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//static const char* sccsid = "@(#)Expr_LessThan.cxx 3.2 95/01/10"; // Do not delete this line. Used by sccs.
// Copyright: Matra-Datavision 1991
// File: Expr_LessThan.cxx
// Created: Thu Jun 13 13:50:04 1991
// Author: Arnaud BOUZY
// <adn>
#include <Expr_LessThan.ixx>
#include <Expr_NumericValue.hxx>
#include <Expr.hxx>
Expr_LessThan::Expr_LessThan (const Handle(Expr_GeneralExpression)& exp1, const Handle(Expr_GeneralExpression)& exp2)
{
SetFirstMember(exp1);
SetSecondMember(exp2);
}
Standard_Boolean Expr_LessThan::IsSatisfied () const
{
Handle(Expr_GeneralExpression) fm = FirstMember();
Handle(Expr_GeneralExpression) sm = SecondMember();
fm = fm->Simplified();
sm = sm->Simplified();
if (fm->IsKind(STANDARD_TYPE(Expr_NumericValue))) {
if (sm->IsKind(STANDARD_TYPE(Expr_NumericValue))) {
Handle(Expr_NumericValue) nfm = Handle(Expr_NumericValue)::DownCast(fm);
Handle(Expr_NumericValue) nsm = Handle(Expr_NumericValue)::DownCast(sm);
return (nfm->GetValue() < nsm->GetValue());
}
}
return Standard_False;
}
Handle(Expr_GeneralRelation) Expr_LessThan::Simplified () const
{
Handle(Expr_GeneralExpression) fm = FirstMember();
Handle(Expr_GeneralExpression) sm = SecondMember();
return new Expr_LessThan(fm->Simplified(),sm->Simplified());
}
void Expr_LessThan::Simplify ()
{
Handle(Expr_GeneralExpression) fm = FirstMember();
Handle(Expr_GeneralExpression) sm = SecondMember();
SetFirstMember(fm->Simplified());
SetSecondMember(sm->Simplified());
}
Handle(Expr_GeneralRelation) Expr_LessThan::Copy () const
{
return new Expr_LessThan(Expr::CopyShare(FirstMember()),
Expr::CopyShare(SecondMember()));
}
TCollection_AsciiString Expr_LessThan::String() const
{
return FirstMember()->String() + " < " + SecondMember()->String();
}
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