composebddnode.3alc - Man Page

#include "bdd101.h"
bddnode ∗composebddnode( BddSystem, BddNode, Variable, BddSubst )
  bddsystem ∗BddSystem;
  bddnode   ∗BddNode;
  bddvar     Variable;
  bddnode   ∗BddSubst;

BddSystem

The bdd system.

BddNode

The bdd node.

Variable

The variable to find.

BddSubst

The bdd to substitute with.

composebddnode substitutes all the occurency of the variable Variable in the bdd node BddNode by the bdd node BddSubst, in the bdd system BddSystem. If a null pointer is given, the default bdd system is used.

composebddnode returns the resulting bdd node.

"variable xxx out of range, error !"

#include "bdd101.h"
   bddsystem  ∗BddSystem;
   bddcircuit ∗BddCircuit;
   bddnode    ∗BddVariable;
   bddnode    ∗BddNode;
   bddnode    ∗BddSubst;
   chain_list ∗Expr;
   bddvar         Variable;
   BddSystem  = createbddsystem( 100, 1000, 100, 50000 );
   BddCircuit = createbddcircuit( "hello_world", 10, 10, BddSystem );
   Expr = createablbinexpr( ABL_AND,
                            createablatom( "i0" ),
                            createablatom( "i1" ) );
   BddNode = addbddcircuitabl( BddCircuit, Expr );
   freeablexpr( Expr );
   Expr = createablbinexpr( ABL_OR,
                            createablatom( "i2" ),
                            createablatom( "i3" ) );
   BddSubst = addbddcircuitabl( BddCircuit, Expr );
   freeablexpr( Expr );
   BddVariable = searchbddcircuitin( (bddcircuit ∗)0, "i0" );
   Variable = getbddvarbyindex( (bddsystem ∗)0, BddVariable->INDEX );
   BddNode = composebddnode( (bddsystem ∗)0, BddNode, Variable, BddSubst );
   Expr = convertbddcircuitabl( BddCircuit, BddNode );
   /* displays (i1 and (i2 or i3)) */
   viewablexpr( Expr, ABL_VIEW_VHDL );
   freeablexpr( Expr );
   destroybddsystem( (bddsystem ∗)0 );
   destroybddcircuit( (bddcircuit ∗)0 );

bdd(1)