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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*
* @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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