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59 lines
1.8 KiB
C++
Executable File
59 lines
1.8 KiB
C++
Executable File
//static const char* sccsid = "@(#)Expr_LessThan.cxx 3.2 95/01/10"; // Do not delete this line. Used by sccs.
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// Copyright: Matra-Datavision 1991
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// File: Expr_LessThan.cxx
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// Created: Thu Jun 13 13:50:04 1991
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// Author: Arnaud BOUZY
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// <adn>
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#include <Expr_LessThan.ixx>
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#include <Expr_NumericValue.hxx>
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#include <Expr.hxx>
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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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