Varianti

    signbit

    Da cppreference.com.
    < c | numeric | math

    Questa pagina è stata tradotta in modo automatico dalla versione in ineglese della wiki usando Google Translate.

    La traduzione potrebbe contenere errori e termini strani. Muovi il puntatore sopra al testo per vedere la versione originale. Puoi aiutarci a correggere gli gli errori. Per ulteriori istruzioni clicca qui.

    Click here for the English version of this page

    <metanoindex/>

     
    C
     
    Numeri
     
    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.
    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.
    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)
    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.
     
    <tbody> </tbody>
    Elemento definito nell'header <math.h>
    #define signbit(arg) /* implementation defined */
    Determina se il dato floating point arg numero è negativo. La macro restituisce un valore integrale.
    Original:
    Determines if the given floating point number arg is negative. The macro returns an integral value.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    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

    Diverso da zero se arg valore integrale è negativo, altrimenti 0
    Original:
    Nonzero integral value if arg is negative, 0 otherwise
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Vedi anche
    valore assoluto di un valore in virgola mobile (|x|)
    Original:
    absolute value of a floating point value (|x|)
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    (funzione) [modifica]
    (C99)
    copia il segno di un valore in virgola mobile
    Original:
    copies the sign of a 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.

    (funzione) [modifica]
    C++ documentation for signbit