.\"   $Id: implybddnode.3,v 1.1 2002/03/18 11:26:50 ludo Exp $
.\" @(#)implybddnode.2 2.7 96/07/02 ; Labo masi cao-vlsi; Author : Jacomme Ludovic
.TH IMPLYBDDNODE 3 "October 1, 1997" "ASIM/LIP6" "BDD FUNCTIONS"
.SH NAME
implybddnode \- computes a \fBbdd\fP that implies a conjonction of two \fBbdd\fP nodes.
.so jessie/alliance/alc_origin.1.en.gz
.SH SYNOPSYS
.nf
.if n \{\
.ft B \}
.if t \{\
.ft CR \}
#include "bdd101.h"
bddnode \(**implybddnode( BddSystem, BddNode1, BddNode2 )
  bddsystem \(**BddSystem;
  bddnode   \(**BddNode1;
  bddnode   \(**BddNode2;
.ft R
.fi
.SH PARAMETERS
.TP 20
\fIBddSystem\fP
The \fBbdd\fP system.
.TP
\fIBddNode1\fP
The first \fBbdd\fP node.
.TP
\fIBddNode2\fP
The second \fBbdd\fP node.
.SH DESCRIPTION
\fBimplybddnode\fP tests if the intersection of \fIBddNode1\fP and not \fIBddNode2\fP,
exists, in the \fBbdd\fP system \fIBddSystem\fP.
If a null pointer is given, the default \fBbdd\fP system is used.
.br
.SH RETURN VALUE
\fBimplybddnode\fP returns the \fBbdd\fP node zero if there is no 
intersection, and a computed \fBbdd\fP node otherwise.
.SH EXAMPLE
.ta 3n 6n 9n 12n 15n 18n 21n
.nf
.if n \{\
.ft B \}
.if t \{\
.ft CR \}
#include "bdd101.h"
   bddsystem  \(**BddSystem;
   bddcircuit \(**BddCircuit;
   bddnode    \(**BddNode1;
   bddnode    \(**BddNode2;
   bddnode    \(**BddImply;
   chain_list \(**Expr;
   BddSystem  = createbddsystem( 100, 1000, 100, 50000 );
   BddCircuit = createbddcircuit( "hello_world", 10, 10, BddSystem );
   Expr = createablbinexpr( ABL_OR,
                            createablatom( "i0" ),
                            createablatom( "i1" ) );
   BddNode1 = addbddcircuitabl( BddCircuit, Expr );
   freeablexpr( Expr );
   Expr = createablbinexpr( ABL_AND,
                            createablatom( "i0" ),
                            createablatom( "i1" ) );
   BddNode1 = addbddcircuitabl( BddCircuit, Expr );
   freeablexpr( Expr );
   BddImply = implybddnode( (bddsystem \(**)0, BddNode1, BddNode2 );
   Expr = convertbddcircuitabl( BddCircuit, BddNode );
   /* displays (i0 and (not i1)) */
   viewablexpr( Expr, ABL_VIEW_VHDL );
   freeablexpr( Expr );
   destroybddsystem( (bddsystem \(**)0 );
   destroybddcircuit( (bddcircuit \(**)0 );
.ft R
.fi
.SH SEE ALSO
.BR bdd (1)


.so jessie/alliance/alc_bug_report.1.en.gz