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    std::isinf

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    <metanoindex/>

     
    C++
     
    Numerik-Bibliothek
    Gemeinsame mathematischen Funktionen
    Floating-Point-Umgebung
    Komplexe Zahlen
    Numerische Arrays
    Pseudo-Zufallszahlen
    Compile-time rationale Arithmetik (C++11)
    Generische numerische Operationen
    Original:
    Generic numeric operations
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    iota(C++11)
    accumulate
    inner_product
    adjacent_difference
    partial_sum
     
    Gemeinsame mathematischen Funktionen
    Funktionen
    Original:
    Functions
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    Grundlegende Bedienung
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    Basic operations
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    remainder(C++11)
    remquo(C++11)
    fma(C++11)
    fmax(C++11)
    fmin(C++11)
    fdim(C++11)
    nan
    nanf
    nanl    		(C++11)
    (C++11)
    (C++11)
    Exponentialfunktionen
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    Exponential functions
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    exp
    exp2(C++11)
    expm1(C++11)
    log
    log10
    log1p(C++11)
    log2(C++11)
    Power-Funktionen
    Original:
    Power functions
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    sqrt
    cbrt(C++11)
    hypot(C++11)
    pow
    Trigonometrische und hyperbolische Funktionen
    Original:
    Trigonometric and hyperbolic functions
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    sinh
    cosh
    tanh
    asinh(C++11)
    acosh(C++11)
    atanh(C++11)
    Fehler-und Gamma-Funktionen
    Original:
    Error and gamma functions
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    erf(C++11)
    erfc(C++11)
    lgamma(C++11)
    tgamma(C++11)
    Nächste ganze Zahl Fließkomma-Operationen
    Original:
    Nearest integer floating point operations
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    ceil
    floor
    round
    lround
    llround    		(C++11)
    (C++11)
    (C++11)
    trunc(C++11)
    nearbyint(C++11)
    rint
    lrint
    llrint    		(C++11)
    (C++11)
    (C++11)
    Floating-Point-Manipulation Funktionen
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    Floating point manipulation functions
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    ldexp
    scalbn
    scalbln    		(C++11)
    (C++11)
    ilogb(C++11)
    logb(C++11)
    frexp
    modf
    nextafter
    nexttoward    		(C++11)
    (C++11)
    copysign(C++11)
    Klassifizierung / Vergleich
    Original:
    Classification/Comparison
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    fpclassify(C++11)
    isfinite(C++11)
    isinf(C++11)
    isnan(C++11)
    isnormal(C++11)
    signbit(C++11)
    isgreater(C++11)
    isgreaterequal(C++11)
    isless(C++11)
    islessequal(C++11)
    islessgreater(C++11)
    isunordered(C++11)
    Makro Konstanten
    Original:
    Macro constants
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    FP_NORMAL
    FP_SUBNORMAL
    FP_ZERO
    FP_INFINITE
    FP_NAN    		(C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
     
    <tbody> </tbody>
    definiert in Header <cmath>
    bool isinf( float arg );
    		 (seit C++11)
    bool isinf( double arg );
    		 (seit C++11)
    bool isinf( long double arg );
    		 (seit C++11)
    Bestimmt, ob die angegebene Gleitkommazahl arg positiv oder negativ unendlich .
    Original:
    Determines if the given floating point number arg is positive or negative infinity.
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    Parameter

    arg -
    Floating-Point-Wert
    Original:
    floating point value
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    Rückgabewert

    true wenn arg ist unendlich, false anders
    Original:
    true if arg is infinite, false otherwise
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    Siehe auch

    (C++11)
    kategorisiert den angegebenen Gleitkommawert
    Original:
    categorizes the given floating point value
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    (Funktion) [edit]
    (C++11)
    prüft, ob die angegebene Zahl hat endlichen Wert
    Original:
    checks if the given number has finite value
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    (Funktion) [edit]
    (C++11)
    prüft, ob die angegebene Zahl ist NaN
    Original:
    checks if the given number is NaN
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    (Funktion) [edit]
    (C++11)
    prüft, ob die gegebene Anzahl normal ist
    Original:
    checks if the given number is normal
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    (Funktion) [edit]