/* Define ISO C stdio on top of C++ iostreams.
- Copyright (C) 1991,1994-2002,2003,2004 Free Software Foundation, Inc.
+ Copyright (C) 1991-2020 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
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. */
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
/*
* ISO C99 Standard: 7.19 Input/output <stdio.h>
*/
#ifndef _STDIO_H
+#define _STDIO_H 1
-#if !defined __need_FILE && !defined __need___FILE
-# define _STDIO_H 1
-# include <features.h>
+#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
+#include <bits/libc-header-start.h>
__BEGIN_DECLS
-# define __need_size_t
-# define __need_NULL
-# include <stddef.h>
+#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. */
+#define __need___va_list
+#include <stdarg.h>
+#include <bits/types.h>
+#include <bits/types/__fpos_t.h>
+#include <bits/types/__fpos64_t.h>
+#include <bits/types/__FILE.h>
+#include <bits/types/FILE.h>
+#include <bits/types/struct_FILE.h>
-#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)
+#ifdef __USE_GNU
+# include <bits/types/cookie_io_functions_t.h>
#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
+#if defined __USE_XOPEN || defined __USE_XOPEN2K8
# ifdef __GNUC__
# ifndef _VA_LIST_DEFINED
-typedef _G_va_list va_list;
+typedef __gnuc_va_list va_list;
# define _VA_LIST_DEFINED
# endif
# else
# endif
#endif
+#if defined __USE_UNIX98 || defined __USE_XOPEN2K
+# ifndef __off_t_defined
+# ifndef __USE_FILE_OFFSET64
+typedef __off_t off_t;
+# else
+typedef __off64_t off_t;
+# endif
+# define __off_t_defined
+# endif
+# if defined __USE_LARGEFILE64 && !defined __off64_t_defined
+typedef __off64_t off64_t;
+# define __off64_t_defined
+# endif
+#endif
+
+#ifdef __USE_XOPEN2K8
+# ifndef __ssize_t_defined
+typedef __ssize_t ssize_t;
+# define __ssize_t_defined
+# 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;
+typedef __fpos_t fpos_t;
#else
-typedef _G_fpos64_t fpos_t;
+typedef __fpos64_t fpos_t;
#endif
-__END_NAMESPACE_STD
#ifdef __USE_LARGEFILE64
-typedef _G_fpos64_t fpos64_t;
+typedef __fpos64_t fpos64_t;
#endif
/* The possibilities for the third argument to `setvbuf'. */
-#define _IOFBF 0 /* Fully buffered. */
+#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
+#define BUFSIZ 8192
-/* End of file character.
- Some things throughout the library rely on this being -1. */
-#ifndef EOF
-# define EOF (-1)
-#endif
+/* The value returned by fgetc and similar functions to indicate the
+ end of the file. */
+#define EOF (-1)
/* The possibilities for the third argument to `fseek'.
#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. */
+#ifdef __USE_GNU
+# define SEEK_DATA 3 /* Seek to next data. */
+# define SEEK_HOLE 4 /* Seek to next hole. */
+#endif
-#if defined __USE_SVID || defined __USE_XOPEN
+#if defined __USE_MISC || 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),
+ (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'.
/* 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. */
+extern FILE *stdin; /* Standard input stream. */
+extern FILE *stdout; /* Standard output stream. */
+extern 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;
+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
+extern int rename (const char *__old, const char *__new) __THROW;
+#ifdef __USE_ATFILE
+/* Rename file OLD relative to OLDFD to NEW relative to NEWFD. */
+extern int renameat (int __oldfd, const char *__old, int __newfd,
+ const char *__new) __THROW;
+#endif
+
+#ifdef __USE_GNU
+/* Flags for renameat2. */
+# define RENAME_NOREPLACE (1 << 0)
+# define RENAME_EXCHANGE (1 << 1)
+# define RENAME_WHITEOUT (1 << 2)
+
+/* Rename file OLD relative to OLDFD to NEW relative to NEWFD, with
+ additional flags. */
+extern int renameat2 (int __oldfd, const char *__old, int __newfd,
+ const char *__new, unsigned int __flags) __THROW;
+#endif
-__BEGIN_NAMESPACE_STD
/* Create a temporary file and open it read/write.
- This function is a possible cancellation points and therefore not
+ This function is a possible cancellation point and therefore not
marked with __THROW. */
#ifndef __USE_FILE_OFFSET64
-extern FILE *tmpfile (void);
+extern FILE *tmpfile (void) __wur;
#else
# ifdef __REDIRECT
-extern FILE *__REDIRECT (tmpfile, (void), tmpfile64);
+extern FILE *__REDIRECT (tmpfile, (void), tmpfile64) __wur;
# else
# define tmpfile tmpfile64
# endif
#endif
#ifdef __USE_LARGEFILE64
-extern FILE *tmpfile64 (void);
+extern FILE *tmpfile64 (void) __wur;
#endif
/* Generate a temporary filename. */
-extern char *tmpnam (char *__s) __THROW;
-__END_NAMESPACE_STD
+extern char *tmpnam (char *__s) __THROW __wur;
#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;
+extern char *tmpnam_r (char *__s) __THROW __wur;
#endif
-#if defined __USE_SVID || defined __USE_XOPEN
+#if defined __USE_MISC || 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 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__;
+extern char *tempnam (const char *__dir, const char *__pfx)
+ __THROW __attribute_malloc__ __wur;
#endif
-__BEGIN_NAMESPACE_STD
/* Close STREAM.
This function is a possible cancellation point and therefore not
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.
#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);
+extern FILE *fopen (const char *__restrict __filename,
+ const char *__restrict __modes) __wur;
/* 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);
+extern FILE *freopen (const char *__restrict __filename,
+ const char *__restrict __modes,
+ FILE *__restrict __stream) __wur;
#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);
+extern FILE *__REDIRECT (fopen, (const char *__restrict __filename,
+ const char *__restrict __modes), fopen64)
+ __wur;
+extern FILE *__REDIRECT (freopen, (const char *__restrict __filename,
+ const char *__restrict __modes,
+ FILE *__restrict __stream), freopen64)
+ __wur;
# 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);
+extern FILE *fopen64 (const char *__restrict __filename,
+ const char *__restrict __modes) __wur;
+extern FILE *freopen64 (const char *__restrict __filename,
+ const char *__restrict __modes,
+ FILE *__restrict __stream) __wur;
#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;
+extern FILE *fdopen (int __fd, const char *__modes) __THROW __wur;
#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;
+ const char *__restrict __modes,
+ cookie_io_functions_t __io_funcs) __THROW __wur;
+#endif
+#if defined __USE_XOPEN2K8 || __GLIBC_USE (LIB_EXT2)
/* Create a new stream that refers to a memory buffer. */
-extern FILE *fmemopen (void *__s, size_t __len, __const char *__modes) __THROW;
+extern FILE *fmemopen (void *__s, size_t __len, const char *__modes)
+ __THROW __wur;
/* 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;
+extern FILE *open_memstream (char **__bufloc, size_t *__sizeloc) __THROW __wur;
#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;
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
+#ifdef __USE_MISC
/* 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,
#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, ...);
+ 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, ...);
+extern int printf (const char *__restrict __format, ...);
/* Write formatted output to S. */
extern int sprintf (char *__restrict __s,
- __const char *__restrict __format, ...) __THROW;
+ const char *__restrict __format, ...) __THROWNL;
/* 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);
+extern int vfprintf (FILE *__restrict __s, const char *__restrict __format,
+ __gnuc_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);
+extern int vprintf (const char *__restrict __format, __gnuc_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
+extern int vsprintf (char *__restrict __s, const char *__restrict __format,
+ __gnuc_va_list __arg) __THROWNL;
-#if defined __USE_BSD || defined __USE_ISOC99 || defined __USE_UNIX98
-__BEGIN_NAMESPACE_C99
+#if defined __USE_ISOC99 || defined __USE_UNIX98
/* 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)));
+ const char *__restrict __format, ...)
+ __THROWNL __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
+ const char *__restrict __format, __gnuc_va_list __arg)
+ __THROWNL __attribute__ ((__format__ (__printf__, 3, 0)));
#endif
-#ifdef __USE_GNU
+#if __GLIBC_USE (LIB_EXT2)
/* 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 vasprintf (char **__restrict __ptr, const char *__restrict __f,
+ __gnuc_va_list __arg)
+ __THROWNL __attribute__ ((__format__ (__printf__, 2, 0))) __wur;
extern int __asprintf (char **__restrict __ptr,
- __const char *__restrict __fmt, ...)
- __THROW __attribute__ ((__format__ (__printf__, 2, 3)));
+ const char *__restrict __fmt, ...)
+ __THROWNL __attribute__ ((__format__ (__printf__, 2, 3))) __wur;
extern int asprintf (char **__restrict __ptr,
- __const char *__restrict __fmt, ...)
- __THROW __attribute__ ((__format__ (__printf__, 2, 3)));
-
-/* Write formatted output to a file descriptor.
+ const char *__restrict __fmt, ...)
+ __THROWNL __attribute__ ((__format__ (__printf__, 2, 3))) __wur;
+#endif
- 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)
+#ifdef __USE_XOPEN2K8
+/* Write formatted output to a file descriptor. */
+extern int vdprintf (int __fd, const char *__restrict __fmt,
+ __gnuc_va_list __arg)
__attribute__ ((__format__ (__printf__, 2, 0)));
-extern int dprintf (int __fd, __const char *__restrict __fmt, ...)
+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, ...);
+ const char *__restrict __format, ...) __wur;
/* 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, ...);
+extern int scanf (const char *__restrict __format, ...) __wur;
/* Read formatted input from S. */
-extern int sscanf (__const char *__restrict __s,
- __const char *__restrict __format, ...) __THROW;
-__END_NAMESPACE_STD
+extern int sscanf (const char *__restrict __s,
+ const char *__restrict __format, ...) __THROW;
+
+/* For historical reasons, the C99-compliant versions of the scanf
+ functions are at alternative names. When __LDBL_COMPAT or
+ __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI are in effect, this is handled in
+ bits/stdio-ldbl.h. */
+#include <bits/floatn.h>
+#if !__GLIBC_USE (DEPRECATED_SCANF) && !defined __LDBL_COMPAT \
+ && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 0
+# ifdef __REDIRECT
+extern int __REDIRECT (fscanf, (FILE *__restrict __stream,
+ const char *__restrict __format, ...),
+ __isoc99_fscanf) __wur;
+extern int __REDIRECT (scanf, (const char *__restrict __format, ...),
+ __isoc99_scanf) __wur;
+extern int __REDIRECT_NTH (sscanf, (const char *__restrict __s,
+ const char *__restrict __format, ...),
+ __isoc99_sscanf);
+# else
+extern int __isoc99_fscanf (FILE *__restrict __stream,
+ const char *__restrict __format, ...) __wur;
+extern int __isoc99_scanf (const char *__restrict __format, ...) __wur;
+extern int __isoc99_sscanf (const char *__restrict __s,
+ const char *__restrict __format, ...) __THROW;
+# define fscanf __isoc99_fscanf
+# define scanf __isoc99_scanf
+# define sscanf __isoc99_sscanf
+# endif
+#endif
#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)));
+extern int vfscanf (FILE *__restrict __s, const char *__restrict __format,
+ __gnuc_va_list __arg)
+ __attribute__ ((__format__ (__scanf__, 2, 0))) __wur;
/* 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)));
+extern int vscanf (const char *__restrict __format, __gnuc_va_list __arg)
+ __attribute__ ((__format__ (__scanf__, 1, 0))) __wur;
/* Read formatted input from S into argument list ARG. */
-extern int vsscanf (__const char *__restrict __s,
- __const char *__restrict __format, _G_va_list __arg)
+extern int vsscanf (const char *__restrict __s,
+ const char *__restrict __format, __gnuc_va_list __arg)
__THROW __attribute__ ((__format__ (__scanf__, 2, 0)));
-__END_NAMESPACE_C99
+
+/* Same redirection as above for the v*scanf family. */
+# if !__GLIBC_USE (DEPRECATED_SCANF)
+# if defined __REDIRECT && !defined __LDBL_COMPAT \
+ && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 0
+extern int __REDIRECT (vfscanf,
+ (FILE *__restrict __s,
+ const char *__restrict __format, __gnuc_va_list __arg),
+ __isoc99_vfscanf)
+ __attribute__ ((__format__ (__scanf__, 2, 0))) __wur;
+extern int __REDIRECT (vscanf, (const char *__restrict __format,
+ __gnuc_va_list __arg), __isoc99_vscanf)
+ __attribute__ ((__format__ (__scanf__, 1, 0))) __wur;
+extern int __REDIRECT_NTH (vsscanf,
+ (const char *__restrict __s,
+ const char *__restrict __format,
+ __gnuc_va_list __arg), __isoc99_vsscanf)
+ __attribute__ ((__format__ (__scanf__, 2, 0)));
+# elif !defined __REDIRECT
+extern int __isoc99_vfscanf (FILE *__restrict __s,
+ const char *__restrict __format,
+ __gnuc_va_list __arg) __wur;
+extern int __isoc99_vscanf (const char *__restrict __format,
+ __gnuc_va_list __arg) __wur;
+extern int __isoc99_vsscanf (const char *__restrict __s,
+ const char *__restrict __format,
+ __gnuc_va_list __arg) __THROW;
+# define vfscanf __isoc99_vfscanf
+# define vscanf __isoc99_vscanf
+# define vsscanf __isoc99_vsscanf
+# endif
+# endif
#endif /* Use ISO C9x. */
-__BEGIN_NAMESPACE_STD
/* Read a character from STREAM.
These functions are possible cancellation points and therefore not
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
+#ifdef __USE_POSIX199506
/* 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. */
+#endif /* Use POSIX. */
#ifdef __USE_MISC
/* Faster version when locking is not necessary.
#endif /* Use MISC. */
-__BEGIN_NAMESPACE_STD
/* Write a character to STREAM.
These functions are possible cancellation points and therefore not
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.
extern int fputc_unlocked (int __c, FILE *__stream);
#endif /* Use MISC. */
-#if defined __USE_POSIX || defined __USE_MISC
+#ifdef __USE_POSIX199506
/* 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. */
+#endif /* Use POSIX. */
-#if defined __USE_SVID || defined __USE_MISC \
+#if defined __USE_MISC \
|| (defined __USE_XOPEN && !defined __USE_XOPEN2K)
/* Get a word (int) from STREAM. */
extern int getw (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);
+extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
+ __wur __attr_access ((__write_only__, 1, 2));
+#if __GLIBC_USE (DEPRECATED_GETS)
/* 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 impossible to use safely. It has been officially
+ removed from ISO C11 and ISO C++14, and we have also removed it
+ from the _GNU_SOURCE feature list. It remains available when
+ explicitly using an old ISO C, Unix, or POSIX standard.
This function is a possible cancellation point and therefore not
marked with __THROW. */
-extern char *gets (char *__s);
-__END_NAMESPACE_STD
+extern char *gets (char *__s) __wur __attribute_deprecated__;
+#endif
#ifdef __USE_GNU
/* This function does the same as `fgets' but does not lock the stream.
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);
+ FILE *__restrict __stream) __wur
+ __attr_access ((__write_only__, 1, 2));
#endif
-#ifdef __USE_GNU
+#if defined __USE_XOPEN2K8 || __GLIBC_USE (LIB_EXT2)
/* 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
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);
+extern __ssize_t __getdelim (char **__restrict __lineptr,
+ size_t *__restrict __n, int __delimiter,
+ FILE *__restrict __stream) __wur;
+extern __ssize_t getdelim (char **__restrict __lineptr,
+ size_t *__restrict __n, int __delimiter,
+ FILE *__restrict __stream) __wur;
/* Like `getdelim', but reads up to a newline.
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);
+extern __ssize_t getline (char **__restrict __lineptr,
+ size_t *__restrict __n,
+ FILE *__restrict __stream) __wur;
#endif
-__BEGIN_NAMESPACE_STD
/* Write a string to STREAM.
- This function is a possible cancellation points and therefore not
+ This function is a possible cancellation point and therefore not
marked with __THROW. */
-extern int fputs (__const char *__restrict __s, FILE *__restrict __stream);
+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
+ This function is a possible cancellation point and therefore not
marked with __THROW. */
-extern int puts (__const char *__s);
+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
+ This function is a possible cancellation point 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
+ This function is a possible cancellation point and therefore not
marked with __THROW. */
extern size_t fread (void *__restrict __ptr, size_t __size,
- size_t __n, FILE *__restrict __stream);
+ size_t __n, FILE *__restrict __stream) __wur;
/* Write chunks of generic data to STREAM.
- This function is a possible cancellation points and therefore not
+ This function is a possible cancellation point and therefore not
marked with __THROW. */
-extern size_t fwrite (__const void *__restrict __ptr, size_t __size,
+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.
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,
+extern int fputs_unlocked (const char *__restrict __s,
FILE *__restrict __stream);
#endif
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) __wur;
+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
This function is a possible cancellation point and therefore not
marked with __THROW. */
-extern long int ftell (FILE *__stream);
+extern long int ftell (FILE *__stream) __wur;
/* 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
This function is a possible cancellation point and therefore not
marked with __THROW. */
-extern __off_t ftello (FILE *__stream);
+extern __off_t ftello (FILE *__stream) __wur;
# else
# ifdef __REDIRECT
extern int __REDIRECT (fseeko,
# 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 fsetpos (FILE *__stream, __const fpos_t *__pos);
+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);
+ (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 __off64_t ftello64 (FILE *__stream) __wur;
extern int fgetpos64 (FILE *__restrict __stream, fpos64_t *__restrict __pos);
-extern int fsetpos64 (FILE *__stream, __const fpos64_t *__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;
+extern int feof (FILE *__stream) __THROW __wur;
/* Return the error indicator for STREAM. */
-extern int ferror (FILE *__stream) __THROW;
-__END_NAMESPACE_STD
+extern int ferror (FILE *__stream) __THROW __wur;
#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;
+extern int feof_unlocked (FILE *__stream) __THROW __wur;
+extern int ferror_unlocked (FILE *__stream) __THROW __wur;
#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
+extern void perror (const char *__s);
/* Provide the declarations for `sys_errlist' and `sys_nerr' if they
are available on this system. Even if available, these variables
#ifdef __USE_POSIX
/* Return the system file descriptor for STREAM. */
-extern int fileno (FILE *__stream) __THROW;
+extern int fileno (FILE *__stream) __THROW __wur;
#endif /* Use POSIX. */
#ifdef __USE_MISC
/* Faster version when locking is not required. */
-extern int fileno_unlocked (FILE *__stream) __THROW;
+extern int fileno_unlocked (FILE *__stream) __THROW __wur;
#endif
-#if (defined __USE_POSIX2 || defined __USE_SVID || defined __USE_BSD || \
- defined __USE_MISC)
+#ifdef __USE_POSIX2
/* 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);
+extern FILE *popen (const char *__command, const char *__modes) __wur;
/* Close a stream opened by popen and return the status of its child.
#endif /* Use POSIX. */
-#ifdef __USE_XOPEN
+#if (defined __USE_XOPEN && !defined __USE_XOPEN2K) || defined __USE_GNU
/* Return the name of the current user. */
extern char *cuserid (char *__s);
#endif /* Use X/Open, but not issue 6. */
/* Write formatted output to an obstack. */
extern int obstack_printf (struct obstack *__restrict __obstack,
- __const char *__restrict __format, ...)
- __THROW __attribute__ ((__format__ (__printf__, 2, 3)));
+ const char *__restrict __format, ...)
+ __THROWNL __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)));
+ const char *__restrict __format,
+ __gnuc_va_list __args)
+ __THROWNL __attribute__ ((__format__ (__printf__, 2, 0)));
#endif /* Use GNU. */
-#if defined __USE_POSIX || defined __USE_MISC
+#ifdef __USE_POSIX199506
/* These are defined in POSIX.1:1996. */
/* Acquire ownership of STREAM. */
/* Try to acquire ownership of STREAM but do not block if it is not
possible. */
-extern int ftrylockfile (FILE *__stream) __THROW;
+extern int ftrylockfile (FILE *__stream) __THROW __wur;
/* Relinquish the ownership granted for STREAM. */
extern void funlockfile (FILE *__stream) __THROW;
-#endif /* POSIX || misc */
+#endif /* POSIX */
#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. */
+/* X/Open Issues 1-5 required getopt to be declared in this
+ header. It was removed in Issue 6. GNU follows Issue 6. */
+# include <bits/getopt_posix.h>
+#endif
+
+/* Slow-path routines used by the optimized inline functions in
+ bits/stdio.h. */
+extern int __uflow (FILE *);
+extern int __overflow (FILE *, int);
/* 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
+#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
# include <bits/stdio2.h>
#endif
+#include <bits/floatn.h>
+#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
+# include <bits/stdio-ldbl.h>
+#endif
+
__END_DECLS
#endif /* <stdio.h> included. */
-
-#endif /* !_STDIO_H */