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std::numeric_limits::has_signaling_NaN

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std::numeric_limits
 
static const bool has_signaling_NaN
(avant C++11)
static constexpr bool has_signaling_NaN
(depuis C++11)
La valeur de std::numeric_limits<T>::has_signaling_NaN est true pour tous les types T capables de représenter la valeur spéciale "Signalisation Not-A-Number". Cette constante est significative pour tous les types virgule flottante et est garanti d'être true si 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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[modifier] Spécialisations standard

T
valeur de 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
généralement true
Original:
usually true
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double
généralement true
Original:
usually true
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long double
généralement true
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usually true
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[modifier] Voir aussi

[
statique
Original:
static
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]
renvoie une valeur NaN calme de la donnée à virgule flottante de type
Original:
returns a quiet NaN value of the given floating-point type
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(fonction membre publique statique) [edit]
[
statique
Original:
static
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]
identifie types à virgule flottante qui peuvent représenter la valeur spéciale "infini positif"
Original:
identifies floating-point types that can represent the special value "positive infinity"
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(constante membre statique publique) [edit]
[
statique
Original:
static
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]
identifie types à virgule flottante qui peuvent représenter la valeur spéciale "calme pas-a-number» (NaN)
Original:
identifies floating-point types that can represent the special value "quiet not-a-number" (NaN)
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(constante membre statique publique) [edit]