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COFACTORBDDNODE(3)		 BDD FUNCTIONS		    COFACTORBDDNODE(3)

NAME
       cofactorbddnode - computes the generalized cofactor.

SYNOPSYS
       #include	"bdd101.h"
       bddnode *cofactorbddnode( BddSystem, BddNode1, BddNode2 )
	 bddsystem *BddSystem;
	 bddnode   *BddNode1;
	 bddnode   *BddNode2;

PARAMETERS
       BddSystem	   The bdd system.

       BddNode1		   The first bdd node.

       BddNode2		   The second bdd node.

DESCRIPTION
       cofactorbddnode	computes  the  generalized  cofactor  of  BddNode1  by
       BddNode2, in the	bdd system BddSystem.  If a null pointer is given, the
       default bdd system is used.

RETURN VALUE
       cofactorbddnode returns the resulting bdd node.

ERRORS
       "index xxx out of range"
	      The BddNode2 parameter must be different to the zero bdd node.

EXAMPLE
       #include	"bdd101.h"
	  bddsystem  *BddSystem;
	  bddcircuit *BddCircuit;
	  bddnode    *BddNode1;
	  bddnode    *BddNode2;
	  bddnode    *BddNode;
	  chain_list *Expr;
	  BddSystem  = createbddsystem(	100, 1000, 100,	50000 );
	  BddCircuit = createbddcircuit( "hello_world",	10, 10,	BddSystem );
	  Expr = createablbinexpr( ABL_OR,
				   createablatom( "i0" ),
				   createablatom( "i1" ) );
	  BddNode1 = addbddcircuitabl( BddCircuit, Expr	);
	  freeablexpr( Expr );
	  Expr = createablbinexpr( ABL_AND,
				   createablatom( "i0" ),
				   createablatom( "i1" ) );
	  BddNode2 = addbddcircuitabl( BddCircuit, Expr	);
	  freeablexpr( Expr );
	  BddNode = cofactorbddnode( (bddsystem	*)0, BddNode1, BddNode2	);
	  Expr = convertbddcircuitabl( BddCircuit, BddNode );
	  /* displays '1' */
	  viewablexpr( Expr, ABL_VIEW_VHDL );
	  freeablexpr( Expr );
	  destroybddsystem( (bddsystem *)0 );
	  destroybddcircuit( (bddcircuit *)0 );

SEE ALSO
       bdd(1)

ASIM/LIP6			October	1, 1997		    COFACTORBDDNODE(3)
NAME | SYNOPSYS | PARAMETERS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLE | SEE ALSO

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