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//static const char* sccsid = "@(#)Expr_RUIterator.cxx 3.2 95/01/10"; // Do not delete this line. Used by sccs.
// Copyright: Matra-Datavision 1991
// File: Expr_RUIterator.cxx
// Created: Thu Jun 13 17:17:50 1991
// Author: Arnaud BOUZY
// <adn>
#include <Expr_RUIterator.ixx>
#include <Standard_NoMoreObject.hxx>
#include <Standard_NoSuchObject.hxx>
#include <Expr_RelationIterator.hxx>
#include <Expr_UnknownIterator.hxx>
#include <Expr_SingleRelation.hxx>
#include <Expr.hxx>
Expr_RUIterator::Expr_RUIterator (const Handle(Expr_GeneralRelation)& rel)
{
Expr_RelationIterator ri(rel);
Handle(Expr_SingleRelation) srel;
Handle(Expr_NamedUnknown) var;
myCurrent =1;
while (ri.More()) {
srel = ri.Value();
ri.Next();
Expr_UnknownIterator ui1(srel->FirstMember());
while (ui1.More()) {
var = ui1.Value();
ui1.Next();
if (!myMap.Contains(var)) {
myMap.Add(var);
}
}
Expr_UnknownIterator ui2(srel->SecondMember());
while (ui2.More()) {
var = ui2.Value();
ui2.Next();
if (!myMap.Contains(var)) {
myMap.Add(var);
}
}
}
}
Standard_Boolean Expr_RUIterator::More () const
{
return (myCurrent <= myMap.Extent());
}
void Expr_RUIterator::Next ()
{
if (!More()) {
Standard_NoMoreObject::Raise();
}
myCurrent++;
}
Handle(Expr_NamedUnknown) Expr_RUIterator::Value () const
{
return myMap(myCurrent);
}
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