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DECBDDREFINT(3)			 BDD FUNCTIONS		       DECBDDREFINT(3)

NAME
       decbddrefint - decrements the internal reference	of a bdd node.

SYNOPSIS
       #include	"bdd101.h"
       bddnode *decbddrefint( BddNode )
	 bddnode *BddNode;

PARAMETERS
       BddNode		   The bdd node.

DESCRIPTION
       decbddrefint  decrements	 the  number  of internal reference of the bdd
       node BddNode.

RETURN VALUE
       decbddrefint returns the	BddNode	pointer.

ERRORS
       "negative reference, index xxx error !"
	      The BddNode must have a positive number of internal reference.

EXAMPLE
       #include	"bdd101.h"
	  bddsystem  *BddSystem;
	  bddcircuit *BddCircuit;
	  bddnode    *BddNode;
	  chain_list *Expr;
	  BddSystem  = createbddsystem(	100, 1000, 100,	50000 );
	  BddCircuit = createbddcircuit( "hello_world",	10, 10,	BddSystem );
	  BddNode = addbddcircuitin( (bddcircuit *)0, "i0", 0, BDD_IN_MODE_FIRST );
	  BddNode = addbddnode(	(bddsystem *)0,	BddNode->INDEX,	BddNode->LOW, BddNode->HIGH );
	  Expr = convertbddcircuitabl( (bddcircuit *)0,	BddNode	);
	  incbddrefint(	BddNode	);
	  decbddrefint(	BddNode	);
	  /* displays Node VAR:	0  INDEX: 2  MARK: 0  REF_EXT: 1  REF_INT: 0 */
	  viewbddnode( (bddsystem *)0, BddNode );
	  /* displays (not i0) */
	  viewablexpr( Expr, ABL_VIEW_VHDL );
	  freeablexpr( Expr );
	  destroybddsystem( (bddsystem *)0 );
	  destroybddcircuit( (bddcircuit *)0 );

SEE ALSO
       bdd(1)

ASIM/LIP6			October	1, 1997		       DECBDDREFINT(3)

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