| 1 | /* Copyright (C) 1991,92,93,94,95,97,98,99,2000,2001 Free Software Foundation, Inc.
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| 2 | This file is part of the GNU IO Library.
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| 3 | Written by Per Bothner <bothner@cygnus.com>.
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| 4 |
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| 5 | This library is free software; you can redistribute it and/or
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| 6 | modify it under the terms of the GNU General Public License as
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| 7 | published by the Free Software Foundation; either version 2, or (at
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| 8 | your option) any later version.
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| 9 |
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| 10 | This library is distributed in the hope that it will be useful, but
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| 11 | WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 13 | General Public License for more details.
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| 14 |
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| 15 | You should have received a copy of the GNU General Public License
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| 16 | along with this library; see the file COPYING. If not, write to
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| 17 | the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
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| 18 | MA 02111-1307, USA.
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| 19 |
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| 20 | As a special exception, if you link this library with files
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| 21 | compiled with a GNU compiler to produce an executable, this does
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| 22 | not cause the resulting executable to be covered by the GNU General
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| 23 | Public License. This exception does not however invalidate any
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| 24 | other reasons why the executable file might be covered by the GNU
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| 25 | General Public License. */
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| 26 |
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| 27 | #ifndef _IO_STDIO_H
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| 28 | #define _IO_STDIO_H
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| 29 |
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| 30 | #include <_G_config.h>
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| 31 | /* ALL of these should be defined in _G_config.h */
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| 32 | #define _IO_pos_t _G_fpos_t /* obsolete */
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| 33 | #define _IO_fpos_t _G_fpos_t
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| 34 | #define _IO_fpos64_t _G_fpos64_t
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| 35 | #define _IO_size_t _G_size_t
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| 36 | #define _IO_ssize_t _G_ssize_t
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| 37 | #define _IO_off_t _G_off_t
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| 38 | #define _IO_off64_t _G_off64_t
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| 39 | #define _IO_pid_t _G_pid_t
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| 40 | #define _IO_uid_t _G_uid_t
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| 41 | #define _IO_iconv_t _G_iconv_t
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| 42 | #define _IO_HAVE_SYS_WAIT _G_HAVE_SYS_WAIT
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| 43 | #define _IO_HAVE_ST_BLKSIZE _G_HAVE_ST_BLKSIZE
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| 44 | #define _IO_BUFSIZ _G_BUFSIZ
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| 45 | #define _IO_va_list _G_va_list
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| 46 | #define _IO_wint_t _G_wint_t
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| 47 |
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| 48 | #ifdef _G_NEED_STDARG_H
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| 49 | /* This define avoids name pollution if we're using GNU stdarg.h */
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| 50 | # define __need___va_list
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| 51 | # include <stdarg.h>
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| 52 | # ifdef __GNUC_VA_LIST
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| 53 | # undef _IO_va_list
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| 54 | # define _IO_va_list __gnuc_va_list
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| 55 | # endif /* __GNUC_VA_LIST */
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| 56 | #endif
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| 57 |
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| 58 | #ifndef __THROW
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| 59 | # ifdef __cplusplus
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| 60 | # define __THROW throw ()
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| 61 | # else
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| 62 | # define __THROW
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| 63 | # endif
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| 64 | #endif /* not __THROW */
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| 65 |
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| 66 | #ifndef __P
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| 67 | # define __P(p) p __THROW
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| 68 | #endif /* not __P */
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| 69 |
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| 70 | #ifndef __PMT
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| 71 | # define __PMT(p) p
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| 72 | #endif /* not __PMT */
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| 73 |
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| 74 | /* For backward compatibility */
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| 75 | #ifndef _PARAMS
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| 76 | # define _PARAMS(protos) __P(protos)
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| 77 | #endif /*!_PARAMS*/
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| 78 |
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| 79 | #ifndef __STDC__
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| 80 | # ifndef const
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| 81 | # define const
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| 82 | # endif
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| 83 | #endif
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| 84 | #define _IO_UNIFIED_JUMPTABLES 1
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| 85 | #ifndef _G_HAVE_PRINTF_FP
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| 86 | # define _IO_USE_DTOA 1
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| 87 | #endif
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| 88 |
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| 89 | #ifndef EOF
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| 90 | # define EOF (-1)
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| 91 | #endif
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| 92 | #ifndef NULL
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| 93 | # if defined __GNUG__ && \
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| 94 | (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8))
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| 95 | # define NULL (__null)
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| 96 | # else
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| 97 | # if !defined(__cplusplus)
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| 98 | # define NULL ((void*)0)
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| 99 | # else
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| 100 | # define NULL (0)
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| 101 | # endif
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| 102 | # endif
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| 103 | #endif
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| 104 |
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| 105 | #define _IOS_INPUT 1
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| 106 | #define _IOS_OUTPUT 2
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| 107 | #define _IOS_ATEND 4
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| 108 | #define _IOS_APPEND 8
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| 109 | #define _IOS_TRUNC 16
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| 110 | #define _IOS_NOCREATE 32
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| 111 | #define _IOS_NOREPLACE 64
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| 112 | #define _IOS_BIN 128
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| 113 |
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| 114 | /* Magic numbers and bits for the _flags field.
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| 115 | The magic numbers use the high-order bits of _flags;
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| 116 | the remaining bits are available for variable flags.
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| 117 | Note: The magic numbers must all be negative if stdio
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| 118 | emulation is desired. */
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| 119 |
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| 120 | #define _IO_MAGIC 0xFBAD0000 /* Magic number */
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| 121 | #define _OLD_STDIO_MAGIC 0xFABC0000 /* Emulate old stdio. */
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| 122 | #define _IO_MAGIC_MASK 0xFFFF0000
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| 123 | #define _IO_USER_BUF 1 /* User owns buffer; don't delete it on close. */
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| 124 | #define _IO_UNBUFFERED 2
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| 125 | #define _IO_NO_READS 4 /* Reading not allowed */
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| 126 | #define _IO_NO_WRITES 8 /* Writing not allowd */
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| 127 | #define _IO_EOF_SEEN 0x10
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| 128 | #define _IO_ERR_SEEN 0x20
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| 129 | #define _IO_DELETE_DONT_CLOSE 0x40 /* Don't call close(_fileno) on cleanup. */
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| 130 | #define _IO_LINKED 0x80 /* Set if linked (using _chain) to streambuf::_list_all.*/
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| 131 | #define _IO_IN_BACKUP 0x100
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| 132 | #define _IO_LINE_BUF 0x200
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| 133 | #define _IO_TIED_PUT_GET 0x400 /* Set if put and get pointer logicly tied. */
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| 134 | #define _IO_CURRENTLY_PUTTING 0x800
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| 135 | #define _IO_IS_APPENDING 0x1000
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| 136 | #define _IO_IS_FILEBUF 0x2000
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| 137 | #define _IO_BAD_SEEN 0x4000
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| 138 | #define _IO_USER_LOCK 0x8000
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| 139 |
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| 140 | /* These are "formatting flags" matching the iostream fmtflags enum values. */
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| 141 | #define _IO_SKIPWS 01
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| 142 | #define _IO_LEFT 02
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| 143 | #define _IO_RIGHT 04
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| 144 | #define _IO_INTERNAL 010
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| 145 | #define _IO_DEC 020
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| 146 | #define _IO_OCT 040
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| 147 | #define _IO_HEX 0100
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| 148 | #define _IO_SHOWBASE 0200
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| 149 | #define _IO_SHOWPOINT 0400
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| 150 | #define _IO_UPPERCASE 01000
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| 151 | #define _IO_SHOWPOS 02000
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| 152 | #define _IO_SCIENTIFIC 04000
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| 153 | #define _IO_FIXED 010000
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| 154 | #define _IO_UNITBUF 020000
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| 155 | #define _IO_STDIO 040000
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| 156 | #define _IO_DONT_CLOSE 0100000
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| 157 | #define _IO_BOOLALPHA 0200000
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| 158 |
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| 159 |
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| 160 | struct _IO_jump_t; struct _IO_FILE;
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| 161 |
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| 162 | /* Handle lock. */
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| 163 | #ifdef _IO_MTSAFE_IO
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| 164 | # if defined __GLIBC__ && __GLIBC__ >= 2
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| 165 | # if __GLIBC_MINOR__ == 0
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| 166 | # include <stdio-lock.h>
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| 167 | # else
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| 168 | # include <bits/stdio-lock.h>
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| 169 | # endif
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| 170 | # else
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| 171 | /*# include <comthread.h>*/
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| 172 | # endif
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| 173 | #else
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| 174 | typedef void _IO_lock_t;
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| 175 | #endif
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| 176 |
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| 177 |
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| 178 | /* A streammarker remembers a position in a buffer. */
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| 179 |
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| 180 | struct _IO_marker {
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| 181 | struct _IO_marker *_next;
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| 182 | struct _IO_FILE *_sbuf;
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| 183 | /* If _pos >= 0
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| 184 | it points to _buf->Gbase()+_pos. FIXME comment */
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| 185 | /* if _pos < 0, it points to _buf->eBptr()+_pos. FIXME comment */
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| 186 | int _pos;
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| 187 | #if 0
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| 188 | void set_streampos(streampos sp) { _spos = sp; }
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| 189 | void set_offset(int offset) { _pos = offset; _spos = (streampos)(-2); }
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| 190 | public:
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| 191 | streammarker(streambuf *sb);
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| 192 | ~streammarker();
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| 193 | int saving() { return _spos == -2; }
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| 194 | int delta(streammarker&);
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| 195 | int delta();
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| 196 | #endif
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| 197 | };
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| 198 |
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| 199 | /* This is the structure from the libstdc++ codecvt class. */
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| 200 | enum __codecvt_result
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| 201 | {
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| 202 | __codecvt_ok,
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| 203 | __codecvt_partial,
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| 204 | __codecvt_error,
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| 205 | __codecvt_noconv
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| 206 | };
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| 207 |
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| 208 | #if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
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| 209 | /* The order of the elements in the following struct must match the order
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| 210 | of the virtual functions in the libstdc++ codecvt class. */
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| 211 | struct _IO_codecvt
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| 212 | {
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| 213 | void (*__codecvt_destr) (struct _IO_codecvt *);
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| 214 | enum __codecvt_result (*__codecvt_do_out) (struct _IO_codecvt *,
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| 215 | __c_mbstate_t *,
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| 216 | const wchar_t *,
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| 217 | const wchar_t *,
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| 218 | const wchar_t **, char *,
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| 219 | char *, char **);
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| 220 | enum __codecvt_result (*__codecvt_do_unshift) (struct _IO_codecvt *,
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| 221 | __c_mbstate_t *, char *,
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| 222 | char *, char **);
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| 223 | enum __codecvt_result (*__codecvt_do_in) (struct _IO_codecvt *,
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| 224 | __c_mbstate_t *,
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| 225 | const char *, const char *,
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| 226 | const char **, wchar_t *,
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| 227 | wchar_t *, wchar_t **);
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| 228 | int (*__codecvt_do_encoding) (struct _IO_codecvt *);
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| 229 | int (*__codecvt_do_always_noconv) (struct _IO_codecvt *);
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| 230 | int (*__codecvt_do_length) (struct _IO_codecvt *, __c_mbstate_t *,
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| 231 | const char *, const char *, _IO_size_t);
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| 232 | int (*__codecvt_do_max_length) (struct _IO_codecvt *);
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| 233 |
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| 234 | _IO_iconv_t __cd_in;
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| 235 | _IO_iconv_t __cd_out;
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| 236 | };
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| 237 |
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| 238 | /* Extra data for wide character streams. */
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| 239 | struct _IO_wide_data
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| 240 | {
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| 241 | wchar_t *_IO_read_ptr; /* Current read pointer */
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| 242 | wchar_t *_IO_read_end; /* End of get area. */
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| 243 | wchar_t *_IO_read_base; /* Start of putback+get area. */
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| 244 | wchar_t *_IO_write_base; /* Start of put area. */
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| 245 | wchar_t *_IO_write_ptr; /* Current put pointer. */
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| 246 | wchar_t *_IO_write_end; /* End of put area. */
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| 247 | wchar_t *_IO_buf_base; /* Start of reserve area. */
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| 248 | wchar_t *_IO_buf_end; /* End of reserve area. */
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| 249 | /* The following fields are used to support backing up and undo. */
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| 250 | wchar_t *_IO_save_base; /* Pointer to start of non-current get area. */
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| 251 | wchar_t *_IO_backup_base; /* Pointer to first valid character of
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| 252 | backup area */
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| 253 | wchar_t *_IO_save_end; /* Pointer to end of non-current get area. */
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| 254 |
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| 255 | #if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
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| 256 | __c_mbstate_t _IO_state;
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| 257 | __c_mbstate_t _IO_last_state;
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| 258 | #endif
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| 259 | struct _IO_codecvt _codecvt;
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| 260 |
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| 261 | wchar_t _shortbuf[1];
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| 262 |
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| 263 | #if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
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| 264 | struct _IO_jump_t *_wide_vtable;
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| 265 | #endif
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| 266 | };
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| 267 | #else /* !(defined _LIBC || defined _GLIBCPP_USE_WCHAR_T) */
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| 268 | /* Because _IO_no_init unconditionally takes a `_IO_wide_data*' as its
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| 269 | last parameter we must still define this type. We intentionally
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| 270 | leave it incomplete to prevent any use of this type when we are not
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| 271 | supporting wide characters. */
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| 272 | struct _IO_wide_data;
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| 273 | #endif /* !(defined _LIBC || defined _GLIBCPP_USE_WCHAR_T) */
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| 274 |
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| 275 | struct _IO_FILE {
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| 276 | int _flags; /* High-order word is _IO_MAGIC; rest is flags. */
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| 277 | #define _IO_file_flags _flags
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| 278 |
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| 279 | /* The following pointers correspond to the C++ streambuf protocol. */
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| 280 | /* Note: Tk uses the _IO_read_ptr and _IO_read_end fields directly. */
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| 281 | char* _IO_read_ptr; /* Current read pointer */
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| 282 | char* _IO_read_end; /* End of get area. */
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| 283 | char* _IO_read_base; /* Start of putback+get area. */
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| 284 | char* _IO_write_base; /* Start of put area. */
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| 285 | char* _IO_write_ptr; /* Current put pointer. */
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| 286 | char* _IO_write_end; /* End of put area. */
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| 287 | char* _IO_buf_base; /* Start of reserve area. */
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| 288 | char* _IO_buf_end; /* End of reserve area. */
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| 289 | /* The following fields are used to support backing up and undo. */
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| 290 | char *_IO_save_base; /* Pointer to start of non-current get area. */
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| 291 | char *_IO_backup_base; /* Pointer to first valid character of backup area */
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| 292 | char *_IO_save_end; /* Pointer to end of non-current get area. */
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| 293 |
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| 294 | struct _IO_marker *_markers;
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| 295 |
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| 296 | struct _IO_FILE *_chain;
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| 297 |
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| 298 | int _fileno;
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| 299 | int _blksize;
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| 300 | _IO_off_t _old_offset; /* This used to be _offset but it's too small. */
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| 301 |
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| 302 | #define __HAVE_COLUMN /* temporary */
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| 303 | /* 1+column number of pbase(); 0 is unknown. */
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| 304 | unsigned short _cur_column;
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| 305 | signed char _vtable_offset;
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| 306 | char _shortbuf[1];
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| 307 |
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| 308 | /* char* _save_gptr; char* _save_egptr; */
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| 309 |
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| 310 | _IO_lock_t *_lock;
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| 311 | #ifdef _IO_USE_OLD_IO_FILE
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| 312 | };
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| 313 |
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| 314 | struct _IO_FILE_complete
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| 315 | {
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| 316 | struct _IO_FILE _file;
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| 317 | #endif
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| 318 | #if defined _G_IO_IO_FILE_VERSION && _G_IO_IO_FILE_VERSION == 0x20001
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| 319 | _IO_off64_t _offset;
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| 320 | # if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
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| 321 | /* Wide character stream stuff. */
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| 322 | struct _IO_codecvt *_codecvt;
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| 323 | struct _IO_wide_data *_wide_data;
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| 324 | # else
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| 325 | void *__pad1;
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| 326 | void *__pad2;
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| 327 | # endif
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| 328 | int _mode;
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| 329 | /* Make sure we don't get into trouble again. */
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| 330 | char _unused2[15 * sizeof (int) - 2 * sizeof (void *)];
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| 331 | #endif
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| 332 | };
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| 333 |
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| 334 | #ifndef __cplusplus
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| 335 | typedef struct _IO_FILE _IO_FILE;
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| 336 | #endif
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| 337 |
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| 338 | struct _IO_FILE_plus;
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| 339 |
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| 340 | extern struct _IO_FILE_plus _IO_2_1_stdin_;
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| 341 | extern struct _IO_FILE_plus _IO_2_1_stdout_;
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| 342 | extern struct _IO_FILE_plus _IO_2_1_stderr_;
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| 343 | #ifndef _LIBC
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| 344 | #define _IO_stdin ((_IO_FILE*)(&_IO_2_1_stdin_))
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| 345 | #define _IO_stdout ((_IO_FILE*)(&_IO_2_1_stdout_))
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| 346 | #define _IO_stderr ((_IO_FILE*)(&_IO_2_1_stderr_))
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| 347 | #else
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| 348 | extern _IO_FILE *_IO_stdin;
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| 349 | extern _IO_FILE *_IO_stdout;
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| 350 | extern _IO_FILE *_IO_stderr;
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| 351 | #endif
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| 352 |
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| 353 |
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| 354 | /* Functions to do I/O and file management for a stream. */
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| 355 |
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| 356 | /* Read NBYTES bytes from COOKIE into a buffer pointed to by BUF.
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| 357 | Return number of bytes read. */
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| 358 | typedef __ssize_t __io_read_fn (void *__cookie, char *__buf, size_t __nbytes);
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| 359 |
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| 360 | /* Write N bytes pointed to by BUF to COOKIE. Write all N bytes
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| 361 | unless there is an error. Return number of bytes written, or -1 if
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| 362 | there is an error without writing anything. If the file has been
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| 363 | opened for append (__mode.__append set), then set the file pointer
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| 364 | to the end of the file and then do the write; if not, just write at
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| 365 | the current file pointer. */
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| 366 | typedef __ssize_t __io_write_fn (void *__cookie, __const char *__buf,
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| 367 | size_t __n);
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| 368 |
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| 369 | /* Move COOKIE's file position to *POS bytes from the
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| 370 | beginning of the file (if W is SEEK_SET),
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| 371 | the current position (if W is SEEK_CUR),
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| 372 | or the end of the file (if W is SEEK_END).
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| 373 | Set *POS to the new file position.
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| 374 | Returns zero if successful, nonzero if not. */
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| 375 | typedef int __io_seek_fn (void *__cookie, _IO_off64_t *__pos, int __w);
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| 376 |
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| 377 | /* Close COOKIE. */
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| 378 | typedef int __io_close_fn (void *__cookie);
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| 379 |
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| 380 |
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| 381 | #ifdef _GNU_SOURCE
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| 382 | /* User-visible names for the above. */
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| 383 | typedef __io_read_fn cookie_read_function_t;
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| 384 | typedef __io_write_fn cookie_write_function_t;
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| 385 | typedef __io_seek_fn cookie_seek_function_t;
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| 386 | typedef __io_close_fn cookie_close_function_t;
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| 387 |
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| 388 | /* The structure with the cookie function pointers. */
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| 389 | typedef struct
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| 390 | {
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| 391 | __io_read_fn *read; /* Read bytes. */
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| 392 | __io_write_fn *write; /* Write bytes. */
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| 393 | __io_seek_fn *seek; /* Seek/tell file position. */
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| 394 | __io_close_fn *close; /* Close file. */
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| 395 | } _IO_cookie_io_functions_t;
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| 396 | typedef _IO_cookie_io_functions_t cookie_io_functions_t;
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| 397 |
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| 398 | struct _IO_cookie_file;
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| 399 |
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| 400 | /* Initialize one of those. */
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| 401 | extern void _IO_cookie_init (struct _IO_cookie_file *__cfile, int __read_write,
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| 402 | void *__cookie, _IO_cookie_io_functions_t __fns);
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| 403 | #endif
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| 404 |
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| 405 |
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| 406 | #ifdef __cplusplus
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| 407 | extern "C" {
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| 408 | #endif
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| 409 |
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| 410 | extern int __underflow (_IO_FILE *) __THROW;
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| 411 | extern int __uflow (_IO_FILE *) __THROW;
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| 412 | extern int __overflow (_IO_FILE *, int) __THROW;
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| 413 | extern _IO_wint_t __wunderflow (_IO_FILE *) __THROW;
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| 414 | extern _IO_wint_t __wuflow (_IO_FILE *) __THROW;
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| 415 | extern _IO_wint_t __woverflow (_IO_FILE *, _IO_wint_t) __THROW;
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| 416 |
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| 417 | #define _IO_getc_unlocked(_fp) \
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| 418 | ((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end ? __uflow (_fp) \
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| 419 | : *(unsigned char *) (_fp)->_IO_read_ptr++)
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| 420 | #define _IO_peekc_unlocked(_fp) \
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| 421 | ((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end \
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| 422 | && __underflow (_fp) == EOF ? EOF \
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| 423 | : *(unsigned char *) (_fp)->_IO_read_ptr)
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| 424 | #define _IO_putc_unlocked(_ch, _fp) \
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| 425 | (((_fp)->_IO_write_ptr >= (_fp)->_IO_write_end) \
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| 426 | ? __overflow (_fp, (unsigned char) (_ch)) \
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| 427 | : (unsigned char) (*(_fp)->_IO_write_ptr++ = (_ch)))
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| 428 |
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| 429 | #define _IO_getwc_unlocked(_fp) \
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| 430 | ((_fp)->_wide_data->_IO_read_ptr >= (_fp)->_wide_data->_IO_read_end \
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| 431 | ? __wuflow (_fp) : (_IO_wint_t) *(_fp)->_wide_data->_IO_read_ptr++)
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| 432 | #define _IO_putwc_unlocked(_wch, _fp) \
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| 433 | ((_fp)->_wide_data->_IO_write_ptr >= (_fp)->_wide_data->_IO_write_end \
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| 434 | ? __woverflow (_fp, _wch) \
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| 435 | : (_IO_wint_t) (*(_fp)->_wide_data->_IO_write_ptr++ = (_wch)))
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| 436 |
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| 437 | #define _IO_feof_unlocked(__fp) (((__fp)->_flags & _IO_EOF_SEEN) != 0)
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| 438 | #define _IO_ferror_unlocked(__fp) (((__fp)->_flags & _IO_ERR_SEEN) != 0)
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| 439 |
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| 440 | extern int _IO_getc (_IO_FILE *__fp) __THROW;
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| 441 | extern int _IO_putc (int __c, _IO_FILE *__fp) __THROW;
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| 442 | extern int _IO_feof (_IO_FILE *__fp) __THROW;
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| 443 | extern int _IO_ferror (_IO_FILE *__fp) __THROW;
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| 444 |
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| 445 | extern int _IO_peekc_locked (_IO_FILE *__fp) __THROW;
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| 446 |
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| 447 | /* This one is for Emacs. */
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| 448 | #define _IO_PENDING_OUTPUT_COUNT(_fp) \
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| 449 | ((_fp)->_IO_write_ptr - (_fp)->_IO_write_base)
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| 450 |
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| 451 | extern void _IO_flockfile (_IO_FILE *) __THROW;
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| 452 | extern void _IO_funlockfile (_IO_FILE *) __THROW;
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| 453 | extern int _IO_ftrylockfile (_IO_FILE *) __THROW;
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| 454 |
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| 455 | #ifdef _IO_MTSAFE_IO
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| 456 | # define _IO_peekc(_fp) _IO_peekc_locked (_fp)
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| 457 | #else
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| 458 | # define _IO_peekc(_fp) _IO_peekc_unlocked (_fp)
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| 459 | # define _IO_flockfile(_fp) /**/
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| 460 | # define _IO_funlockfile(_fp) /**/
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| 461 | # define _IO_ftrylockfile(_fp) /**/
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| 462 | # define _IO_cleanup_region_start(_fct, _fp) /**/
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| 463 | # define _IO_cleanup_region_end(_Doit) /**/
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| 464 | #endif /* !_IO_MTSAFE_IO */
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| 465 |
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| 466 | extern int _IO_vfscanf (_IO_FILE * __restrict, const char * __restrict,
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| 467 | _IO_va_list, int *__restrict) __THROW;
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| 468 | extern int _IO_vfprintf (_IO_FILE *__restrict, const char *__restrict,
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| 469 | _IO_va_list) __THROW;
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| 470 | extern _IO_ssize_t _IO_padn (_IO_FILE *, int, _IO_ssize_t) __THROW;
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| 471 | extern _IO_size_t _IO_sgetn (_IO_FILE *, void *, _IO_size_t) __THROW;
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| 472 |
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| 473 | extern _IO_off64_t _IO_seekoff (_IO_FILE *, _IO_off64_t, int, int) __THROW;
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| 474 | extern _IO_off64_t _IO_seekpos (_IO_FILE *, _IO_off64_t, int) __THROW;
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| 475 |
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| 476 | extern void _IO_free_backup_area (_IO_FILE *) __THROW;
|
|---|
| 477 |
|
|---|
| 478 | #if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
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| 479 | extern _IO_wint_t _IO_getwc (_IO_FILE *__fp) __THROW;
|
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| 480 | extern _IO_wint_t _IO_putwc (wchar_t __wc, _IO_FILE *__fp) __THROW;
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|---|
| 481 | extern int _IO_fwide (_IO_FILE *__fp, int __mode) __THROW;
|
|---|
| 482 | # if __GNUC__ >= 2
|
|---|
| 483 | /* A special optimized version of the function above. It optimizes the
|
|---|
| 484 | case of initializing an unoriented byte stream. */
|
|---|
| 485 | # define _IO_fwide(__fp, __mode) \
|
|---|
| 486 | ({ int __result = (__mode); \
|
|---|
| 487 | if (__result < 0) \
|
|---|
| 488 | { \
|
|---|
| 489 | if ((__fp)->_mode == 0) \
|
|---|
| 490 | /* We know that all we have to do is to set the flag. */ \
|
|---|
| 491 | (__fp)->_mode = -1; \
|
|---|
| 492 | __result = (__fp)->_mode; \
|
|---|
| 493 | } \
|
|---|
| 494 | else \
|
|---|
| 495 | __result = _IO_fwide (__fp, __result); \
|
|---|
| 496 | __result; })
|
|---|
| 497 | # endif
|
|---|
| 498 |
|
|---|
| 499 | extern int _IO_vfwscanf (_IO_FILE * __restrict, const wchar_t * __restrict,
|
|---|
| 500 | _IO_va_list, int *__restrict) __THROW;
|
|---|
| 501 | extern int _IO_vfwprintf (_IO_FILE *__restrict, const wchar_t *__restrict,
|
|---|
| 502 | _IO_va_list) __THROW;
|
|---|
| 503 | extern _IO_ssize_t _IO_wpadn (_IO_FILE *, wint_t, _IO_ssize_t) __THROW;
|
|---|
| 504 | extern void _IO_free_wbackup_area (_IO_FILE *) __THROW;
|
|---|
| 505 | #endif
|
|---|
| 506 |
|
|---|
| 507 | #ifdef __cplusplus
|
|---|
| 508 | }
|
|---|
| 509 | #endif
|
|---|
| 510 |
|
|---|
| 511 | #endif /* _IO_STDIO_H */
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