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diff --git a/src/xmlpatterns/data/qatomiccomparator.cpp b/src/xmlpatterns/data/qatomiccomparator.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtXmlPatterns module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QString>
+
+#include "qatomiccomparator_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+AtomicComparator::AtomicComparator()
+{
+}
+
+AtomicComparator::~AtomicComparator()
+{
+}
+
+AtomicComparator::ComparisonResult
+AtomicComparator::compare(const Item &,
+                          const AtomicComparator::Operator,
+                          const Item &) const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO, "This function should never be called.");
+    return LessThan;
+}
+
+QString AtomicComparator::displayName(const AtomicComparator::Operator op,
+                                      const ComparisonType type)
+{
+    Q_ASSERT(type == AsGeneralComparison || type == AsValueComparison);
+    if(type == AsGeneralComparison)
+    {
+        switch(op)
+        {
+            case OperatorEqual:
+                return QLatin1String("=");
+            case OperatorGreaterOrEqual:
+                return QLatin1String("<=");
+            case OperatorGreaterThan:
+                return QLatin1String("<");
+            case OperatorLessOrEqual:
+                return QLatin1String(">=");
+            case OperatorLessThanNaNLeast:
+            /* Fallthrough. */
+            case OperatorLessThanNaNGreatest:
+            /* Fallthrough. */
+            case OperatorLessThan:
+                return QLatin1String(">");
+            case OperatorNotEqual:
+                return QLatin1String("!=");
+        }
+    }
+
+    switch(op)
+    {
+        case OperatorEqual:
+            return QLatin1String("eq");
+        case OperatorGreaterOrEqual:
+            return QLatin1String("ge");
+        case OperatorGreaterThan:
+            return QLatin1String("gt");
+        case OperatorLessOrEqual:
+            return QLatin1String("le");
+        case OperatorLessThanNaNLeast:
+        /* Fallthrough. */
+        case OperatorLessThanNaNGreatest:
+        /* Fallthrough. */
+        case OperatorLessThan:
+            return QLatin1String("lt");
+        case OperatorNotEqual:
+            return QLatin1String("ne");
+    }
+
+    Q_ASSERT(false);
+    return QString(); /* GCC unbarfer. */
+}
+
+QT_END_NAMESPACE