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Diffstat (limited to 'src/xmlpatterns/data/qabstractfloatmathematician.cpp')
| -rw-r--r-- | src/xmlpatterns/data/qabstractfloatmathematician.cpp | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/xmlpatterns/data/qabstractfloatmathematician.cpp b/src/xmlpatterns/data/qabstractfloatmathematician.cpp new file mode 100644 index 0000000..94507b3 --- /dev/null +++ b/src/xmlpatterns/data/qabstractfloatmathematician.cpp @@ -0,0 +1,97 @@ +/**************************************************************************** +** +** 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 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. */ +} + |