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std::numeric_limits::is_exact

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initializer_list(C++11)
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rel_ops::operator!=
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Tipos básicos
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Basic types
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Tipos fundamentais
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numeric_limits
C numérico limita interface
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is_constructible
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is_assignable
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is_move_assignable
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is_destructible
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has_virtual_destructor(C++11)
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is_same(C++11)
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make_signed(C++11)
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aligned_storage(C++11)
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decay(C++11)
enable_if(C++11)
conditional(C++11)
common_type(C++11)
underlying_type(C++11)
result_of(C++11)
Digite constantes traço
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Type trait constants
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integral_constant(C++11)
 
std::numeric_limits
 
static const bool is_exact
(até C + 11)
static constexpr bool is_exact
(a partir do C++ 11)
O valor de std::numeric_limits<T>::is_exact é true para todos os tipos aritméticos T que utilizam representação 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] Especializações padrão

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

Enquanto todos os tipos fundamentais para os quais T std::numeric_limits<T>::is_exact==true são tipos inteiros, uma biblioteca pode definir tipos exactos que não são números inteiros, por exemplo, um tipo de aritmética racional representando frações.
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] Veja também

[estática]
identifica os tipos inteiros
Original:
identifies integer types
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(membro estático público constante) [edit]
[estática]
identifica os tipos assinados
Original:
identifies signed types
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(membro estático público constante) [edit]
[estática]
identifies types that represent a finite set of values
(membro estático público constante) [edit]