reference_storage< any_allocator > Class Reference

Detailed Description

Specialization of the class template reference_storage that is type-erased.

It is triggered by the tag type any_allocator. The specialization can store a reference to any allocator type.

Typedefs
using	allocator_type = implementation_defined

Member Functions
template<class RawAllocator >
	reference_storage (RawAllocator &alloc) noexcept
template<class RawAllocator >
	reference_storage (const RawAllocator &alloc,) noexcept
	It will not store anything, only creates the allocator as needed.
	reference_storage (const implementation_defined &alloc) noexcept
	reference_storage (implementation_defined &alloc) noexcept
allocator_type &	get_allocator () const noexcept
	reference_storage (const reference_storage &other) noexcept
reference_storage &	operator= (const reference_storage &other) noexcept

Constructors

reference_storage() [1/5]

reference_storage ( RawAllocator &  alloc )

noexcept

Effects:

Creates it from a reference to any stateful RawAllocator. It will store a pointer to this allocator object.

Note

The user has to take care that the lifetime of the reference does not exceed the allocator lifetime.

reference_storage() [2/5]

reference_storage ( const RawAllocator &  alloc )

noexcept

It will not store anything, only creates the allocator as needed.

Requires:

The RawAllocator is stateless.

reference_storage() [3/5]

reference_storage ( const implementation_defined &  alloc )

noexcept

Effects:

Creates it from the internal base class for the type-erasure. Has the same effect as if the actual stored allocator were passed to the other constructor overloads.

Note

This constructor is used internally to avoid double-nesting.

reference_storage() [4/5]

reference_storage ( implementation_defined &  alloc )

noexcept

Effects:

Creates it from the internal base class for the type-erasure. Has the same effect as if the actual stored allocator were passed to the other constructor overloads.

Note

This constructor is used internally to avoid double-nesting.

reference_storage() [5/5]

reference_storage ( const reference_storage< any_allocator > &  other )

noexcept

Effects:

Copies the reference_storage object. It only copies the pointer to the allocator.

Member Functions

operator=()

reference_storage & operator= ( const reference_storage< any_allocator > &  other )

noexcept

Effects:

Copies the reference_storage object. It only copies the pointer to the allocator.

get_allocator()

allocator_type & get_allocator ( ) const

noexcept

Returns:

A reference to the allocator. The actual type is implementation-defined since it is the base class used in the type-erasure, but it provides the full RawAllocator member functions.

Note

There is no way to access any custom member functions of the allocator type.