[2] | 1 | /****************************************************************************
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| 2 | **
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| 3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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[561] | 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation ([email protected])
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[2] | 6 | **
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| 7 | ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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| 15 | **
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| 16 | ** GNU Lesser General Public License Usage
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| 17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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| 18 | ** General Public License version 2.1 as published by the Free Software
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| 19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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| 20 | ** packaging of this file. Please review the following information to
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| 21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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| 22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| 23 | **
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[561] | 24 | ** In addition, as a special exception, Nokia gives you certain additional
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| 25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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| 26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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[2] | 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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[561] | 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at [email protected].
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[2] | 38 | ** $QT_END_LICENSE$
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| 39 | **
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| 40 | ****************************************************************************/
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| 41 |
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| 42 | /*
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| 43 | * @file
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| 44 | * @short This file is included by qatomicmathematicians_p.h
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| 45 | * if you need some includes, put them in qabstractfloatmathematician_p.h, outside of the namespace.
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| 46 | */
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| 47 |
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| 48 | template <const bool isDouble>
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| 49 | Item AbstractFloatMathematician<isDouble>::calculate(const Item &o1,
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| 50 | const Operator op,
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| 51 | const Item &o2,
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| 52 | const QExplicitlySharedDataPointer<DynamicContext> &context) const
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| 53 | {
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| 54 | const Numeric *const num1 = o1.template as<Numeric>();
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| 55 | const Numeric *const num2 = o2.template as<Numeric>();
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| 56 | switch(op)
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| 57 | {
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| 58 | case Div:
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| 59 | return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() / num2->toDouble()));
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| 60 | case IDiv:
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| 61 | {
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| 62 | if(num1->isNaN() || num2->isNaN())
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| 63 | {
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| 64 | context->error(QtXmlPatterns::tr("No operand in an integer division, %1, can be %2.")
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| 65 | .arg(formatKeyword("idiv"))
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| 66 | .arg(formatData("NaN")),
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| 67 | ReportContext::FOAR0002, this);
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| 68 | }
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| 69 | else if(num1->isInf())
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| 70 | {
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| 71 | context->error(QtXmlPatterns::tr("The first operand in an integer division, %1, cannot be infinity (%2).")
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| 72 | .arg(formatKeyword("idiv"))
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| 73 | .arg(formatData("INF")),
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| 74 | ReportContext::FOAR0002, this);
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| 75 | }
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| 76 | else if(num2->toInteger() == 0)
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| 77 | context->error(QtXmlPatterns::tr("The second operand in a division, %1, cannot be zero (%2).")
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| 78 | .arg(formatKeyword("idiv"))
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| 79 | .arg(formatData("0")),
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| 80 | ReportContext::FOAR0001, this);
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| 81 |
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| 82 | return Integer::fromValue(static_cast<xsInteger>(num1->toDouble() / num2->toDouble()));
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| 83 | }
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| 84 | case Substract:
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| 85 | return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() - num2->toDouble()));
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| 86 | case Mod:
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| 87 | return toItem(AbstractFloat<isDouble>::fromValue(::fmod(num1->toDouble(), num2->toDouble())));
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| 88 | case Multiply:
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| 89 | return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() * num2->toDouble()));
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| 90 | case Add:
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| 91 | return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() + num2->toDouble()));
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| 92 | }
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| 93 |
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| 94 | Q_ASSERT(false);
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| 95 | return Item(); /* GCC unbarfer. */
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| 96 | }
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| 97 |
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