Version abc50809

1 files changed, 359 insertions, 0 deletions

diff --git a/src/misc/extra/extraUtilBitMatrix.c b/src/misc/extra/extraUtilBitMatrix.c
new file mode 100644
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+++ 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                                ///
+////////////////////////////////////////////////////////////////////////
+
+