/****************************************************************************
*
*                            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:  Perform runtime file handle checks.
*
****************************************************************************/


#ifndef _RTCHECK_H_INCLUDED
#define _RTCHECK_H_INCLUDED

#include "variety.h"
#include <errno.h>
#include "seterrno.h"


#if ( defined(__NT__) || defined(__RUNTIME_HANDLE_CHECKS__) )   \
    && ( !defined(__NETWARE__) && !defined(__UNIX__)            \
    && !defined(__OSI__) )

    extern unsigned __NFiles;

    #define __handle_check( __h, __r )                          \
                    if( (__h) < 0  ||  (__h) > __NFiles ) {     \
                        __set_errno( EBADF );                   \
                        return( __r );                          \
                    }

#else

    #define __handle_check( __h, __r )

#endif


#endif

