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ADDBDDASSOC(3)			  BDD FUNCTIONS 		  ADDBDDASSOC(3)

NAME
     addbddassoc - creates a new association variables.

SYNOPSIS
     #include "bdd101.h"
     bddassoc *addbddassoc( BddSystem )
       bddsystem  *BddSystem;

PARAMETERS
     BddSystem		 The bdd system.

DESCRIPTION
     addbddassoc  creates  a new association variables in the bdd system BddSys-
     tem.  If a null pointer is given, the default bdd system is used.

RETURN VALUE
     addbddassoc returns a pointer to the new variable association.

ERRORS
     "no more variable association, error !"
	    There is no variable association number left.

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 );
	delbddassoc( (bddsystem *)0, 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)

ASIM/LIP6			 October 1, 1997		  ADDBDDASSOC(3)

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