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Traits type used to obtain the allocator associated with an object.
template< typename T, typename Allocator = std::allocator<void>> struct associated_allocator
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Name |
Description |
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If T has a nested type allocator_type, T::allocator_type. Otherwise Allocator. |
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Name |
Description |
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get [static] |
If T has a nested type allocator_type, returns t.get_allocator().
Otherwise returns type(). |
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.
type
that identifies a type meeting the Allocator requirements.
get,
callable as get(t)
and with return type type
or a (possibly const) reference to type.
get,
callable as get(t,a)
and with return type type
or a (possibly const) reference to type.
Header: asio/associated_allocator.hpp
Convenience header: asio.hpp