kolibrios/programs/develop/open watcom/trunk/clib/h/errorno.h

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/****************************************************************************
*
* Open Watcom Project
*
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
* ========================================================================
*
* This file contains Original Code and/or Modifications of Original
* Code as defined in and that are subject to the Sybase Open Watcom
* Public License version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
* provided with the Original Code and Modifications, and is also
* available at www.sybase.com/developer/opensource.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
* NON-INFRINGEMENT. Please see the License for the specific language
* governing rights and limitations under the License.
*
* ========================================================================
*
* Description: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
* DESCRIBE IT HERE!
*
****************************************************************************/
#if defined(__OS2__) || defined(__NT__)
#if defined(__SW_BM)
#include "thread.h"
#define _ERRNO (__THREADDATAPTR->__errnoP)
#define _DOSERRNO (__THREADDATAPTR->__doserrnoP)
#else
#define _ERRNO errno
#define _DOSERRNO _doserrno
#endif
#else
// QNX errno is magically multithread aware
// What does NETWARE do?
#if !defined (_NETWARE_LIBC)
#define _ERRNO errno
#else
extern int * ___errno(void);
#define _ERRNO *___errno() /* get LibC errno */
#endif
#ifndef __NETWARE__
#define _DOSERRNO _doserrno
#endif
#endif