bdm::shared_ptr< T > Class Template Reference

A naive implementation of roughly a subset of the std::tr1::shared_ptr spec. More...


Detailed Description

template<typename T>
class bdm::shared_ptr< T >

A naive implementation of roughly a subset of the std::tr1::shared_ptr spec.

Really just roughly - it ignores memory exceptions, for example; also note I didn't read the spec.

The standard template would naturally be preferable, if it was included in the standard libraries of all supported compilers - but as of 2009, that's still a problem...

#include <shared_ptr.h>

List of all members.

Public Member Functions

 shared_ptr ()
 Default constructor.
 shared_ptr (T *p)
 shared_ptr (const shared_ptr< T > &other)
 Copy constructor.
template<typename U >
 shared_ptr (const shared_ptr< U > &other)
 Generalized copy.
 ~shared_ptr ()
shared_ptr< T > & operator= (const shared_ptr< T > &other)
 Assignment operator.
T * get ()
T * operator-> ()
T & operator* ()
const T * get () const
const T * operator-> () const
const T & operator* () const
bool unique () const
 Returns use_count() == 1.
long use_count () const
 operator bool () const
 Boolean cast.
template<typename U >
 operator shared_ptr< const U > () const
 const cast
void swap (shared_ptr &other)
 Efficient swap for shared_ptr.

Friends

class shared_ptr

Constructor & Destructor Documentation

template<typename T>
bdm::shared_ptr< T >::shared_ptr (  )  [inline]

Default constructor.

Creates an empty shared_ptr - one that doesn't point anywhere.

template<typename T>
bdm::shared_ptr< T >::shared_ptr ( T *  p  )  [inline]

Constructs a shared_ptr that owns the pointer p (unless p is NULL, in which case this constructor creates an empty shared_ptr). When p isn't null, it must have been alllocated by new!

template<typename T>
bdm::shared_ptr< T >::shared_ptr ( const shared_ptr< T > &  other  )  [inline]

Copy constructor.

If other is empty, constructs an empty shared_ptr; otherwise, constructs a shared_ptr that shares ownership with other.

template<typename T>
template<typename U >
bdm::shared_ptr< T >::shared_ptr ( const shared_ptr< U > &  other  )  [inline]

Generalized copy.

Allows initialization of shared pointer of a base type from raw pointer to a derived type.

If other is empty, constructs an empty shared_ptr; otherwise, constructs a shared_ptr that shares ownership with other.

template<typename T>
bdm::shared_ptr< T >::~shared_ptr (  )  [inline]

Destructor.


Member Function Documentation

template<typename T>
const T* bdm::shared_ptr< T >::get (  )  const [inline]

Returns the stored pointer (which remains owned by this instance). For empty instances, this method returns NULL.

template<typename T>
T* bdm::shared_ptr< T >::get (  )  [inline]

Returns the stored pointer (which remains owned by this instance). For empty instances, this method returns NULL.

Referenced by bdm::mepdf::from_setting(), bdm::mepdf::mepdf(), and bdm::Kalman< fsqmat >::posterior().

template<typename T>
bdm::shared_ptr< T >::operator bool (  )  const [inline]

Boolean cast.

This operator returns true if and only if the instance isn't empty.

template<typename T>
template<typename U >
bdm::shared_ptr< T >::operator shared_ptr< const U > (  )  const [inline]

const cast

Shared pointer to T can be converted to shared pointer to const T, just like T * can be converted to T const *.

template<typename T>
const T& bdm::shared_ptr< T >::operator* (  )  const [inline]

Returns a reference to the object pointed to by the stored pointer. This method may only be called when the stored pointer isn't NULL.

template<typename T>
T& bdm::shared_ptr< T >::operator* (  )  [inline]

Returns a reference to the object pointed to by the stored pointer. This method may only be called when the stored pointer isn't NULL.

template<typename T>
const T* bdm::shared_ptr< T >::operator-> (  )  const [inline]

Returns the stored pointer (which remains owned by this instance). This method may only be called when the stored pointer isn't NULL.

template<typename T>
T* bdm::shared_ptr< T >::operator-> (  )  [inline]

Dereferences the stored pointer (which remains owned by this instance). This method may only be called when the stored pointer isn't NULL.

template<typename T>
long bdm::shared_ptr< T >::use_count (  )  const [inline]

Returns the number of shared_ptr instances (including this instance) that share ownership with this instance. For empty instances, this method returns 0.


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

Generated on Wed Sep 16 22:33:34 2009 for mixpp by  doxygen 1.6.1