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ADDBDDVARBEFORE(3) BDD FUNCTIONS ADDBDDVARBEFORE(3)

NAME

addbddvarbefore - adds a new variable, before an existing one.

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 ∗addbddvarbefore( BddSystem )
  bddsystem ∗BddSystem;
  bddindex      Index;

PARAMETERS

BddSystem
The bdd system.
Index
The bdd index of an existing variable.

DESCRIPTION

addbddvarbefore creates a new variable, with the number BddSystem->INDEX_TO_VAR[ Index ] in the bdd system BddSystem. If a null pointer is given, the default bdd system is used.

RETURN VALUE

addbddvarbefore returns a pointer to the bdd node of the new variable.

ERRORS

"no more variables, error !"
There is no variable number left.
"index xxx out of range, error !"
The Index parameter must be a valid index.

EXAMPLE

#include "bdd101.h"
   bddsystem  ∗BddSystem;
   bddnode    ∗BddNode1;
   bddnode    ∗BddNode2;
   BddSystem  = createbddsystem( 100, 1000, 100, 50000 );
   BddNode1 = addbddvarfirst( (bddsystem ∗)0 );
   BddNode2 = addbddvarbefore( (bddsystem ∗)0, BddNode1->INDEX );
   destroybddsystem( (bddsystem ∗)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