kolibrios-gitea/programs/develop/open watcom/trunk/clib/h/orient.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: Macro to deal with stream orientation.
*
****************************************************************************/
#ifdef __NETWARE__
/* One less thing to worry about */
#define ORIENT_STREAM(stream,error_return)
#else
#ifdef __WIDECHAR__
#define ORIENT_STREAM(stream,error_return) \
if( _FP_ORIENTATION(stream) != _WIDE_ORIENTED ) { \
if( _FP_ORIENTATION(stream) == _NOT_ORIENTED ) { \
_FP_ORIENTATION(stream) = _WIDE_ORIENTED; \
} else { \
_ReleaseFile( stream ); \
return( error_return ); \
} \
}
#else
#define ORIENT_STREAM(stream,error_return) \
if( _FP_ORIENTATION(stream) != _BYTE_ORIENTED ) { \
if( _FP_ORIENTATION(stream) == _NOT_ORIENTED ) { \
_FP_ORIENTATION(stream) = _BYTE_ORIENTED; \
} else { \
_ReleaseFile( stream ); \
return( error_return ); \
} \
}
#endif
#endif