Espaços nominais
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std::uses_allocator<std::tuple>

Da cppreference.com
< cpp‎ | utility‎ | tuple

 
 
Biblioteca de utilitários
Digite apoio (basic types, RTTI, type traits)
Gerenciamento de memória dinâmica
De tratamento de erros
Utilidades do programa
Variadic funções
Data e hora
Objetos de função
initializer_list(C++11)
bitset
hash(C++11)
Os operadores relacionais
Original:
Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Pares e tuplas
Original:
Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Troque, avançar e avançar
Original:
Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
std::tuple
Funções de membro
Original:
Member functions
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tuple::tuple
tuple::operator=
tuple::swap
Não-membros funções
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Non-member functions
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make_tuple
tie
forward_as_tuple
None
operator=
operator!=
operator<
operator<=
operator>
operator>=
std::swap
get
Classes auxiliares
Original:
Helper classes
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tuple_size
tuple_element
uses_allocator
ignore
 
Defined in header <tuple>
template< class... Types, class Alloc >
struct uses_allocator< std::tuple<Types...>, Alloc > : std::true_type { };
(a partir do C++ 11)
Esta especialização de std::uses_allocator informa que outros componentes da biblioteca tuplas apoio' usos alocador-construção, mesmo que eles não têm um allocator_type aninhada.
Original:
This specialization of std::uses_allocator informs other library components that tuples support uses-allocator construction, even though they do not have a nested allocator_type.
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Índice

Inherited from std::integral_constant

Member constants

value
[estática]
true
(membro estático público constante)

Member functions

operator bool
converte o objeto em bool, retorna value
Original:
converts the object to bool, returns value
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(função pública membro)

Member types

Tipo
Original:
Type
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Definition
value_type bool
type std::integral_constant<bool, value>

[editar] Exemplo

// myalloc is a stateful Allocator with a single-argument constructor
// that takes an int. It has no default constructor.
 
    typedef std::vector<int, myalloc<int>> innervector_t;
    typedef std::tuple<int, innervector_t> elem_t;
    typedef std::scoped_allocator_adaptor< myalloc<elem_t>, myalloc<int>> Alloc;
    Alloc a(1,2);
    std::vector<elem_t, Alloc> v(a);
    v.resize(1);                  // uses allocator #1 for elements of v
    std::get<1>(v[0]).resize(10); // uses allocator #2 for innervector_t


[editar] Veja também

verifica se o tipo especificado suporta usos alocador-construção
Original:
checks if the specified type supports uses-allocator construction
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(modelo de classe) [edit]