1 // Created on: 1991-01-14
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_GreaterThan_HeaderFile
18 #define _Expr_GreaterThan_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_Type.hxx>
23 #include <Expr_SingleRelation.hxx>
24 #include <Standard_Boolean.hxx>
25 class Standard_NumericError;
26 class Expr_GeneralExpression;
27 class Expr_GeneralRelation;
28 class TCollection_AsciiString;
31 class Expr_GreaterThan;
32 DEFINE_STANDARD_HANDLE(Expr_GreaterThan, Expr_SingleRelation)
35 class Expr_GreaterThan : public Expr_SingleRelation
41 //! Creates the relation <exp1> > <exp2>.
42 Standard_EXPORT Expr_GreaterThan(const Handle(Expr_GeneralExpression)& exp1, const Handle(Expr_GeneralExpression)& exp2);
44 Standard_EXPORT Standard_Boolean IsSatisfied() const Standard_OVERRIDE;
46 //! Returns a GeneralRelation after replacement of
47 //! NamedUnknowns by an associated expression, and after
48 //! values computation.
49 Standard_EXPORT Handle(Expr_GeneralRelation) Simplified() const Standard_OVERRIDE;
51 //! Replaces NamedUnknowns by associated expressions,
52 //! and computes values in <me>.
53 Standard_EXPORT void Simplify() Standard_OVERRIDE;
55 //! Returns a copy of <me> having the same unknowns and functions.
56 Standard_EXPORT Handle(Expr_GeneralRelation) Copy() const Standard_OVERRIDE;
58 //! returns a string representing <me> in a readable way.
59 Standard_EXPORT TCollection_AsciiString String() const Standard_OVERRIDE;
64 DEFINE_STANDARD_RTTIEXT(Expr_GreaterThan,Expr_SingleRelation)
84 #endif // _Expr_GreaterThan_HeaderFile