std::fpclassify – cppreference.com

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definiert in Header `<cmath>`

`int fpclassify( float arg );`		(seit C++11)

`int fpclassify( double arg );`		(seit C++11)

`int fpclassify( long double arg );`		(seit C++11)

Kategorisiert Gleitkommawert arg in den folgenden Kategorien: Null, subnormal, normal, unendlichen, NAN oder die Implementierung definiert Kategorie .

Original:

Categorizes floating point value arg into the following categories: zero, subnormal, normal, infinite, NAN, or implementation-defined category.

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Parameter

arg

Floating-Point-Wert

Original:

floating point value

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Rückgabewert

eine FP_INFINITE, FP_NAN, FP_NORMAL, FP_SUBNORMAL, FP_ZERO oder Durchführung Typs, Angabe der Kategorie der arg .

Original:

one of FP_INFINITE, FP_NAN, FP_NORMAL, FP_SUBNORMAL, FP_ZERO or implementation-defined type, specifying the category of arg.

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Siehe auch


isfinite (C++11)	prüft, ob die angegebene Zahl hat endlichen Wert Original: checks if the given number has finite value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) [edit]

isinf (C++11)	prüft, ob die angegebene Zahl unendlich ist Original: checks if the given number is infinite The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) [edit]

isnan (C++11)	prüft, ob die angegebene Zahl ist NaN Original: checks if the given number is NaN The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) [edit]

isnormal (C++11)	prüft, ob die gegebene Anzahl normal ist Original: checks if the given number is normal The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) [edit]

numeric_limits	bietet eine Schnittstelle zur Abfrage von Eigenschaften aller grundlegenden numerischen Typen . Original: provides an interface to query properties of all fundamental numeric types. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Klassen-Template) [edit]