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Man Pages


Manual Reference Pages  -  DELBDDNODEASSOC (3)

NAME

delbddnodeassoc - deletes a bdd node in a variable association.

[Include document man1/alc_origin.1]

CONTENTS

Synopsys
Parameters
Description
Return Value
Errors
Example
See Also

SYNOPSYS






#include "bdd101.h"
int delbddnodeassoc( BddSystem, BddAssoc, Variable )
  bddsystem  *BddSystem;
  bddassoc   *BddAssoc;
  bddvar      Variable;


PARAMETERS

BddSystem The bdd system.
BddAssoc The variable association.
Variable The variable number.

DESCRIPTION

delbddnodeassoc deletes the bdd node 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 the associated bdd node is incremented.

RETURN VALUE

delbddnodeassoc returns 1 if the variable is found, 0 otherwise.

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 );
   delbddnodeassoc( (bddsystem *)0, Assoc, Variable );
   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)

[Include document man1/alc_bug_report.1]

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ASIM/LIP6 DELBDDNODEASSOC (3) October 1, 1997

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