1 // Created on: 1991-03-06
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.
18 #include <Expr_GeneralExpression.hxx>
19 #include <Expr_InvalidOperand.hxx>
20 #include <Expr_NamedUnknown.hxx>
21 #include <Expr_NotEvaluable.hxx>
22 #include <Standard_NumericError.hxx>
23 #include <Standard_OutOfRange.hxx>
24 #include <Standard_Type.hxx>
25 #include <TCollection_AsciiString.hxx>
27 IMPLEMENT_STANDARD_RTTIEXT(Expr_GeneralExpression,Standard_Transient)
29 Standard_Boolean Expr_GeneralExpression::IsShareable() const
31 return Standard_False;
34 Handle(Expr_GeneralExpression) Expr_GeneralExpression::NDerivative (const Handle(Expr_NamedUnknown)& X, const Standard_Integer N) const
37 throw Standard_OutOfRange();
39 Handle(Expr_GeneralExpression) first = Derivative(X);
41 return first->NDerivative(X,N-1);
47 Standard_Real Expr_GeneralExpression::EvaluateNumeric() const
49 if (ContainsUnknowns()) {
50 throw Expr_NotEvaluable();
52 Expr_Array1OfNamedUnknown tabvr(1,1);
53 TColStd_Array1OfReal tabvl(1,1);
54 return Evaluate(tabvr,tabvl);