/****************************************************************************
*
*                            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
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*    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
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*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
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*
* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
*
****************************************************************************/


#include "variety.h"
#include <mbstring.h>
#include <stdio.h>
#include <wchar.h>



/****
***** Determine if 'c' corresponds to a member of the extended character set
***** whose multibyte representation is as a single byte when in the initial
***** shift state.  Returns the single byte representation if appropriate,
***** or EOF otherwise.
****/

_WCRTLINK int wctob( wint_t c )
{
    char                mbc[MB_LEN_MAX+1];

    if( wctomb( mbc, c ) == -1 )  return( EOF );
    if( _mbclen( mbc ) == 1 )
        return( mbc[0] );
    else
        return( EOF );
}
