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types.h

/*      Copyright (C) 2000, 2001, 2002, 2003, 2004 Stijn van Dongen
 *
 * This file is part of MCL.  You can redistribute and/or modify MCL under the
 * terms of the GNU General Public License; either version 2 of the License or
 * (at your option) any later version.  You should have received a copy of the
 * GPL along with MCL, in the file COPYING.
*/

#ifndef types_h
#define types_h

#include "inttypes.h"

typedef unsigned long mcxbits  ;
typedef unsigned long mcxmode  ;
typedef unsigned long mcxenum  ;
         /* mcxstatus   defined below */
         /* mcxbool     defined below */

#define BIT_ON(var, bit)   var |= bit
#define BIT_OFF(var, bit)  var |= bit, var ^= bit

/*  **************************************************************************
 * *
 **            Implementation notes (a few).
 *
 *
 *  The intent is that routines that return mcxstatus can define their own
 *  values, so one must check the interface of a given routine as to what kind
 *  of symbolic values it may return.
 *
 *  For example, the opt library defines MCX_OPT_OK, MCX_OPT_NOARG, and
 *  MCX_OPT_UNKNOWN.
 *
 *  The intent is also that the OK value is always defined as zero -- it's
 *  not the zero that counts but the fact that all OK values (e.g. STATUS_OK,
 *  MCX_OPT_OK etc) are equal. One should be able to count on this.
 *  If multiple ok values are possible, use one of mcxenum, mcxbits, mcxmode.
 *
*/

typedef enum
{  STATUS_OK      =  0
,  STATUS_FAIL
,  STATUS_DONE             /* for iterator type interfaces (e.g. readLine) */
,  STATUS_NOMEM
,  STATUS_UNUSED           /* use this as lower bound for new statuses     */
}  mcxstatus         ;



#ifndef FALSE
   typedef enum
   {  FALSE       =  0
   ,  TRUE        =  1
   }  mcxbool        ;
#else
   typedef int mcxbool ;
#endif

typedef enum
{  RETURN_ON_FAIL =  1960
,  EXIT_ON_FAIL
,  SLEEP_ON_FAIL
}  mcxOnFail         ;


#define  MCX_DATUM_THREADING  1
#define  MCX_DATUM_FIND       2
#define  MCX_DATUM_INSERT     4
#define  MCX_DATUM_DELETE     8

#endif


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