.\"   $Id: addbddvar.3,v 1.1 2002/03/18 11:26:50 ludo Exp $
.\" @(#)addbddvar.2 2.7 96/07/02 ; Labo masi cao-vlsi; Author : Jacomme Ludovic
.TH ADDBDDVAR 3 "October 1, 1997" "ASIM/LIP6" "BDD FUNCTIONS"
.SH NAME
addbddvar \- adds a new variable in the \fBbdd\fP system.
.so buster/alliance/alc_origin.1.en.gz
.SH SYNOPSYS
.nf
.if n \{\
.ft B \}
.if t \{\
.ft CR \}
#include "bdd101.h"
bddnode \(**addbddvar( BddSystem, Variable )
  bddsystem \(**BddSystem;
  bddvar     Variable;
.ft R
.fi
.SH PARAMETERS
.TP 20
\fIBddSystem\fP
The \fBbdd\fP system.
.TP
\fIVariable\fP
The variable number.
.SH DESCRIPTION
\fBaddbddvar\fP creates a new variable, with the number \fIVariable\fP,
in the \fBbdd\fP system \fIBddSystem\fP.
If a null pointer is given, the default \fBbdd\fP system is used.
.br
.SH RETURN VALUE
\fBaddbddvar\fP returns a pointer to the \fBbdd\fP node of the new variable.
.SH ERRORS
.if n \{\
.ft B \}
.if t \{\
.ft CR \}
"no more variables, error !"
.ft R
.RS
There is no variable number left.
.RE
.if n \{\
.ft B \}
.if t \{\
.ft CR \}
"variable xxx out of range, error !"
.ft R
.RS
The \fIVariable\fP parameter must be less or equal to
the \fIBddSystem->NUMBER_VAR\fP field.
.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 );
   BddNode = addbddvar( (bddsystem \(**)0, 0 );
   destroybddsystem( (bddsystem \(**)0 );
.ft R
.fi
.SH SEE ALSO
.BR bdd (1)


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