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std::numeric_limits::is_signed

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Utilidades de la biblioteca
Escriba apoyo (basic types, RTTI, type traits)
Gestión de memoria dinámica
Gestión de errores
Programa de servicios públicos
Funciones variadic
Fecha y hora
Objetos Function
initializer_list(C++11)
bitset
hash(C++11)
Operadores relacionales
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Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Pares y tuplas
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Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Cambiar, hacia adelante y mover
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Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
Escriba apoyo
Tipos básicos
Original:
Basic types
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Tipos fundamentales
Tipos fijos ancho enteros (C++11)
Límites numéricos
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Numeric limits
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numeric_limits
C numérico limita interfaz
Información de tipo en tiempo de ejecución
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Runtime type information
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Caracteres de tipo
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Type traits
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Categorías primarias de tipo
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Primary type categories
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is_void(C++11)
is_array(C++11)
is_pointer(C++11)
is_enum(C++11)
is_union(C++11)
is_class(C++11)
is_function(C++11)
is_object(C++11)
is_scalar(C++11)
is_compound(C++11)
is_integral(C++11)
is_floating_point(C++11)
is_fundamental(C++11)
is_arithmetic(C++11)
is_reference(C++11)
is_lvalue_reference(C++11)
is_rvalue_reference(C++11)
is_member_pointer(C++11)
is_member_object_pointer(C++11)
is_member_function_pointer(C++11)
Propiedades de tipo
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Type properties
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is_const(C++11)
is_volatile(C++11)
is_pod(C++11)
is_empty(C++11)
is_polymorphic(C++11)
is_abstract(C++11)
Operaciones compatibles
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Supported operations
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is_constructible
is_trivially_constructible
is_nothrow_constructible
(C++11)
(C++11)
(C++11)
is_default_constructible
is_trivially_default_constructible
is_nothrow_default_constructible
(C++11)
(C++11)
(C++11)
is_copy_constructible
is_trivially_copy_constructible
is_nothrow_copy_constructible
(C++11)
(C++11)
(C++11)
is_move_constructible
is_trivially_move_constructible
is_nothrow_move_constructible
(C++11)
(C++11)
(C++11)
is_assignable
is_trivially_assignable
is_nothrow_assignable
(C++11)
(C++11)
(C++11)
is_copy_assignable
is_trivially_copy_assignable
is_nothrow_copy_assignable
(C++11)
(C++11)
(C++11)
is_move_assignable
is_trivially_move_assignable
is_nothrow_move_assignable
(C++11)
(C++11)
(C++11)
is_destructible
is_trivially_destructible
is_nothrow_destructible
(C++11)
(C++11)
(C++11)
has_virtual_destructor(C++11)
Relaciones y consultas de propiedad
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Relationships and property queries
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is_same(C++11)
is_base_of(C++11)
is_convertible(C++11)
alignment_of(C++11)
rank(C++11)
extent(C++11)
Modificaciones de tipo
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Type modifications
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remove_cv
remove_const
remove_volatile
(C++11)
(C++11)
(C++11)
add_cv
add_const
add_volatile
(C++11)
(C++11)
(C++11)
make_signed(C++11)
make_unsigned(C++11)
Transformaciones de tipo
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Type transformations
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aligned_storage(C++11)
aligned_union(C++11)
decay(C++11)
enable_if(C++11)
conditional(C++11)
common_type(C++11)
underlying_type(C++11)
result_of(C++11)
Escriba constantes rasgos
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Type trait constants
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integral_constant(C++11)
 
std::numeric_limits
 
static const bool is_signed
(hasta C++11)
static constexpr bool is_signed
(desde C++11)
El valor de std::numeric_limits<T>::is_signed es true para todos los tipos aritméticos firmados T y para false los tipos sin signo. Esta constante es significativa para todas las especialidades .
Original:
The value of std::numeric_limits<T>::is_signed is true for all signed arithmetic types T and false for the unsigned types. This constant is meaningful for all specializations.
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[editar] Especializaciones estándar

T
valor de std::numeric_limits<T>::is_signed
Original:
value of std::numeric_limits<T>::is_signed
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/* non-specialized */ false
bool false
char
definido por la implantación
Original:
implementation-defined
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signed char true
unsigned char false
wchar_t
definido por la implantación
Original:
implementation-defined
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char16_t false
char32_t false
short true
unsigned short false
int true
unsigned int false
long true
unsigned long false
long long true
unsigned long long false
float true
double true
long double true

[editar] Ver también

(C++11)
Comprueba si un tipo se firmaron tipo entero
Original:
checks if a type is signed integer type
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(clase de plantilla)
[estático]
identifica los tipos enteros
Original:
identifies integer types
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(público miembro constante estática) [edit]
[estático]
identifica los tipos exactos
Original:
identifies exact types
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(público miembro constante estática) [edit]
[estático]
identifies types that represent a finite set of values
(público miembro constante estática) [edit]