1 // Created on: 1991-02-06
2 // Created by: Arnaud BOUZY
3 // Copyright (c) 1991-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _Expr_RUIterator_HeaderFile
18 #define _Expr_RUIterator_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Expr_MapOfNamedUnknown.hxx>
25 #include <Standard_Integer.hxx>
26 #include <Standard_Boolean.hxx>
27 class Standard_NoMoreObject;
28 class Standard_NoSuchObject;
29 class Expr_GeneralRelation;
30 class Expr_NamedUnknown;
33 //! Iterates on NamedUnknowns in a GeneralRelation.
41 //! Creates an iterator on every NamedUnknown contained in
43 Standard_EXPORT Expr_RUIterator(const Handle(Expr_GeneralRelation)& rel);
45 //! Returns False if on other unknown remains.
46 Standard_EXPORT Standard_Boolean More() const;
48 Standard_EXPORT void Next();
50 //! Returns current NamedUnknown.
51 //! Raises exception if no more unknowns remain.
52 Standard_EXPORT Handle(Expr_NamedUnknown) Value() const;
67 Expr_MapOfNamedUnknown myMap;
68 Standard_Integer myCurrent;
79 #endif // _Expr_RUIterator_HeaderFile