nearbyint

 

C

Lingua

Tipo di supporto

Gestione della memoria dinamica

La gestione degli errori

Programma di utilità

Data e ora utilità

Stringhe libreria

Algoritmi

Numeri

Ingresso / uscita supporto

Localizzazione supporto

Thread di supporto(C11)

Operazioni atomiche(C11)

 

Numeri

Comuni funzioni matematiche

Virgola mobile ambiente

Complex number arithmetics

Generazione di numeri casuali

Tipo-generic matematica

 

Comuni funzioni matematiche

Funzioni Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Operazioni di base Original: Basic operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
abs labs llabs imaxabs (C99) fabs div ldiv lldiv imaxdiv (C99) fmod	remainder (C99) remquo (C99) fma (C99) fmax (C99) fmin (C99) fdim (C99) nan nanf nanl (C99) (C99) (C99)
Funzioni esponenziali Original: Exponential functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
exp exp2 (C99) expm1 (C99)	log log10 log1p (C99) log2 (C99)
Funzioni di risparmio energia Original: Power functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sqrt cbrt (C99)	hypot (C99) pow
Funzioni trigonometriche e iperboliche Original: Trigonometric and hyperbolic functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sin cos tan asin acos atan atan2	sinh cosh tanh asinh (C99) acosh (C99) atanh (C99)
Errore e gamma funzioni Original: Error and gamma functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
erf (C99) erfc (C99)	lgamma (C99) tgamma (C99)
Più vicini operazioni di interi in virgola mobile Original: Nearest integer floating point operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ceil floor round lround llround (C99) (C99) (C99)	trunc (C99) nearbyint (C99) rint lrint llrint (C99) (C99) (C99)
Floating funzioni di manipolazione di punti Original: Floating point manipulation functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ldexp scalbn scalbln (C99) (C99) ilogb (C99) logb (C99)	frexp modf nextafter nexttoward (C99) (C99) copysign (C99)
Classificazione Original: Classification The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fpclassify (C99)
isfinite (C99)
isinf (C99)
isnan (C99)
isnormal (C99)
signbit (C99)
Macro costanti Original: Macro constants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
HUGE_VALF HUGE_VAL HUGE_VALL (C99) (C99)	FP_NORMAL FP_SUBNORMAL FP_ZERO FP_INFINITE FP_NAN (C99) (C99) (C99) (C99) (C99)

 

Elemento definito nell'header <math.h>
float       nearbyintf(float arg );
double      nearbyint(double arg );
longdouble nearbyintl(longdouble arg );

Arrotonda il virgola mobile arg argomento in un valore intero in formato di virgola mobile, utilizzando la modalità corrente di arrotondamento.

Original:

Rounds the floating-point argument arg to an integer value in floating-point format, using the current rounding mode.

The text has been machine-translated via Google Translate.
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Parametri

arg

-

valore in virgola mobile Original: floating point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valore di ritorno

Il risultato intero di arg arrotondamento

Original:

The integer result of rounding arg

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Note

L'unica differenza tra nearbyint e rint è che rint può sollevare in virgola mobile eccezione FE_INEXACT, pur non essendo mai nearbyint solleva.

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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Vedi anche

rint lrint llrint (C99) (C99) (C99)	numero intero più vicino utilizzando la modalità corrente di arrotondamento ad eccezione se il risultato è diverso Original: nearest integer using current rounding mode with exception if the result differs The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
round lround llround (C99) (C99) (C99)	numero intero più vicino, l'arrotondamento a da zero in caso a metà strada Original: nearest integer, rounding away from zero in halfway cases The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
fegetround fesetround (C99) (C99)	ottiene o imposta la direzione di arrotondamento Original: gets or sets rounding direction The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
C++ documentation for nearbyint