allocator_polymorphic_deallocator< BaseType, RawAllocator > Class Template Reference

Detailed Description

template<typename BaseType, class RawAllocator>
class foonathan::memory::allocator_polymorphic_deallocator< BaseType, RawAllocator >

A deleter class that deallocates the memory of a derived type through a specified RawAllocator.

It can only be created from a allocator_deallocator and thus must only be used for smart pointers initialized by derived-to-base conversion of the pointer.

Typedefs
using	allocator_type
using	value_type

Member Functions
	allocator_polymorphic_deallocator () noexcept=default
template<typename T>
	allocator_polymorphic_deallocator (allocator_deallocator< T, RawAllocator > dealloc)
void	operator() (value_type *pointer) noexcept
auto	get_allocator () const noexcept -> decltype(std::declval< allocator_reference< allocator_type > >().get_allocator())

Constructors

allocator_polymorphic_deallocator() [1/2]

template<typename BaseType, class RawAllocator>

allocator_polymorphic_deallocator ( )

defaultnoexcept

Effects:

Creates it without any associated allocator. The deallocator must not be used if that is the case.

Notes:

This functions is useful if you have want to create an empty smart pointer without giving it an allocator.

allocator_polymorphic_deallocator() [2/2]

template<typename BaseType, class RawAllocator>

template<typename T>

allocator_polymorphic_deallocator

(

allocator_deallocator< T, RawAllocator >

dealloc

)

Effects:

Creates it from a deallocator for a derived type. It will deallocate the memory as if done by the derived type.

Member Functions

operator()()

template<typename BaseType, class RawAllocator>

void operator() ( value_type * pointer )

noexcept

Effects:

Deallocates the memory given to it. Calls deallocate_node(pointer, size, alignment) on the referenced allocator object, where size and alignment are the values of the type it was created with.

get_allocator()

template<typename BaseType, class RawAllocator>

auto get_allocator ( ) const -> decltype(std::declval<allocator_reference<allocator_type>>().get_allocator())

noexcept

Returns:

The reference to the allocator. It has the same type as the call to get_allocator().