occt: master f4dee9bb

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Author Committer Branch Timestamp Parent
ifv kgv master 2016-08-09 17:12:59 master 73594f72
Affected Issues  0026329: Restore floating point signals handling in DRAW
Changeset 0026329: Restore floating point signals handling in DRAW

Added DRAW command dsetsignal, resetting OSD signal handler with either armed or disabled FPE handler, according to an option.
If called without arguments, it sets FPE handler only if environment variable OSD_FPE is defined (with value different from 0).
On start, DRAW calls dsetsignal to set FPE signal if CSF_FPE is defined.
Test bugs fclasses bug6143 uses dsetsignal to set FPE handler unconditionally before the test command, and resets it to default at the end.

A number of changes in the code have been done in order to fix floating point exceptions that became generated after enabling signals:

- Global functions Sinh() and Cosh() defined in Standard_Real.hxx are improved to raise Standard_NumericError exception if argument is too big (greater than 710.47586), instead of relying on system treatment of floating point overflow. These functions are used instead of sinh and cosh in ElCLib.cxx.

- Maximal value of parameter on hyperbola is restricted by 23 (corresponding to ~1e10 in 3d) in order to avoid FP overflow in Extrema_GenExtCS.cxx, ShapeFix_EdgeProjAux.cxx.

- Interface of the root curve adaptor class Adaptor3d_Curve has been updated to add new virtual methods BasisCurve and OffsetValue. They complement the adaptor for the case of offset curves. These methods are used in Extrema_GenExtCS.cxx to restrict domain search in the case of offset of hyperbola, in order to get rid of floating point overflow. All classes inheriting Adaptor3d_Curve have been changed to implement the new virtual methods.

- Protection against division by zero has been implemented in ApproxInt_KnotTools.cxx, BRepClass3d_SClassifier.cxx, BRepGProp_Face.cxx, BRepMesh_FastDiscretFace.cxx, Geom2dGcc_Circ2d2TanOnIter.cxx, Geom2dInt_Geom2dCurveTool.cxx, IntPolyh_MaillageAffinage.cxx.

- Protection against calling of math functions of infinite arguments has been added in BRepCheck_Edge.cxx, BRepLib.cxx, CSLib_NormalPolyDef.cxx, Extrema_FuncExtPC.gxx, Extrema_GExtPC.gxx, Extrema_GLocateExtPC.gxx, Intf_InterferencePolygonPolyhedron.gxx, ShapeAnalysis_Surface.cxx, ShapeAnalysis_TransferParametersProj.cxx, ShapeAnalysis_Wire.cxx, math_FunctionSetRoot.cxx.

- Proper initialization of local variables is done in BOPAlgo_PaveFiller_6.cxx, XSDRAWSTLVRML.cxx.

- Inconsistent usage of Standard_Boolean* to access integer data in HLR (caused by 0027772) is corrected

Some test cases have been updated to actual state.
mod - src/Adaptor3d/Adaptor3d_Curve.cxx Diff File
mod - src/Adaptor3d/Adaptor3d_Curve.hxx Diff File
mod - src/Adaptor3d/Adaptor3d_HCurve.hxx Diff File
mod - src/Adaptor3d/Adaptor3d_HCurve.lxx Diff File
mod - src/ApproxInt/ApproxInt_KnotTools.cxx Diff File
mod - src/BOPAlgo/BOPAlgo_PaveFiller_6.cxx Diff File
mod - src/BRepAdaptor/BRepAdaptor_Curve.cxx Diff File
mod - src/BRepAdaptor/BRepAdaptor_Curve.hxx Diff File
mod - src/BRepCheck/BRepCheck_Edge.cxx Diff File
mod - src/BRepClass3d/BRepClass3d_SClassifier.cxx Diff File
mod - src/BRepGProp/BRepGProp_Face.cxx Diff File
mod - src/BRepLib/BRepLib.cxx Diff File
mod - src/BRepMesh/BRepMesh_FastDiscretFace.cxx Diff File
mod - src/BRepOffset/BRepOffset_Tool.cxx Diff File
mod - src/BRepTest/BRepTest_FeatureCommands.cxx Diff File
mod - src/CSLib/CSLib_NormalPolyDef.cxx Diff File
mod - src/Draw/Draw_BasicCommands.cxx Diff File
mod - src/DrawResources/DrawDefault Diff File
mod - src/ElCLib/ElCLib.cxx Diff File
mod - src/Extrema/Extrema_FuncExtPC.gxx Diff File
mod - src/Extrema/Extrema_GenExtCS.cxx Diff File
mod - src/Extrema/Extrema_GExtPC.gxx Diff File
mod - src/Extrema/Extrema_GLocateExtPC.gxx Diff File
mod - src/Geom2dGcc/Geom2dGcc_Circ2d2TanOnIter.cxx Diff File
mod - src/Geom2dInt/Geom2dInt_Geom2dCurveTool.cxx Diff File
mod - src/GeomAdaptor/GeomAdaptor_Curve.cxx Diff File
mod - src/GeomAdaptor/GeomAdaptor_Curve.hxx Diff File
mod - src/HLRAlgo/HLRAlgo_PolyData.cxx Diff File
mod - src/HLRAlgo/HLRAlgo_PolyInternalData.cxx Diff File
mod - src/HLRBRep/HLRBRep_BiPnt2D.hxx Diff File
mod - src/IntPolyh/IntPolyh_MaillageAffinage.cxx Diff File
mod - src/math/math_FunctionRoots.cxx Diff File
mod - src/math/math_FunctionSetRoot.cxx Diff File
mod - src/QABugs/QABugs_11.cxx Diff File
mod - src/ShapeAnalysis/ShapeAnalysis_Surface.cxx Diff File
mod - src/ShapeAnalysis/ShapeAnalysis_TransferParametersProj.cxx Diff File
mod - src/ShapeAnalysis/ShapeAnalysis_Wire.cxx Diff File
mod - src/ShapeFix/ShapeFix_EdgeProjAux.cxx Diff File
mod - src/Standard/Standard_Real.cxx Diff File
mod - src/Standard/Standard_Real.hxx Diff File
mod - src/XSDRAWSTLVRML/XSDRAWSTLVRML.cxx Diff File
mod - tests/bugs/fclasses/bug6143 Diff File
mod - tests/bugs/moddata_1/bug22759 Diff File
mod - tests/bugs/vis/bug23226 Diff File
mod - tests/offset/with_intersect_20/J9 Diff File
mod - tests/offset/with_intersect_80/J9 Diff File
mod - tests/offset/with_intersect_80/K8 Diff File
mod - tests/v3d/mesh/B7 Diff File