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diff --git a/src/testlib/qbenchmark.h b/src/testlib/qbenchmark.h
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtTest 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QBENCHMARK_H
+#define QBENCHMARK_H
+
+#include <QtTest/qtest_global.h>
+#include <QtTest/qbenchmarkmetric.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Test)
+
+namespace QTest
+{
+
+//
+//  W A R N I N G
+//  -------------
+//
+// The QBenchmarkIterationController class is not a part of the
+// QTestlib API. It exists purely as an implementation detail.
+//
+//
+class Q_TESTLIB_EXPORT QBenchmarkIterationController
+{
+public:
+    enum RunMode { RepeatUntilValidMeasurement, RunOnce };
+    QBenchmarkIterationController();
+    QBenchmarkIterationController(RunMode runMode);
+    ~QBenchmarkIterationController();
+    bool isDone();
+    void next();
+    int i;
+};
+
+}
+
+// --- BEGIN public API ---
+
+#define QBENCHMARK \
+    for (QTest::QBenchmarkIterationController __iteration_controller; \
+            __iteration_controller.isDone() == false; __iteration_controller.next())
+
+#define QBENCHMARK_ONCE \
+    for (QTest::QBenchmarkIterationController __iteration_controller(QTest::QBenchmarkIterationController::RunOnce); \
+            __iteration_controller.isDone() == false; __iteration_controller.next())
+
+namespace QTest
+{
+    void Q_TESTLIB_EXPORT setBenchmarkResult(qreal result, QBenchmarkMetric metric);
+}
+
+// --- END public API ---
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QBENCHMARK_H