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76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
// Created on: 1991-06-13
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// Created by: Arnaud BOUZY
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// Copyright (c) 1991-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <Expr.hxx>
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#include <Expr_GeneralExpression.hxx>
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#include <Expr_GeneralRelation.hxx>
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#include <Expr_LessThan.hxx>
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#include <Expr_NumericValue.hxx>
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#include <Standard_NumericError.hxx>
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#include <Standard_Type.hxx>
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#include <TCollection_AsciiString.hxx>
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IMPLEMENT_STANDARD_RTTIEXT(Expr_LessThan,Expr_SingleRelation)
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Expr_LessThan::Expr_LessThan (const Handle(Expr_GeneralExpression)& exp1, const Handle(Expr_GeneralExpression)& exp2)
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{
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SetFirstMember(exp1);
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SetSecondMember(exp2);
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}
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Standard_Boolean Expr_LessThan::IsSatisfied () const
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{
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Handle(Expr_GeneralExpression) fm = FirstMember();
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Handle(Expr_GeneralExpression) sm = SecondMember();
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fm = fm->Simplified();
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sm = sm->Simplified();
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if (fm->IsKind(STANDARD_TYPE(Expr_NumericValue))) {
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if (sm->IsKind(STANDARD_TYPE(Expr_NumericValue))) {
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Handle(Expr_NumericValue) nfm = Handle(Expr_NumericValue)::DownCast(fm);
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Handle(Expr_NumericValue) nsm = Handle(Expr_NumericValue)::DownCast(sm);
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return (nfm->GetValue() < nsm->GetValue());
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}
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}
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return Standard_False;
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}
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Handle(Expr_GeneralRelation) Expr_LessThan::Simplified () const
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{
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Handle(Expr_GeneralExpression) fm = FirstMember();
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Handle(Expr_GeneralExpression) sm = SecondMember();
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return new Expr_LessThan(fm->Simplified(),sm->Simplified());
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}
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void Expr_LessThan::Simplify ()
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{
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Handle(Expr_GeneralExpression) fm = FirstMember();
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Handle(Expr_GeneralExpression) sm = SecondMember();
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SetFirstMember(fm->Simplified());
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SetSecondMember(sm->Simplified());
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}
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Handle(Expr_GeneralRelation) Expr_LessThan::Copy () const
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{
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return new Expr_LessThan(Expr::CopyShare(FirstMember()),
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Expr::CopyShare(SecondMember()));
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}
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TCollection_AsciiString Expr_LessThan::String() const
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{
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return FirstMember()->String() + " < " + SecondMember()->String();
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}
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