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0026120: Visualization - segmentation fault in AIS_Selection

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Added NULL-pointer checks
This commit is contained in:
vpa 2015-04-22 14:25:31 +03:00 committed by bugmaster
parent b3c433fea3
commit 8d64c0cc40
1 changed files with 8 additions and 1 deletions
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9
src/AIS/AIS_Selection.cxx
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@ -230,6 +230,10 @@ void AIS_Selection::ClearAndSelect(const Handle(Standard_Transient)& anObject) {
Standard_Integer AIS_Selection::Extent() { Standard_Integer AIS_Selection::Extent() {
Handle(AIS_Selection) S; Handle(AIS_Selection) S;
AIS_Sel_CurrentSelection (S); AIS_Sel_CurrentSelection (S);
if (S.IsNull())
return 0;
return S->myresult.Extent(); return S->myresult.Extent();
} }
@ -241,7 +245,10 @@ Handle(Standard_Transient) AIS_Selection::Single()
{ {
Handle(AIS_Selection) S; Handle(AIS_Selection) S;
AIS_Sel_CurrentSelection (S); AIS_Sel_CurrentSelection (S);
if (S.IsNull())
return Handle(Standard_Transient)();
S->Init(); S->Init();
return S->Value(); return S->Value();
} }