__restrict __stream); |
| 728 | #endif |
| 729 | |
| 730 | #ifdef __USE_MISC |
| 731 | /* Faster versions when locking is not necessary. |
| 732 | |
| 733 | These functions are not part of POSIX and therefore no official |
| 734 | cancellation point. But due to similarity with an POSIX interface |
| 735 | or due to the implementation they are cancellation points and |
| 736 | therefore not marked with __THROW. */ |
| 737 | extern size_t fread_unlocked (void *__restrict __ptr, size_t __size, |
| 738 | size_t __n, FILE *__restrict __stream) __wur; |
| 739 | extern size_t fwrite_unlocked (const void *__restrict __ptr, size_t __size, |
| 740 | size_t __n, FILE *__restrict __stream); |
| 741 | #endif |
| 742 | |
| 743 | |
| 744 | __BEGIN_NAMESPACE_STD |
| 745 | /* Seek to a certain position on STREAM. |
| 746 | |
| 747 | This function is a possible cancellation point and therefore not |
| 748 | marked with __THROW. */ |
| 749 | extern int fseek (FILE *__stream, long int __off, int __whence); |
| 750 | /* Return the current position of STREAM. |
| 751 | |
| 752 | This function is a possible cancellation point and therefore not |
| 753 | marked with __THROW. */ |
| 754 | extern long int ftell (FILE *__stream) __wur; |
| 755 | /* Rewind to the beginning of STREAM. |
| 756 | |
| 757 | This function is a possible cancellation point and therefore not |
| 758 | marked with __THROW. */ |
| 759 | extern void rewind (FILE *__stream); |
| 760 | __END_NAMESPACE_STD |
| 761 | |
| 762 | /* The Single Unix Specification, Version 2, specifies an alternative, |
| 763 | more adequate interface for the two functions above which deal with |
| 764 | file offset. `long int' is not the right type. These definitions |
| 765 | are originally defined in the Large File Support API. */ |
| 766 | |
| 767 | #if defined __USE_LARGEFILE || defined __USE_XOPEN2K |
| 768 | # ifndef __USE_FILE_OFFSET64 |
| 769 | /* Seek to a certain position on STREAM. |
| 770 | |
| 771 | This function is a possible cancellation point and therefore not |
| 772 | marked with __THROW. */ |
| 773 | extern int fseeko (FILE *__stream, __off_t __off, int __whence); |
| 774 | /* Return the current position of STREAM. |
| 775 | |
| 776 | This function is a possible cancellation point and therefore not |
| 777 | marked with __THROW. */ |
| 778 | extern __off_t ftello (FILE *__stream) __wur; |
| 779 | # else |
| 780 | # ifdef __REDIRECT |
| 781 | extern int __REDIRECT (fseeko, |
| 782 | (FILE *__stream, __off64_t __off, int __whence), |
| 783 | fseeko64); |
| 784 | extern __off64_t __REDIRECT (ftello, (FILE *__stream), ftello64); |
| 785 | # else |
| 786 | # define fseeko fseeko64 |
| 787 | # define ftello ftello64 |
| 788 | # endif |
| 789 | # endif |
| 790 | #endif |
| 791 | |
| 792 | __BEGIN_NAMESPACE_STD |
| 793 | #ifndef __USE_FILE_OFFSET64 |
| 794 | /* Get STREAM's position. |
| 795 | |
| 796 | This function is a possible cancellation point and therefore not |
| 797 | marked with __THROW. */ |
| 798 | extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos); |
| 799 | /* Set STREAM's position. |
| 800 | |
| 801 | This function is a possible cancellation point and therefore not |
| 802 | marked with __THROW. */ |
| 803 | extern int fsetpos (FILE *__stream, const fpos_t *__pos); |
| 804 | #else |
| 805 | # ifdef __REDIRECT |
| 806 | extern int __REDIRECT (fgetpos, (FILE *__restrict __stream, |
| 807 | fpos_t *__restrict __pos), fgetpos64); |
| 808 | extern int __REDIRECT (fsetpos, |
| 809 | (FILE *__stream, const fpos_t *__pos), fsetpos64); |
| 810 | # else |
| 811 | # define fgetpos fgetpos64 |
| 812 | # define fsetpos fsetpos64 |
| 813 | # endif |
| 814 | #endif |
| 815 | __END_NAMESPACE_STD |
| 816 | |
| 817 | #ifdef __USE_LARGEFILE64 |
| 818 | extern int fseeko64 (FILE *__stream, __off64_t __off, int __whence); |
| 819 | extern __off64_t ftello64 (FILE *__stream) __wur; |
| 820 | extern int fgetpos64 (FILE *__restrict __stream, fpos64_t *__restrict __pos); |
| 821 | extern int fsetpos64 (FILE *__stream, const fpos64_t *__pos); |
| 822 | #endif |
| 823 | |
| 824 | __BEGIN_NAMESPACE_STD |
| 825 | /* Clear the error and EOF indicators for STREAM. */ |
| 826 | extern void clearerr (FILE *__stream) __THROW; |
| 827 | /* Return the EOF indicator for STREAM. */ |
| 828 | extern int feof (FILE *__stream) __THROW __wur; |
| 829 | /* Return the error indicator for STREAM. */ |
| 830 | extern int ferror (FILE *__stream) __THROW __wur; |
| 831 | __END_NAMESPACE_STD |
| 832 | |
| 833 | #ifdef __USE_MISC |
| 834 | /* Faster versions when locking is not required. */ |
| 835 | extern void clearerr_unlocked (FILE *__stream) __THROW; |
| 836 | extern int feof_unlocked (FILE *__stream) __THROW __wur; |
| 837 | extern int ferror_unlocked (FILE *__stream) __THROW __wur; |
| 838 | #endif |
| 839 | |
| 840 | |
| 841 | __BEGIN_NAMESPACE_STD |
| 842 | /* Print a message describing the meaning of the value of errno. |
| 843 | |
| 844 | This function is a possible cancellation point and therefore not |
| 845 | marked with __THROW. */ |
| 846 | extern void perror (const char *__s); |
| 847 | __END_NAMESPACE_STD |
| 848 | |
| 849 | /* Provide the declarations for `sys_errlist' and `sys_nerr' if they |
| 850 | are available on this system. Even if available, these variables |
| 851 | should not be used directly. The `strerror' function provides |
| 852 | all the necessary functionality. */ |
| 853 | #include <bits/sys_errlist.h> |
| 854 | |
| 855 | |
| 856 | #ifdef __USE_POSIX |
| 857 | /* Return the system file descriptor for STREAM. */ |
| 858 | extern int fileno (FILE *__stream) __THROW __wur; |
| 859 | #endif /* Use POSIX. */ |
| 860 | |
| 861 | #ifdef __USE_MISC |
| 862 | /* Faster version when locking is not required. */ |
| 863 | extern int fileno_unlocked (FILE *__stream) __THROW __wur; |
| 864 | #endif |
| 865 | |
| 866 | |
| 867 | #ifdef __USE_POSIX2 |
| 868 | /* Create a new stream connected to a pipe running the given command. |
| 869 | |
| 870 | This function is a possible cancellation point and therefore not |
| 871 | marked with __THROW. */ |
| 872 | extern FILE *popen (const char *__command, const char *__modes) __wur; |
| 873 | |
| 874 | /* Close a stream opened by popen and return the status of its child. |
| 875 | |
| 876 | This function is a possible cancellation point and therefore not |
| 877 | marked with __THROW. */ |
| 878 | extern int pclose (FILE *__stream); |
| 879 | #endif |
| 880 | |
| 881 | |
| 882 | #ifdef __USE_POSIX |
| 883 | /* Return the name of the controlling terminal. */ |
| 884 | extern char *ctermid (char *__s) __THROW; |
| 885 | #endif /* Use POSIX. */ |
| 886 | |
| 887 | |
| 888 | #ifdef __USE_XOPEN |
| 889 | /* Return the name of the current user. */ |
| 890 | extern char *cuserid (char *__s); |
| 891 | #endif /* Use X/Open, but not issue 6. */ |
| 892 | |
| 893 | |
| 894 | #ifdef __USE_GNU |
| 895 | struct obstack; /* See <obstack.h>. */ |
| 896 | |
| 897 | /* Write formatted output to an obstack. */ |
| 898 | extern int obstack_printf (struct obstack *__restrict __obstack, |
| 899 | const char *__restrict __format, ...) |
| 900 | __THROWNL __attribute__ ((__format__ (__printf__, 2, 3))); |
| 901 | extern int obstack_vprintf (struct obstack *__restrict __obstack, |
| 902 | const char *__restrict __format, |
| 903 | _G_va_list __args) |
| 904 | __THROWNL __attribute__ ((__format__ (__printf__, 2, 0))); |
| 905 | #endif /* Use GNU. */ |
| 906 | |
| 907 | |
| 908 | #ifdef __USE_POSIX |
| 909 | /* These are defined in POSIX.1:1996. */ |
| 910 | |
| 911 | /* Acquire ownership of STREAM. */ |
| 912 | extern void flockfile (FILE *__stream) __THROW; |
| 913 | |
| 914 | /* Try to acquire ownership of STREAM but do not block if it is not |
| 915 | possible. */ |
| 916 | extern int ftrylockfile (FILE *__stream) __THROW __wur; |
| 917 | |
| 918 | /* Relinquish the ownership granted for STREAM. */ |
| 919 | extern void funlockfile (FILE *__stream) __THROW; |
| 920 | #endif /* POSIX */ |
| 921 | |
| 922 | #if defined __USE_XOPEN && !defined __USE_XOPEN2K && !defined __USE_GNU |
| 923 | /* The X/Open standard requires some functions and variables to be |
| 924 | declared here which do not belong into this header. But we have to |
| 925 | follow. In GNU mode we don't do this nonsense. */ |
| 926 | # define __need_getopt |
| 927 | # include <getopt.h> |
| 928 | #endif /* X/Open, but not issue 6 and not for GNU. */ |
| 929 | |
| 930 | /* If we are compiling with optimizing read this file. It contains |
| 931 | several optimizing inline functions and macros. */ |
| 932 | #ifdef __USE_EXTERN_INLINES |
| 933 | # include <bits/stdio.h> |
| 934 | #endif |
| 935 | #if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function |
| 936 | # include <bits/stdio2.h> |
| 937 | #endif |
| 938 | #ifdef __LDBL_COMPAT |
| 939 | # include <bits/stdio-ldbl.h> |
| 940 | #endif |
| 941 | |
| 942 | __END_DECLS |
| 943 | |
| 944 | #endif /* <stdio.h> included. */ |
| 945 | |
| 946 | #endif /* !_STDIO_H */ |