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rint, lrint, llrint

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< c‎ | numeric‎ | math

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C
 
Numerics
 
Gemeinsame mathematischen Funktionen
Funktionen
Original:
Functions
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Grundlegende Bedienung
Original:
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
Original:
Exponential functions
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exp
exp2(C99)
expm1(C99)
log
log10
log1p(C99)
log2(C99)
Power-Funktionen
Original:
Power functions
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sqrt
cbrt(C99)
hypot(C99)
pow
Trigonometrische und hyperbolische Funktionen
Original:
Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C99)
acosh(C99)
atanh(C99)
Fehler-und Gamma-Funktionen
Original:
Error and gamma functions
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erf(C99)
erfc(C99)
lgamma(C99)
tgamma(C99)
Nächste ganze Zahl Fließkomma-Operationen
Original:
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
Original:
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>
int rintf( float arg );
int rint( double arg );
int rintl( long double arg );
long lrintf( float arg );
long lrint( double arg );
long lrintl( long double arg );
long long llrintf( float arg );
long long llrint( double arg );
long long llrintl( long double arg );
Rundet die Floating-Point-Argument arg auf einen ganzzahligen Wert in Floating-Point-Format, mit dem aktuellen Rundung Modus. Wenn das Ergebnis unterscheidet sich von arg (dh arg war kein ganzzahliger Wert schon), wird die Gleitkomma-Ausnahme FE_INEXACT angehoben .
Original:
Rounds the floating-point argument arg to an integer value in floating-point format, using the current rounding mode. If the result differs from arg (i.e., arg was not an integer value already), the floating-point exception FE_INEXACT is raised.
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Inhaltsverzeichnis

[Bearbeiten] Parameter

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

Das ganzzahlige Ergebnis der Rundung arg
Original:
The integer result of rounding arg
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[Bearbeiten] Notes

Der einzige Unterschied zwischen nearbyint und rint ist, dass rint kann die FE_INEXACT Gleitkomma-Ausnahme zu erhöhen, während nearbyint wirft es nie .
Original:
The only difference between nearbyint and rint is that rint may raise the FE_INEXACT floating-point exception, while nearbyint never raises it.
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