stdio.h
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上传日期:2009-04-28
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- /* Define ISO C stdio on top of C++ iostreams.
- Copyright (C) 1991,1994-2002,2003,2004 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- /*
- * ISO C99 Standard: 7.19 Input/output <stdio.h>
- */
- #ifndef _STDIO_H
- #if !defined __need_FILE && !defined __need___FILE
- # define _STDIO_H 1
- # include <features.h>
- __BEGIN_DECLS
- # define __need_size_t
- # define __need_NULL
- # include <stddef.h>
- # include <bits/types.h>
- # define __need_FILE
- # define __need___FILE
- #endif /* Don't need FILE. */
- #if !defined __FILE_defined && defined __need_FILE
- __BEGIN_NAMESPACE_STD
- /* The opaque type of streams. This is the definition used elsewhere. */
- typedef struct _IO_FILE FILE;
- __END_NAMESPACE_STD
- #if defined __USE_LARGEFILE64 || defined __USE_SVID || defined __USE_POSIX
- || defined __USE_BSD || defined __USE_ISOC99 || defined __USE_XOPEN
- || defined __USE_POSIX2
- __USING_NAMESPACE_STD(FILE)
- #endif
- # define __FILE_defined 1
- #endif /* FILE not defined. */
- #undef __need_FILE
- #if !defined ____FILE_defined && defined __need___FILE
- /* The opaque type of streams. This is the definition used elsewhere. */
- typedef struct _IO_FILE __FILE;
- # define ____FILE_defined 1
- #endif /* __FILE not defined. */
- #undef __need___FILE
- #ifdef _STDIO_H
- #define _STDIO_USES_IOSTREAM
- #include <libio.h>
- #ifdef __USE_XOPEN
- # ifdef __GNUC__
- # ifndef _VA_LIST_DEFINED
- typedef _G_va_list va_list;
- # define _VA_LIST_DEFINED
- # endif
- # else
- # include <stdarg.h>
- # endif
- #endif
- /* The type of the second argument to `fgetpos' and `fsetpos'. */
- __BEGIN_NAMESPACE_STD
- #ifndef __USE_FILE_OFFSET64
- typedef _G_fpos_t fpos_t;
- #else
- typedef _G_fpos64_t fpos_t;
- #endif
- __END_NAMESPACE_STD
- #ifdef __USE_LARGEFILE64
- typedef _G_fpos64_t fpos64_t;
- #endif
- /* The possibilities for the third argument to `setvbuf'. */
- #define _IOFBF 0 /* Fully buffered. */
- #define _IOLBF 1 /* Line buffered. */
- #define _IONBF 2 /* No buffering. */
- /* Default buffer size. */
- #ifndef BUFSIZ
- # define BUFSIZ _IO_BUFSIZ
- #endif
- /* End of file character.
- Some things throughout the library rely on this being -1. */
- #ifndef EOF
- # define EOF (-1)
- #endif
- /* The possibilities for the third argument to `fseek'.
- These values should not be changed. */
- #define SEEK_SET 0 /* Seek from beginning of file. */
- #define SEEK_CUR 1 /* Seek from current position. */
- #define SEEK_END 2 /* Seek from end of file. */
- #if defined __USE_SVID || defined __USE_XOPEN
- /* Default path prefix for `tempnam' and `tmpnam'. */
- # define P_tmpdir "/tmp"
- #endif
- /* Get the values:
- L_tmpnam How long an array of chars must be to be passed to `tmpnam'.
- TMP_MAX The minimum number of unique filenames generated by tmpnam
- (and tempnam when it uses tmpnam's name space),
- or tempnam (the two are separate).
- L_ctermid How long an array to pass to `ctermid'.
- L_cuserid How long an array to pass to `cuserid'.
- FOPEN_MAX Minimum number of files that can be open at once.
- FILENAME_MAX Maximum length of a filename. */
- #include <bits/stdio_lim.h>
- /* Standard streams. */
- extern struct _IO_FILE *stdin; /* Standard input stream. */
- extern struct _IO_FILE *stdout; /* Standard output stream. */
- extern struct _IO_FILE *stderr; /* Standard error output stream. */
- /* C89/C99 say they're macros. Make them happy. */
- #define stdin stdin
- #define stdout stdout
- #define stderr stderr
- __BEGIN_NAMESPACE_STD
- /* Remove file FILENAME. */
- extern int remove (__const char *__filename) __THROW;
- /* Rename file OLD to NEW. */
- extern int rename (__const char *__old, __const char *__new) __THROW;
- __END_NAMESPACE_STD
- __BEGIN_NAMESPACE_STD
- /* Create a temporary file and open it read/write.
- This function is a possible cancellation points and therefore not
- marked with __THROW. */
- #ifndef __USE_FILE_OFFSET64
- extern FILE *tmpfile (void);
- #else
- # ifdef __REDIRECT
- extern FILE *__REDIRECT (tmpfile, (void), tmpfile64);
- # else
- # define tmpfile tmpfile64
- # endif
- #endif
- #ifdef __USE_LARGEFILE64
- extern FILE *tmpfile64 (void);
- #endif
- /* Generate a temporary filename. */
- extern char *tmpnam (char *__s) __THROW;
- __END_NAMESPACE_STD
- #ifdef __USE_MISC
- /* This is the reentrant variant of `tmpnam'. The only difference is
- that it does not allow S to be NULL. */
- extern char *tmpnam_r (char *__s) __THROW;
- #endif
- #if defined __USE_SVID || defined __USE_XOPEN
- /* Generate a unique temporary filename using up to five characters of PFX
- if it is not NULL. The directory to put this file in is searched for
- as follows: First the environment variable "TMPDIR" is checked.
- If it contains the name of a writable directory, that directory is used.
- If not and if DIR is not NULL, that value is checked. If that fails,
- P_tmpdir is tried and finally "/tmp". The storage for the filename
- is allocated by `malloc'. */
- extern char *tempnam (__const char *__dir, __const char *__pfx)
- __THROW __attribute_malloc__;
- #endif
- __BEGIN_NAMESPACE_STD
- /* Close STREAM.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int fclose (FILE *__stream);
- /* Flush STREAM, or all streams if STREAM is NULL.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int fflush (FILE *__stream);
- __END_NAMESPACE_STD
- #ifdef __USE_MISC
- /* Faster versions when locking is not required.
- This function is not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation it is a cancellation point and
- therefore not marked with __THROW. */
- extern int fflush_unlocked (FILE *__stream);
- #endif
- #ifdef __USE_GNU
- /* Close all streams.
- This function is not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation it is a cancellation point and
- therefore not marked with __THROW. */
- extern int fcloseall (void);
- #endif
- __BEGIN_NAMESPACE_STD
- #ifndef __USE_FILE_OFFSET64
- /* Open a file and create a new stream for it.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern FILE *fopen (__const char *__restrict __filename,
- __const char *__restrict __modes);
- /* Open a file, replacing an existing stream with it.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern FILE *freopen (__const char *__restrict __filename,
- __const char *__restrict __modes,
- FILE *__restrict __stream);
- #else
- # ifdef __REDIRECT
- extern FILE *__REDIRECT (fopen, (__const char *__restrict __filename,
- __const char *__restrict __modes), fopen64);
- extern FILE *__REDIRECT (freopen, (__const char *__restrict __filename,
- __const char *__restrict __modes,
- FILE *__restrict __stream), freopen64);
- # else
- # define fopen fopen64
- # define freopen freopen64
- # endif
- #endif
- __END_NAMESPACE_STD
- #ifdef __USE_LARGEFILE64
- extern FILE *fopen64 (__const char *__restrict __filename,
- __const char *__restrict __modes);
- extern FILE *freopen64 (__const char *__restrict __filename,
- __const char *__restrict __modes,
- FILE *__restrict __stream);
- #endif
- #ifdef __USE_POSIX
- /* Create a new stream that refers to an existing system file descriptor. */
- extern FILE *fdopen (int __fd, __const char *__modes) __THROW;
- #endif
- #ifdef __USE_GNU
- /* Create a new stream that refers to the given magic cookie,
- and uses the given functions for input and output. */
- extern FILE *fopencookie (void *__restrict __magic_cookie,
- __const char *__restrict __modes,
- _IO_cookie_io_functions_t __io_funcs) __THROW;
- /* Create a new stream that refers to a memory buffer. */
- extern FILE *fmemopen (void *__s, size_t __len, __const char *__modes) __THROW;
- /* Open a stream that writes into a malloc'd buffer that is expanded as
- necessary. *BUFLOC and *SIZELOC are updated with the buffer's location
- and the number of characters written on fflush or fclose. */
- extern FILE *open_memstream (char **__restrict __bufloc,
- size_t *__restrict __sizeloc) __THROW;
- #endif
- __BEGIN_NAMESPACE_STD
- /* If BUF is NULL, make STREAM unbuffered.
- Else make it use buffer BUF, of size BUFSIZ. */
- extern void setbuf (FILE *__restrict __stream, char *__restrict __buf) __THROW;
- /* Make STREAM use buffering mode MODE.
- If BUF is not NULL, use N bytes of it for buffering;
- else allocate an internal buffer N bytes long. */
- extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf,
- int __modes, size_t __n) __THROW;
- __END_NAMESPACE_STD
- #ifdef __USE_BSD
- /* If BUF is NULL, make STREAM unbuffered.
- Else make it use SIZE bytes of BUF for buffering. */
- extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf,
- size_t __size) __THROW;
- /* Make STREAM line-buffered. */
- extern void setlinebuf (FILE *__stream) __THROW;
- #endif
- __BEGIN_NAMESPACE_STD
- /* Write formatted output to STREAM.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int fprintf (FILE *__restrict __stream,
- __const char *__restrict __format, ...);
- /* Write formatted output to stdout.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int printf (__const char *__restrict __format, ...);
- /* Write formatted output to S. */
- extern int sprintf (char *__restrict __s,
- __const char *__restrict __format, ...) __THROW;
- /* Write formatted output to S from argument list ARG.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int vfprintf (FILE *__restrict __s, __const char *__restrict __format,
- _G_va_list __arg);
- /* Write formatted output to stdout from argument list ARG.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int vprintf (__const char *__restrict __format, _G_va_list __arg);
- /* Write formatted output to S from argument list ARG. */
- extern int vsprintf (char *__restrict __s, __const char *__restrict __format,
- _G_va_list __arg) __THROW;
- __END_NAMESPACE_STD
- #if defined __USE_BSD || defined __USE_ISOC99 || defined __USE_UNIX98
- __BEGIN_NAMESPACE_C99
- /* Maximum chars of output to write in MAXLEN. */
- extern int snprintf (char *__restrict __s, size_t __maxlen,
- __const char *__restrict __format, ...)
- __THROW __attribute__ ((__format__ (__printf__, 3, 4)));
- extern int vsnprintf (char *__restrict __s, size_t __maxlen,
- __const char *__restrict __format, _G_va_list __arg)
- __THROW __attribute__ ((__format__ (__printf__, 3, 0)));
- __END_NAMESPACE_C99
- #endif
- #ifdef __USE_GNU
- /* Write formatted output to a string dynamically allocated with `malloc'.
- Store the address of the string in *PTR. */
- extern int vasprintf (char **__restrict __ptr, __const char *__restrict __f,
- _G_va_list __arg)
- __THROW __attribute__ ((__format__ (__printf__, 2, 0)));
- extern int __asprintf (char **__restrict __ptr,
- __const char *__restrict __fmt, ...)
- __THROW __attribute__ ((__format__ (__printf__, 2, 3)));
- extern int asprintf (char **__restrict __ptr,
- __const char *__restrict __fmt, ...)
- __THROW __attribute__ ((__format__ (__printf__, 2, 3)));
- /* Write formatted output to a file descriptor.
- These functions are not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation they are cancellation points and
- therefore not marked with __THROW. */
- extern int vdprintf (int __fd, __const char *__restrict __fmt,
- _G_va_list __arg)
- __attribute__ ((__format__ (__printf__, 2, 0)));
- extern int dprintf (int __fd, __const char *__restrict __fmt, ...)
- __attribute__ ((__format__ (__printf__, 2, 3)));
- #endif
- __BEGIN_NAMESPACE_STD
- /* Read formatted input from STREAM.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int fscanf (FILE *__restrict __stream,
- __const char *__restrict __format, ...);
- /* Read formatted input from stdin.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int scanf (__const char *__restrict __format, ...);
- /* Read formatted input from S. */
- extern int sscanf (__const char *__restrict __s,
- __const char *__restrict __format, ...) __THROW;
- __END_NAMESPACE_STD
- #ifdef __USE_ISOC99
- __BEGIN_NAMESPACE_C99
- /* Read formatted input from S into argument list ARG.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int vfscanf (FILE *__restrict __s, __const char *__restrict __format,
- _G_va_list __arg)
- __attribute__ ((__format__ (__scanf__, 2, 0)));
- /* Read formatted input from stdin into argument list ARG.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int vscanf (__const char *__restrict __format, _G_va_list __arg)
- __attribute__ ((__format__ (__scanf__, 1, 0)));
- /* Read formatted input from S into argument list ARG. */
- extern int vsscanf (__const char *__restrict __s,
- __const char *__restrict __format, _G_va_list __arg)
- __THROW __attribute__ ((__format__ (__scanf__, 2, 0)));
- __END_NAMESPACE_C99
- #endif /* Use ISO C9x. */
- __BEGIN_NAMESPACE_STD
- /* Read a character from STREAM.
- These functions are possible cancellation points and therefore not
- marked with __THROW. */
- extern int fgetc (FILE *__stream);
- extern int getc (FILE *__stream);
- /* Read a character from stdin.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int getchar (void);
- __END_NAMESPACE_STD
- /* The C standard explicitly says this is a macro, so we always do the
- optimization for it. */
- #define getc(_fp) _IO_getc (_fp)
- #if defined __USE_POSIX || defined __USE_MISC
- /* These are defined in POSIX.1:1996.
- These functions are possible cancellation points and therefore not
- marked with __THROW. */
- extern int getc_unlocked (FILE *__stream);
- extern int getchar_unlocked (void);
- #endif /* Use POSIX or MISC. */
- #ifdef __USE_MISC
- /* Faster version when locking is not necessary.
- This function is not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation it is a cancellation point and
- therefore not marked with __THROW. */
- extern int fgetc_unlocked (FILE *__stream);
- #endif /* Use MISC. */
- __BEGIN_NAMESPACE_STD
- /* Write a character to STREAM.
- These functions are possible cancellation points and therefore not
- marked with __THROW.
- These functions is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int fputc (int __c, FILE *__stream);
- extern int putc (int __c, FILE *__stream);
- /* Write a character to stdout.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int putchar (int __c);
- __END_NAMESPACE_STD
- /* The C standard explicitly says this can be a macro,
- so we always do the optimization for it. */
- #define putc(_ch, _fp) _IO_putc (_ch, _fp)
- #ifdef __USE_MISC
- /* Faster version when locking is not necessary.
- This function is not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation it is a cancellation point and
- therefore not marked with __THROW. */
- extern int fputc_unlocked (int __c, FILE *__stream);
- #endif /* Use MISC. */
- #if defined __USE_POSIX || defined __USE_MISC
- /* These are defined in POSIX.1:1996.
- These functions are possible cancellation points and therefore not
- marked with __THROW. */
- extern int putc_unlocked (int __c, FILE *__stream);
- extern int putchar_unlocked (int __c);
- #endif /* Use POSIX or MISC. */
- #if defined __USE_SVID || defined __USE_MISC
- || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
- /* Get a word (int) from STREAM. */
- extern int getw (FILE *__stream);
- /* Write a word (int) to STREAM. */
- extern int putw (int __w, FILE *__stream);
- #endif
- __BEGIN_NAMESPACE_STD
- /* Get a newline-terminated string of finite length from STREAM.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream);
- /* Get a newline-terminated string from stdin, removing the newline.
- DO NOT USE THIS FUNCTION!! There is no limit on how much it will read.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern char *gets (char *__s);
- __END_NAMESPACE_STD
- #ifdef __USE_GNU
- /* This function does the same as `fgets' but does not lock the stream.
- This function is not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation it is a cancellation point and
- therefore not marked with __THROW. */
- extern char *fgets_unlocked (char *__restrict __s, int __n,
- FILE *__restrict __stream);
- #endif
- #ifdef __USE_GNU
- /* Read up to (and including) a DELIMITER from STREAM into *LINEPTR
- (and null-terminate it). *LINEPTR is a pointer returned from malloc (or
- NULL), pointing to *N characters of space. It is realloc'd as
- necessary. Returns the number of characters read (not including the
- null terminator), or -1 on error or EOF.
- These functions are not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation they are cancellation points and
- therefore not marked with __THROW. */
- extern _IO_ssize_t __getdelim (char **__restrict __lineptr,
- size_t *__restrict __n, int __delimiter,
- FILE *__restrict __stream);
- extern _IO_ssize_t getdelim (char **__restrict __lineptr,
- size_t *__restrict __n, int __delimiter,
- FILE *__restrict __stream);
- /* Like `getdelim', but reads up to a newline.
- This function is not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation it is a cancellation point and
- therefore not marked with __THROW. */
- extern _IO_ssize_t getline (char **__restrict __lineptr,
- size_t *__restrict __n,
- FILE *__restrict __stream);
- #endif
- __BEGIN_NAMESPACE_STD
- /* Write a string to STREAM.
- This function is a possible cancellation points and therefore not
- marked with __THROW. */
- extern int fputs (__const char *__restrict __s, FILE *__restrict __stream);
- /* Write a string, followed by a newline, to stdout.
- This function is a possible cancellation points and therefore not
- marked with __THROW. */
- extern int puts (__const char *__s);
- /* Push a character back onto the input buffer of STREAM.
- This function is a possible cancellation points and therefore not
- marked with __THROW. */
- extern int ungetc (int __c, FILE *__stream);
- /* Read chunks of generic data from STREAM.
- This function is a possible cancellation points and therefore not
- marked with __THROW. */
- extern size_t fread (void *__restrict __ptr, size_t __size,
- size_t __n, FILE *__restrict __stream);
- /* Write chunks of generic data to STREAM.
- This function is a possible cancellation points and therefore not
- marked with __THROW. */
- extern size_t fwrite (__const void *__restrict __ptr, size_t __size,
- size_t __n, FILE *__restrict __s);
- __END_NAMESPACE_STD
- #ifdef __USE_GNU
- /* This function does the same as `fputs' but does not lock the stream.
- This function is not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation it is a cancellation point and
- therefore not marked with __THROW. */
- extern int fputs_unlocked (__const char *__restrict __s,
- FILE *__restrict __stream);
- #endif
- #ifdef __USE_MISC
- /* Faster versions when locking is not necessary.
- These functions are not part of POSIX and therefore no official
- cancellation point. But due to similarity with an POSIX interface
- or due to the implementation they are cancellation points and
- therefore not marked with __THROW. */
- extern size_t fread_unlocked (void *__restrict __ptr, size_t __size,
- size_t __n, FILE *__restrict __stream);
- extern size_t fwrite_unlocked (__const void *__restrict __ptr, size_t __size,
- size_t __n, FILE *__restrict __stream);
- #endif
- __BEGIN_NAMESPACE_STD
- /* Seek to a certain position on STREAM.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int fseek (FILE *__stream, long int __off, int __whence);
- /* Return the current position of STREAM.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern long int ftell (FILE *__stream);
- /* Rewind to the beginning of STREAM.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern void rewind (FILE *__stream);
- __END_NAMESPACE_STD
- /* The Single Unix Specification, Version 2, specifies an alternative,
- more adequate interface for the two functions above which deal with
- file offset. `long int' is not the right type. These definitions
- are originally defined in the Large File Support API. */
- #if defined __USE_LARGEFILE || defined __USE_XOPEN2K
- # ifndef __USE_FILE_OFFSET64
- /* Seek to a certain position on STREAM.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int fseeko (FILE *__stream, __off_t __off, int __whence);
- /* Return the current position of STREAM.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern __off_t ftello (FILE *__stream);
- # else
- # ifdef __REDIRECT
- extern int __REDIRECT (fseeko,
- (FILE *__stream, __off64_t __off, int __whence),
- fseeko64);
- extern __off64_t __REDIRECT (ftello, (FILE *__stream), ftello64);
- # else
- # define fseeko fseeko64
- # define ftello ftello64
- # endif
- # endif
- #endif
- __BEGIN_NAMESPACE_STD
- #ifndef __USE_FILE_OFFSET64
- /* Get STREAM's position.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos);
- /* Set STREAM's position.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int fsetpos (FILE *__stream, __const fpos_t *__pos);
- #else
- # ifdef __REDIRECT
- extern int __REDIRECT (fgetpos, (FILE *__restrict __stream,
- fpos_t *__restrict __pos), fgetpos64);
- extern int __REDIRECT (fsetpos,
- (FILE *__stream, __const fpos_t *__pos), fsetpos64);
- # else
- # define fgetpos fgetpos64
- # define fsetpos fsetpos64
- # endif
- #endif
- __END_NAMESPACE_STD
- #ifdef __USE_LARGEFILE64
- extern int fseeko64 (FILE *__stream, __off64_t __off, int __whence);
- extern __off64_t ftello64 (FILE *__stream);
- extern int fgetpos64 (FILE *__restrict __stream, fpos64_t *__restrict __pos);
- extern int fsetpos64 (FILE *__stream, __const fpos64_t *__pos);
- #endif
- __BEGIN_NAMESPACE_STD
- /* Clear the error and EOF indicators for STREAM. */
- extern void clearerr (FILE *__stream) __THROW;
- /* Return the EOF indicator for STREAM. */
- extern int feof (FILE *__stream) __THROW;
- /* Return the error indicator for STREAM. */
- extern int ferror (FILE *__stream) __THROW;
- __END_NAMESPACE_STD
- #ifdef __USE_MISC
- /* Faster versions when locking is not required. */
- extern void clearerr_unlocked (FILE *__stream) __THROW;
- extern int feof_unlocked (FILE *__stream) __THROW;
- extern int ferror_unlocked (FILE *__stream) __THROW;
- #endif
- __BEGIN_NAMESPACE_STD
- /* Print a message describing the meaning of the value of errno.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern void perror (__const char *__s);
- __END_NAMESPACE_STD
- /* Provide the declarations for `sys_errlist' and `sys_nerr' if they
- are available on this system. Even if available, these variables
- should not be used directly. The `strerror' function provides
- all the necessary functionality. */
- #include <bits/sys_errlist.h>
- #ifdef __USE_POSIX
- /* Return the system file descriptor for STREAM. */
- extern int fileno (FILE *__stream) __THROW;
- #endif /* Use POSIX. */
- #ifdef __USE_MISC
- /* Faster version when locking is not required. */
- extern int fileno_unlocked (FILE *__stream) __THROW;
- #endif
- #if (defined __USE_POSIX2 || defined __USE_SVID || defined __USE_BSD ||
- defined __USE_MISC)
- /* Create a new stream connected to a pipe running the given command.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern FILE *popen (__const char *__command, __const char *__modes);
- /* Close a stream opened by popen and return the status of its child.
- This function is a possible cancellation point and therefore not
- marked with __THROW. */
- extern int pclose (FILE *__stream);
- #endif
- #ifdef __USE_POSIX
- /* Return the name of the controlling terminal. */
- extern char *ctermid (char *__s) __THROW;
- #endif /* Use POSIX. */
- #ifdef __USE_XOPEN
- /* Return the name of the current user. */
- extern char *cuserid (char *__s);
- #endif /* Use X/Open, but not issue 6. */
- #ifdef __USE_GNU
- struct obstack; /* See <obstack.h>. */
- /* Write formatted output to an obstack. */
- extern int obstack_printf (struct obstack *__restrict __obstack,
- __const char *__restrict __format, ...)
- __THROW __attribute__ ((__format__ (__printf__, 2, 3)));
- extern int obstack_vprintf (struct obstack *__restrict __obstack,
- __const char *__restrict __format,
- _G_va_list __args)
- __THROW __attribute__ ((__format__ (__printf__, 2, 0)));
- #endif /* Use GNU. */
- #if defined __USE_POSIX || defined __USE_MISC
- /* These are defined in POSIX.1:1996. */
- /* Acquire ownership of STREAM. */
- extern void flockfile (FILE *__stream) __THROW;
- /* Try to acquire ownership of STREAM but do not block if it is not
- possible. */
- extern int ftrylockfile (FILE *__stream) __THROW;
- /* Relinquish the ownership granted for STREAM. */
- extern void funlockfile (FILE *__stream) __THROW;
- #endif /* POSIX || misc */
- #if defined __USE_XOPEN && !defined __USE_XOPEN2K && !defined __USE_GNU
- /* The X/Open standard requires some functions and variables to be
- declared here which do not belong into this header. But we have to
- follow. In GNU mode we don't do this nonsense. */
- # define __need_getopt
- # include <getopt.h>
- #endif /* X/Open, but not issue 6 and not for GNU. */
- /* If we are compiling with optimizing read this file. It contains
- several optimizing inline functions and macros. */
- #ifdef __USE_EXTERN_INLINES
- # include <bits/stdio.h>
- #endif
- #if __USE_FORTIFY_LEVEL > 0 && !defined __cplusplus
- # include <bits/stdio2.h>
- #endif
- __END_DECLS
- #endif /* <stdio.h> included. */
- #endif /* !_STDIO_H */