unsetbddrefext(3) [debian man page]

UNSETBDDREFEXT(3)						   BDD FUNCTIONS						 UNSETBDDREFEXT(3)

NAME

       unsetbddrefext - increments the internal reference, and decrements the external reference of a bdd node.

ORIGIN

       This  software  belongs	to  the  ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite Pierre et Marie CURIE, in
       Paris, France.

       Web : http://asim.lip6.fr/recherche/alliance/
       E-mail : alliance-users@asim.lip6.fr

SYNOPSYS

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

PARAMETERS

       BddNode		   The bdd node.

DESCRIPTION

       unsetbddrefext increments the number of internal reference of the bdd node BddNode and decrements its number of external reference.

RETURN VALUE

       unsetbddrefext returns the BddNode pointer.

ERRORS

       "negative reference, index xxx error !"
	      The BddNode must have a postive number of external 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 );
	  incbddrefext( BddNode );
	  unsetbddrefext( BddNode );
	  /* displays Node VAR: 0  INDEX: 2  MARK: 0  REF_EXT: 0  REF_INT: 1 */
	  viewbddnode( (bddsystem *)0, BddNode );
	  /* displays (not i0) */
	  viewablexpr( Expr, ABL_VIEW_VHDL );
	  freeablexpr( Expr );
	  destroybddsystem( (bddsystem *)0 );
	  destroybddcircuit( (bddcircuit *)0 );

SEE ALSO

       bdd(1)

BUG REPORT

       This tool is under development at the ASIM department of the LIP6 laboratory.
       We need your feedback to improve documentation and tools.

ASIM
/LIP6							  October 1, 1997						 UNSETBDDREFEXT(3)

DELBDDNODE(3)							   BDD FUNCTIONS						     DELBDDNODE(3)

NAME

       delbddnode - deletes an unused bdd node.

ORIGIN

       This  software  belongs	to  the  ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite Pierre et Marie CURIE, in
       Paris, France.

       Web : http://asim.lip6.fr/recherche/alliance/
       E-mail : alliance-users@asim.lip6.fr

SYNOPSYS

       #include "bdd101.h"
       void delbddnode( BddSystem, BddNode )
	 bddsystem *BddSystem;
	 bddnode   *BddNode;

PARAMETERS

       BddSystem	   The bdd system.

       BddNode		   The bdd node.

DESCRIPTION

       delbddnode tries to delete the bdd node BddNode and its children, if they have not external reference, in the bdd system BddSystem.   If  a
       null pointer is given, the default bdd system is used. The use of this function is not recommended because, it takes time.  It is better to
       call the decbddrefext function, and do a garbage collection with the garbagebddsystem function.

RETURN VALUE

       delbddnode returns nothing.

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 );
	  delbddnode( (bddsystem *)0, decbddrefext( BddNode ) );
	  /* displays (not i0) */
	  viewablexpr( Expr, ABL_VIEW_VHDL );
	  freeablexpr( Expr );
	  destroybddsystem( (bddsystem *)0 );
	  destroybddcircuit( (bddcircuit *)0 );

SEE ALSO

       bdd(1)

BUG REPORT

       This tool is under development at the ASIM department of the LIP6 laboratory.
       We need your feedback to improve documentation and tools.

ASIM
/LIP6							  October 1, 1997						     DELBDDNODE(3)