NuSMV/code/nusmv/core/enc/bool/BitValues.h

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/* ---------------------------------------------------------------------------


  This file is part of the ``enc.bool'' package of NuSMV version 2. 
  Copyright (C) 2008 by FBK-irst. 

  NuSMV version 2 is free software; you can redistribute it and/or 
  modify it under the terms of the GNU Lesser General Public 
  License as published by the Free Software Foundation; either 
  version 2 of the License, or (at your option) any later version.

  NuSMV version 2 is distributed in the hope that it will be useful, 
  but WITHOUT ANY WARRANTY; without even the implied warranty of 
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public 
  License along with this library; if not, write to the Free Software 
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA.

  For more information on NuSMV see <http://nusmv.fbk.eu>
  or email to <nusmv-users@fbk.eu>.
  Please report bugs to <nusmv-users@fbk.eu>.

  To contact the NuSMV development board, email to <nusmv@fbk.eu>. 

-----------------------------------------------------------------------------*/

#ifndef __NUSMV_CORE_ENC_BOOL_BIT_VALUES_H__
#define __NUSMV_CORE_ENC_BOOL_BIT_VALUES_H__

#include "nusmv/core/node/node.h"
#include "nusmv/core/utils/utils.h" 
#include "nusmv/core/utils/NodeList.h"

typedef struct BitValues_TAG*  BitValues_ptr;


typedef enum BitValue_TAG { 
  BIT_VALUE_FALSE,
  BIT_VALUE_TRUE,
  BIT_VALUE_DONTCARE,
} BitValue;

#define BIT_VALUES(self) \
         ((BitValues_ptr) self)

#define BIT_VALUES_CHECK_INSTANCE(self) \
         (nusmv_assert(BIT_VALUES(self) != BIT_VALUES(NULL)))



struct BoolEnc_TAG; /* a forward declaration */

/*---------------------------------------------------------------------------*/
/* Function prototypes                                                       */
/*---------------------------------------------------------------------------*/

BitValues_ptr 
BitValues_create(struct BoolEnc_TAG* enc, node_ptr var);

void BitValues_destroy(BitValues_ptr self);

node_ptr BitValues_get_scalar_var(const BitValues_ptr self);

size_t BitValues_get_size(const BitValues_ptr self);

NodeList_ptr BitValues_get_bits(const BitValues_ptr self);

void BitValues_reset(BitValues_ptr self);

BitValue BitValues_get(const BitValues_ptr self, size_t index);

BitValue 
BitValues_get_value_from_expr(const BitValues_ptr self, node_ptr expr);

void BitValues_set(BitValues_ptr self, 
                          size_t index, BitValue val);

void BitValues_set_from_expr(BitValues_ptr self, 
                                    size_t index, node_ptr expr);

void BitValues_set_from_values_list(BitValues_ptr self, 
                                           struct BoolEnc_TAG* enc,
                                           node_ptr vals);

#endif /* __NUSMV_CORE_ENC_BOOL_BIT_VALUES_H__ */

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