Varianti

    std::numeric_limits::has_signaling_NaN

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    <tbody> </tbody>
    static const bool has_signaling_NaN
    		 (fino al c++11)
    static constexpr bool has_signaling_NaN
    		 (dal C++11)
    Il valore di std::numeric_limits<T>::has_signaling_NaN è true per tutti i tipi T in grado di rappresentare il valore speciale "segnalazione Not-A-Number". Questa costante è significativo per tutti i tipi a virgola mobile ed è garantito per essere true se std::numeric_limits<T>::is_iec559 == true.
    Original:
    The value of std::numeric_limits<T>::has_signaling_NaN is true for all types T capable of representing the special value "Signaling Not-A-Number". This constant is meaningful for all floating-point types and is guaranteed to be true if std::numeric_limits<T>::is_iec559 == true.
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    Specializzazioni standard

    T
    valore di std::numeric_limits<T>::has_signaling_NaN
    Original:
    value of std::numeric_limits<T>::has_signaling_NaN
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    /* non-specialized */ false
    bool false
    char false
    signed char false
    unsigned char false
    wchar_t false
    char16_t false
    char32_t false
    short false
    unsigned short false
    int false
    unsigned int false
    long false
    unsigned long false
    long long false
    unsigned long long false
    float
    di solito true
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    usually true
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    double
    di solito true
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    usually true
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    long double
    di solito true
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    usually true
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    Vedi anche

    [statico]
    restituisce un valore NaN tranquilla di un dato tipo a virgola mobile
    Original:
    returns a quiet NaN value of the given floating-point type
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    (metodo pubblico statico) [modifica]
    [statico]
    identifica i tipi a virgola mobile che possono rappresentare la speciale "positive infinity" valore
    Original:
    identifies floating-point types that can represent the special value "positive infinity"
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    (pubblico membro statico costante) [modifica]
    [statico]
    identifica i tipi a virgola mobile che possono rappresentare il valore speciale "tranquilla, non-a-number" (NaN)
    Original:
    identifies floating-point types that can represent the special value "quiet not-a-number" (NaN)
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    (pubblico membro statico costante) [modifica]