relprodbddnodeassoc(3alc)

1RELPRODBDDNODEASSOC(3)           BDD FUNCTIONS          RELPRODBDDNODEASSOC(3)
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NAME

6       relprodbddnodeassoc - computes a relational product.
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SYNOPSIS

9       #include "bdd101.h"
10       bddnode ∗relprodbddnodeassoc( BddSystem, BddNode1, BddNode2, BddAssoc )
11         bddsystem ∗BddSystem;
12         bddnode   ∗BddNode1;
13         bddnode   ∗BddNode2;
14         bddassoc  ∗BddAssoc;
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PARAMETERS

17       BddSystem           The bdd system.
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19       BddNode1            The first bdd node.
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21       BddNode2            The second bdd node.
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23       BddAssoc            The variable association.
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DESCRIPTION

26       relprodbddnodeassoc  computes  BddNode1  AND BddNode2, and suppress the
27       variables associated with something in the variable association  BddAs‐
28       soc,  in  the  bdd  system  BddSystem.  If a null pointer is given, the
29       default bdd system is used.
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RETURN VALUE

32       relprodbddnodeassoc returns the computed bdd node.
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ERRORS

35       "bad variable association xxx, error !"
36              The BddAssoc parameter must a valid variable association.
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EXAMPLE

39       #include "bdd101.h"
40          bddsystem  ∗BddSystem;
41          bddcircuit ∗BddCircuit;
42          bddnode    ∗BddNode;
43          bddnode    ∗BddNode1;
44          bddnode    ∗BddNode2;
45          bddnode    ∗BddVariable;
46          bddassoc   ∗Assoc;
47          chain_list ∗Expr;
48          bddvar         Variable;
49          BddSystem  = createbddsystem( 100, 1000, 100, 50000 );
50          BddCircuit = createbddcircuit( "hello_world", 10, 10, BddSystem );
51          Expr = createablbinexpr( ABL_AND,
52                                   createablatom( "i0" ),
53                                   createablatom( "i1" ) );
54          BddNode1 = addbddcircuitabl( BddCircuit, Expr );
55          freeablexpr( Expr );
56          Expr = createablbinexpr( ABL_OR,
57                                   createablatom( "i0" ),
58                                   createablatom( "i1" ) );
59          BddNode2 = addbddcircuitabl( BddCircuit, Expr );
60          freeablexpr( Expr );
61          BddVariable = searchbddcircuitin( (bddcircuit ∗)0, "i0" );
62          Variable = getbddvarbyindex( (bddsystem ∗)0, BddVariable->INDEX );
63          Assoc = addbddassoc( (bddsystem ∗)0 );
64          addbddnodeassoc( (bddsystem ∗)0, Assoc, Variable, BddSystem->ONE );
65          BddNode = relprodbddnodeassoc( (bddsystem ∗)0, BddNode1, BddNode2, Assoc );
66          Expr = convertbddcircuitabl( BddCircuit, BddNode );
67          /* displays i1 */
68          viewablexpr( Expr, ABL_VIEW_VHDL );
69          freeablexpr( Expr );
70          destroybddassoc( (bddsystem ∗)0 );
71          destroybddsystem( (bddsystem ∗)0 );
72          destroybddcircuit( (bddcircuit ∗)0 );
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