qnumeric.h

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#ifndef QNUMERIC_H
#define QNUMERIC_H

#include <QtCore/qglobal.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Core)

Q_CORE_EXPORT bool qIsInf(double d);
Q_CORE_EXPORT bool qIsNaN(double d);
Q_CORE_EXPORT bool qIsFinite(double d);
Q_CORE_EXPORT bool qIsInf(float f);
Q_CORE_EXPORT bool qIsNaN(float f);
Q_CORE_EXPORT bool qIsFinite(float f);
Q_CORE_EXPORT double qSNaN();
Q_CORE_EXPORT double qQNaN();
Q_CORE_EXPORT double qInf();

#define Q_INFINITY (QT_PREPEND_NAMESPACE(qInf)())
#define Q_SNAN (QT_PREPEND_NAMESPACE(qSNaN)())
#define Q_QNAN (QT_PREPEND_NAMESPACE(qQNaN)())

QT_END_NAMESPACE

QT_END_HEADER

#endif // QNUMERIC_H