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/* Copyright (C) 1991-2018 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, see
<http://www.gnu.org/licenses/>. */
#ifndef __struct_FILE_defined
#define __struct_FILE_defined 1
/* Caution: The contents of this file are not part of the official
stdio.h API. However, much of it is part of the official *binary*
interface, and therefore cannot be changed. */
#if defined _IO_USE_OLD_IO_FILE && !defined _LIBC
# error "_IO_USE_OLD_IO_FILE should only be defined when building libc itself"
#endif
#if defined _IO_lock_t_defined && !defined _LIBC
# error "_IO_lock_t_defined should only be defined when building libc itself"
#endif
#include <bits/types.h>
struct _IO_FILE;
struct _IO_marker;
struct _IO_codecvt;
struct _IO_wide_data;
/* During the build of glibc itself, _IO_lock_t will already have been
defined by internal headers. */
#ifndef _IO_lock_t_defined
typedef void _IO_lock_t;
#endif
/* The tag name of this struct is _IO_FILE to preserve historic
C++ mangled names for functions taking FILE* arguments.
That name should not be used in new code. */
struct _IO_FILE
{
int _flags; /* High-order word is _IO_MAGIC; rest is flags. */
/* The following pointers correspond to the C++ streambuf protocol. */
char *_IO_read_ptr; /* Current read pointer */
char *_IO_read_end; /* End of get area. */
char *_IO_read_base; /* Start of putback+get area. */
char *_IO_write_base; /* Start of put area. */
char *_IO_write_ptr; /* Current put pointer. */
char *_IO_write_end; /* End of put area. */
char *_IO_buf_base; /* Start of reserve area. */
char *_IO_buf_end; /* End of reserve area. */
/* The following fields are used to support backing up and undo. */
char *_IO_save_base; /* Pointer to start of non-current get area. */
char *_IO_backup_base; /* Pointer to first valid character of backup area */
char *_IO_save_end; /* Pointer to end of non-current get area. */
struct _IO_marker *_markers;
struct _IO_FILE *_chain;
int _fileno;
int _flags2;
__off_t _old_offset; /* This used to be _offset but it's too small. */
/* 1+column number of pbase(); 0 is unknown. */
unsigned short _cur_column;
signed char _vtable_offset;
char _shortbuf[1];
_IO_lock_t *_lock;
#ifdef _IO_USE_OLD_IO_FILE
};
struct _IO_FILE_complete
{
struct _IO_FILE _file;
#endif
__off64_t _offset;
/* Wide character stream stuff. */
struct _IO_codecvt *_codecvt;
struct _IO_wide_data *_wide_data;
struct _IO_FILE *_freeres_list;
void *_freeres_buf;
size_t __pad5;
int _mode;
/* Make sure we don't get into trouble again. */
char _unused2[15 * sizeof (int) - 4 * sizeof (void *) - sizeof (size_t)];
};
/* These macros are used by bits/stdio.h and internal headers. */
#define __getc_unlocked_body(_fp) \
(__glibc_unlikely ((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end) \
? __uflow (_fp) : *(unsigned char *) (_fp)->_IO_read_ptr++)
#define __putc_unlocked_body(_ch, _fp) \
(__glibc_unlikely ((_fp)->_IO_write_ptr >= (_fp)->_IO_write_end) \
? __overflow (_fp, (unsigned char) (_ch)) \
: (unsigned char) (*(_fp)->_IO_write_ptr++ = (_ch)))
#define _IO_EOF_SEEN 0x0010
#define __feof_unlocked_body(_fp) (((_fp)->_flags & _IO_EOF_SEEN) != 0)
#define _IO_ERR_SEEN 0x0020
#define __ferror_unlocked_body(_fp) (((_fp)->_flags & _IO_ERR_SEEN) != 0)
#define _IO_USER_LOCK 0x8000
/* Many more flag bits are defined internally. */
#endif