src/corelib/global/qnumeric.h

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  41
  42 #ifndef QNUMERIC_H
  43 #define QNUMERIC_H
  44
  45 #include <QtCore/qglobal.h>
  46
  47 QT_BEGIN_HEADER
  48
  49 QT_BEGIN_NAMESPACE
  50
  51 QT_MODULE(Core)
  52
  53 Q_CORE_EXPORT bool qIsInf(double d);
  54 Q_CORE_EXPORT bool qIsNaN(double d);
  55 Q_CORE_EXPORT bool qIsFinite(double d);
  56 Q_CORE_EXPORT bool qIsInf(float f);
  57 Q_CORE_EXPORT bool qIsNaN(float f);
  58 Q_CORE_EXPORT bool qIsFinite(float f);
  59 Q_CORE_EXPORT double qSNaN();
  60 Q_CORE_EXPORT double qQNaN();
  61 Q_CORE_EXPORT double qInf();
  62
  63 #define Q_INFINITY (QT_PREPEND_NAMESPACE(qInf)())
  64 #define Q_SNAN (QT_PREPEND_NAMESPACE(qSNaN)())
  65 #define Q_QNAN (QT_PREPEND_NAMESPACE(qQNaN)())
  66
  67 QT_END_NAMESPACE
  68
  69 QT_END_HEADER
  70
  71 #endif // QNUMERIC_H