addbddnodeassoc.3alc man page

addbddnodeassoc — adds a bdd node in  a variable association.

Synopsis

#include "bdd101.h"
bddassoc ∗addbddnodeassoc( BddSystem, BddAssoc, Variable, BddNode )
  bddsystem  ∗BddSystem;
  bddassoc   ∗BddAssoc;
  bddvar      Variable;
  bddnode    ∗BddNode;

Parameters

BddSystem

The bdd system.

BddAssoc

The variable association.

Variable

The variable number.

BddNode

The bdd node to add.

Description

addbddnodeassoc adds the bdd node BddNode, associated to the variable number Variable, in the variable association BddAssoc, in the bdd system BddSystem. If a null pointer is given, the default bdd system is used. The number of external reference of BddNode is incremented.

Return Value

addbddnodeassoc returns a pointer to the variable association.

Errors

"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;
   bddcircuit ∗BddCircuit;
   bddnode    ∗BddNode;
   bddnode    ∗BddSubst;
   bddnode    ∗BddVariable;
   bddassoc   ∗Assoc;
   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 );
   Assoc = addbddassoc( (bddsystem ∗)0 );
   addbddnodeassoc( (bddsystem ∗)0, Assoc, Variable, BddSubst );
   BddNode = substbddnodeassoc( (bddsystem ∗)0, BddSubst, Assoc );
   Expr = convertbddcircuitabl( BddCircuit, BddNode );
   /* displays ((i3 or i2) and i1) */
   viewablexpr( Expr, ABL_VIEW_VHDL );
   freeablexpr( Expr );
   destroybddassoc( (bddsystem ∗)0 );
   destroybddsystem( (bddsystem ∗)0 );
   destroybddcircuit( (bddcircuit ∗)0 );

See Also

bdd(1)

Info

October 1, 1997 ASIM/LIP6 BDD FUNCTIONS