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FP_NORMAL, FP_SUBNORMAL, FP_ZERO, FP_INFINITE, FP_NAN

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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
Original:
Macro constants
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FP_NORMAL
FP_SUBNORMAL
FP_ZERO
FP_INFINITE
FP_NAN
(C99)
(C99)
(C99)
(C99)
(C99)
 
Defined in header <math.h>
#define FP_NORMAL    /*implementation defined*/
#define FP_SUBNORMAL /*implementation defined*/
#define FP_ZERO      /*implementation defined*/
#define FP_INFINITE  /*implementation defined*/
#define FP_NAN       /*implementation defined*/
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
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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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[Bearbeiten] Siehe auch

kategorisiert den angegebenen Gleitkommawert
Original:
categorizes the given floating point value
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(Funktion) [edit]
C++ documentation for FP_categories