1 /* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
20 * ISO C Standard: 4.9 INPUT/OUTPUT <stdio.h>
25 #if !defined(__need_FILE)
35 #define __need___va_list
37 #ifndef __GNUC_VA_LIST
38 #define __gnuc_va_list __ptr_t
41 #include <bits/types.h>
42 #endif /* Don't need FILE. */
46 #ifndef __FILE_defined
48 /* The opaque type of streams. */
49 typedef struct __stdio_file FILE;
51 #define __FILE_defined 1
52 #endif /* FILE not defined. */
57 /* The type of the second argument to `fgetpos' and `fsetpos'. */
58 typedef __off_t fpos_t;
60 /* The mode of I/O, as given in the MODE argument to fopen, etc. */
63 unsigned int __read:1; /* Open for reading. */
64 unsigned int __write:1; /* Open for writing. */
65 unsigned int __append:1; /* Open for appending. */
66 unsigned int __binary:1; /* Opened binary. */
67 unsigned int __create:1; /* Create the file. */
68 unsigned int __exclusive:1; /* Error if it already exists. */
69 unsigned int __truncate:1; /* Truncate the file on opening. */
73 /* Functions to do I/O and file management for a stream. */
75 /* Read NBYTES bytes from COOKIE into a buffer pointed to by BUF.
76 Return number of bytes read. */
77 typedef __ssize_t __io_read_fn __P ((__ptr_t __cookie, char *__buf,
80 /* Write N bytes pointed to by BUF to COOKIE. Write all N bytes
81 unless there is an error. Return number of bytes written, or -1 if
82 there is an error without writing anything. If the file has been
83 opened for append (__mode.__append set), then set the file pointer
84 to the end of the file and then do the write; if not, just write at
85 the current file pointer. */
86 typedef __ssize_t __io_write_fn __P ((__ptr_t __cookie, __const char *__buf,
89 /* Move COOKIE's file position to *POS bytes from the
90 beginning of the file (if W is SEEK_SET),
91 the current position (if W is SEEK_CUR),
92 or the end of the file (if W is SEEK_END).
93 Set *POS to the new file position.
94 Returns zero if successful, nonzero if not. */
95 typedef int __io_seek_fn __P ((__ptr_t __cookie, fpos_t *__pos, int __w));
98 typedef int __io_close_fn __P ((__ptr_t __cookie));
100 /* Return the file descriptor associated with COOKIE,
101 or -1 on error. There need not be any associated file descriptor. */
102 typedef int __io_fileno_fn __P ((__ptr_t __cookie));
105 /* User-visible names for the above. */
106 typedef __io_read_fn cookie_read_function_t;
107 typedef __io_write_fn cookie_write_function_t;
108 typedef __io_seek_fn cookie_seek_function_t;
109 typedef __io_close_fn cookie_close_function_t;
110 typedef __io_fileno_fn cookie_fileno_function_t;
113 /* Low level interface, independent of FILE representation. */
114 #if defined __USE_GNU && !defined _LIBC
115 /* Define the user-visible type, with user-friendly member names. */
118 __io_read_fn *read; /* Read bytes. */
119 __io_write_fn *write; /* Write bytes. */
120 __io_seek_fn *seek; /* Seek/tell file position. */
121 __io_close_fn *close; /* Close file. */
122 __io_fileno_fn *fileno; /* Return file descriptor. */
123 } cookie_io_functions_t;
124 /* This name is still used in the prototypes in this file. */
125 typedef cookie_io_functions_t __io_functions;
127 /* Stick to ANSI-safe names. */
130 __io_read_fn *__read; /* Read bytes. */
131 __io_write_fn *__write; /* Write bytes. */
132 __io_seek_fn *__seek; /* Seek/tell file position. */
133 __io_close_fn *__close; /* Close file. */
134 __io_fileno_fn *__fileno; /* Return file descriptor. */
138 /* Higher level interface, dependent on FILE representation. */
141 /* Make room in the input buffer. */
142 int (*__input) __P ((FILE *__stream));
143 /* Make room in the output buffer. */
144 void (*__output) __P ((FILE *__stream, int __c));
147 extern __const __io_functions __default_io_functions;
148 extern __const __room_functions __default_room_functions;
151 /* Default close function. */
152 extern __io_close_fn __stdio_close;
153 /* Open FILE with mode M, store cookie in *COOKIEPTR. */
154 extern int __stdio_open __P ((__const char *__file, __io_mode __m,
155 __ptr_t *__cookieptr));
156 /* Put out an error message for when stdio needs to die. */
157 extern void __stdio_errmsg __P ((__const char *__msg, size_t __len));
158 /* Generate a unique file name (and possibly open it with mode "w+b"). */
159 extern char *__stdio_gen_tempname __P ((char *__buf, size_t __bufsize,
164 FILE **__streamptr));
167 /* Print out MESSAGE on the error output and abort. */
168 extern void __libc_fatal __P ((__const char *__message))
169 __attribute__ ((__noreturn__));
172 /* For thread safe I/O functions we need a lock in each stream. We
173 keep the type opaque here. */
176 /* The FILE structure. */
179 /* Magic number for validation. Must be negative in open streams
180 for the glue to Unix stdio getc/putc to work.
181 NOTE: stdio/glue.c has special knowledge of these first four members. */
183 #define _IOMAGIC ((int) 0xfedabeeb) /* Magic number to fill `__magic'. */
184 #define _GLUEMAGIC ((int) 0xfeedbabe) /* Magic for glued Unix streams. */
186 char *__bufp; /* Pointer into the buffer. */
187 char *__get_limit; /* Reading limit. */
188 char *__put_limit; /* Writing limit. */
190 char *__buffer; /* Base of buffer. */
191 size_t __bufsize; /* Size of the buffer. */
192 __ptr_t __cookie; /* Magic cookie. */
193 __io_mode __mode; /* File access mode. */
194 __io_functions __io_funcs; /* I/O functions. */
195 __room_functions __room_funcs;/* I/O buffer room functions. */
196 fpos_t __offset; /* Current file position. */
197 fpos_t __target; /* Target file position. */
198 FILE *__next; /* Next FILE in the linked list. */
199 char *__pushback_bufp; /* Old bufp if char pushed back. */
200 unsigned char __pushback; /* Pushed-back character. */
201 unsigned int __pushed_back:1; /* A char has been pushed back. */
202 unsigned int __eof:1; /* End of file encountered. */
203 unsigned int __error:1; /* Error encountered. */
204 unsigned int __userbuf:1; /* Buffer from user (should not be freed). */
205 unsigned int __linebuf:1; /* Flush on newline. */
206 unsigned int __linebuf_active:1; /* put_limit is not really in use. */
207 unsigned int __seen:1; /* This stream has been seen. */
208 unsigned int __ispipe:1; /* Nonzero if opened by popen. */
209 struct __stdio_lock *__lock; /* Pointer to associated lock. */
213 /* All macros used internally by other macros here and by stdio functions begin
214 with `__'. All of these may evaluate their arguments more than once. */
217 /* Nonzero if STREAM is a valid stream.
218 STREAM must be a modifiable lvalue (wow, I got to use that term).
219 See stdio/glue.c for what the confusing bit is about. */
220 #define __validfp(stream) \
222 ({ if (stream->__magic == _GLUEMAGIC) \
223 stream = *((struct { int __magic; FILE **__p; } *) stream)->__p; \
224 stream->__magic == _IOMAGIC; }))
226 /* Clear the error and EOF indicators of STREAM. */
227 #define __clearerr(stream) ((stream)->__error = (stream)->__eof = 0)
229 /* Nuke STREAM, making it unusable but available for reuse. */
230 extern void __invalidate __P ((FILE *__stream));
232 /* Make sure STREAM->__offset and STREAM->__target are initialized.
233 Returns 0 if successful, or EOF on
234 error (but doesn't set STREAM->__error). */
235 extern int __stdio_check_offset __P ((FILE *__stream));
238 /* The possibilities for the third argument to `setvbuf'. */
239 #define _IOFBF 0x1 /* Full buffering. */
240 #define _IOLBF 0x2 /* Line buffering. */
241 #define _IONBF 0x4 /* No buffering. */
244 /* Default buffer size. */
248 /* End of file character.
249 Some things throughout the library rely on this being -1. */
253 /* The possibilities for the third argument to `fseek'.
254 These values should not be changed. */
255 #define SEEK_SET 0 /* Seek from beginning of file. */
256 #define SEEK_CUR 1 /* Seek from current position. */
257 #define SEEK_END 2 /* Seek from end of file. */
261 /* Default path prefix for `tempnam' and `tmpnam'. */
262 #define P_tmpdir "/usr/tmp"
267 L_tmpnam How long an array of chars must be to be passed to `tmpnam'.
268 TMP_MAX The minimum number of unique filenames generated by tmpnam
269 (and tempnam when it uses tmpnam's name space),
270 or tempnam (the two are separate).
271 L_ctermid How long an array to pass to `ctermid'.
272 L_cuserid How long an array to pass to `cuserid'.
273 FOPEN_MAX Minimum number of files that can be open at once.
274 FILENAME_MAX Maximum length of a filename. */
275 #include <bits/stdio_lim.h>
278 /* All the known streams are in a linked list
279 linked by the `next' field of the FILE structure. */
280 extern FILE *__stdio_head; /* Head of the list. */
282 /* Standard streams. */
283 extern FILE *stdin, *stdout, *stderr;
284 #ifdef __STRICT_ANSI__
285 /* ANSI says these are macros; satisfy pedants. */
287 #define stdout stdout
288 #define stderr stderr
292 /* Remove file FILENAME. */
293 extern int remove __P ((__const char *__filename));
294 /* Rename file OLD to NEW. */
295 extern int rename __P ((__const char *__old, __const char *__new));
298 /* Create a temporary file and open it read/write. */
299 extern FILE *tmpfile __P ((void));
300 /* Generate a temporary filename. */
301 extern char *tmpnam __P ((char *__s));
303 #ifdef __USE_REENTRANT
304 /* This is the reentrant variant of `tmpnam'. The only difference is
305 that it does not allow S to be NULL. */
306 extern char *tmpnam_r __P ((char *__s));
310 #if defined __USE_SVID || defined __USE_XOPEN
311 /* Generate a unique temporary filename using up to five characters of PFX
312 if it is not NULL. The directory to put this file in is searched for
313 as follows: First the environment variable "TMPDIR" is checked.
314 If it contains the name of a writable directory, that directory is used.
315 If not and if DIR is not NULL, that value is checked. If that fails,
316 P_tmpdir is tried and finally "/tmp". The storage for the filename
317 is allocated by `malloc'. */
318 extern char *tempnam __P ((__const char *__dir, __const char *__pfx));
322 /* This performs actual output when necessary, flushing
323 STREAM's buffer and optionally writing another character. */
324 extern int __flshfp __P ((FILE *__stream, int __c));
328 extern int fclose __P ((FILE *__stream));
329 /* Flush STREAM, or all streams if STREAM is NULL. */
330 extern int fflush __P ((FILE *__stream));
333 /* Close all streams. */
334 extern int __fcloseall __P ((void));
335 extern int fcloseall __P ((void));
339 /* Open a file and create a new stream for it. */
340 extern FILE *fopen __P ((__const char *__filename, __const char *__modes));
341 /* Open a file, replacing an existing stream with it. */
342 extern FILE *freopen __P ((__const char *__restrict __filename,
343 __const char *__restrict __modes,
344 FILE *__restrict __stream));
346 /* Return a new, zeroed, stream.
347 You must set its cookie and io_mode.
348 The first operation will give it a buffer unless you do.
349 It will also give it the default functions unless you set the `seen' flag.
350 The offset is set to -1, meaning it will be determined by doing a
351 stationary seek. You can set it to avoid the initial tell call.
352 The target is set to -1, meaning it will be set to the offset
353 before the target is needed.
354 Returns NULL if a stream can't be created. */
355 extern FILE *__newstream __P ((void));
358 /* Create a new stream that refers to an existing system file descriptor. */
359 extern FILE *fdopen __P ((int __fd, __const char *__modes));
363 /* Create a new stream that refers to the given magic cookie,
364 and uses the given functions for input and output. */
365 extern FILE *fopencookie __P ((__ptr_t __magic_cookie, __const char *__modes,
366 __io_functions __io_funcs));
368 /* Create a new stream that refers to a memory buffer. */
369 extern FILE *fmemopen __P ((__ptr_t __s, size_t __len, __const char *__modes));
371 /* Open a stream that writes into a malloc'd buffer that is expanded as
372 necessary. *BUFLOC and *SIZELOC are updated with the buffer's location
373 and the number of characters written on fflush or fclose. */
374 extern FILE *open_memstream __P ((char **__bufloc, size_t *__sizeloc));
378 /* If BUF is NULL, make STREAM unbuffered.
379 Else make it use buffer BUF, of size BUFSIZ. */
380 extern void setbuf __P ((FILE *__restrict __stream, char *__restrict __buf));
381 /* Make STREAM use buffering mode MODE.
382 If BUF is not NULL, use N bytes of it for buffering;
383 else allocate an internal buffer N bytes long. */
384 extern int setvbuf __P ((FILE *__restrict __stream, char *__restrict __buf,
385 int __modes, size_t __n));
388 /* If BUF is NULL, make STREAM unbuffered.
389 Else make it use SIZE bytes of BUF for buffering. */
390 extern void setbuffer __P ((FILE *__stream, char *__buf, size_t __size));
392 /* Make STREAM line-buffered. */
393 extern void setlinebuf __P ((FILE *__stream));
397 /* Write formatted output to STREAM. */
398 extern int fprintf __P ((FILE *__restrict __stream,
399 __const char *__restrict __format, ...));
400 /* Write formatted output to stdout. */
401 extern int printf __P ((__const char *__restrict __format, ...));
402 /* Write formatted output to S. */
403 extern int sprintf __P ((char *__restrict __s,
404 __const char *__restrict __format, ...));
406 /* Write formatted output to S from argument list ARG. */
407 extern int vfprintf __P ((FILE *__restrict __s,
408 __const char *__restrict __format,
409 __gnuc_va_list __arg));
410 /* Write formatted output to stdout from argument list ARG. */
411 extern int vprintf __P ((__const char *__restrict __format,
412 __gnuc_va_list __arg));
413 /* Write formatted output to S from argument list ARG. */
414 extern int vsprintf __P ((char *__restrict __s,
415 __const char *__restrict __format,
416 __gnuc_va_list __arg));
420 vprintf (const char *__restrict __fmt, __gnuc_va_list __arg)
422 return vfprintf (stdout, __fmt, __arg);
424 #endif /* Optimizing. */
426 #if defined __USE_BSD || defined __USE_ISOC9X
427 /* Maximum chars of output to write in MAXLEN. */
428 extern int __snprintf __P ((char *__s, size_t __maxlen,
429 __const char *__format, ...))
430 __attribute__ ((__format__ (__printf__, 3, 4)));
431 extern int snprintf __P ((char *__s, size_t __maxlen,
432 __const char *__format, ...))
433 __attribute__ ((__format__ (__printf__, 3, 4)));
435 extern int __vsnprintf __P ((char *__s, size_t __maxlen,
436 __const char *__format, __gnuc_va_list __arg))
437 __attribute__ ((__format__ (__printf__, 3, 0)));
438 extern int vsnprintf __P ((char *__s, size_t __maxlen,
439 __const char *__format, __gnuc_va_list __arg))
440 __attribute__ ((__format__ (__printf__, 3, 0)));
444 /* Write formatted output to a string dynamically allocated with `malloc'.
445 Store the address of the string in *PTR. */
446 extern int vasprintf __P ((char **__ptr, __const char *__f,
447 __gnuc_va_list __arg))
448 __attribute__ ((__format__ (__printf__, 2, 0)));
449 extern int asprintf __P ((char **__ptr, __const char *__fmt, ...))
450 __attribute__ ((__format__ (__printf__, 2, 0)));
452 /* Write formatted output to a file descriptor. */
453 extern int vdprintf __P ((int __fd, __const char *__fmt,
454 __gnuc_va_list __arg))
455 __attribute__ ((__format__ (__printf__, 2, 0)));
456 extern int dprintf __P ((int __fd, __const char *__fmt, ...))
457 __attribute__ ((__format__ (__printf__, 2, 0)));
461 /* Read formatted input from STREAM. */
462 extern int fscanf __P ((FILE *__restrict __stream,
463 __const char *__restrict __format, ...));
464 /* Read formatted input from stdin. */
465 extern int scanf __P ((__const char *__restrict __format, ...));
466 /* Read formatted input from S. */
467 extern int sscanf __P ((__const char *__restrict __s,
468 __const char *__restrict __format, ...));
471 /* Read formatted input from S into argument list ARG. */
472 extern int __vfscanf __P ((FILE *__s, __const char *__format,
473 __gnuc_va_list __arg));
474 extern int vfscanf __P ((FILE *__s, __const char *__format,
475 __gnuc_va_list __arg));
477 /* Read formatted input from stdin into argument list ARG. */
478 extern int __vscanf __P ((__const char *__format, __gnuc_va_list __arg));
479 extern int vscanf __P ((__const char *__format, __gnuc_va_list __arg));
481 /* Read formatted input from S into argument list ARG. */
482 extern int __vsscanf __P ((__const char *__s, __const char *__format,
483 __gnuc_va_list __arg));
484 extern int vsscanf __P ((__const char *__s, __const char *__format,
485 __gnuc_va_list __arg));
490 vfscanf (FILE *__s, const char *__fmt, __gnuc_va_list __arg)
492 return __vfscanf (__s, __fmt, __arg);
495 vscanf (const char *__fmt, __gnuc_va_list __arg)
497 return __vfscanf (stdin, __fmt, __arg);
500 vsscanf (const char *__s, const char *__fmt, __gnuc_va_list __arg)
502 return __vsscanf (__s, __fmt, __arg);
504 #endif /* Optimizing. */
505 #endif /* Use GNU. */
508 /* This does actual reading when necessary, filling STREAM's
509 buffer and returning the first character in it. */
510 extern int __fillbf __P ((FILE *__stream));
513 /* Read a character from STREAM. */
514 extern int fgetc __P ((FILE *__stream));
515 extern int getc __P ((FILE *__stream));
517 /* Read a character from stdin. */
518 extern int getchar __P ((void));
520 /* The C standard explicitly says this can
521 re-evaluate its argument, so it does. */
522 #define __getc(stream) \
523 ((stream)->__bufp < (stream)->__get_limit ? \
524 (int) ((unsigned char) *(stream)->__bufp++) : __fillbf(stream))
526 /* The C standard explicitly says this is a macro,
527 so we always do the optimization for it. */
528 #define getc(stream) __getc(stream)
534 return __getc (stdin);
536 #endif /* Optimizing. */
539 /* Write a character to STREAM. */
540 extern int fputc __P ((int __c, FILE *__stream));
541 extern int putc __P ((int __c, FILE *__stream));
543 /* Write a character to stdout. */
544 extern int putchar __P ((int __c));
547 /* The C standard explicitly says this can
548 re-evaluate its arguments, so it does. */
549 #define __putc(c, stream) \
550 ((stream)->__bufp < (stream)->__put_limit ? \
551 (int) (unsigned char) (*(stream)->__bufp++ = (unsigned char) (c)) : \
552 __flshfp ((stream), (unsigned char) (c)))
554 /* The C standard explicitly says this can be a macro,
555 so we always do the optimization for it. */
556 #define putc(c, stream) __putc ((c), (stream))
562 return __putc (__c, stdout);
567 #if defined __USE_SVID || defined __USE_MISC
568 /* Get a word (int) from STREAM. */
569 extern int getw __P ((FILE *__stream));
571 /* Write a word (int) to STREAM. */
572 extern int putw __P ((int __w, FILE *__stream));
576 /* Get a newline-terminated string of finite length from STREAM. */
577 extern char *fgets __P ((char *__restrict __s, int __n,
578 FILE *__restrict __stream));
580 /* Get a newline-terminated string from stdin, removing the newline.
581 DO NOT USE THIS FUNCTION!! There is no limit on how much it will read. */
582 extern char *gets __P ((char *__s));
586 #include <sys/types.h>
588 /* Read up to (and including) a DELIMITER from STREAM into *LINEPTR
589 (and null-terminate it). *LINEPTR is a pointer returned from malloc (or
590 NULL), pointing to *N characters of space. It is realloc'd as
591 necessary. Returns the number of characters read (not including the
592 null terminator), or -1 on error or EOF. */
593 ssize_t __getdelim __P ((char **__lineptr, size_t *__n,
594 int __delimiter, FILE *__stream));
595 ssize_t getdelim __P ((char **__lineptr, size_t *__n,
596 int __delimiter, FILE *__stream));
598 /* Like `getdelim', but reads up to a newline. */
599 ssize_t __getline __P ((char **__lineptr, size_t *__n, FILE *__stream));
600 ssize_t getline __P ((char **__lineptr, size_t *__n, FILE *__stream));
603 extern __inline ssize_t
604 getline (char **__lineptr, size_t *__n, FILE *__stream)
606 return __getdelim (__lineptr, __n, '\n', __stream);
608 #endif /* Optimizing. */
612 /* Write a string to STREAM. */
613 extern int fputs __P ((__const char *__restrict __s,
614 FILE *__restrict __stream));
615 /* Write a string, followed by a newline, to stdout. */
616 extern int puts __P ((__const char *__s));
619 /* Push a character back onto the input buffer of STREAM. */
620 extern int ungetc __P ((int __c, FILE *__stream));
623 /* Read chunks of generic data from STREAM. */
624 extern size_t fread __P ((__ptr_t __restrict __ptr, size_t __size,
625 size_t __n, FILE *__restrict __stream));
626 /* Write chunks of generic data to STREAM. */
627 extern size_t fwrite __P ((__const __ptr_t __restrict __ptr, size_t __size,
628 size_t __n, FILE *__restrict __s));
631 /* Seek to a certain position on STREAM. */
632 extern int fseek __P ((FILE *__stream, long int __off, int __whence));
633 /* Return the current position of STREAM. */
634 extern long int ftell __P ((FILE *__stream));
635 /* Rewind to the beginning of STREAM. */
636 extern void rewind __P ((FILE *__stream));
638 /* Get STREAM's position. */
639 extern int fgetpos __P ((FILE *__restrict __stream, fpos_t *__restrict __pos));
640 /* Set STREAM's position. */
641 extern int fsetpos __P ((FILE *__stream, __const fpos_t *__pos));
644 /* Clear the error and EOF indicators for STREAM. */
645 extern void clearerr __P ((FILE *__stream));
646 /* Return the EOF indicator for STREAM. */
647 extern int feof __P ((FILE *__stream));
648 /* Return the error indicator for STREAM. */
649 extern int ferror __P ((FILE *__stream));
652 #define feof(stream) ((stream)->__eof != 0)
653 #define ferror(stream) ((stream)->__error != 0)
654 #endif /* Optimizing. */
657 /* Print a message describing the meaning of the value of errno. */
658 extern void perror __P ((__const char *__s));
662 extern const char *const sys_errlist[];
665 extern int _sys_nerr;
666 extern const char *const _sys_errlist[];
671 /* Return the system file descriptor for STREAM. */
672 extern int fileno __P ((FILE *__stream));
673 #endif /* Use POSIX. */
676 #if (defined __USE_POSIX2 || defined __USE_SVID || defined __USE_BSD || \
678 /* Create a new stream connected to a pipe running the given command. */
679 extern FILE *popen __P ((__const char *__command, __const char *__modes));
681 /* Close a stream opened by popen and return the status of its child. */
682 extern int pclose __P ((FILE *__stream));
687 /* Return the name of the controlling terminal. */
688 extern char *ctermid __P ((char *__s));
693 /* Return the name of the current user. */
694 extern char *cuserid __P ((char *__s));
699 struct obstack; /* See <obstack.h>. */
701 /* Open a stream that writes to OBSTACK. */
702 extern FILE *open_obstack_stream __P ((struct obstack *__obstack));
704 /* Write formatted output to an obstack. */
705 extern int obstack_printf __P ((struct obstack *__obstack,
706 __const char *__format, ...));
707 extern int obstack_vprintf __P ((struct obstack *__obstack,
708 __const char *__format,
709 __gnuc_va_list __args));
715 #endif /* <stdio.h> included. */