Allocator Class Template Reference

List of all members.

---

Detailed Description

template<typename T>
class omni::pool::Allocator< T >

Fast allocator for STL containers.

This class uses global pool and can be used with many STL containers. Any allocation/deallocation methods use mem_get_sized() and mem_put_sized() functions.

For example:

  std::vector<double, omni::pool::Allocator<double> > a;
  std::list<int, omni::pool::Allocator<int> > b;

Public Types

• typedef T value_type

  Value type.
  

• typedef const T & const_reference

  Constant reference type.
  

• typedef T & reference

  Reference type.
  

• typedef const T * const_pointer

  Constant pointer type.
  

• typedef T * pointer

  Pointer type.
  

• typedef ptrdiff_t difference_type

  Difference type.
  

• typedef size_t size_type

  Size type.
  

Public Member Functions

• const_pointer address (const_reference x) const

  Get address by constant reference.
  

• pointer address (reference x) const

  Get address by reference.
  

• Allocator ()

  Default constructor.
  

• template<typename U> Allocator (const Allocator< U > &)

  Auxiliary copy-constructor.
  

• template<typename U> Allocator< T > & operator= (const Allocator< U > &)

  Auxiliary assignment operator.
  

• pointer allocate (size_type n)

  The memory allocation.
  

• pointer allocate (size_type n, const void *)

  The memory allocation.
  

• char * _Charalloc (size_type n)

  The memory allocation.
  

• void deallocate (void *p, size_type)

  The memory deallocation.
  

• void construct (pointer p, const_reference x)

  Object construction.
  

• void destroy (pointer p)

  Object destruction.
  

• size_type max_size () const

  Maximum number of objects.
  

Classes

• struct rebind

  Auxiliary structure. More...
  

---

Member Typedef Documentation

typedef T value_type

Value type.

typedef const T& const_reference

Constant reference type.

typedef T& reference

Reference type.

typedef const T* const_pointer

Constant pointer type.

typedef T* pointer

Pointer type.

typedef ptrdiff_t difference_type

Difference type.

typedef size_t size_type

Size type.

---

Constructor & Destructor Documentation

Allocator

(

)

[inline]

Default constructor.

Allocator

(

const Allocator< U > &

)

[inline]

Auxiliary copy-constructor.

---

Member Function Documentation

const_pointer address

(

const_reference

x

)

const [inline]

Get address by constant reference.

Parameters:

[in]

x

The constant reference.

Returns:

The constant pointer.

pointer address

(

reference

x

)

const [inline]

Get address by reference.

Parameters:

[in]

x

The reference.

Returns:

The pointer.

Allocator<T>& operator=

(

const Allocator< U > &

)

[inline]

Auxiliary assignment operator.

pointer allocate

(

size_type

n

)

[inline]

The memory allocation.

This method allocates memory block for n objects.

Parameters:

[in]

n

The number of adjacent objects.

Returns:

The memory block.

pointer allocate	(	size_type	n,
		const void *
	)			[inline]

The memory allocation.

This method allocates memory block for n objects. Second argument (allocation hint) is not used.

Parameters:

[in]

n

The number of adjacent objects.

Returns:

The memory block.

char* _Charalloc

(

size_type

n

)

[inline]

The memory allocation.

This method allocates memory block of n bytes. It is used by STL containers in Visual C++ 6.0!

Parameters:

[in]

n

The memory block size in bytes.

Returns:

The memory block.

void deallocate	(	void *	p,
		size_type
	)			[inline]

The memory deallocation.

This method deallocates memory block p. the second argument (memory block size) is not used.

Parameters:

[in]

p

The memory block.

void construct	(	pointer	p,
		const_reference	x
	)			[inline]

Object construction.

This method constructs the object at address p using placement new operator.

Parameters:

[in]	p	The address of object.
[in]	x	Construction prototype.

void destroy

(

pointer

p

)

[inline]

Object destruction.

This method destroys object p.

Parameters:

[in]

p

The address of object.

size_type max_size

(

)

const [inline]

Maximum number of objects.

This method returns the maximum number of objects, which can be allocated using this allocator.

Returns:

The maximum number of objects.

---