Crypto++  5.6.3
Free C++ class library of cryptographic schemes
Public Types | Public Member Functions | List of all members
NullAllocator< T > Class Template Reference

NULL allocator. More...

+ 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. More...
 
template<typename U , typename... Args>
void construct (U *ptr, Args &&...args)
 Constructs a new U using variadic arguments. More...
 
template<typename U >
void destroy (U *ptr)
 Destroys an U constructed with variadic arguments. More...
 

Detailed Description

template<class T>
class NullAllocator< T >

NULL allocator.

Template Parameters
Tclass 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 253 of file secblock.h.


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