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Tricks of the Windows Gam…ming Gurus (2nd Edition)
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Disc2.iso
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vc98
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crt
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src
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file2.h
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C/C++ Source or Header
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1998-06-17
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2KB
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63 lines
/***
*file2.h - auxiliary file structure used internally by file run-time routines
*
* Copyright (c) 1985-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
* This file defines the auxiliary file structure used internally by
* the file run time routines.
*
* [Internal]
*
****/
#if _MSC_VER > 1000
#pragma once
#endif /* _MSC_VER > 1000 */
#ifndef _INC_FILE2
#define _INC_FILE2
#ifndef _CRTBLD
/*
* This is an internal C runtime header file. It is used when building
* the C runtimes only. It is not to be used as a public header file.
*/
#error ERROR: Use of C runtime library internal header file.
#endif /* _CRTBLD */
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* Additional _iobuf[]._flag values
*
* _IOSETVBUF - Indicates file was buffered via a setvbuf (or setbuf call).
* Currently used ONLY in _filbuf.c, _getbuf.c, fseek.c and
* setvbuf.c, to disable buffer resizing on "random access"
* files if the buffer was user-installed.
*/
#define _IOYOURBUF 0x0100
#define _IOSETVBUF 0x0400
#define _IOFEOF 0x0800
#define _IOFLRTN 0x1000
#define _IOCTRLZ 0x2000
#define _IOCOMMIT 0x4000
/* General use macros */
#define inuse(s) ((s)->_flag & (_IOREAD|_IOWRT|_IORW))
#define mbuf(s) ((s)->_flag & _IOMYBUF)
#define nbuf(s) ((s)->_flag & _IONBF)
#define ybuf(s) ((s)->_flag & _IOYOURBUF)
#define bigbuf(s) ((s)->_flag & (_IOMYBUF|_IOYOURBUF))
#define anybuf(s) ((s)->_flag & (_IOMYBUF|_IONBF|_IOYOURBUF))
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _INC_FILE2 */