1UPVARBDD(3)                      BDD functions                     UPVARBDD(3)
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NAME

6       upVarBdd - brings up an index in a BDD
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SYNOPSIS

9       #include "logmmm.h"
10       pNode upVarBdd(pBdd,oldIndex,newIndex)
11       pNode pBdd;
12       short oldIndex,newIndex;
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PARAMETERS

15       pBdd                BDD in which index is came up
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17       oldIndex            index to come up
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19       newIndex            new index
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DESCRIPTION

22       upVarBdd()  constructs  a  graph  obtained  by  bringing up oldIndex to
23       newIndex. This function is called by the BDDs reordering function.
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EXAMPLE

26       #include "mutnnn.h"      /* mbk utilities */
27       #include "logmmm.h"
28       pNode nodeA,nodeB;
29       pNode res;
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31       initializeBdd(SMALL_BDD);
32       nodeA = createNodeTermBdd(3);
33       nodeB = createNodeTermBdd(3);
34       res = applyBinBdd(OR,nodeA,nodeB); /* res = (OR a b)
35       res = upVarBdd(res,2,4);
36       displayBdd(res,1);
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38       /* it will display
39       @res     INDEX 4    LOW = @nodeB     HIGH = ONE
40       @nodeB   INDEX 3    LOW = ZERO       HIGH = ONE
41       */
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43       destroyBdd(1);
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ERROR

46       "upVarBdd : error - newIndex <= oldIndex"
47       The new index must be higher than the old index.
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SEE ALSO

50       log(1),  bdd(1),   applyBdd(3),   notBdd(3),   constraintBdd(3),   com‐
51       poseBdd(3),  applyBinBdd(3),  addListBdd(3), displayBdd(3), createNode‐
52       TermBdd(3).
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58ASIM/LIP6                       October 1, 1997                    UPVARBDD(3)