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EXISTBDDNODEASSOCOFF(3)		 BDD FUNCTIONS	       EXISTBDDNODEASSOCOFF(3)

NAME
       existbddnodeassocoff - computes an existential quantification.

SYNOPSIS
       #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 Bd-
       dAssoc,	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.

ERRORS
       "bad variable association xxx, error !"
	      The BddAssoc parameter must a valid variable association.

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 );

SEE ALSO
       bdd(1)

ASIM/LIP6			October	1, 1997	       EXISTBDDNODEASSOCOFF(3)

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