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SETBDDREFEXT(3) BDD FUNCTIONS SETBDDREFEXT(3)

NAME

setbddrefext - increments the external reference, and decrements the internal 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 ∗setbddrefext( BddNode )
  bddnode ∗BddNode;

PARAMETERS

BddNode
The bdd node.

DESCRIPTION

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

RETURN VALUE

setbddrefext returns the BddNode pointer.

ERRORS

"negative reference, index xxx error !"
The BddNode must have a postive 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 );
   setbddrefext( 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)

BUG REPORT

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

October 1, 1997 ASIM/LIP6