"Smart pointer" base class; do not use directly: use LocalPointer etc. More...

#include <localpointer.h>

Inheritance diagram for icu::LocalPointerBase< T >:

Public Member Functions
	LocalPointerBase (T *p=NULL)
	Constructor takes ownership. More...

	~LocalPointerBase ()
	Destructor deletes the object it owns. More...

UBool	isNull () const
	NULL check. More...

UBool	isValid () const
	NULL check. More...

bool	operator== (const T *other) const
	Comparison with a simple pointer, so that existing code with ==NULL need not be changed. More...

bool	operator!= (const T *other) const
	Comparison with a simple pointer, so that existing code with !=NULL need not be changed. More...

T *	getAlias () const
	Access without ownership change. More...

T &	operator* () const
	Access without ownership change. More...

T *	operator-> () const
	Access without ownership change. More...

T *	orphan ()
	Gives up ownership; the internal pointer becomes NULL. More...

void	adoptInstead (T *p)
	Deletes the object it owns, and adopts (takes ownership of) the one passed in. More...

Static Public Member Functions
static void *	operator new (size_t)=delete

static void *	operator new[] (size_t)=delete

Protected Attributes
T *	ptr
	Actual pointer. More...

Detailed Description

template<typename T>
class icu::LocalPointerBase< T >

"Smart pointer" base class; do not use directly: use LocalPointer etc.

Base class for smart pointer classes that do not throw exceptions.

Do not use this base class directly, since it does not delete its pointer. A subclass must implement methods that delete the pointer: Destructor and adoptInstead().

There is no operator T *() provided because the programmer must decide whether to use getAlias() (without transfer of ownership) or orphan() (with transfer of ownership and NULLing of the pointer).

See also: LocalPointer; LocalArray; U_DEFINE_LOCAL_OPEN_POINTER

Stable:: ICU 4.4

Definition at line 68 of file localpointer.h.

Constructor & Destructor Documentation

◆ LocalPointerBase()

template<typename T>

icu::LocalPointerBase< T >::LocalPointerBase ( T * p = NULL )

inlineexplicit

Constructor takes ownership.

Parameters

p	simple pointer to an object that is adopted

Stable:: ICU 4.4

Definition at line 82 of file localpointer.h.

◆ ~LocalPointerBase()

template<typename T>

icu::LocalPointerBase< T >::~LocalPointerBase ( )

inline

Destructor deletes the object it owns.

Subclass must override: Base class does nothing.

Stable:: ICU 4.4

Definition at line 88 of file localpointer.h.

Member Function Documentation

◆ adoptInstead()

template<typename T>

void icu::LocalPointerBase< T >::adoptInstead ( T * p )

inline

Deletes the object it owns, and adopts (takes ownership of) the one passed in.

Subclass must override: Base class does not delete the object.

Parameters

p	simple pointer to an object that is adopted

Stable:: ICU 4.4

Definition at line 153 of file localpointer.h.

◆ getAlias()

template<typename T>

T* icu::LocalPointerBase< T >::getAlias ( ) const

inline

Access without ownership change.

Returns: the pointer value

Stable:: ICU 4.4

Definition at line 122 of file localpointer.h.

◆ isNull()

template<typename T>

UBool icu::LocalPointerBase< T >::isNull ( ) const

inline

NULL check.

Returns: TRUE if ==NULL

Stable:: ICU 4.4

Definition at line 94 of file localpointer.h.

References NULL.

◆ isValid()

template<typename T>

UBool icu::LocalPointerBase< T >::isValid ( ) const

inline

NULL check.

Returns: TRUE if !=NULL

Stable:: ICU 4.4

Definition at line 100 of file localpointer.h.

References NULL.

◆ operator!=()

template<typename T>

bool icu::LocalPointerBase< T >::operator!= ( const T * other ) const

inline

Comparison with a simple pointer, so that existing code with !=NULL need not be changed.

Parameters

other simple pointer for comparison

Returns: true if this pointer value differs from other

Stable:: ICU 4.4

Definition at line 116 of file localpointer.h.

◆ operator*()

template<typename T>

T& icu::LocalPointerBase< T >::operator* ( ) const

inline

Access without ownership change.

Returns: the pointer value as a reference

Stable:: ICU 4.4

Definition at line 128 of file localpointer.h.

◆ operator->()

template<typename T>

T* icu::LocalPointerBase< T >::operator-> ( ) const

inline

Access without ownership change.

Returns: the pointer value

Stable:: ICU 4.4

Definition at line 134 of file localpointer.h.

◆ operator==()

template<typename T>

bool icu::LocalPointerBase< T >::operator== ( const T * other ) const

inline

Comparison with a simple pointer, so that existing code with ==NULL need not be changed.

Parameters

other simple pointer for comparison

Returns: true if this pointer value equals other

Stable:: ICU 4.4

Definition at line 108 of file localpointer.h.

◆ orphan()

template<typename T>

T* icu::LocalPointerBase< T >::orphan ( )

inline

Gives up ownership; the internal pointer becomes NULL.

Returns: the pointer value; caller becomes responsible for deleting the object

Stable:: ICU 4.4

Definition at line 141 of file localpointer.h.

References NULL.

Field Documentation

◆ ptr

template<typename T>

T* icu::LocalPointerBase< T >::ptr

protected

Actual pointer.

Internal:: Do not use. This API is for internal use only.

Definition at line 162 of file localpointer.h.

Referenced by icu::LocalArray< T >::LocalArray(), icu::LocalPointer< T >::LocalPointer(), icu::LocalPointer< T >::operator=(), icu::LocalArray< T >::operator=(), icu::LocalPointer< T >::swap(), and icu::LocalArray< T >::swap().

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

localpointer.h

Public Member Functions

Static Public Member Functions

Protected Attributes

Detailed Description

template<typename T> class icu::LocalPointerBase< T >

Constructor & Destructor Documentation

◆ LocalPointerBase()

◆ ~LocalPointerBase()

Member Function Documentation

◆ adoptInstead()

◆ getAlias()

◆ isNull()

◆ isValid()

◆ operator!=()

◆ operator*()

◆ operator->()

◆ operator==()

◆ orphan()

Field Documentation

◆ ptr

template<typename T>
class icu::LocalPointerBase< T >