SYNOPSYS

#include "bdd101.h"
bddnode *existbddnodeassocoff( BddSystem, BddNode, BddAssoc )
  bddsystem *BddSystem;
  bddnode   *BddNode;
  bddassoc  *BddAssoc;

PARAMETERS

BddSystem

The bdd system.

BddNode

The bdd node to treat.

BddAssoc

The variable association.

DESCRIPTION

existbddnodeassocoff suppress in the bdd node BddNode complemented, all the variables associated with something in the variable association BddAssoc, in the bdd system BddSystem. If a null pointer is given, the default bdd system is used.

RETURN VALUE

existbddnodeassocoff returns the computed bdd node.

EXAMPLE

#include "bdd101.h"
   bddsystem  *BddSystem;
   bddcircuit *BddCircuit;
   bddnode    *BddNode;
   bddnode    *BddSubst;
   bddnode    *BddVariable;
   bddassoc   *Assoc;
   chain_list *Expr;
   bddvar         Variable;
   BddSystem  = createbddsystem( 100, 1000, 100, 50000 );
   BddCircuit = createbddcircuit( "hello_world", 10, 10, BddSystem );
   Expr = createablbinexpr( ABL_NAND,
                            createablatom( "i0" ),
                            createablatom( "i1" ) );
   BddNode = addbddcircuitabl( BddCircuit, Expr );
   freeablexpr( Expr );
   BddVariable = searchbddcircuitin( (bddcircuit *)0, "i0" );
   Variable = getbddvarbyindex( (bddsystem *)0, BddVariable->INDEX );
   Assoc = addbddassoc( (bddsystem *)0 );
   addbddnodeassoc( (bddsystem *)0, Assoc, Variable, BddSystem->ONE );
   BddNode = existbddnodeassocoff( (bddsystem *)0, BddNode, Assoc );
   Expr = convertbddcircuitabl( BddCircuit, BddNode );
   /* displays (not i1) */
   viewablexpr( Expr, ABL_VIEW_VHDL );
   freeablexpr( Expr );
   destroybddassoc( (bddsystem *)0 );
   destroybddsystem( (bddsystem *)0 );
   destroybddcircuit( (bddcircuit *)0 );