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 Université 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 !"

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.