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FP_NORMAL, FP_SUBNORMAL, FP_ZERO, FP_INFINITE, FP_NAN – cppreference.com

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definiert in Header

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#define FP_NORMAL /*implementation defined*/

(seit C++11)

#define FP_SUBNORMAL /*implementation defined*/

(seit C++11)

#define FP_ZERO /*implementation defined*/

(seit C++11)

#define FP_INFINITE /*implementation defined*/

(seit C++11)

#define FP_NAN /*implementation defined*/

(seit C++11)

Die FP_NORMAL, FP_SUBNORMAL, FP_ZERO, FP_INFINITE, FP_NAN Makros jeweils eine eigene Kategorie von Gleitkommazahlen. Sie alle zu einem Ganzzahlkonstantenausdruck zu erweitern .

Original:

The FP_NORMAL, FP_SUBNORMAL, FP_ZERO, FP_INFINITE, FP_NAN macros each represent a distinct category of floating-point numbers. They all expand to an integer constant expression.

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Constant

Original:

Constant

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Explanation
FP_NORMAL

zeigt an, dass der Wert normal, dh nicht eine Unendlichkeit, subnormal, not-a-Zahl oder Null

Original:

indicates that the value is normal, i.e. not an infinity, subnormal, not-a-number or zero

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FP_SUBNORMAL

zeigt an, dass der Wert subnormal ist

Original:

indicates that the value is subnormal

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FP_ZERO

anzeigt, dass die positiven oder negativen Wert Null ist

Original:

indicates that the value is positive or negative zero

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FP_INFINITE

zeigt an, dass der Wert nicht darstellbar ist durch den zugrunde liegenden Typ (positiv oder negativ unendlich)

Original:

indicates that the value is not representable by the underlying type (positive or negative infinity)

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FP_NAN

zeigt an, dass der Wert nicht-a-Zahl ist (NaN)

Original:

indicates that the value is not-a-number (NaN)

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Siehe auch

kategorisiert den angegebenen Gleitkommawert

Original:

categorizes the given floating point value

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