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)
