diff -r 000000000000 -r 1918ee327afb src/xmlpatterns/data/qdecimal.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/data/qdecimal.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,234 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <math.h>
+
+#include "qabstractfloat_p.h"
+#include "qatomictype_p.h"
+#include "qbuiltintypes_p.h"
+#include "qvalidationerror_p.h"
+
+#include "qdecimal_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+Decimal::Decimal(const xsDecimal num) : m_value(num)
+{
+}
+
+Decimal::Ptr Decimal::fromValue(const xsDecimal num)
+{
+    return Decimal::Ptr(new Decimal(num));
+}
+
+AtomicValue::Ptr Decimal::fromLexical(const QString &strNumeric)
+{
+    /* QString::toDouble() handles the whitespace facet. */
+    const QString strNumericTrimmed(strNumeric.trimmed());
+
+    /* Block these out, as QString::toDouble() supports them. */
+    if(strNumericTrimmed.compare(QLatin1String("-INF"), Qt::CaseInsensitive) == 0
+       || strNumericTrimmed.compare(QLatin1String("INF"), Qt::CaseInsensitive)  == 0
+       || strNumericTrimmed.compare(QLatin1String("+INF"), Qt::CaseInsensitive)  == 0
+       || strNumericTrimmed.compare(QLatin1String("nan"), Qt::CaseInsensitive)  == 0
+       || strNumericTrimmed.contains(QLatin1Char('e'))
+       || strNumericTrimmed.contains(QLatin1Char('E')))
+    {
+        return ValidationError::createError();
+    }
+
+    bool conversionOk = false;
+    const xsDecimal num = strNumericTrimmed.toDouble(&conversionOk);
+
+    if(conversionOk)
+        return AtomicValue::Ptr(new Decimal(num));
+    else
+        return ValidationError::createError();
+}
+
+bool Decimal::evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return !Double::isEqual(m_value, 0.0);
+}
+
+QString Decimal::stringValue() const
+{
+    return toString(m_value);
+}
+
+QString Decimal::toString(const xsDecimal value)
+{
+    /*
+     * If SV is in the value space of xs:integer, that is, if there are no
+     * significant digits after the decimal point, then the value is converted
+     * from an xs:decimal to an xs:integer and the resulting xs:integer is
+     * converted to an xs:string using the rule above.
+     */
+    if(Double::isEqual(::floor(value), value))
+    {
+        /* The static_cast is identical to Integer::toInteger(). */
+        return QString::number(static_cast<xsInteger>(value));
+    }
+    else
+    {
+        int sign;
+        int decimalPoint;
+        char *result = 0;
+        static_cast<void>(qdtoa(value, 0, 0, &decimalPoint, &sign, 0, &result));
+        /* If the copy constructor is used instead of QString::operator=(),
+         * it doesn't compile. I have no idea why. */
+        const QString qret(QString::fromLatin1(result));
+        delete result;
+
+        QString valueAsString;
+
+        if(sign)
+            valueAsString += QLatin1Char('-');
+
+        if(0 < decimalPoint)
+        {
+            valueAsString += qret.left(decimalPoint);
+            valueAsString += QLatin1Char('.');
+            if (qret.size() <= decimalPoint)
+                valueAsString += QLatin1Char('0');
+            else
+                valueAsString += qret.mid(decimalPoint);
+        }
+        else
+        {
+            valueAsString += QLatin1Char('0');
+            valueAsString += QLatin1Char('.');
+
+            for(int d = decimalPoint; d < 0; d++)
+                valueAsString += QLatin1Char('0');
+
+            valueAsString += qret;
+        }
+
+        return valueAsString;
+    }
+}
+
+ItemType::Ptr Decimal::type() const
+{
+    return BuiltinTypes::xsDecimal;
+}
+
+xsDouble Decimal::toDouble() const
+{
+    return static_cast<xsDouble>(m_value);
+}
+
+xsInteger Decimal::toInteger() const
+{
+    return static_cast<xsInteger>(m_value);
+}
+
+xsFloat Decimal::toFloat() const
+{
+    return static_cast<xsFloat>(m_value);
+}
+
+xsDecimal Decimal::toDecimal() const
+{
+    return m_value;
+}
+
+qulonglong Decimal::toUnsignedInteger() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "It makes no sense to call this function, see Numeric::toUnsignedInteger().");
+    return 0;
+}
+
+Numeric::Ptr Decimal::round() const
+{
+    return Numeric::Ptr(new Decimal(roundFloat(m_value)));
+}
+
+Numeric::Ptr Decimal::roundHalfToEven(const xsInteger /*scale*/) const
+{
+    return Numeric::Ptr();
+}
+
+Numeric::Ptr Decimal::floor() const
+{
+    return Numeric::Ptr(new Decimal(static_cast<xsDecimal>(::floor(m_value))));
+}
+
+Numeric::Ptr Decimal::ceiling() const
+{
+    return Numeric::Ptr(new Decimal(static_cast<xsDecimal>(ceil(m_value))));
+}
+
+Numeric::Ptr Decimal::abs() const
+{
+    return Numeric::Ptr(new Decimal(static_cast<xsDecimal>(fabs(m_value))));
+}
+
+bool Decimal::isNaN() const
+{
+    return false;
+}
+
+bool Decimal::isInf() const
+{
+    return false;
+}
+
+Item Decimal::toNegated() const
+{
+    if(AbstractFloat<true>::isEqual(m_value, 0.0))
+        return fromValue(0).data();
+    else
+        return fromValue(-m_value).data();
+}
+
+bool Decimal::isSigned() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "It makes no sense to call this function, see Numeric::isSigned().");
+    return false;
+}
+
+QT_END_NAMESPACE