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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.
** $QT_END_LICENSE$
**
****************************************************************************/
/*
* @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. */
}
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