nan, nanf, nanl
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C
Thread-Unterstützung (C11)
Atomare Operationen (C11)
Gemeinsame mathematischen Funktionen
Funktionen
Original:
Functions
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Grundlegende Bedienung
Original:
Basic operations
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Exponentialfunktionen
Original:
Exponential functions
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Power-Funktionen
Original:
Power functions
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Trigonometrische und hyperbolische Funktionen
Original:
Trigonometric and hyperbolic functions
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Fehler-und Gamma-Funktionen
Original:
Error and gamma functions
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Nächste ganze Zahl Fließkomma-Operationen
Original:
Nearest integer floating point operations
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Floating-Point-Manipulation Funktionen
Original:
Floating point manipulation functions
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Klassifizierung
Original:
Classification
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fpclassify (C99)
isfinite (C99)
isinf (C99)
isnan (C99)
isnormal (C99)
signbit (C99)
Makro Konstanten
Original:
Macro constants
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definiert in Header <math.h>
float nanf( const char* arg );
double nan( const char* arg );
long double nanl( const char* arg );
Konvertiert die Implementierung definiert Zeichenkette
arg in die entsprechende ruhigen NaN Wert. Der Anruf std::nan("string") entspricht dem Anruf std::strtod ("NAN(string)", (char**)NULL ); .Original:
Converts the implementation-defined character string
arg into the corresponding quiet NaN value. The call std::nan("string") is equivalent to the call std::strtod ("NAN(string)", (char**)NULL );.The text has been machine-translated via Google Translate.
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[Bearbeiten] Parameter
arg
-
schmale Zeichenfolge, die den Inhalt einer NaN oder einer leeren Zeichenfolge
Original:
narrow character string identifying the contents of a NaN, or an empty string
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[Bearbeiten] Rückgabewert
Der Wert NaN, die zur Identifizierung von String
arg oder Null entspricht, wenn die implemntation nicht unterstützt ruhigen NaNs . Original:
The NaN value that corresponds to the identifying string
arg or zero if the implemntation does not support quiet NaNs. The text has been machine-translated via Google Translate.
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[Bearbeiten] Siehe auch
(C99)
prüft, ob die angegebene Zahl ist NaN
Original:
checks if the given number is NaN
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(Funktion) [edit]
C++ documentation for nan