man addbddvar (3): adds a new variable in the bdd system.

SYNOPSYS

#include "bdd101.h"
bddnode *addbddvar( BddSystem, Variable )
  bddsystem *BddSystem;
  bddvar     Variable;

PARAMETERS

BddSystem: The bdd system.
Variable: The variable number.

DESCRIPTION

addbddvar creates a new variable, with the number Variable, in the bdd system BddSystem. If a null pointer is given, the default bdd system is used.

RETURN VALUE

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

ERRORS

"no more variables, error !"

: There is no variable number left.

"variable xxx out of range, error !"

: The Variable parameter must be less or equal to the BddSystem->NUMBER_VAR field.

EXAMPLE

#include "bdd101.h"
   bddsystem  *BddSystem;
   bddnode    *BddNode;
   BddSystem  = createbddsystem( 100, 1000, 100, 50000 );
   BddNode = addbddvar( (bddsystem *)0, 0 );
   destroybddsystem( (bddsystem *)0 );