1 // Created on: 1991-06-10
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.
19 #include <Expr_Equal.hxx>
20 #include <Expr_GeneralExpression.hxx>
21 #include <Expr_GeneralRelation.hxx>
22 #include <Standard_NumericError.hxx>
23 #include <Standard_Type.hxx>
24 #include <TCollection_AsciiString.hxx>
26 IMPLEMENT_STANDARD_RTTIEXT(Expr_Equal,Expr_SingleRelation)
28 Expr_Equal::Expr_Equal (const Handle(Expr_GeneralExpression)& exp1, const Handle(Expr_GeneralExpression)& exp2)
31 SetSecondMember(exp2);
34 Standard_Boolean Expr_Equal::IsSatisfied () const
36 Handle(Expr_GeneralExpression) fm = FirstMember();
37 Handle(Expr_GeneralExpression) sm = SecondMember();
38 fm = fm->Simplified();
39 sm = sm->Simplified();
40 return (fm->IsIdentical(sm));
43 Handle(Expr_GeneralRelation) Expr_Equal::Simplified () const
45 Handle(Expr_GeneralExpression) fm = FirstMember();
46 Handle(Expr_GeneralExpression) sm = SecondMember();
47 return new Expr_Equal(fm->Simplified(),sm->Simplified());
50 void Expr_Equal::Simplify ()
52 Handle(Expr_GeneralExpression) fm = FirstMember();
53 Handle(Expr_GeneralExpression) sm = SecondMember();
54 SetFirstMember(fm->Simplified());
55 SetSecondMember(sm->Simplified());
58 Handle(Expr_GeneralRelation) Expr_Equal::Copy () const
60 return new Expr_Equal(Expr::CopyShare(FirstMember()),
61 Expr::CopyShare(SecondMember()));
64 TCollection_AsciiString Expr_Equal::String() const
66 return FirstMember()->String() + " = " + SecondMember()->String();