Parma_Polyhedra_Library::Temp_Item< T > Class Template Reference

A pool of temporary items of type T. More...

#include <Temp_defs.hh>

Collaboration diagram for Parma_Polyhedra_Library::Temp_Item< T >:

Classes
class	Free_List

Public Member Functions
T &	item ()
	Returns a reference to the encapsulated item. More...

Static Public Member Functions
static Temp_Item &	obtain ()
	Obtains a reference to a temporary item. More...
static void	release (Temp_Item &p)
	Releases the temporary item p. More...

Private Member Functions
	Temp_Item ()
	Default constructor. More...
	Temp_Item (const Temp_Item &)
	Copy constructor: private and intentionally not implemented. More...
Temp_Item &	operator= (const Temp_Item &)
	Assignment operator: private and intentionally not implemented. More...

Static Private Member Functions
static Temp_Item *&	free_list_ref ()
	Head of the free list. More...

Private Attributes
T	item_
	The encapsulated item. More...
Temp_Item *	next
	Pointer to the next item in the free list. More...

Friends
class	Free_List

Detailed Description

template<typename T>
class Parma_Polyhedra_Library::Temp_Item< T >

A pool of temporary items of type T.

Definition at line 36 of file Temp_defs.hh.

Constructor & Destructor Documentation

template<typename T >

Parma_Polyhedra_Library::Temp_Item< T >::Temp_Item ( )

inlineprivate

Default constructor.

Definition at line 33 of file Temp_inlines.hh.

Referenced by Parma_Polyhedra_Library::Temp_Item< T >::obtain().

  : item_() {
}

template<typename T>

Parma_Polyhedra_Library::Temp_Item< T >::Temp_Item ( const Temp_Item< T > &  )

private

Copy constructor: private and intentionally not implemented.

Member Function Documentation

template<typename T >

Temp_Item< T > *& Parma_Polyhedra_Library::Temp_Item< T >::free_list_ref ( )

inlinestaticprivate

Head of the free list.

Definition at line 51 of file Temp_inlines.hh.

References Parma_Polyhedra_Library::Temp_Item< T >::Free_List::head_ptr.

Referenced by Parma_Polyhedra_Library::Temp_Item< T >::obtain(), and Parma_Polyhedra_Library::Temp_Item< T >::release().

                            {
  static Free_List free_list;
  return free_list.head_ptr;
}

template<typename T >

T & Parma_Polyhedra_Library::Temp_Item< T >::item ( )

inline

Returns a reference to the encapsulated item.

Definition at line 39 of file Temp_inlines.hh.

                   {
    return item_;
}

template<typename T >

Temp_Item< T > & Parma_Polyhedra_Library::Temp_Item< T >::obtain ( )

inlinestatic

Obtains a reference to a temporary item.

Definition at line 58 of file Temp_inlines.hh.

References Parma_Polyhedra_Library::Temp_Item< T >::free_list_ref(), Parma_Polyhedra_Library::Temp_Item< T >::next, and Parma_Polyhedra_Library::Temp_Item< T >::Temp_Item().

                     {
  Temp_Item* const p = free_list_ref();
  if (p != 0) {
    free_list_ref() = p->next;
    return *p;
  }
  else {
    return *new Temp_Item();
  }
}

template<typename T>

Temp_Item& Parma_Polyhedra_Library::Temp_Item< T >::operator= ( const Temp_Item< T > &  )

private

Assignment operator: private and intentionally not implemented.

template<typename T >

void Parma_Polyhedra_Library::Temp_Item< T >::release ( Temp_Item< T > &  p )

inlinestatic

Releases the temporary item p.

Definition at line 71 of file Temp_inlines.hh.

References Parma_Polyhedra_Library::Temp_Item< T >::free_list_ref(), and Parma_Polyhedra_Library::Temp_Item< T >::next.

Referenced by Parma_Polyhedra_Library::Temp_Reference_Holder< T >::~Temp_Reference_Holder().

                                  {
  p.next = free_list_ref();
  free_list_ref() = &p;
}

Friends And Related Function Documentation

template<typename T>

friend class Free_List

friend

Definition at line 64 of file Temp_defs.hh.

Member Data Documentation

template<typename T>

T Parma_Polyhedra_Library::Temp_Item< T >::item_

private

The encapsulated item.

Definition at line 49 of file Temp_defs.hh.

template<typename T>

Temp_Item* Parma_Polyhedra_Library::Temp_Item< T >::next

private

Pointer to the next item in the free list.

Definition at line 52 of file Temp_defs.hh.

Referenced by Parma_Polyhedra_Library::Temp_Item< T >::obtain(), Parma_Polyhedra_Library::Temp_Item< T >::release(), and Parma_Polyhedra_Library::Temp_Item< T >::Free_List::~Free_List().

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

• Temp_defs.hh
• Temp_inlines.hh