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fpclassify

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C
 
Numerics
 
Gemeinsame mathematischen Funktionen
Funktionen
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Functions
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Grundlegende Bedienung
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Basic operations
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remainder(C99)
remquo(C99)
fma(C99)
fmax(C99)
fmin(C99)
fdim(C99)
nan
nanf
nanl		(C99)
(C99)
(C99)
Exponentialfunktionen
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Exponential functions
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exp
exp2(C99)
expm1(C99)
log
log10
log1p(C99)
log2(C99)
Power-Funktionen
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Power functions
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sqrt
cbrt(C99)
hypot(C99)
pow
Trigonometrische und hyperbolische Funktionen
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Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C99)
acosh(C99)
atanh(C99)
Fehler-und Gamma-Funktionen
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Error and gamma functions
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erf(C99)
erfc(C99)
lgamma(C99)
tgamma(C99)
Nächste ganze Zahl Fließkomma-Operationen
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Nearest integer floating point operations
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ceil
floor
round
lround
llround		(C99)
(C99)
(C99)
trunc(C99)
nearbyint(C99)
rint
lrint
llrint		(C99)
(C99)
(C99)
Floating-Point-Manipulation Funktionen
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Floating point manipulation functions
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ldexp
scalbn
scalbln		(C99)
(C99)
ilogb(C99)
logb(C99)
Klassifizierung
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Classification
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fpclassify(C99)
isfinite(C99)
isinf(C99)
isnan(C99)
isnormal(C99)
signbit(C99)
Makro Konstanten
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Macro constants
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definiert in Header <math.h>
#define fpclassify(arg) /* implementation defined */
Kategorisiert Gleitkommawert arg in den folgenden Kategorien: Null, subnormal, normal, unendlichen, NAN oder die Implementierung definiert Kategorie. Das Makro gibt einen ganzzahligen Wert .
Original:
Categorizes floating point value arg into the following categories: zero, subnormal, normal, infinite, NAN, or implementation-defined category. The macro returns an integral value.
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[Bearbeiten] Parameter

arg -
Floating-Point-Wert
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floating point value
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[Bearbeiten] Rückgabewert

Einer der 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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[Bearbeiten] Siehe auch

(C99)
prüft, ob die angegebene Zahl hat endlichen Wert
Original:
checks if the given number has finite value
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(Funktion) [edit]
(C99)
prüft, ob die angegebene Zahl unendlich ist
Original:
checks if the given number is infinite
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(Funktion) [edit]
(C99)
prüft, ob die angegebene Zahl ist NaN
Original:
checks if the given number is NaN
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(Funktion) [edit]
(C99)
prüft, ob die gegebene Anzahl normal ist
Original:
checks if the given number is normal
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(Funktion) [edit]
C++ documentation for fpclassify
Von „https://de.cppreference.com/mwiki/index.php?title=c/numeric/math/fpclassify&oldid=26044“