source: trunk/src/xmlpatterns/data/qschemanumeric.cpp@ 780

Last change on this file since 780 was 651, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.2 sources.

File size: 3.1 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the QtXmlPatterns module of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
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** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include <math.h>
43
44#include "qabstractfloat_p.h"
45#include "qboolean_p.h"
46#include "qbuiltintypes_p.h"
47#include "qcommonvalues_p.h"
48#include "qdecimal_p.h"
49#include "qinteger_p.h"
50
51#include "qschemanumeric_p.h"
52
53/**
54 * @file Contains class Numeric. This file was originally called qnumeric.cpp,
55 * but was renamed to stay consistent with qschemanumeric_p.h
56 */
57
58QT_BEGIN_NAMESPACE
59
60using namespace QPatternist;
61
62AtomicValue::Ptr Numeric::fromLexical(const QString &number)
63{
64 Q_ASSERT(!number.isEmpty());
65 Q_ASSERT_X(!number.contains(QLatin1Char('e')) &&
66 !number.contains(QLatin1Char('E')),
67 Q_FUNC_INFO, "Should not contain any e/E");
68
69 if(number.contains(QLatin1Char('.'))) /* an xs:decimal. */
70 return Decimal::fromLexical(number);
71 else /* It's an integer, of some sort. E.g, -3, -2, -1, 0, 1, 2, 3 */
72 return Integer::fromLexical(number);
73}
74
75xsDouble Numeric::roundFloat(const xsDouble val)
76{
77 if(qIsInf(val) || AbstractFloat<true>::isEqual(val, 0.0))
78 return val;
79 else if(qIsNaN(val))
80 return val;
81 else
82 {
83 if(val >= -0.5 && val < 0)
84 return -0.0;
85 else
86 return ::floor(val + 0.5);
87
88 }
89}
90
91QT_END_NAMESPACE
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