.\"   $Id: getbddvarnodebyindex.3,v 1.1 2002/03/18 11:26:50 ludo Exp $
.\" @(#)getbddvarnode.2 2.7 96/07/02 ; Labo masi cao-vlsi; Author : Jacomme Ludovic
.TH GETBDDVARNODEBYINDEX 3 "October 1, 1997" "ASIM/LIP6" "BDD FUNCTIONS"
.SH NAME
getbddvarnode \- gives the \fBbdd\fP node of a variable.
.so jessie/alliance/alc_origin.1.en.gz
.SH SYNOPSYS
.nf
.if n \{\
.ft B \}
.if t \{\
.ft CR \}
#include "bdd101.h"
bddnode \(**getbddvarnodebyindex( BddSystem, Index )
  bddsystem \(**BddSystem;
  bddindex   Index;
.ft R
.fi
.SH PARAMETERS
.TP 20
\fIBddSystem\fP
The \fBbdd\fP system.
.TP
\fIIndex\fP
The \fBbdd\fP index.
.SH DESCRIPTION
\fBgetbddvarnode\fP gives the \fBbdd\fP node of the \fBbdd\fP index
\fIIndex\fP, in the \fBbdd\fP system BddSystem.
If a null pointer is given, the default \fBbdd\fP system is used.
The function uses simply the table \fIBddSystem\fP->VAR_NODE.
.br
.SH RETURN VALUE
\fBgetbddvarnode\fP returns a pointer to the variable \fBbdd\fP node.
.SH ERRORS
.if n \{\
.ft B \}
.if t \{\
.ft CR \}
"index xxx out of range, error !"
.ft R
.RS
The \fIIndex\fP parameter must be a valid index.
.RE
.SH EXAMPLE
.ta 3n 6n 9n 12n 15n 18n 21n
.nf
.if n \{\
.ft B \}
.if t \{\
.ft CR \}
#include "bdd101.h"
   bddsystem  \(**BddSystem;
   bddnode    \(**BddNode;
   BddSystem  = createbddsystem( 100, 1000, 100, 50000 );
   addbddvar( (bddsystem \(**)0, 0 );
   BddNode = getbddvarnodebyindex( (bddsystem \(**)0, 2 );
   ...
   destroybddsystem( (bddsystem \(**)0 );
.ft R
.fi
.SH SEE ALSO
.BR bdd (1)


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