libio.h
资源名称:Vc_STL.rar [点击查看]
上传用户:sichengcw
上传日期:2009-02-17
资源大小:202k
文件大小:10k
源码类别:
STL
开发平台:
Visual C++
- /* Copyright (C) 1991, 92, 93, 94, 95, 97 Free Software Foundation, Inc.
- This file is part of the GNU IO Library.
- Written by Per Bothner <bothner@cygnus.com>.
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2, or (at
- your option) any later version.
- This 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
- General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this library; see the file COPYING. If not, write to
- the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
- As a special exception, if you link this library with files
- compiled with a GNU compiler to produce an executable, this does
- not cause the resulting executable to be covered by the GNU General
- Public License. This exception does not however invalidate any
- other reasons why the executable file might be covered by the GNU
- General Public License. */
- #ifndef _IO_STDIO_H
- #define _IO_STDIO_H
- #include <_G_config.h>
- #define _IO_pos_t _G_fpos_t /* obsolete */
- #define _IO_fpos_t _G_fpos_t
- #define _IO_size_t _G_size_t
- #define _IO_ssize_t _G_ssize_t
- #define _IO_off_t _G_off_t
- #define _IO_pid_t _G_pid_t
- #define _IO_uid_t _G_uid_t
- #define _IO_HAVE_SYS_WAIT _G_HAVE_SYS_WAIT
- #define _IO_HAVE_ST_BLKSIZE _G_HAVE_ST_BLKSIZE
- #define _IO_BUFSIZ _G_BUFSIZ
- #define _IO_va_list _G_va_list
- #if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001
- #define _IO_fpos64_t _G_fpos64_t
- #define _IO_off64_t _G_off64_t
- #endif
- #ifdef _G_NEED_STDARG_H
- /* This define avoids name pollution if we're using GNU stdarg.h */
- # define __need___va_list
- # include <stdarg.h>
- # ifdef __GNUC_VA_LIST
- # undef _IO_va_list
- # define _IO_va_list __gnuc_va_list
- # endif /* __GNUC_VA_LIST */
- #endif
- #ifndef __P
- # if _G_HAVE_SYS_CDEFS
- # include <sys/cdefs.h>
- # else
- # ifdef __STDC__
- # define __P(p) p
- # else
- # define __P(p) ()
- # endif
- # endif
- #endif /*!__P*/
- /* For backward compatibility */
- #ifndef _PARAMS
- # define _PARAMS(protos) __P(protos)
- #endif /*!_PARAMS*/
- #ifndef __STDC__
- # define const
- #endif
- #define _IO_UNIFIED_JUMPTABLES 1
- #if !_G_HAVE_PRINTF_FP
- # define _IO_USE_DTOA 1
- #endif
- #ifndef EOF
- # define EOF (-1)
- #endif
- #ifndef NULL
- # if defined __GNUG__ &&
- (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8))
- # define NULL (__null)
- # else
- # if !defined(__cplusplus)
- # define NULL ((void*)0)
- # else
- # define NULL (0)
- # endif
- # endif
- #endif
- #define _IOS_INPUT 1
- #define _IOS_OUTPUT 2
- #define _IOS_ATEND 4
- #define _IOS_APPEND 8
- #define _IOS_TRUNC 16
- #define _IOS_NOCREATE 32
- #define _IOS_NOREPLACE 64
- #define _IOS_BIN 128
- /* Magic numbers and bits for the _flags field.
- The magic numbers use the high-order bits of _flags;
- the remaining bits are available for variable flags.
- Note: The magic numbers must all be negative if stdio
- emulation is desired. */
- #define _IO_MAGIC 0xFBAD0000 /* Magic number */
- #define _OLD_STDIO_MAGIC 0xFABC0000 /* Emulate old stdio. */
- #define _IO_MAGIC_MASK 0xFFFF0000
- #define _IO_USER_BUF 1 /* User owns buffer; don't delete it on close. */
- #define _IO_UNBUFFERED 2
- #define _IO_NO_READS 4 /* Reading not allowed */
- #define _IO_NO_WRITES 8 /* Writing not allowd */
- #define _IO_EOF_SEEN 0x10
- #define _IO_ERR_SEEN 0x20
- #define _IO_DELETE_DONT_CLOSE 0x40 /* Don't call close(_fileno) on cleanup. */
- #define _IO_LINKED 0x80 /* Set if linked (using _chain) to streambuf::_list_all.*/
- #define _IO_IN_BACKUP 0x100
- #define _IO_LINE_BUF 0x200
- #define _IO_TIED_PUT_GET 0x400 /* Set if put and get pointer logicly tied. */
- #define _IO_CURRENTLY_PUTTING 0x800
- #define _IO_IS_APPENDING 0x1000
- #define _IO_IS_FILEBUF 0x2000
- #define _IO_BAD_SEEN 0x4000
- /* These are "formatting flags" matching the iostream fmtflags enum values. */
- #define _IO_SKIPWS 01
- #define _IO_LEFT 02
- #define _IO_RIGHT 04
- #define _IO_INTERNAL 010
- #define _IO_DEC 020
- #define _IO_OCT 040
- #define _IO_HEX 0100
- #define _IO_SHOWBASE 0200
- #define _IO_SHOWPOINT 0400
- #define _IO_UPPERCASE 01000
- #define _IO_SHOWPOS 02000
- #define _IO_SCIENTIFIC 04000
- #define _IO_FIXED 010000
- #define _IO_UNITBUF 020000
- #define _IO_STDIO 040000
- #define _IO_DONT_CLOSE 0100000
- #define _IO_BOOLALPHA 0200000
- struct _IO_jump_t; struct _IO_FILE;
- /* Handle lock. */
- #ifdef _IO_MTSAFE_IO
- # if defined __GLIBC__ && __GLIBC__ >= 2
- # if __GLIBC_MINOR__ > 0
- # include <bits/stdio-lock.h>
- # else
- # include <stdio-lock.h>
- # endif
- # define _IO_LOCK_T _IO_lock_t *
- # else
- /*# include <comthread.h>*/
- # endif
- #else
- # if defined(__GLIBC__) && __GLIBC__ >= 2
- typedef void _IO_lock_t;
- # define _IO_LOCK_T void *
- # else
- # ifdef __linux__
- struct _IO_lock_t { void *ptr; short int field1; short int field2; };
- # define _IO_LOCK_T struct _IO_lock_t
- # else
- typedef void _IO_lock_t;
- # endif
- # endif
- #endif
- /* A streammarker remembers a position in a buffer. */
- struct _IO_marker {
- struct _IO_marker *_next;
- struct _IO_FILE *_sbuf;
- /* If _pos >= 0
- it points to _buf->Gbase()+_pos. FIXME comment */
- /* if _pos < 0, it points to _buf->eBptr()+_pos. FIXME comment */
- int _pos;
- #if 0
- void set_streampos(streampos sp) { _spos = sp; }
- void set_offset(int offset) { _pos = offset; _spos = (streampos)(-2); }
- public:
- streammarker(streambuf *sb);
- ~streammarker();
- int saving() { return _spos == -2; }
- int delta(streammarker&);
- int delta();
- #endif
- };
- struct _IO_FILE {
- int _flags; /* High-order word is _IO_MAGIC; rest is flags. */
- #define _IO_file_flags _flags
- /* The following pointers correspond to the C++ streambuf protocol. */
- /* Note: Tk uses the _IO_read_ptr and _IO_read_end fields directly. */
- 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 _blksize;
- #ifdef _G_IO_IO_FILE_VERSION
- _IO_off_t _old_offset;
- #else
- _IO_off_t _offset;
- #endif
- #define __HAVE_COLUMN /* temporary */
- /* 1+column number of pbase(); 0 is unknown. */
- unsigned short _cur_column;
- char _unused;
- char _shortbuf[1];
- /* char* _save_gptr; char* _save_egptr; */
- #ifdef _IO_LOCK_T
- _IO_LOCK_T _lock;
- #endif
- #if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001
- _IO_off64_t _offset;
- int _unused2[16]; /* Make sure we don't get into trouble again. */
- #endif
- };
- #ifndef __cplusplus
- typedef struct _IO_FILE _IO_FILE;
- #endif
- #if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001
- #define _IO_stdin_ _IO_2_1_stdin_
- #define _IO_stdout_ _IO_2_1_stdout_
- #define _IO_stderr_ _IO_2_1_stderr_
- #endif
- struct _IO_FILE_plus;
- extern struct _IO_FILE_plus _IO_stdin_, _IO_stdout_, _IO_stderr_;
- #define _IO_stdin ((_IO_FILE*)(&_IO_stdin_))
- #define _IO_stdout ((_IO_FILE*)(&_IO_stdout_))
- #define _IO_stderr ((_IO_FILE*)(&_IO_stderr_))
- /* Define the user-visible type, with user-friendly member names. */
- typedef struct
- {
- _IO_ssize_t (*read) __P ((struct _IO_FILE *, void *, _IO_ssize_t));
- _IO_ssize_t (*write) __P ((struct _IO_FILE *, const void *, _IO_ssize_t));
- _IO_fpos_t (*seek) __P ((struct _IO_FILE *, _IO_off_t, int));
- int (*close) __P ((struct _IO_FILE *));
- } _IO_cookie_io_functions_t;
- /* Special file type for fopencookie function. */
- struct _IO_cookie_file
- {
- struct _IO_FILE file;
- const void *vtable;
- void *cookie;
- _IO_cookie_io_functions_t io_functions;
- };
- #ifdef __cplusplus
- extern "C" {
- #endif
- extern int __underflow __P ((_IO_FILE *));
- extern int __uflow __P ((_IO_FILE *));
- extern int __overflow __P ((_IO_FILE *, int));
- #define _IO_getc_unlocked(_fp)
- ((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end ? __uflow (_fp)
- : *(unsigned char *) (_fp)->_IO_read_ptr++)
- #define _IO_peekc_unlocked(_fp)
- ((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end
- && __underflow (_fp) == EOF ? EOF
- : *(unsigned char *) (_fp)->_IO_read_ptr)
- #define _IO_putc_unlocked(_ch, _fp)
- (((_fp)->_IO_write_ptr >= (_fp)->_IO_write_end)
- ? __overflow (_fp, (unsigned char) (_ch))
- : (unsigned char) (*(_fp)->_IO_write_ptr++ = (_ch)))
- #define _IO_feof_unlocked(__fp) (((__fp)->_flags & _IO_EOF_SEEN) != 0)
- #define _IO_ferror_unlocked(__fp) (((__fp)->_flags & _IO_ERR_SEEN) != 0)
- extern int _IO_getc __P ((_IO_FILE *__fp));
- extern int _IO_putc __P ((int __c, _IO_FILE *__fp));
- extern int _IO_feof __P ((_IO_FILE *__fp));
- extern int _IO_ferror __P ((_IO_FILE *__fp));
- extern int _IO_peekc_locked __P ((_IO_FILE *__fp));
- /* This one is for Emacs. */
- #define _IO_PENDING_OUTPUT_COUNT(_fp)
- ((_fp)->_IO_write_ptr - (_fp)->_IO_write_base)
- extern void _IO_flockfile __P ((_IO_FILE *));
- extern void _IO_funlockfile __P ((_IO_FILE *));
- extern int _IO_ftrylockfile __P ((_IO_FILE *));
- #ifdef _IO_MTSAFE_IO
- # define _IO_peekc(_fp) _IO_peekc_locked (_fp)
- #else
- # define _IO_peekc(_fp) _IO_peekc_unlocked (_fp)
- # define _IO_flockfile(_fp) /**/
- # define _IO_funlockfile(_fp) /**/
- # define _IO_ftrylockfile(_fp) /**/
- # define _IO_cleanup_region_start(_fct, _fp) /**/
- # define _IO_cleanup_region_end(_Doit) /**/
- #endif /* !_IO_MTSAFE_IO */
- extern int _IO_vfscanf __P ((_IO_FILE *, const char *, _IO_va_list, int *));
- extern int _IO_vfprintf __P ((_IO_FILE *, const char *, _IO_va_list));
- extern _IO_ssize_t _IO_padn __P ((_IO_FILE *, int, _IO_ssize_t));
- extern _IO_size_t _IO_sgetn __P ((_IO_FILE *, void *, _IO_size_t));
- #if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001
- extern _IO_fpos64_t _IO_seekoff __P ((_IO_FILE *, _IO_off64_t, int, int));
- extern _IO_fpos64_t _IO_seekpos __P ((_IO_FILE *, _IO_fpos64_t, int));
- #else
- extern _IO_fpos_t _IO_seekoff __P ((_IO_FILE *, _IO_off_t, int, int));
- extern _IO_fpos_t _IO_seekpos __P ((_IO_FILE *, _IO_fpos_t, int));
- #endif
- extern void _IO_free_backup_area __P ((_IO_FILE *));
- #ifdef __cplusplus
- }
- #endif
- #endif /* _IO_STDIO_H */