0025011: IntAna_QuaQuadGeo can crash with out-of-bounds exception

Fix the crash in IntAna_QuadQuadGeo by checking the number of intersections

diff --git a/src/IntAna/IntAna_QuadQuadGeo.cxx b/src/IntAna/IntAna_QuadQuadGeo.cxx
index 425b268b256b838493a1a81b11185bf188f4ae25..212306a00164284c39ed451f060b05c979c4f592 100644 (file)
--- a/src/IntAna/IntAna_QuadQuadGeo.cxx
+++ b/src/IntAna/IntAna_QuadQuadGeo.cxx
@@ -1516,7 +1516,7 @@ IntAna_QuadQuadGeo::IntAna_QuadQuadGeo(const gp_Cylinder& Cyl,
     gp_Pln aPln2(aQA2, aD3Ax2);
     //
     aIntr.Perform(aPln1, aPln2, Tol, Tol);
-    if (!aIntr.IsDone()) {
+    if (!aIntr.IsDone() || 0 == aIntr.NbSolutions()) {
       iRet=-1; // just in case. it must not be so
       typeres=IntAna_NoGeometricSolution; 
       return;