src/xmlpatterns/data/qinteger.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include "qbuiltintypes_p.h"
       
    43 #include "qitem_p.h"
       
    44 #include "qvalidationerror_p.h"
       
    45 
       
    46 #include "qinteger_p.h"
       
    47 
       
    48 QT_BEGIN_NAMESPACE
       
    49 
       
    50 using namespace QPatternist;
       
    51 
       
    52 Item Integer::fromValue(const xsInteger num)
       
    53 {
       
    54     return toItem(Integer::Ptr(new Integer(num)));
       
    55 }
       
    56 
       
    57 AtomicValue::Ptr Integer::fromLexical(const QString &strNumeric)
       
    58 {
       
    59     bool conversionOk = false;
       
    60     const xsInteger num = strNumeric.toLongLong(&conversionOk);
       
    61 
       
    62     if(conversionOk)
       
    63         return AtomicValue::Ptr(new Integer(num));
       
    64     else
       
    65         return ValidationError::createError();
       
    66 }
       
    67 
       
    68 Integer::Integer(const xsInteger num) : m_value(num)
       
    69 {
       
    70 }
       
    71 
       
    72 bool Integer::evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const
       
    73 {
       
    74     return m_value != 0;
       
    75 }
       
    76 
       
    77 QString Integer::stringValue() const
       
    78 {
       
    79     return QString::number(m_value);
       
    80 }
       
    81 
       
    82 ItemType::Ptr Integer::type() const
       
    83 {
       
    84     return BuiltinTypes::xsInteger;
       
    85 }
       
    86 
       
    87 xsDouble Integer::toDouble() const
       
    88 {
       
    89     return static_cast<xsDouble>(m_value);
       
    90 }
       
    91 
       
    92 xsInteger Integer::toInteger() const
       
    93 {
       
    94     return m_value;
       
    95 }
       
    96 
       
    97 xsFloat Integer::toFloat() const
       
    98 {
       
    99     return static_cast<xsFloat>(m_value);
       
   100 }
       
   101 
       
   102 xsDecimal Integer::toDecimal() const
       
   103 {
       
   104     return static_cast<xsDecimal>(m_value);
       
   105 }
       
   106 
       
   107 Numeric::Ptr Integer::round() const
       
   108 {
       
   109     /* xs:integerS never has a mantissa. */
       
   110     return Numeric::Ptr(const_cast<Integer *>(this));
       
   111 }
       
   112 
       
   113 Numeric::Ptr Integer::roundHalfToEven(const xsInteger /*scale*/) const
       
   114 {
       
   115     return Numeric::Ptr(const_cast<Integer *>(this));
       
   116 }
       
   117 
       
   118 Numeric::Ptr Integer::floor() const
       
   119 {
       
   120     return Numeric::Ptr(const_cast<Integer *>(this));
       
   121 }
       
   122 
       
   123 Numeric::Ptr Integer::ceiling() const
       
   124 {
       
   125     return Numeric::Ptr(const_cast<Integer *>(this));
       
   126 }
       
   127 
       
   128 Numeric::Ptr Integer::abs() const
       
   129 {
       
   130     /* No reason to allocate an Integer if we're already absolute. */
       
   131     if(m_value < 0)
       
   132         return Numeric::Ptr(new Integer(qAbs(m_value)));
       
   133     else
       
   134         return Numeric::Ptr(const_cast<Integer *>(this));
       
   135 }
       
   136 
       
   137 bool Integer::isNaN() const
       
   138 {
       
   139     return false;
       
   140 }
       
   141 
       
   142 bool Integer::isInf() const
       
   143 {
       
   144     return false;
       
   145 }
       
   146 
       
   147 Item Integer::toNegated() const
       
   148 {
       
   149     return fromValue(-m_value);
       
   150 }
       
   151 
       
   152 bool Integer::isSigned() const
       
   153 {
       
   154     return true;
       
   155 }
       
   156 
       
   157 qulonglong Integer::toUnsignedInteger() const
       
   158 {
       
   159     Q_ASSERT_X(false, Q_FUNC_INFO,
       
   160                "It makes no sense to call this function, see Numeric::toUnsignedInteger().");
       
   161     return 0;
       
   162 }
       
   163 
       
   164 QT_END_NAMESPACE