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std::numeric_limits::has_infinity

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std::numeric_limits
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numeric_limits::is_specialized
numeric_limits::is_signed
numeric_limits::is_integer
numeric_limits::is_exact
numeric_limits::has_infinity
numeric_limits::has_quiet_NaN
numeric_limits::has_signaling_NaN
numeric_limits::has_denorm
numeric_limits::has_denorm_loss
numeric_limits::round_style
numeric_limits::is_iec559
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numeric_limits::is_modulo
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numeric_limits::infinity
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static const bool has_infinity
 (até C++11)
static constexpr bool has_infinity
 (desde C++11)
O valor da std::numeric_limits<T>::has_infinity é true para todos os tipos T capazes de representar o infinito positivo como um valor distinto especial. Esta constante é significativo para todos os tipos de ponto flutuante e é garantido para ser true se std::numeric_limits<T>::is_iec559 == true.
Original:
The value of std::numeric_limits<T>::has_infinity is true for all types T capable of representing the positive infinity as a distinct special value. 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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[editar] Especializações padrão

T
valor de std::numeric_limits<T>::has_infinity
Original:
value of std::numeric_limits<T>::has_infinity
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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
geralmente true
Original:
usually true
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double
geralmente true
Original:
usually true
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long double
geralmente true
Original:
usually true
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[editar] Veja também

[estática]
retorna o valor infinito positivo do dado tipo de ponto flutuante
Original:
returns the positive infinity value of the given floating-point type
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(função public static membro) [edit]
[estática]
identifica tipos de ponto flutuante que podem representar o valor especial "tranquila, não-número um" (NaN)
Original:
identifies floating-point types that can represent the special value "quiet not-a-number" (NaN)
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(membro estático público constante) [edit]
[estática]
identifica tipos de ponto flutuante que podem representar o valor especial "de sinalização não-número um" (NaN)
Original:
identifies floating-point types that can represent the special value "signaling not-a-number" (NaN)
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(membro estático público constante) [edit]
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