stdio.h

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/* Define ISO C stdio on top of C++ iostreams.
   Copyright (C) 1991, 1994-1999, 2000, 2001 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

/* 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


#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'.  */
#ifndef __USE_FILE_OFFSET64
typedef _G_fpos_t fpos_t;
#else
typedef _G_fpos64_t fpos_t;
#endif
#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 FILE *stdin;		/* Standard input stream.  */
extern FILE *stdout;		/* Standard output stream.  */
extern FILE *stderr;		/* Standard error output stream.  */
#ifdef __STDC__
/* C89/C99 say they're macros.  Make them happy.  */
#define stdin stdin
#define stdout stdout
#define stderr stderr
#endif

/* 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;


/* Create a temporary file and open it read/write.  */
#ifndef __USE_FILE_OFFSET64
extern FILE *tmpfile (void) __THROW;
#else
# ifdef __REDIRECT
extern FILE *__REDIRECT (tmpfile, (void) __THROW, tmpfile64);
# else
#  define tmpfile tmpfile64
# endif
#endif
#ifdef __USE_LARGEFILE64
extern FILE *tmpfile64 (void) __THROW;
#endif
/* Generate a temporary filename.  */
extern char *tmpnam (char *__s) __THROW;

#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


/* Close STREAM.  */
extern int fclose (FILE *__stream) __THROW;
/* Flush STREAM, or all streams if STREAM is NULL.  */
extern int fflush (FILE *__stream) __THROW;

#ifdef __USE_MISC
/* Faster versions when locking is not required.  */
extern int fflush_unlocked (FILE *__stream) __THROW;
#endif

#ifdef __USE_GNU
/* Close all streams.  */
extern int fcloseall (void) __THROW;
#endif


#ifndef __USE_FILE_OFFSET64
/* Open a file and create a new stream for it.  */
extern FILE *fopen (__const char *__restrict __filename,
		    __const char *__restrict __modes) __THROW;
/* Open a file, replacing an existing stream with it. */
extern FILE *freopen (__const char *__restrict __filename,
		      __const char *__restrict __modes,
		      FILE *__restrict __stream) __THROW;
#else
# ifdef __REDIRECT
extern FILE *__REDIRECT (fopen, (__const char *__restrict __filename,
				 __const char *__restrict __modes) __THROW,
			 fopen64);
extern FILE *__REDIRECT (freopen, (__const char *__restrict __filename,
				   __const char *__restrict __modes,
				   FILE *__restrict __stream) __THROW,
			 freopen64);
# else
#  define fopen fopen64
#  define freopen freopen64
# endif
#endif
#ifdef __USE_LARGEFILE64
extern FILE *fopen64 (__const char *__restrict __filename,
		      __const char *__restrict __modes) __THROW;
extern FILE *freopen64 (__const char *__restrict __filename,
			__const char *__restrict __modes,
			FILE *__restrict __stream) __THROW;
#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


/* 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;

#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


/* Write formatted output to STREAM.  */
extern int fprintf (FILE *__restrict __stream,
		    __const char *__restrict __format, ...) __THROW;
/* Write formatted output to stdout.  */
extern int printf (__const char *__restrict __format, ...) __THROW;
/* 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.  */
extern int vfprintf (FILE *__restrict __s, __const char *__restrict __format,
		     _G_va_list __arg) __THROW;
/* Write formatted output to stdout from argument list ARG.  */
extern int vprintf (__const char *__restrict __format, _G_va_list __arg)
     __THROW;
/* Write formatted output to S from argument list ARG.  */
extern int vsprintf (char *__restrict __s, __const char *__restrict __format,
		     _G_va_list __arg) __THROW;

#if defined __USE_BSD || 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)));

extern int vsnprintf (char *__restrict __s, size_t __maxlen,
		      __const char *__restrict __format, _G_va_list __arg)
     __THROW __attribute__ ((__format__ (__printf__, 3, 0)));
#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.  */
extern int vdprintf (int __fd, __const char *__restrict __fmt,
		     _G_va_list __arg)
     __THROW __attribute__ ((__format__ (__printf__, 2, 0)));