1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the Qt Charts module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:GPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU
19** General Public License version 3 or (at your option) any later version
20** approved by the KDE Free Qt Foundation. The licenses are as published by
21** the Free Software Foundation and appearing in the file LICENSE.GPL3
22** included in the packaging of this file. Please review the following
23** information to ensure the GNU General Public License requirements will
24** be met: https://www.gnu.org/licenses/gpl-3.0.html.
25**
26** $QT_END_LICENSE$
27**
28****************************************************************************/
29
30// W A R N I N G
31// -------------
32//
33// This file is not part of the Qt Chart API. It exists purely as an
34// implementation detail. This header file may change from version to
35// version without notice, or even be removed.
36//
37// We mean it.
38
39#ifndef CHARTHELPERS_P_H
40#define CHARTHELPERS_P_H
41
42#include <QtCore/QtNumeric>
43#include <QtCore/QPointF>
44
45static inline bool isValidValue(qreal value)
46{
47 if (qIsNaN(d: value) || qIsInf(d: value)) {
48 qWarning(msg: "Ignored NaN, Inf, or -Inf value.");
49 return false;
50 }
51 return true;
52}
53
54static inline bool isValidValue(qreal x, qreal y)
55{
56 return (isValidValue(value: x) && isValidValue(value: y));
57}
58
59static inline bool isValidValue(const QPointF point)
60{
61 return (isValidValue(value: point.x()) && isValidValue(value: point.y()));
62}
63
64#endif // CHARTHELPERS_P_H
65

source code of qtcharts/src/charts/charthelpers_p.h