dos_compilers/Borland Turbo C v1/FCNTL.H
2024-07-01 13:08:21 -07:00

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/* fcntl.h
Define flag values accessible to open.
Copyright (c) Borland International 1987
All Rights Reserved.
*/
#if __STDC__
#define _Cdecl
#else
#define _Cdecl cdecl
#endif
extern unsigned _Cdecl _fmode;
/* The first three can only be set by open */
#define O_RDONLY 1
#define O_WRONLY 2
#define O_RDWR 4
/* Flag values for open only */
#define O_CREAT 0x0100 /* create and open file */
#define O_TRUNC 0x0200 /* open with truncation */
#define O_EXCL 0x0400 /* exclusive open */
#define O_APPEND 0x0800 /* to end of file */
/* MSDOS special bits */
#define O_CHANGED 0x1000 /* user may read these bits, but */
#define O_DEVICE 0x2000 /* only RTL\io functions may touch. */
#define O_TEXT 0x4000 /* CR-LF translation */
#define O_BINARY 0x8000 /* no translation */
/* DOS 3.x options */
#define O_NOINHERIT 0x80
#define O_DENYALL 0x10
#define O_DENYWRITE 0x20
#define O_DENYREAD 0x30
#define O_DENYNONE 0x40