src/cuBdd/cuddZddMisc.c File Reference

#include <math.h>
#include "util.h"
#include "cuddInt.h"
Include dependency graph for cuddZddMisc.c:

Go to the source code of this file.

Functions

static int cuddZddDagInt (DdNode *n, st_table *tab)
int Cudd_zddDagSize (DdNode *p_node)
double Cudd_zddCountMinterm (DdManager *zdd, DdNode *node, int path)
void Cudd_zddPrintSubtable (DdManager *table)

Variables

static char rcsid[] DD_UNUSED = "$Id: cuddZddMisc.c,v 1.17 2009/03/08 02:49:02 fabio Exp $"

Function Documentation

double Cudd_zddCountMinterm ( DdManager *  zdd,
DdNode *  node,
int  path 
)

Function********************************************************************

Synopsis [Counts the number of minterms of a ZDD.]

Description [Counts the number of minterms of the ZDD rooted at node. This procedure takes a parameter path that specifies how many variables are in the support of the function. If the procedure runs out of memory, it returns (double) CUDD_OUT_OF_MEM.]

SideEffects [None]

SeeAlso [Cudd_zddCountDouble]

Definition at line 154 of file cuddZddMisc.c.

00158 {
00159     double      dc_var, minterms;
00160 
00161     dc_var = (double)((double)(zdd->sizeZ) - (double)path);
00162     minterms = Cudd_zddCountDouble(zdd, node) / pow(2.0, dc_var);
00163     return(minterms);
00164 
00165 } /* end of Cudd_zddCountMinterm */

int Cudd_zddDagSize ( DdNode *  p_node  ) 

AutomaticEnd Function********************************************************************

Synopsis [Counts the number of nodes in a ZDD.]

Description [Counts the number of nodes in a ZDD. This function duplicates Cudd_DagSize and is only retained for compatibility.]

SideEffects [None]

SeeAlso [Cudd_DagSize]

Definition at line 123 of file cuddZddMisc.c.

00125 {
00126 
00127     int         i;
00128     st_table    *table;
00129 
00130     table = st_init_table(st_ptrcmp, st_ptrhash);
00131     i = cuddZddDagInt(p_node, table);
00132     st_free_table(table);
00133     return(i);
00134 
00135 } /* end of Cudd_zddDagSize */

void Cudd_zddPrintSubtable ( DdManager *  table  ) 

Function********************************************************************

Synopsis [Prints the ZDD table.]

Description [Prints the ZDD table for debugging purposes.]

SideEffects [None]

SeeAlso []

Definition at line 180 of file cuddZddMisc.c.

00182 {
00183     int         i, j;
00184     DdNode      *z1, *z1_next, *base;
00185     DdSubtable  *ZSubTable;
00186 
00187     base = table->one;
00188     for (i = table->sizeZ - 1; i >= 0; i--) {
00189         ZSubTable = &(table->subtableZ[i]);
00190         printf("subtable[%d]:\n", i);
00191         for (j = ZSubTable->slots - 1; j >= 0; j--) {
00192             z1 = ZSubTable->nodelist[j];
00193             while (z1 != NIL(DdNode)) {
00194                 (void) fprintf(table->out,
00195 #if SIZEOF_VOID_P == 8
00196                     "ID = 0x%lx\tindex = %u\tr = %u\t",
00197                     (ptruint) z1 / (ptruint) sizeof(DdNode),
00198                     z1->index, z1->ref);
00199 #else
00200                     "ID = 0x%x\tindex = %hu\tr = %hu\t",
00201                     (ptruint) z1 / (ptruint) sizeof(DdNode),
00202                     z1->index, z1->ref);
00203 #endif
00204                 z1_next = cuddT(z1);
00205                 if (Cudd_IsConstant(z1_next)) {
00206                     (void) fprintf(table->out, "T = %d\t\t",
00207                         (z1_next == base));
00208                 }
00209                 else {
00210 #if SIZEOF_VOID_P == 8
00211                     (void) fprintf(table->out, "T = 0x%lx\t",
00212                         (ptruint) z1_next / (ptruint) sizeof(DdNode));
00213 #else
00214                     (void) fprintf(table->out, "T = 0x%x\t",
00215                         (ptruint) z1_next / (ptruint) sizeof(DdNode));
00216 #endif
00217                 }
00218                 z1_next = cuddE(z1);
00219                 if (Cudd_IsConstant(z1_next)) {
00220                     (void) fprintf(table->out, "E = %d\n",
00221                         (z1_next == base));
00222                 }
00223                 else {
00224 #if SIZEOF_VOID_P == 8
00225                     (void) fprintf(table->out, "E = 0x%lx\n",
00226                         (ptruint) z1_next / (ptruint) sizeof(DdNode));
00227 #else
00228                     (void) fprintf(table->out, "E = 0x%x\n",
00229                         (ptruint) z1_next / (ptruint) sizeof(DdNode));
00230 #endif
00231                 }
00232 
00233                 z1_next = z1->next;
00234                 z1 = z1_next;
00235             }
00236         }
00237     }
00238     putchar('\n');
00239 
00240 } /* Cudd_zddPrintSubtable */

static int cuddZddDagInt ( DdNode *  n,
st_table *  tab 
) [static]

AutomaticStart

Function********************************************************************

Synopsis [Performs the recursive step of Cudd_zddDagSize.]

Description [Performs the recursive step of Cudd_zddDagSize. Does not check for out-of-memory conditions.]

SideEffects [None]

SeeAlso []

Definition at line 261 of file cuddZddMisc.c.

00264 {
00265     if (n == NIL(DdNode))
00266         return(0);
00267 
00268     if (st_is_member(tab, (char *)n) == 1)
00269         return(0);
00270 
00271     if (Cudd_IsConstant(n))
00272         return(0);
00273 
00274     (void)st_insert(tab, (char *)n, NIL(char));
00275     return(1 + cuddZddDagInt(cuddT(n), tab) +
00276         cuddZddDagInt(cuddE(n), tab));
00277 
00278 } /* cuddZddDagInt */

Variable Documentation

char rcsid [] DD_UNUSED = "$Id: cuddZddMisc.c,v 1.17 2009/03/08 02:49:02 fabio Exp $" [static]

CFile***********************************************************************

FileName [cuddZddMisc.c]

PackageName [cudd]

Synopsis [Miscellaneous utility functions for ZDDs.]

Description [External procedures included in this module:

Internal procedures included in this module:

procedures included in this module:

]

SeeAlso []

Author [Hyong-Kyoon Shin, In-Ho Moon]

Copyright [Copyright (c) 1995-2004, Regents of the University of Colorado

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

Neither the name of the University of Colorado nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.]

Definition at line 86 of file cuddZddMisc.c.

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