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| 2 | ** |
| 3 | ** Copyright (C) 2019 The Qt Company Ltd. |
| 4 | ** Contact: https://www.qt.io/licensing/ |
| 5 | ** |
| 6 | ** This file is part of the QtCore module of the Qt Toolkit. |
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| 8 | ** $QT_BEGIN_LICENSE:LGPL$ |
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| 17 | ** GNU Lesser General Public License Usage |
| 18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
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| 24 | ** |
| 25 | ** GNU General Public License Usage |
| 26 | ** Alternatively, this file may be used under the terms of the GNU |
| 27 | ** General Public License version 2.0 or (at your option) the GNU General |
| 28 | ** Public license version 3 or any later version approved by the KDE Free |
| 29 | ** Qt Foundation. The licenses are as published by the Free Software |
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| 35 | ** |
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| 38 | ****************************************************************************/ |
| 39 | |
| 40 | #ifndef QNUMERIC_H |
| 41 | #define QNUMERIC_H |
| 42 | |
| 43 | #include <QtCore/qglobal.h> |
| 44 | |
| 45 | QT_BEGIN_NAMESPACE |
| 46 | |
| 47 | Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsInf(double d); |
| 48 | Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsNaN(double d); |
| 49 | Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsFinite(double d); |
| 50 | Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int qFpClassify(double val); |
| 51 | Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsInf(float f); |
| 52 | Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsNaN(float f); |
| 53 | Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsFinite(float f); |
| 54 | Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int qFpClassify(float val); |
| 55 | #if QT_CONFIG(signaling_nan) |
| 56 | Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qSNaN(); |
| 57 | #endif |
| 58 | Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qQNaN(); |
| 59 | Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qInf(); |
| 60 | |
| 61 | Q_CORE_EXPORT quint32 qFloatDistance(float a, float b); |
| 62 | Q_CORE_EXPORT quint64 qFloatDistance(double a, double b); |
| 63 | |
| 64 | #define Q_INFINITY (QT_PREPEND_NAMESPACE(qInf)()) |
| 65 | #if QT_CONFIG(signaling_nan) |
| 66 | # define Q_SNAN (QT_PREPEND_NAMESPACE(qSNaN)()) |
| 67 | #endif |
| 68 | #define Q_QNAN (QT_PREPEND_NAMESPACE(qQNaN)()) |
| 69 | |
| 70 | QT_END_NAMESPACE |
| 71 | |
| 72 | #endif // QNUMERIC_H |
| 73 |