abc/src/opt/cut/cutList.h

/**CFile****************************************************************

  FileName    [cutList.h]

  SystemName  [ABC: Logic synthesis and verification system.]

  PackageName [Implementation of layered listed list of cuts.]

  Synopsis    [External declarations.]

  Author      [Alan Mishchenko]
  
  Affiliation [UC Berkeley]

  Date        [Ver. 1.0. Started - June 20, 2005.]

  Revision    [$Id: cutList.h,v 1.00 2005/06/20 00:00:00 alanmi Exp $]

***********************************************************************/
 
#ifndef ABC__opt__cut__cutList_h
#define ABC__opt__cut__cutList_h


ABC_NAMESPACE_HEADER_START


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///                          INCLUDES                                ///
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///                         PARAMETERS                               ///
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///                         BASIC TYPES                              ///
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typedef struct Cut_ListStruct_t_         Cut_List_t;
struct Cut_ListStruct_t_
{
    Cut_Cut_t *  pHead[CUT_SIZE_MAX+1];
    Cut_Cut_t ** ppTail[CUT_SIZE_MAX+1];
};

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///                      MACRO DEFINITIONS                           ///
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////////////////////////////////////////////////////////////////////////
///                    FUNCTION DECLARATIONS                         ///
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/**Function*************************************************************

  Synopsis    [Start the cut list.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
static inline void Cut_ListStart( Cut_List_t * p )
{
    int i;
    for ( i = 1; i <= CUT_SIZE_MAX; i++ )
    {
        p->pHead[i] = 0;
        p->ppTail[i] = &p->pHead[i];
    }
}

/**Function*************************************************************

  Synopsis    [Adds one cut to the cut list.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
static inline void Cut_ListAdd( Cut_List_t * p, Cut_Cut_t * pCut )
{
    assert( pCut->nLeaves > 0 && pCut->nLeaves <= CUT_SIZE_MAX );
    *p->ppTail[pCut->nLeaves] = pCut;
    p->ppTail[pCut->nLeaves] = &pCut->pNext;
}

/**Function*************************************************************

  Synopsis    [Adds one cut to the cut list while preserving order.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
static inline void Cut_ListAdd2( Cut_List_t * p, Cut_Cut_t * pCut )
{
    extern int Cut_CutCompare( Cut_Cut_t * pCut1, Cut_Cut_t * pCut2 );
    Cut_Cut_t * pTemp, ** ppSpot;
    assert( pCut->nLeaves > 0 && pCut->nLeaves <= CUT_SIZE_MAX );
    if ( p->pHead[pCut->nLeaves] != NULL )
    {
        ppSpot = &p->pHead[pCut->nLeaves];
        for ( pTemp = p->pHead[pCut->nLeaves]; pTemp; pTemp = pTemp->pNext )
        {
            if ( Cut_CutCompare(pCut, pTemp) < 0 )
            {
                *ppSpot = pCut;
                pCut->pNext = pTemp;
                return;
            }
            else
                ppSpot = &pTemp->pNext;
        }
    }
    *p->ppTail[pCut->nLeaves] = pCut;
    p->ppTail[pCut->nLeaves] = &pCut->pNext;
}

/**Function*************************************************************

  Synopsis    [Derive the super list from the linked list of cuts.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
static inline void Cut_ListDerive( Cut_List_t * p, Cut_Cut_t * pList )
{
    Cut_Cut_t * pPrev;
    int nLeaves;
    Cut_ListStart( p );
    while ( pList != NULL )
    {
        nLeaves = pList->nLeaves;
        p->pHead[nLeaves] = pList;
        for ( pPrev = pList, pList = pList->pNext; pList; pPrev = pList, pList = pList->pNext )
            if ( nLeaves < (int)pList->nLeaves )
                break;
        p->ppTail[nLeaves] = &pPrev->pNext;
        pPrev->pNext = NULL;
    }
}

/**Function*************************************************************

  Synopsis    [Adds the second list to the first list.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
static inline void Cut_ListAddList( Cut_List_t * pOld, Cut_List_t * pNew )
{
    int i;
    for ( i = 1; i <= CUT_SIZE_MAX; i++ )
    {
        if ( pNew->pHead[i] == NULL )
            continue;
        *pOld->ppTail[i] = pNew->pHead[i];
        pOld->ppTail[i] = pNew->ppTail[i];
    }
}

/**Function*************************************************************

  Synopsis    [Returns the cut list linked into one sequence of cuts.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
static inline Cut_Cut_t * Cut_ListFinish( Cut_List_t * p )
{
    Cut_Cut_t * pHead = NULL, ** ppTail = &pHead;
    int i;
    for ( i = 1; i <= CUT_SIZE_MAX; i++ )
    {
        if ( p->pHead[i] == NULL )
            continue;
        *ppTail = p->pHead[i];
        ppTail = p->ppTail[i];
    }
    *ppTail = NULL;
    return pHead;
}



ABC_NAMESPACE_HEADER_END

#endif

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///                       END OF FILE                                ///
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