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 // Created on: 1990-12-11
 // Created by: Remi Lequette
 // Copyright (c) 1990-1999 Matra Datavision
 // Copyright (c) 1999-2014 OPEN CASCADE SAS
 //
 // This file is part of Open CASCADE Technology software library.
 //
 // This library is free software; you can redistribute it and/or modify it under
 // the terms of the GNU Lesser General Public License version 2.1 as published
 // by the Free Software Foundation, with special exception defined in the file
 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
 // distribution for complete text of the license and disclaimer of any warranty.
 //
 // Alternatively, this file may be used under the terms of Open CASCADE
 // commercial license or contractual agreement.
 
 #ifndef _TopoDS_HeaderFile
 #define _TopoDS_HeaderFile
 
 #include <Standard.hxx>
 #include <Standard_DefineAlloc.hxx>
 #include <Standard_TypeMismatch.hxx>
 #include <TopAbs_ShapeEnum.hxx>
 #include <TopoDS_Shape.hxx>
 
 class TopoDS_Vertex;
 class TopoDS_Shape;
 class TopoDS_Edge;
 class TopoDS_Wire;
 class TopoDS_Face;
 class TopoDS_Shell;
 class TopoDS_Solid;
 class TopoDS_CompSolid;
 class TopoDS_Compound;
 class TopoDS_HShape;
 class TopoDS_TShape;
 class TopoDS_TVertex;
 class TopoDS_TEdge;
 class TopoDS_TWire;
 class TopoDS_TFace;
 class TopoDS_TShell;
 class TopoDS_TSolid;
 class TopoDS_TCompSolid;
 class TopoDS_TCompound;
 class TopoDS_Builder;
 class TopoDS_Iterator;
 
 //! Provides methods to cast objects of class TopoDS_Shape to more specialized
 //! sub-classes. The types are not verified before casting. If the type does
 //! not match, a Standard_TypeMismatch exception is thrown. Below are examples
 //! of correct and incorrect casts:
 //!
 //! Correct:
 //! @code
 //! TopoDS_Shape aShape = ...; // aShape->ShapeType() == TopAbs_VERTEX
 //! const TopoDS_Vertex& aVertex = TopoDS::Vertex(aShape);
 //! @endcode
 //!
 //! Incorrect (will throw a Standard_TypeMismatch exception):
 //! @code
 //! TopoDS_Shape aShape = ...; // aShape->ShapeType() == TopAbs_VERTEX
 //! const TopoDS_Face& face = TopoDS::Edge(aShape);
 //! @endcode
 namespace TopoDS
 {
 //! Casts shape theShape to the more specialized return type, Vertex.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Vertex
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline const TopoDS_Vertex& Vertex(const TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false : theShape.ShapeType() != TopAbs_VERTEX,
                                  "TopoDS::Vertex");
   return *(TopoDS_Vertex*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, Vertex.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Vertex
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline TopoDS_Vertex& Vertex(TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false : theShape.ShapeType() != TopAbs_VERTEX,
                                  "TopoDS::Vertex");
   return *(TopoDS_Vertex*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, Edge.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Edge
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline const TopoDS_Edge& Edge(const TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false : theShape.ShapeType() != TopAbs_EDGE,
                                  "TopoDS::Edge");
   return *(TopoDS_Edge*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, Edge.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Edge
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline TopoDS_Edge& Edge(TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false : theShape.ShapeType() != TopAbs_EDGE,
                                  "TopoDS::Edge");
   return *(TopoDS_Edge*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, Wire.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Wire
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline const TopoDS_Wire& Wire(const TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false : theShape.ShapeType() != TopAbs_WIRE,
                                  "TopoDS::Wire");
   return *(TopoDS_Wire*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, Wire.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Wire
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline TopoDS_Wire& Wire(TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false : theShape.ShapeType() != TopAbs_WIRE,
                                  "TopoDS::Wire");
   return *(TopoDS_Wire*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, Face.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Face
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline const TopoDS_Face& Face(const TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false : theShape.ShapeType() != TopAbs_FACE,
                                  "TopoDS::Face");
   return *(TopoDS_Face*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, Face.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Face
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline TopoDS_Face& Face(TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false : theShape.ShapeType() != TopAbs_FACE,
                                  "TopoDS::Face");
   return *(TopoDS_Face*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, Shell.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Shell
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline const TopoDS_Shell& Shell(const TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false : theShape.ShapeType() != TopAbs_SHELL,
                                  "TopoDS::Shell");
   return *(TopoDS_Shell*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, Shell.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Shell
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline TopoDS_Shell& Shell(TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false : theShape.ShapeType() != TopAbs_SHELL,
                                  "TopoDS::Shell");
   return *(TopoDS_Shell*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, Solid.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Solid
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline const TopoDS_Solid& Solid(const TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false : theShape.ShapeType() != TopAbs_SOLID,
                                  "TopoDS::Solid");
   return *(TopoDS_Solid*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, Solid.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Solid
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline TopoDS_Solid& Solid(TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false : theShape.ShapeType() != TopAbs_SOLID,
                                  "TopoDS::Solid");
   return *(TopoDS_Solid*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, CompSolid.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_CompSolid
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline const TopoDS_CompSolid& CompSolid(const TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false
                                                    : theShape.ShapeType() != TopAbs_COMPSOLID,
                                  "TopoDS::CompSolid");
   return *(TopoDS_CompSolid*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, CompSolid.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_CompSolid
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline TopoDS_CompSolid& CompSolid(TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false
                                                    : theShape.ShapeType() != TopAbs_COMPSOLID,
                                  "TopoDS::CompSolid");
   return *(TopoDS_CompSolid*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, Compound.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Compound
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline const TopoDS_Compound& Compound(const TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false
                                                    : theShape.ShapeType() != TopAbs_COMPOUND,
                                  "TopoDS::Compound");
   return *(TopoDS_Compound*)&theShape;
 }
 
 //! Casts shape theShape to the more specialized return type, Compound.
 //! @param theShape the shape to be cast
 //! @return the casted shape as TopoDS_Compound
 //! @throws Standard_TypeMismatch if theShape cannot be cast to this return type.
 inline TopoDS_Compound& Compound(TopoDS_Shape& theShape)
 {
   Standard_TypeMismatch_Raise_if(theShape.IsNull() ? false
                                                    : theShape.ShapeType() != TopAbs_COMPOUND,
                                  "TopoDS::Compound");
   return *(TopoDS_Compound*)&theShape;
 }
 } // namespace TopoDS
 
 #endif // _TopoDS_HeaderFile

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