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std::numeric_limits::is_exact

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std::numeric_limits
 
static const bool is_exact
(hasta C++11)
static constexpr bool is_exact
(desde C++11)
El valor de std::numeric_limits<T>::is_exact es true para todos los tipos aritméticos T que utilizan la representación exacta .
Original:
The value of std::numeric_limits<T>::is_exact is true for all arithmetic types T that use exact representation.
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[editar] Especializaciones estándar

T
valor de std::numeric_limits<T>::is_exact
Original:
value of std::numeric_limits<T>::is_exact
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/* non-specialized */ false
bool true
char true
signed char true
unsigned char true
wchar_t true
char16_t true
char32_t true
short true
unsigned short true
int true
unsigned int true
long true
unsigned long true
long long true
unsigned long long true
float false
double false
long double false

[editar] Notas

Aunque todos los tipos fundamentales T para que std::numeric_limits<T>::is_exact==true son tipos de enteros, una biblioteca puede definir tipos exactos que no son números enteros, por ejemplo, un tipo de aritmética racional representa fracciones .
Original:
While all fundamental types T for which std::numeric_limits<T>::is_exact==true are integer types, a library may define exact types that aren't integers, e.g. a rational arithmetics type representing fractions.
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[editar] Ver también

[estático]
identifica los tipos enteros
Original:
identifies integer types
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(miembro público estático constante) [editar]
[estático]
identifica los tipos firmados
Original:
identifies signed types
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(miembro público estático constante) [editar]
[estático]
identifies types that represent a finite set of values
(miembro público estático constante) [editar]