std::uses_allocator<std::tuple>
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| Defined in header <tuple>
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| template< class... Types, class Alloc > struct uses_allocator< std::tuple<Types...>, Alloc > : std::true_type { }; |
(ya que C + +11) | |
Esta especialización de std::uses_allocator informa a los otros componentes de la biblioteca que el apoyo tuplas' asignador de usos, la construcción, a pesar de que no tiene un
allocator_type anidada .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.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Contenido |
Inherited from std::integral_constant
Member constants
| value [estático] |
true (público miembro constante estática) |
Member functions
| operator bool |
convierte el objeto a bool, devuelve value Original: converts the object to bool, returns value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (miembro público función) |
Member types
| Tipo
Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Definition |
value_type
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bool
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type
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std::integral_constant<bool, value> |
[editar] Ejemplo
// 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] Ver también
| (C++11) |
comprueba si el tipo especificado admite usos-asignador de construcción Original: checks if the specified type supports uses-allocator construction The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (clase de plantilla) |