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0029633: Data Exchange - access violation in StepVisual_PresentationStyleAssignment while translating STEP file

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Add several checks for null.
This commit is contained in:
ika
2018-03-23 18:12:00 +03:00
committed by bugmaster
parent bc728d2621
commit f0bef12142
4 changed files with 22 additions and 3 deletions
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2
src/StepVisual/StepVisual_PresentationStyleAssignment.cxx
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@@ -45,5 +45,5 @@ StepVisual_PresentationStyleSelect StepVisual_PresentationStyleAssignment::Style
Standard_Integer StepVisual_PresentationStyleAssignment::NbStyles () const
{
return styles->Length();
return (styles.IsNull()) ? 0 : styles->Length();
}

2
src/StepVisual/StepVisual_SurfaceSideStyle.cxx
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@@ -58,5 +58,5 @@ StepVisual_SurfaceStyleElementSelect StepVisual_SurfaceSideStyle::StylesValue(co
Standard_Integer StepVisual_SurfaceSideStyle::NbStyles () const
{
return styles->Length();
return (styles.IsNull()) ? 0 : styles->Length();
}