SWAPBDDVAR(3)							   BDD FUNCTIONS						     SWAPBDDVAR(3)

NAME

       swapbddvar - swaps two contiguous variables.

ORIGIN

       This  software  belongs	to  the  ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite Pierre et Marie CURIE, in
       Paris, France.

       Web : http://asim.lip6.fr/recherche/alliance/
       E-mail : alliance-users@asim.lip6.fr

SYNOPSYS

       #include "bdd101.h"
       void swapbddvar( BddSystem, Variable )
	 bddsystem *BddSystem;
	 bddvar     Variable;

PARAMETERS

       BddSystem	   The bdd system.

       Variable 	   The variable to swap.

DESCRIPTION

       swapbddvar swaps the variable number Variable with the variable number Variable + 1, in the bdd system BddSystem.  If  a  null  pointer	is
       given, the default bdd system is used.  This function is usefull for the bdd nodes reordering.

RETURN VALUE

       swapbddvar returns nothing.

ERRORS

       "variable xxx out of range, error !"
	      The Variable and Variable + 1, must be valid variables number.

EXAMPLE

       #include "bdd101.h"
	  bddsystem  *BddSystem;
	  bddnode    *BddNode1;
	  bddnode    *BddNode2;
	  BddSystem  = createbddsystem( 100, 1000, 100, 50000 );
	  BddNode1 = addbddvar( (bddsystem *)0, 0 );
	  BddNode2 = addbddvar( (bddsystem *)0, 0 );
	  swapbddvar( (bddsystem *)0, 0 );
	  destroybddsystem( (bddsystem *)0 );

SEE ALSO

       bdd(1)

BUG REPORT

       This tool is under development at the ASIM department of the LIP6 laboratory.
       We need your feedback to improve documentation and tools.

ASIM
/LIP6							  October 1, 1997						     SWAPBDDVAR(3)