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std::numeric_limits::has_signaling_NaN

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std::numeric_limits
 
static const bool has_signaling_NaN
(bis C + +11)
static constexpr bool has_signaling_NaN
(seit C++11)
Der Wert der std::numeric_limits<T>::has_signaling_NaN ist true für alle Arten T Lage, die die besonderen Wert "Signaling Nicht-A-Number". Diese Konstante ist sinnvoll für alle Floating-Point-Typen und ist garantiert true wenn 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 Nicht-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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[Bearbeiten] Standard Spezialisierungen

T
Wert 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
Regel true
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usually true
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double
Regel true
Original:
usually true
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long double
Regel true
Original:
usually true
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[Bearbeiten] Siehe auch

[statisch]
gibt einen ruhigen NaN Wert der gegebenen Fließkomma-Typ
Original:
returns a quiet NaN value of the given floating-point type
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(public static Elementfunktion) [edit]
[statisch]
identifiziert Floating-Point-Typen, die den besonderen Wert "positive Unendlichkeit" darstellen kann
Original:
identifies floating-point types that can represent the special value "positive infinity"
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(public static Mitglied konstanten) [edit]
[statisch]
identifiziert Floating-Point-Typen, die den besonderen Wert "quiet not-a-number" (NaN) darstellen kann
Original:
identifies floating-point types that can represent the special value "quiet not-a-number" (NaN)
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(public static Mitglied konstanten) [edit]