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-rw-r--r--src/misc/extra/extraUtilBitMatrix.c359
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diff --git a/src/misc/extra/extraUtilBitMatrix.c b/src/misc/extra/extraUtilBitMatrix.c
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+/**CFile****************************************************************
+
+ FileName [extraUtilBitMatrix.c]
+
+ PackageName [extra]
+
+ Synopsis [Various reusable software utilities.]
+
+ Author [Alan Mishchenko]
+
+ Affiliation [UC Berkeley]
+
+ Date [Ver. 1.0. Started - September 1, 2003.]
+
+ Revision [$Id: extraUtilBitMatrix.c,v 1.0 2003/09/01 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "extra.h"
+
+/*---------------------------------------------------------------------------*/
+/* Constant declarations */
+/*---------------------------------------------------------------------------*/
+
+/*---------------------------------------------------------------------------*/
+/* Stucture declarations */
+/*---------------------------------------------------------------------------*/
+
+struct Extra_BitMat_t_
+{
+ unsigned ** ppData;
+ int nSize;
+ int nWords;
+ int nBitShift;
+ unsigned uMask;
+ int nLookups;
+ int nInserts;
+ int nDeletes;
+};
+
+/*---------------------------------------------------------------------------*/
+/* Type declarations */
+/*---------------------------------------------------------------------------*/
+
+/*---------------------------------------------------------------------------*/
+/* Variable declarations */
+/*---------------------------------------------------------------------------*/
+
+/*---------------------------------------------------------------------------*/
+/* Macro declarations */
+/*---------------------------------------------------------------------------*/
+
+
+/**AutomaticStart*************************************************************/
+
+/*---------------------------------------------------------------------------*/
+/* Static function prototypes */
+/*---------------------------------------------------------------------------*/
+
+/**AutomaticEnd***************************************************************/
+
+
+/*---------------------------------------------------------------------------*/
+/* Definition of exported functions */
+/*---------------------------------------------------------------------------*/
+
+/**Function*************************************************************
+
+ Synopsis [Starts the bit matrix.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+Extra_BitMat_t * Extra_BitMatrixStart( int nSize )
+{
+ Extra_BitMat_t * p;
+ int i;
+ p = ALLOC( Extra_BitMat_t, 1 );
+ memset( p, 0, sizeof(Extra_BitMat_t) );
+ p->nSize = nSize;
+ p->nBitShift = (sizeof(unsigned) == 4) ? 5: 6;
+ p->uMask = (sizeof(unsigned) == 4) ? 31: 63;
+ p->nWords = nSize / (8 * sizeof(unsigned)) + ((nSize % (8 * sizeof(unsigned))) > 0);
+ p->ppData = ALLOC( unsigned *, nSize );
+ p->ppData[0] = ALLOC( unsigned, nSize * p->nWords );
+ memset( p->ppData[0], 0, sizeof(unsigned) * nSize * p->nWords );
+ for ( i = 1; i < nSize; i++ )
+ p->ppData[i] = p->ppData[i-1] + p->nWords;
+ return p;
+}
+
+/**Function*************************************************************
+
+ Synopsis [Stops the bit matrix.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Extra_BitMatrixClean( Extra_BitMat_t * p )
+{
+ memset( p->ppData[0], 0, sizeof(unsigned) * p->nSize * p->nWords );
+}
+
+/**Function*************************************************************
+
+ Synopsis [Stops the bit matrix.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Extra_BitMatrixStop( Extra_BitMat_t * p )
+{
+ FREE( p->ppData[0] );
+ FREE( p->ppData );
+ FREE( p );
+}
+
+/**Function*************************************************************
+
+ Synopsis [Prints the bit-matrix.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Extra_BitMatrixPrint( Extra_BitMat_t * pMat )
+{
+ int i, k, nVars;
+ printf( "\n" );
+ nVars = Extra_BitMatrixReadSize( pMat );
+ for ( i = 0; i < nVars; i++ )
+ {
+ for ( k = 0; k <= i; k++ )
+ printf( " " );
+ for ( k = i+1; k < nVars; k++ )
+ if ( Extra_BitMatrixLookup1( pMat, i, k ) )
+ printf( "1" );
+ else
+ printf( "." );
+ printf( "\n" );
+ }
+}
+
+
+/**Function*************************************************************
+
+ Synopsis [Reads the matrix size.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+int Extra_BitMatrixReadSize( Extra_BitMat_t * p )
+{
+ return p->nSize;
+}
+
+/**Function*************************************************************
+
+ Synopsis [Inserts the element into the upper part.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Extra_BitMatrixInsert1( Extra_BitMat_t * p, int i, int k )
+{
+ p->nInserts++;
+ if ( i < k )
+ p->ppData[i][k>>p->nBitShift] |= (1<<(k & p->uMask));
+ else
+ p->ppData[k][i>>p->nBitShift] |= (1<<(i & p->uMask));
+}
+
+/**Function*************************************************************
+
+ Synopsis [Inserts the element into the upper part.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+int Extra_BitMatrixLookup1( Extra_BitMat_t * p, int i, int k )
+{
+ p->nLookups++;
+ if ( i < k )
+ return ((p->ppData[i][k>>p->nBitShift] & (1<<(k & p->uMask))) > 0);
+ else
+ return ((p->ppData[k][i>>p->nBitShift] & (1<<(i & p->uMask))) > 0);
+}
+
+/**Function*************************************************************
+
+ Synopsis [Inserts the element into the upper part.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Extra_BitMatrixDelete1( Extra_BitMat_t * p, int i, int k )
+{
+ p->nDeletes++;
+ if ( i < k )
+ p->ppData[i][k>>p->nBitShift] &= ~(1<<(k & p->uMask));
+ else
+ p->ppData[k][i>>p->nBitShift] &= ~(1<<(i & p->uMask));
+}
+
+
+
+/**Function*************************************************************
+
+ Synopsis [Inserts the element into the upper part.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Extra_BitMatrixInsert2( Extra_BitMat_t * p, int i, int k )
+{
+ p->nInserts++;
+ if ( i > k )
+ p->ppData[i][k>>p->nBitShift] |= (1<<(k & p->uMask));
+ else
+ p->ppData[k][i>>p->nBitShift] |= (1<<(i & p->uMask));
+}
+
+/**Function*************************************************************
+
+ Synopsis [Inserts the element into the upper part.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+int Extra_BitMatrixLookup2( Extra_BitMat_t * p, int i, int k )
+{
+ p->nLookups++;
+ if ( i > k )
+ return ((p->ppData[i][k>>p->nBitShift] & (1<<(k & p->uMask))) > 0);
+ else
+ return ((p->ppData[k][i>>p->nBitShift] & (1<<(i & p->uMask))) > 0);
+}
+
+/**Function*************************************************************
+
+ Synopsis [Inserts the element into the upper part.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Extra_BitMatrixDelete2( Extra_BitMat_t * p, int i, int k )
+{
+ p->nDeletes++;
+ if ( i > k )
+ p->ppData[i][k>>p->nBitShift] &= ~(1<<(k & p->uMask));
+ else
+ p->ppData[k][i>>p->nBitShift] &= ~(1<<(i & p->uMask));
+}
+
+
+/**Function*************************************************************
+
+ Synopsis [Inserts the element into the upper part.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Extra_BitMatrixOr( Extra_BitMat_t * p, int i, unsigned * pInfo )
+{
+ int w;
+ for ( w = 0; w < p->nWords; w++ )
+ p->ppData[i][w] |= pInfo[w];
+}
+
+/**Function*************************************************************
+
+ Synopsis [Inserts the element into the upper part.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Extra_BitMatrixOrTwo( Extra_BitMat_t * p, int i, int j )
+{
+ int w;
+ for ( w = 0; w < p->nWords; w++ )
+ p->ppData[i][w] = p->ppData[j][w] = (p->ppData[i][w] | p->ppData[j][w]);
+}
+
+/**Function*************************************************************
+
+ Synopsis [Counts the number of 1's in the upper rectangle.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+int Extra_BitMatrixCountOnesUpper( Extra_BitMat_t * p )
+{
+ int i, k, nTotal = 0;
+ for ( i = 0; i < p->nSize; i++ )
+ for ( k = i + 1; k < p->nSize; k++ )
+ nTotal += ( (p->ppData[i][k/32] & (1 << (k%32))) > 0 );
+ return nTotal;
+}
+
+////////////////////////////////////////////////////////////////////////
+/// END OF FILE ///
+////////////////////////////////////////////////////////////////////////
+
+
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