Varianti

    std::numeric_limits::is_iec559

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    <tbody> </tbody>
    static const bool is_iec559
    		 (fino al c++11)
    static constexpr bool is_iec559
    		 (dal C++11)
    Il valore di std::numeric_limits<T>::is_iec559 è true per tutti i tipi a virgola mobile T che soddisfano i requisiti della norma IEC 559 (IEEE 754) standard. Se std::numeric_limits<T>::is_iec559 è true, allora std::numeric_limits<T>::has_infinity, std::numeric_limits<T>::has_quiet_NaN, e sono anche std::numeric_limits<T>::has_signaling_NaN true.
    Original:
    The value of std::numeric_limits<T>::is_iec559 is true for all floating-point types T which fulfill the requirements of IEC 559 (IEEE 754) standard. If std::numeric_limits<T>::is_iec559 is true, then std::numeric_limits<T>::has_infinity, std::numeric_limits<T>::has_quiet_NaN, and std::numeric_limits<T>::has_signaling_NaN are also true.
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    Specializzazioni standard

    T
    valore di std::numeric_limits<T>::is_iec559
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    value of std::numeric_limits<T>::is_iec559
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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
    Original:
    usually true
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    long double
    di solito true
    Original:
    usually true
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    Vedi anche

    [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]
    [statico]
    identifica i tipi a virgola mobile che possono rappresentare il valore speciale "segnalazione non-a-number" (NaN)
    Original:
    identifies floating-point types that can represent the special value "signaling not-a-number" (NaN)
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    (pubblico membro statico costante) [modifica]