Boost C++ Libraries

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This is an older version of Boost and was released in 2023. The current version is 1.89.0.

associated_allocator< reference_wrapper< T >, Allocator >::type

associated_allocator< reference_wrapper< T >, Allocator >::type

Forwards type to the associator specialisation for the unwrapped type T.

typedef associated_allocator< T, Allocator >::type type;

Types

Name	Description
type	If T has a nested type allocator_type, T::allocator_type. Otherwise Allocator.

Member Functions

Name	Description
decltype [static]	If T has a nested type allocator_type, returns t.get_allocator(). Otherwise returns type(). — If T has a nested type allocator_type, returns t.get_allocator(). Otherwise returns a.

Data Members

Name	Description
noexcept

A program may specialise this traits type if the T template parameter in the specialisation is a user-defined type. The template parameter Allocator shall be a type meeting the Allocator requirements.

Specialisations shall meet the following requirements, where t is a const reference to an object of type T, and a is an object of type Allocator.

Provide a nested typedef type that identifies a type meeting the Allocator requirements.
Provide a noexcept static member function named get, callable as get(t) and with return type type or a (possibly const) reference to type.
Provide a noexcept static member function named get, callable as get(t,a) and with return type type or a (possibly const) reference to type.

Requirements

Header: boost/asio/associated_allocator.hpp

Convenience header: boost/asio.hpp