diff -r 000000000000 -r 1918ee327afb src/xmlpatterns/data/qabstractfloatmathematician.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/data/qabstractfloatmathematician.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,97 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*
+ * @file
+ * @short This file is included by qatomicmathematicians_p.h
+ * if you need some includes, put them in qabstractfloatmathematician_p.h, outside of the namespace.
+ */
+
+template <const bool isDouble>
+Item AbstractFloatMathematician<isDouble>::calculate(const Item &o1,
+                                                          const Operator op,
+                                                          const Item &o2,
+                                                          const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+    const Numeric *const num1 = o1.template as<Numeric>();
+    const Numeric *const num2 = o2.template as<Numeric>();
+    switch(op)
+    {
+        case Div:
+            return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() / num2->toDouble()));
+        case IDiv:
+        {
+            if(num1->isNaN() || num2->isNaN())
+            {
+                context->error(QtXmlPatterns::tr("No operand in an integer division, %1, can be %2.")
+                                  .arg(formatKeyword("idiv"))
+                                  .arg(formatData("NaN")),
+                               ReportContext::FOAR0002, this);
+            }
+            else if(num1->isInf())
+            {
+                context->error(QtXmlPatterns::tr("The first operand in an integer division, %1, cannot be infinity (%2).")
+                                                 .arg(formatKeyword("idiv"))
+                                                 .arg(formatData("INF")),
+                               ReportContext::FOAR0002, this);
+            }
+            else if(num2->toInteger() == 0)
+                context->error(QtXmlPatterns::tr("The second operand in a division, %1, cannot be zero (%2).")
+                                                 .arg(formatKeyword("idiv"))
+                                                 .arg(formatData("0")),
+                               ReportContext::FOAR0001, this);
+
+            return Integer::fromValue(static_cast<xsInteger>(num1->toDouble() / num2->toDouble()));
+        }
+        case Substract:
+            return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() - num2->toDouble()));
+        case Mod:
+            return toItem(AbstractFloat<isDouble>::fromValue(::fmod(num1->toDouble(), num2->toDouble())));
+        case Multiply:
+            return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() * num2->toDouble()));
+        case Add:
+            return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() + num2->toDouble()));
+    }
+
+    Q_ASSERT(false);
+    return Item(); /* GCC unbarfer. */
+}
+