/* Define ISO C stdio on top of C++ iostreams.

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Copyright (C) 1991-2018 Free Software Foundation, Inc.

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This file is part of the GNU C Library.

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The GNU C Library is free software; you can redistribute it and/or

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modify it under the terms of the GNU Lesser General Public

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License as published by the Free Software Foundation; either

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version 2.1 of the License, or (at your option) any later version.

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The GNU C Library is distributed in the hope that it will be useful,

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but WITHOUT ANY WARRANTY; without even the implied warranty of

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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

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Lesser General Public License for more details.

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You should have received a copy of the GNU Lesser General Public

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License along with the GNU C Library; if not, see

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<http://www.gnu.org/licenses/>. */

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/*

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* ISO C99 Standard: 7.19 Input/output <stdio.h>

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*/

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#ifndef _STDIO_H

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#define _STDIO_H 1

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#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION

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#include <bits/libc-header-start.h>

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__BEGIN_DECLS

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#define __need_size_t

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#define __need_NULL

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#include <stddef.h>

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#define __need___va_list

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#include <stdarg.h>

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#include <bits/types.h>

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#include <bits/types/__fpos_t.h>

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#include <bits/types/__fpos64_t.h>

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#include <bits/types/__FILE.h>

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#include <bits/types/FILE.h>

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#include <bits/types/struct_FILE.h>

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#ifdef __USE_GNU

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# include <bits/types/cookie_io_functions_t.h>

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#endif

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#if defined __USE_XOPEN || defined __USE_XOPEN2K8

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# ifdef __GNUC__

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# ifndef _VA_LIST_DEFINED

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typedef __gnuc_va_list va_list;

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# define _VA_LIST_DEFINED

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# endif

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# else

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# include <stdarg.h>

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# endif

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#endif

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#if defined __USE_UNIX98 || defined __USE_XOPEN2K

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# ifndef __off_t_defined

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# ifndef __USE_FILE_OFFSET64

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typedef __off_t off_t;

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# else

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typedef __off64_t off_t;

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# endif

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# define __off_t_defined

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# endif

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# if defined __USE_LARGEFILE64 && !defined __off64_t_defined

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typedef __off64_t off64_t;

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# define __off64_t_defined

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# endif

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#endif

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#ifdef __USE_XOPEN2K8

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# ifndef __ssize_t_defined

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typedef __ssize_t ssize_t;

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# define __ssize_t_defined

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# endif

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#endif

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/* The type of the second argument to `fgetpos' and `fsetpos'. */

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#ifndef __USE_FILE_OFFSET64

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typedef __fpos_t fpos_t;

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#else

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typedef __fpos64_t fpos_t;

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#endif

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#ifdef __USE_LARGEFILE64

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typedef __fpos64_t fpos64_t;

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#endif

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/* The possibilities for the third argument to `setvbuf'. */

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#define _IOFBF 0 /* Fully buffered. */

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#define _IOLBF 1 /* Line buffered. */

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#define _IONBF 2 /* No buffering. */

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/* Default buffer size. */

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#define BUFSIZ 8192

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/* The value returned by fgetc and similar functions to indicate the

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end of the file. */

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#define EOF (-1)

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/* The possibilities for the third argument to `fseek'.

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These values should not be changed. */

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#define SEEK_SET 0 /* Seek from beginning of file. */

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#define SEEK_CUR 1 /* Seek from current position. */

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#define SEEK_END 2 /* Seek from end of file. */

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#ifdef __USE_GNU

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# define SEEK_DATA 3 /* Seek to next data. */

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# define SEEK_HOLE 4 /* Seek to next hole. */

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#endif

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#if defined __USE_MISC || defined __USE_XOPEN

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/* Default path prefix for `tempnam' and `tmpnam'. */

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# define P_tmpdir "/tmp"

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#endif

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/* Get the values:

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L_tmpnam How long an array of chars must be to be passed to `tmpnam'.

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TMP_MAX The minimum number of unique filenames generated by tmpnam

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(and tempnam when it uses tmpnam's name space),

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or tempnam (the two are separate).

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L_ctermid How long an array to pass to `ctermid'.

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L_cuserid How long an array to pass to `cuserid'.

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FOPEN_MAX Minimum number of files that can be open at once.

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FILENAME_MAX Maximum length of a filename. */

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#include <bits/stdio_lim.h>

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/* Standard streams. */

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extern FILE *stdin; /* Standard input stream. */

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extern FILE *stdout; /* Standard output stream. */

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extern FILE *stderr; /* Standard error output stream. */

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/* C89/C99 say they're macros. Make them happy. */

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#define stdin stdin

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#define stdout stdout

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#define stderr stderr

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/* Remove file FILENAME. */

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extern int remove (const char *__filename) __THROW;

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/* Rename file OLD to NEW. */

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extern int rename (const char *__old, const char *__new) __THROW;

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#ifdef __USE_ATFILE

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/* Rename file OLD relative to OLDFD to NEW relative to NEWFD. */

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extern int renameat (int __oldfd, const char *__old, int __newfd,

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const char *__new) __THROW;

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#endif

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#ifdef __USE_GNU

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/* Flags for renameat2. */

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# define RENAME_NOREPLACE (1 << 0)

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# define RENAME_EXCHANGE (1 << 1)

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# define RENAME_WHITEOUT (1 << 2)

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/* Rename file OLD relative to OLDFD to NEW relative to NEWFD, with

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additional flags. */

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extern int renameat2 (int __oldfd, const char *__old, int __newfd,

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const char *__new, unsigned int __flags) __THROW;

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#endif

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/* Create a temporary file and open it read/write.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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#ifndef __USE_FILE_OFFSET64

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extern FILE *tmpfile (void) __wur;

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#else

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# ifdef __REDIRECT

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extern FILE *__REDIRECT (tmpfile, (void), tmpfile64) __wur;

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# else

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# define tmpfile tmpfile64

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# endif

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#endif

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#ifdef __USE_LARGEFILE64

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extern FILE *tmpfile64 (void) __wur;

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#endif

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/* Generate a temporary filename. */

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extern char *tmpnam (char *__s) __THROW __wur;

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#ifdef __USE_MISC

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/* This is the reentrant variant of `tmpnam'. The only difference is

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that it does not allow S to be NULL. */

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extern char *tmpnam_r (char *__s) __THROW __wur;

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#endif

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#if defined __USE_MISC || defined __USE_XOPEN

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/* Generate a unique temporary filename using up to five characters of PFX

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if it is not NULL. The directory to put this file in is searched for

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as follows: First the environment variable "TMPDIR" is checked.

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If it contains the name of a writable directory, that directory is used.

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If not and if DIR is not NULL, that value is checked. If that fails,

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P_tmpdir is tried and finally "/tmp". The storage for the filename

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is allocated by `malloc'. */

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extern char *tempnam (const char *__dir, const char *__pfx)

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__THROW __attribute_malloc__ __wur;

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#endif

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/* Close STREAM.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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extern int fclose (FILE *__stream);

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/* Flush STREAM, or all streams if STREAM is NULL.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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extern int fflush (FILE *__stream);

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#ifdef __USE_MISC

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/* Faster versions when locking is not required.

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This function is not part of POSIX and therefore no official

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cancellation point. But due to similarity with an POSIX interface

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or due to the implementation it is a cancellation point and

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therefore not marked with __THROW. */

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extern int fflush_unlocked (FILE *__stream);

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#endif

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#ifdef __USE_GNU

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/* Close all streams.

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This function is not part of POSIX and therefore no official

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cancellation point. But due to similarity with an POSIX interface

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or due to the implementation it is a cancellation point and

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therefore not marked with __THROW. */

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extern int fcloseall (void);

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#endif

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#ifndef __USE_FILE_OFFSET64

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/* Open a file and create a new stream for it.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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extern FILE *fopen (const char *__restrict __filename,

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const char *__restrict __modes) __wur;

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/* Open a file, replacing an existing stream with it.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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extern FILE *freopen (const char *__restrict __filename,

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const char *__restrict __modes,

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FILE *__restrict __stream) __wur;

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#else

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# ifdef __REDIRECT

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extern FILE *__REDIRECT (fopen, (const char *__restrict __filename,

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const char *__restrict __modes), fopen64)

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__wur;

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extern FILE *__REDIRECT (freopen, (const char *__restrict __filename,

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const char *__restrict __modes,

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FILE *__restrict __stream), freopen64)

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__wur;

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# else

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# define fopen fopen64

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# define freopen freopen64

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# endif

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#endif

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#ifdef __USE_LARGEFILE64

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extern FILE *fopen64 (const char *__restrict __filename,

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const char *__restrict __modes) __wur;

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extern FILE *freopen64 (const char *__restrict __filename,

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const char *__restrict __modes,

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FILE *__restrict __stream) __wur;

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#endif

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#ifdef __USE_POSIX

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/* Create a new stream that refers to an existing system file descriptor. */

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extern FILE *fdopen (int __fd, const char *__modes) __THROW __wur;

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#endif

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#ifdef __USE_GNU

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/* Create a new stream that refers to the given magic cookie,

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and uses the given functions for input and output. */

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extern FILE *fopencookie (void *__restrict __magic_cookie,

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const char *__restrict __modes,

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cookie_io_functions_t __io_funcs) __THROW __wur;

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#endif

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#if defined __USE_XOPEN2K8 || __GLIBC_USE (LIB_EXT2)

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/* Create a new stream that refers to a memory buffer. */

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extern FILE *fmemopen (void *__s, size_t __len, const char *__modes)

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__THROW __wur;

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/* Open a stream that writes into a malloc'd buffer that is expanded as

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necessary. *BUFLOC and *SIZELOC are updated with the buffer's location

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and the number of characters written on fflush or fclose. */

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extern FILE *open_memstream (char **__bufloc, size_t *__sizeloc) __THROW __wur;

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#endif

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/* If BUF is NULL, make STREAM unbuffered.

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Else make it use buffer BUF, of size BUFSIZ. */

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extern void setbuf (FILE *__restrict __stream, char *__restrict __buf) __THROW;

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/* Make STREAM use buffering mode MODE.

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If BUF is not NULL, use N bytes of it for buffering;

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else allocate an internal buffer N bytes long. */

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extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf,

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int __modes, size_t __n) __THROW;

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#ifdef __USE_MISC

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/* If BUF is NULL, make STREAM unbuffered.

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Else make it use SIZE bytes of BUF for buffering. */

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extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf,

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size_t __size) __THROW;

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/* Make STREAM line-buffered. */

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extern void setlinebuf (FILE *__stream) __THROW;

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#endif

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/* Write formatted output to STREAM.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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extern int fprintf (FILE *__restrict __stream,

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const char *__restrict __format, ...);

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/* Write formatted output to stdout.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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extern int printf (const char *__restrict __format, ...);

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/* Write formatted output to S. */

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extern int sprintf (char *__restrict __s,

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const char *__restrict __format, ...) __THROWNL;

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/* Write formatted output to S from argument list ARG.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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extern int vfprintf (FILE *__restrict __s, const char *__restrict __format,

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__gnuc_va_list __arg);

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/* Write formatted output to stdout from argument list ARG.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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extern int vprintf (const char *__restrict __format, __gnuc_va_list __arg);

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/* Write formatted output to S from argument list ARG. */

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extern int vsprintf (char *__restrict __s, const char *__restrict __format,

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__gnuc_va_list __arg) __THROWNL;

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#if defined __USE_ISOC99 || defined __USE_UNIX98

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/* Maximum chars of output to write in MAXLEN. */

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extern int snprintf (char *__restrict __s, size_t __maxlen,

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const char *__restrict __format, ...)

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__THROWNL __attribute__ ((__format__ (__printf__, 3, 4)));

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extern int vsnprintf (char *__restrict __s, size_t __maxlen,

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const char *__restrict __format, __gnuc_va_list __arg)

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__THROWNL __attribute__ ((__format__ (__printf__, 3, 0)));

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#endif

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#if __GLIBC_USE (LIB_EXT2)

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/* Write formatted output to a string dynamically allocated with `malloc'.

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Store the address of the string in *PTR. */

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extern int vasprintf (char **__restrict __ptr, const char *__restrict __f,

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__gnuc_va_list __arg)

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__THROWNL __attribute__ ((__format__ (__printf__, 2, 0))) __wur;

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extern int __asprintf (char **__restrict __ptr,

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const char *__restrict __fmt, ...)

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__THROWNL __attribute__ ((__format__ (__printf__, 2, 3))) __wur;

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extern int asprintf (char **__restrict __ptr,

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const char *__restrict __fmt, ...)

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__THROWNL __attribute__ ((__format__ (__printf__, 2, 3))) __wur;

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#endif

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#ifdef __USE_XOPEN2K8

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/* Write formatted output to a file descriptor. */

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extern int vdprintf (int __fd, const char *__restrict __fmt,

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__gnuc_va_list __arg)

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__attribute__ ((__format__ (__printf__, 2, 0)));

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extern int dprintf (int __fd, const char *__restrict __fmt, ...)

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__attribute__ ((__format__ (__printf__, 2, 3)));

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#endif

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/* Read formatted input from STREAM.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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extern int fscanf (FILE *__restrict __stream,

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const char *__restrict __format, ...) __wur;

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/* Read formatted input from stdin.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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extern int scanf (const char *__restrict __format, ...) __wur;

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/* Read formatted input from S. */

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extern int sscanf (const char *__restrict __s,

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const char *__restrict __format, ...) __THROW;

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#if defined __USE_ISOC99 && !defined __USE_GNU \

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&& (!defined __LDBL_COMPAT || !defined __REDIRECT) \

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&& (defined __STRICT_ANSI__ || defined __USE_XOPEN2K)

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# ifdef __REDIRECT

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/* For strict ISO C99 or POSIX compliance disallow %as, %aS and %a[

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GNU extension which conflicts with valid %a followed by letter

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s, S or [. */

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extern int __REDIRECT (fscanf, (FILE *__restrict __stream,

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const char *__restrict __format, ...),

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__isoc99_fscanf) __wur;

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extern int __REDIRECT (scanf, (const char *__restrict __format, ...),

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__isoc99_scanf) __wur;

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extern int __REDIRECT_NTH (sscanf, (const char *__restrict __s,

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const char *__restrict __format, ...),

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__isoc99_sscanf);

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# else

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extern int __isoc99_fscanf (FILE *__restrict __stream,

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const char *__restrict __format, ...) __wur;

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extern int __isoc99_scanf (const char *__restrict __format, ...) __wur;

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extern int __isoc99_sscanf (const char *__restrict __s,

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const char *__restrict __format, ...) __THROW;

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# define fscanf __isoc99_fscanf

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# define scanf __isoc99_scanf

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# define sscanf __isoc99_sscanf

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# endif

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#endif

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#ifdef __USE_ISOC99

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/* Read formatted input from S into argument list ARG.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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extern int vfscanf (FILE *__restrict __s, const char *__restrict __format,

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__gnuc_va_list __arg)

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__attribute__ ((__format__ (__scanf__, 2, 0))) __wur;

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/* Read formatted input from stdin into argument list ARG.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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extern int vscanf (const char *__restrict __format, __gnuc_va_list __arg)

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__attribute__ ((__format__ (__scanf__, 1, 0))) __wur;

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/* Read formatted input from S into argument list ARG. */

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extern int vsscanf (const char *__restrict __s,

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const char *__restrict __format, __gnuc_va_list __arg)

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__THROW __attribute__ ((__format__ (__scanf__, 2, 0)));

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# if !defined __USE_GNU \

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&& (!defined __LDBL_COMPAT || !defined __REDIRECT) \

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&& (defined __STRICT_ANSI__ || defined __USE_XOPEN2K)

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# ifdef __REDIRECT

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/* For strict ISO C99 or POSIX compliance disallow %as, %aS and %a[

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GNU extension which conflicts with valid %a followed by letter

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s, S or [. */

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extern int __REDIRECT (vfscanf,

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(FILE *__restrict __s,

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const char *__restrict __format, __gnuc_va_list __arg),

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__isoc99_vfscanf)

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__attribute__ ((__format__ (__scanf__, 2, 0))) __wur;

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extern int __REDIRECT (vscanf, (const char *__restrict __format,

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__gnuc_va_list __arg), __isoc99_vscanf)

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__attribute__ ((__format__ (__scanf__, 1, 0))) __wur;

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extern int __REDIRECT_NTH (vsscanf,

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(const char *__restrict __s,

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const char *__restrict __format,

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__gnuc_va_list __arg), __isoc99_vsscanf)

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__attribute__ ((__format__ (__scanf__, 2, 0)));

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# else

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extern int __isoc99_vfscanf (FILE *__restrict __s,

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const char *__restrict __format,

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__gnuc_va_list __arg) __wur;

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extern int __isoc99_vscanf (const char *__restrict __format,

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__gnuc_va_list __arg) __wur;

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extern int __isoc99_vsscanf (const char *__restrict __s,

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const char *__restrict __format,

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__gnuc_va_list __arg) __THROW;

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# define vfscanf __isoc99_vfscanf

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# define vscanf __isoc99_vscanf

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# define vsscanf __isoc99_vsscanf

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# endif

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# endif

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#endif /* Use ISO C9x. */

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/* Read a character from STREAM.

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These functions are possible cancellation points and therefore not

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marked with __THROW. */

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extern int fgetc (FILE *__stream);

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extern int getc (FILE *__stream);

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/* Read a character from stdin.

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This function is a possible cancellation point and therefore not

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marked with __THROW. */

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extern int getchar (void);

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#ifdef __USE_POSIX199506

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