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0027194: Possible division by zero in IntPatch_WLineTool

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Correct handling for division by zero is added. This prevents exception when FPE is enabled
This commit is contained in:
aml 2016-02-20 11:54:44 +03:00 committed by bugmaster
parent 09eca2b5b3
commit 871776ea38
1 changed files with 4 additions and 3 deletions
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7
src/IntPatch/IntPatch_WLineTool.cxx
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@ -379,9 +379,10 @@ static Handle(IntPatch_WLine)
Standard_Real aStepOnS1 = aPntOnS1[0].SquareModulus() / aPntOnS1[1].SquareModulus(); Standard_Real aStepOnS1 = aPntOnS1[0].SquareModulus() / aPntOnS1[1].SquareModulus();
Standard_Real aStepOnS2 = aPntOnS2[0].SquareModulus() / aPntOnS2[1].SquareModulus(); Standard_Real aStepOnS2 = aPntOnS2[0].SquareModulus() / aPntOnS2[1].SquareModulus();
Standard_Real aStepCoeff = Min(aStepOnS1, aStepOnS2) / Max(aStepOnS1, aStepOnS2); // Check very rare case when wline fluctuates nearly one point and some of them may be equal.
// Middle point will be deleted when such situation occurs.
if (aStepCoeff > aLimitCoeff) // bugs moddata_2 bug469.
if (Min(aStepOnS1, aStepOnS2) >= aLimitCoeff * Max(aStepOnS1, aStepOnS2))
{ {
// Set hash flag to "Delete" state. // Set hash flag to "Delete" state.
isDeleteState = Standard_True; isDeleteState = Standard_True;