NullAllocator< T > Class Template Reference

NULL allocator. More...

#include <secblock.h>

Inheritance diagram for NullAllocator< T >:

Public Types
typedef AllocatorBase< T >::value_type	value_type
typedef AllocatorBase< T >::size_type	size_type
typedef AllocatorBase< T >::difference_type	difference_type
typedef AllocatorBase< T >::pointer	pointer
typedef AllocatorBase< T >::const_pointer	const_pointer
typedef AllocatorBase< T >::reference	reference
typedef AllocatorBase< T >::const_reference	const_reference
Public Types inherited from AllocatorBase< T >
typedef T	value_type
typedef size_t	size_type
typedef std::ptrdiff_t	difference_type
typedef T *	pointer
typedef const T *	const_pointer
typedef T &	reference
typedef const T &	const_reference

Public Member Functions
pointer	allocate (size_type n, const void *unused=NULL)
void	deallocate (void *p, size_type n)
size_type	max_size () const
Public Member Functions inherited from AllocatorBase< T >
pointer	address (reference r) const
const_pointer	address (const_reference r) const
void	construct (pointer p, const T &val)
void	destroy (pointer p)
size_type	max_size () const
	Returns the maximum number of elements the allocator can provide.
template<typename V , typename... Args>
void	construct (V *ptr, Args &&... args)
	Constructs a new V using variadic arguments.
template<typename V >
void	destroy (V *ptr)
	Destroys an V constructed with variadic arguments.

Additional Inherited Members
Static Public Attributes inherited from AllocatorBase< T >
static const size_type	ELEMS_MAX = ...
	Returns the maximum number of elements the allocator can provide.

Detailed Description

template<class T>
class NullAllocator< T >

NULL allocator.

Template Parameters

T	class or type

A NullAllocator is useful for fixed-size, stack based allocations (i.e., static arrays used by FixedSizeAllocatorWithCleanup).

A NullAllocator always returns 0 for max_size(), and always returns NULL for allocation requests. Though the allocator does not allocate at runtime, it does perform a secure wipe or zeroization during cleanup.

Definition at line 298 of file secblock.h.

Member Typedef Documentation

value_type

template<class T >

typedef AllocatorBase<T>::value_type NullAllocator< T >::value_type

Definition at line 302 of file secblock.h.

size_type

template<class T >

typedef AllocatorBase<T>::size_type NullAllocator< T >::size_type

Definition at line 302 of file secblock.h.

difference_type

template<class T >

typedef AllocatorBase<T>::difference_type NullAllocator< T >::difference_type

Definition at line 302 of file secblock.h.

pointer

template<class T >

typedef AllocatorBase<T>::pointer NullAllocator< T >::pointer

Definition at line 302 of file secblock.h.

const_pointer

template<class T >

typedef AllocatorBase<T>::const_pointer NullAllocator< T >::const_pointer

Definition at line 302 of file secblock.h.

reference

template<class T >

typedef AllocatorBase<T>::reference NullAllocator< T >::reference

Definition at line 302 of file secblock.h.

const_reference

template<class T >

typedef AllocatorBase<T>::const_reference NullAllocator< T >::const_reference

Definition at line 302 of file secblock.h.

Member Function Documentation

allocate()

template<class T >

pointer NullAllocator< T >::allocate ( size_type  n, const void *  unused = NULL  )

inline

Definition at line 307 of file secblock.h.

deallocate()

template<class T >

void NullAllocator< T >::deallocate ( void *  p, size_type  n  )

inline

Definition at line 313 of file secblock.h.

max_size()

template<class T >

size_type NullAllocator< T >::max_size ( ) const

inline

Definition at line 319 of file secblock.h.

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

• secblock.h