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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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