LocalPointer< T > Class Template Reference

"Smart pointer" class, deletes objects via the standard C++ delete operator. More...

#include <localpointer.h>

Inheritance diagram for LocalPointer< T >:

Public Member Functions
	LocalPointer (T *p=NULL)
	Constructor takes ownership.
	~LocalPointer ()
	Destructor deletes the object it owns.
void	adoptInstead (T *p)
	Deletes the object it owns, and adopts (takes ownership of) the one passed in.
Public Member Functions inherited from LocalPointerBase< T >
	LocalPointerBase (T *p=NULL)
	Constructor takes ownership.
	~LocalPointerBase ()
	Destructor deletes the object it owns.
UBool	isNull () const
	NULL check.
UBool	isValid () const
	NULL check.
bool	operator== (const T *other) const
	Comparison with a simple pointer, so that existing code with ==NULL need not be changed.
bool	operator!= (const T *other) const
	Comparison with a simple pointer, so that existing code with !=NULL need not be changed.
T *	getAlias () const
	Access without ownership change.
T &	operator* () const
	Access without ownership change.
T *	operator-> () const
	Access without ownership change.
T *	orphan ()
	Gives up ownership; the internal pointer becomes NULL.
void	adoptInstead (T *p)
	Deletes the object it owns, and adopts (takes ownership of) the one passed in.

Additional Inherited Members
Protected Attributes inherited from LocalPointerBase< T >
T *	ptr
	Actual pointer.

Detailed Description

template<typename T>
class LocalPointer< T >

"Smart pointer" class, deletes objects via the standard C++ delete operator.

For most methods see the LocalPointerBase base class.

Usage example:

LocalPointer<UnicodeString> s(new UnicodeString((UChar32)0x50005));
int32_t length=s->length();  // 2
UChar lead=s->charAt(0);  // 0xd900
if(some condition) { return; }  // no need to explicitly delete the pointer
s.adoptInstead(new UnicodeString((UChar)0xfffc));
length=s->length();  // 1
// no need to explicitly delete the pointer

See also

LocalPointerBase

Stable

ICU 4.4

Definition at line 186 of file localpointer.h.

Constructor & Destructor Documentation

LocalPointer()

template<typename T>

LocalPointer< T >::LocalPointer ( T * p = NULL )

inlineexplicit

Constructor takes ownership.

Parameters

p	simple pointer to an object that is adopted

Stable

ICU 4.4

Definition at line 193 of file localpointer.h.

References LocalPointerBase< T >::LocalPointerBase(), and NULL.

~LocalPointer()

template<typename T>

LocalPointer< T >::~LocalPointer ( )

inline

Destructor deletes the object it owns.

Stable

ICU 4.4

Definition at line 198 of file localpointer.h.

References LocalPointerBase< T >::ptr.

Member Function Documentation

adoptInstead()

template<typename T>

void LocalPointer< T >::adoptInstead ( T * p )

inline

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

Parameters

p	simple pointer to an object that is adopted

Stable

ICU 4.4

Definition at line 207 of file localpointer.h.

References LocalPointerBase< T >::ptr.

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

• localpointer.h