Smart pointer to hold a unique pointer to a heap allocated memory of type T, constructed using a specific allocator. More...

#include <unique_ptr.h>

Public Types
using	type = typename std::remove_extent< T >::type

using	pointer = type *

using	reference = type &

Public Member Functions
template<typename D = T, typename B = A, std::enable_if_t< std::is_same< B, std::nullptr_t >::value > * = nullptr>
	Unique_ptr ()
	Default class constructor, only to be used with no specific allocator. More...

template<typename D = T, typename B = A, std::enable_if_t<!std::is_same< B, std::nullptr_t >::value > * = nullptr>
	Unique_ptr (A &alloc)
	Class constructor, to be used with specific allocators, passing the allocator object to be used. More...

template<typename D = T, typename B = A, std::enable_if_t<!std::is_same< B, std::nullptr_t >::value &&std::is_array< D >::value > * = nullptr>
	Unique_ptr (A &alloc, size_t size)
	Class constructor, to be used with specific allocators and when `T` is an array type, passing the allocator object to be used and the size of the array. More...

template<typename D = T, typename B = A, std::enable_if_t< std::is_same< B, std::nullptr_t >::value &&std::is_array< D >::value > * = nullptr>
	Unique_ptr (size_t size)
	Class constructor, to be used with no specific allocators and when `T` is an array type, passing the allocator object to be used and the size of the array. More...

template<typename... Args, typename D = T, typename B = A, std::enable_if_t<!std::is_same< B, std::nullptr_t >::value &&!std::is_array< D >::value > * = nullptr>
	Unique_ptr (A &alloc, Args &&... args)
	Class constructor, to be used with specific allocators and when `T` is not an array type, passing the allocator object to be used and the parameters to be used with `T` object constructor. More...

template<typename... Args, typename D = T, typename B = A, std::enable_if_t< std::is_same< B, std::nullptr_t >::value &&!std::is_array< D >::value > * = nullptr>
	Unique_ptr (Args &&... args)
	Class constructor, to be used with no specific allocators and when `T` is not an array type, passing the parameters to be used with `T` object constructor. More...

	Unique_ptr (Unique_ptr< T, A > const &rhs)=delete

	Unique_ptr (Unique_ptr< T, A > &&rhs)
	Move constructor. More...

virtual	~Unique_ptr ()
	Destructor for the class. More...

Unique_ptr< T, A > &	operator= (Unique_ptr< T, A > const &rhs)=delete

Unique_ptr< T, A > &	operator= (Unique_ptr< T, A > &&rhs)
	Move operator. More...

template<typename D = T, std::enable_if_t<!std::is_array< D >::value > * = nullptr>
pointer	operator-> () const
	Arrow operator to access the underlying object of type `T`. More...

reference	operator* () const
	Star operator to access the underlying object of type `T`. More...

template<typename D = T, std::enable_if_t< std::is_array< D >::value > * = nullptr>
reference	operator[] (size_t index) const
	Subscript operator, to access an array element when `T` is of array type. More...

	operator bool () const
	Casting operator to bool. More...

template<typename B = A, std::enable_if_t< std::is_same< B, std::nullptr_t >::value > * = nullptr>
pointer	release ()
	Releases the ownership of the underlying allocated memory and returns a pointer to the beginning of that memory. More...

template<typename B = A, std::enable_if_t<!std::is_same< B, std::nullptr_t >::value > * = nullptr>
pointer	release ()
	Releases the ownership of the underlying allocated memory and returns a pointer to the beginning of that memory. More...

pointer	get () const
	Returns a pointer to the underlying allocated memory. More...

size_t	size () const
	The size of the memory allocated, in bytes. More...

template<typename D = T, typename B = A, std::enable_if_t< std::is_array< D >::value &&std::is_same< B, std::nullptr_t >::value > * = nullptr>
Unique_ptr< T, A > &	reserve (size_t new_size)
	Will resize the allocated memory to `new_size`. More...

template<typename D = T, typename B = A, std::enable_if_t< std::is_array< D >::value &&!std::is_same< B, std::nullptr_t >::value > * = nullptr>
Unique_ptr< T, A > &	reserve (size_t new_size)
	Will resize the allocated memory to `new_size`. More...

A &	allocator () const
	Returns the used allocator instance, if any. More...

template<typename D , std::enable_if_t<!std::is_array< D >::value > * >
memory::Unique_ptr< T, A >::pointer	operator-> () const

template<typename D , std::enable_if_t< std::is_array< D >::value > * >
memory::Unique_ptr< T, A >::reference	operator[] (size_t index) const

template<typename B , std::enable_if_t< std::is_same< B, std::nullptr_t >::value > * >
memory::Unique_ptr< T, A >::pointer	release ()

template<typename D , typename B , std::enable_if_t< std::is_array< D >::value &&std::is_same< B, std::nullptr_t >::value > * >
memory::Unique_ptr< T, A > &	reserve (size_t new_size)

template<typename D , std::enable_if_t< std::is_array< D >::value > * >
memory::Unique_ptr< T, A >::pointer	clone () const

Private Member Functions
void	reset ()
	Clears the underlying pointer and size. More...

template<typename D = T, typename B = A, std::enable_if_t< std::is_same< B, std::nullptr_t >::value &&std::is_array< D >::value > * = nullptr>
void	destroy ()
	Deallocates the underlying allocated memory. More...

template<typename D = T, typename B = A, std::enable_if_t< std::is_same< B, std::nullptr_t >::value &&!std::is_array< D >::value > * = nullptr>
void	destroy ()
	Deallocates the underlying allocated memory. More...

template<typename D = T, typename B = A, std::enable_if_t<!std::is_same< B, std::nullptr_t >::value &&std::is_array< D >::value > * = nullptr>
void	destroy ()
	Deallocates the underlying allocated memory. More...

template<typename D = T, typename B = A, std::enable_if_t<!std::is_same< B, std::nullptr_t >::value &&!std::is_array< D >::value > * = nullptr>
void	destroy ()
	Deallocates the underlying allocated memory. More...

template<typename D = T, std::enable_if_t< std::is_array< D >::value > * = nullptr>
pointer	clone () const
	Clones the underlying memory and returns a pointer to the clone memory. More...

template<typename D = T, std::enable_if_t<!std::is_array< D >::value > * = nullptr>
pointer	clone () const
	Clones the underlying memory and returns a pointer to the clone memory. More...

Private Attributes
pointer	m_underlying {nullptr}
	The pointer to the underlying allocated memory More...

memory::Ref_ptr< A >	m_allocator
	The allocator to be used to allocate memory. More...

size_t	m_size {0}
	The size of the allocated memory. More...

Detailed Description

template<typename T, typename A = std::nullptr_t>
class memory::Unique_ptr< T, A >

Smart pointer to hold a unique pointer to a heap allocated memory of type T, constructed using a specific allocator.

Template parameters are as follows:

T is the type of the pointer to allocate. It may be an array type.
A the allocator to use. If none is passed, std::nullptr_t is passed and regular new and delete are used to construct the memory.

Member Typedef Documentation

◆ pointer

template<typename T , typename A = std::nullptr_t>

using memory::Unique_ptr< T, A >::pointer = type *

◆ reference

template<typename T , typename A = std::nullptr_t>

using memory::Unique_ptr< T, A >::reference = type &

◆ type

template<typename T , typename A = std::nullptr_t>

using memory::Unique_ptr< T, A >::type = typename std::remove_extent<T>::type

Constructor & Destructor Documentation

◆ Unique_ptr() [1/8]

template<typename T , typename A >

template<typename D , typename B , std::enable_if_t< std::is_same< B, std::nullptr_t >::value > * >

memory::Unique_ptr< T, A >::Unique_ptr

Default class constructor, only to be used with no specific allocator.

◆ Unique_ptr() [2/8]

template<typename T , typename A >

template<typename D , typename B , std::enable_if_t<!std::is_same< B, std::nullptr_t >::value > * >

memory::Unique_ptr< T, A >::Unique_ptr ( A & alloc )

Class constructor, to be used with specific allocators, passing the allocator object to be used.

Parameters

alloc The allocator instance to be used.

◆ Unique_ptr() [3/8]

template<typename T , typename A >

template<typename D , typename B , std::enable_if_t<!std::is_same< B, std::nullptr_t >::value &&std::is_array< D >::value > * >

memory::Unique_ptr< T, A >::Unique_ptr	(	A &	alloc,
		size_t	size
	)

Class constructor, to be used with specific allocators and when T is an array type, passing the allocator object to be used and the size of the array.

Parameters

alloc	The allocator instance to be used.
size	The size of the array to allocate.

◆ Unique_ptr() [4/8]

template<typename T , typename A >

template<typename D , typename B , std::enable_if_t< std::is_same< B, std::nullptr_t >::value &&std::is_array< D >::value > * >

memory::Unique_ptr< T, A >::Unique_ptr ( size_t size )

Class constructor, to be used with no specific allocators and when T is an array type, passing the allocator object to be used and the size of the array.

Parameters

size	The size of the array to allocate.

◆ Unique_ptr() [5/8]

template<typename T , typename A >

template<typename... Args, typename D , typename B , std::enable_if_t<!std::is_same< B, std::nullptr_t >::value &&!std::is_array< D >::value > * >

memory::Unique_ptr< T, A >::Unique_ptr	(	A &	alloc,
		Args &&...	args
	)

Class constructor, to be used with specific allocators and when T is not an array type, passing the allocator object to be used and the parameters to be used with T object constructor.

Parameters

alloc	The allocator instance to be used.
args	The parameters to be used with `T` object constructor.

◆ Unique_ptr() [6/8]

template<typename T , typename A >

template<typename... Args, typename D , typename B , std::enable_if_t< std::is_same< B, std::nullptr_t >::value &&!std::is_array< D >::value > * >

memory::Unique_ptr< T, A >::Unique_ptr ( Args &&... args )

Class constructor, to be used with no specific allocators and when T is not an array type, passing the parameters to be used with T object constructor.

Parameters

args	The parameters to be used with `T` object constructor.

◆ Unique_ptr() [7/8]

template<typename T , typename A = std::nullptr_t>

memory::Unique_ptr< T, A >::Unique_ptr ( Unique_ptr< T, A > const & rhs )

delete

◆ Unique_ptr() [8/8]

template<typename T , typename A >

memory::Unique_ptr< T, A >::Unique_ptr ( memory::Unique_ptr< T, A > && rhs )

Move constructor.

Parameters

rhs	The object to move data from.

◆ ~Unique_ptr()

template<typename T , typename A >

memory::Unique_ptr< T, A >::~Unique_ptr

virtual

Destructor for the class.

Member Function Documentation

◆ allocator()

template<typename T , typename A >

A & memory::Unique_ptr< T, A >::allocator

Returns the used allocator instance, if any.

Returns: The reference to the allocator object.

◆ clone() [1/3]

template<typename T , typename A = std::nullptr_t>

template<typename D = T, std::enable_if_t< std::is_array< D >::value > * = nullptr>

pointer memory::Unique_ptr< T, A >::clone ( ) const

private

Clones the underlying memory and returns a pointer to the clone memory.

Returns: A pointer to the cloned underlying memory.

◆ clone() [2/3]

template<typename T , typename A = std::nullptr_t>

template<typename D = T, std::enable_if_t<!std::is_array< D >::value > * = nullptr>

pointer memory::Unique_ptr< T, A >::clone ( ) const

private

Clones the underlying memory and returns a pointer to the clone memory.

Returns: A pointer to the cloned underlying memory.

◆ clone() [3/3]

template<typename T , typename A >

template<typename D , std::enable_if_t<!std::is_array< D >::value > * >

memory::Unique_ptr< T, A >::pointer memory::Unique_ptr< T, A >::clone

◆ destroy() [1/4]

template<typename T , typename A >

template<typename D , typename B , std::enable_if_t<!std::is_same< B, std::nullptr_t >::value &&!std::is_array< D >::value > * >

void memory::Unique_ptr< T, A >::destroy

private

Deallocates the underlying allocated memory.

◆ destroy() [2/4]

template<typename T , typename A = std::nullptr_t>

template<typename D = T, typename B = A, std::enable_if_t< std::is_same< B, std::nullptr_t >::value &&!std::is_array< D >::value > * = nullptr>

void memory::Unique_ptr< T, A >::destroy ( )

private

Deallocates the underlying allocated memory.

◆ destroy() [3/4]

template<typename T , typename A = std::nullptr_t>

template<typename D = T, typename B = A, std::enable_if_t<!std::is_same< B, std::nullptr_t >::value &&std::is_array< D >::value > * = nullptr>

void memory::Unique_ptr< T, A >::destroy ( )

private

Deallocates the underlying allocated memory.

◆ destroy() [4/4]

template<typename T , typename A = std::nullptr_t>

template<typename D = T, typename B = A, std::enable_if_t<!std::is_same< B, std::nullptr_t >::value &&!std::is_array< D >::value > * = nullptr>

void memory::Unique_ptr< T, A >::destroy ( )

private

Deallocates the underlying allocated memory.

◆ get()

template<typename T , typename A >

memory::Unique_ptr< T, A >::pointer memory::Unique_ptr< T, A >::get

Returns a pointer to the underlying allocated memory.

Returns: A pointer to the underlying allocated memory

◆ operator bool()

template<typename T , typename A >

memory::Unique_ptr< T, A >::operator bool

Casting operator to bool.

Returns: true if the underlying pointer is instantiated, false otherwise.

◆ operator*()

template<typename T , typename A >

memory::Unique_ptr< T, A >::reference memory::Unique_ptr< T, A >::operator*

Star operator to access the underlying object of type T.

Returns: A reference to the underlying object of type T.

◆ operator->() [1/2]

template<typename T , typename A = std::nullptr_t>

template<typename D = T, std::enable_if_t<!std::is_array< D >::value > * = nullptr>

pointer memory::Unique_ptr< T, A >::operator-> ( ) const

Arrow operator to access the underlying object of type T.

Returns: A pointer to the underlying object of type T.

◆ operator->() [2/2]

template<typename T , typename A = std::nullptr_t>

template<typename D , std::enable_if_t<!std::is_array< D >::value > * >

memory::Unique_ptr< T, A >::pointer memory::Unique_ptr< T, A >::operator-> ( ) const

◆ operator=() [1/2]

template<typename T , typename A >

memory::Unique_ptr< T, A > & memory::Unique_ptr< T, A >::operator= ( memory::Unique_ptr< T, A > && rhs )

Move operator.

Parameters

rhs	The object to move data from.

◆ operator=() [2/2]

template<typename T , typename A = std::nullptr_t>

Unique_ptr< T, A > & memory::Unique_ptr< T, A >::operator= ( Unique_ptr< T, A > const & rhs )

delete

◆ operator[]() [1/2]

template<typename T , typename A = std::nullptr_t>

template<typename D = T, std::enable_if_t< std::is_array< D >::value > * = nullptr>

reference memory::Unique_ptr< T, A >::operator[] ( size_t index ) const

Subscript operator, to access an array element when T is of array type.

Parameters

index The index of the element to retrieve the value for.

Returns: A reference to the value stored at index.

◆ operator[]() [2/2]

template<typename T , typename A = std::nullptr_t>

template<typename D , std::enable_if_t< std::is_array< D >::value > * >

memory::Unique_ptr< T, A >::reference memory::Unique_ptr< T, A >::operator[] ( size_t index ) const

◆ release() [1/3]

template<typename T , typename A = std::nullptr_t>

template<typename B = A, std::enable_if_t< std::is_same< B, std::nullptr_t >::value > * = nullptr>

pointer memory::Unique_ptr< T, A >::release ( )

Releases the ownership of the underlying allocated memory and returns a pointer to the beginning of that memory.

This smart pointer will no longer manage the underlying memory.

Returns: the pointer to the allocated and no longer managed memory.

◆ release() [2/3]

template<typename T , typename A = std::nullptr_t>

template<typename B = A, std::enable_if_t<!std::is_same< B, std::nullptr_t >::value > * = nullptr>

pointer memory::Unique_ptr< T, A >::release ( )

Releases the ownership of the underlying allocated memory and returns a pointer to the beginning of that memory.

This smart pointer will no longer manage the underlying memory.

Returns: the pointer to the allocated and no longer managed memory.

◆ release() [3/3]

template<typename T , typename A >

template<typename B , std::enable_if_t<!std::is_same< B, std::nullptr_t >::value > * >

memory::Unique_ptr< T, A >::pointer memory::Unique_ptr< T, A >::release

◆ reserve() [1/3]

template<typename T , typename A = std::nullptr_t>

template<typename D = T, typename B = A, std::enable_if_t< std::is_array< D >::value &&std::is_same< B, std::nullptr_t >::value > * = nullptr>

Unique_ptr< T, A > & memory::Unique_ptr< T, A >::reserve ( size_t new_size )

Will resize the allocated memory to new_size.

If the configure allocator supports this operation, the allocator is used. If not, a new memory chunk is allocated and the memory is copied.

Parameters

new_size The new desired size for the memory.

Returns: The reference to this object, for chaining purposed.

◆ reserve() [2/3]

template<typename T , typename A = std::nullptr_t>

template<typename D = T, typename B = A, std::enable_if_t< std::is_array< D >::value &&!std::is_same< B, std::nullptr_t >::value > * = nullptr>

Unique_ptr< T, A > & memory::Unique_ptr< T, A >::reserve ( size_t new_size )

Will resize the allocated memory to new_size.

If the configure allocator supports this operation, the allocator is used. If not, a new memory chunk is allocated and the memory is copied.

Parameters

new_size The new desired size for the memory.

Returns: The reference to this object, for chaining purposed.

◆ reserve() [3/3]

template<typename T , typename A >

template<typename D , typename B , std::enable_if_t< std::is_array< D >::value &&!std::is_same< B, std::nullptr_t >::value > * >

memory::Unique_ptr< T, A > & memory::Unique_ptr< T, A >::reserve ( size_t new_size )

◆ reset()

template<typename T , typename A >

void memory::Unique_ptr< T, A >::reset ( void )

private

Clears the underlying pointer and size.

◆ size()

template<typename T , typename A >

size_t memory::Unique_ptr< T, A >::size

The size of the memory allocated, in bytes.

Returns: The size of the memory allocated, in bytes

Member Data Documentation

◆ m_allocator

template<typename T , typename A = std::nullptr_t>

memory::Ref_ptr<A> memory::Unique_ptr< T, A >::m_allocator

private

The allocator to be used to allocate memory.

◆ m_size

template<typename T , typename A = std::nullptr_t>

size_t memory::Unique_ptr< T, A >::m_size {0}

private

The size of the allocated memory.

◆ m_underlying

template<typename T , typename A = std::nullptr_t>

pointer memory::Unique_ptr< T, A >::m_underlying {nullptr}

private

The pointer to the underlying allocated memory

The documentation for this class was generated from the following file:

sql/memory/unique_ptr.h

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ pointer

◆ reference

◆ type

Constructor & Destructor Documentation

◆ Unique_ptr() [1/8]

◆ Unique_ptr() [2/8]

◆ Unique_ptr() [3/8]

◆ Unique_ptr() [4/8]

◆ Unique_ptr() [5/8]

◆ Unique_ptr() [6/8]

◆ Unique_ptr() [7/8]

◆ Unique_ptr() [8/8]

◆ ~Unique_ptr()

Member Function Documentation

◆ allocator()

◆ clone() [1/3]

◆ clone() [2/3]

◆ clone() [3/3]

◆ destroy() [1/4]

◆ destroy() [2/4]

◆ destroy() [3/4]

◆ destroy() [4/4]

◆ get()

◆ operator bool()

◆ operator*()

◆ operator->() [1/2]

◆ operator->() [2/2]

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ operator[]() [1/2]

◆ operator[]() [2/2]

◆ release() [1/3]

◆ release() [2/3]

◆ release() [3/3]

◆ reserve() [1/3]

◆ reserve() [2/3]

◆ reserve() [3/3]

◆ reset()

◆ size()

Member Data Documentation

◆ m_allocator

◆ m_size

◆ m_underlying