MemCore::DynPtr< Object, ObjectBase > Class Template Reference

Encapsuled pointer class for pointers pointing to derived classes. More...

#include <elementary/memcore/DynPtr.hpp>

Inheritance diagram for MemCore::DynPtr< Object, ObjectBase >:

Public Types
typedef Object	object_t
	Type of the associated object.

Public Member Functions
const DynPtr &	getDynPtr () const noexcept
	Convenience type cast to dynamic pointer class.
const type_info &	getType () const noexcept
	Return type info of associated object, typeid(NullPtr) or typeid(void) if none.
bool	isAssignable (const DynPtr< ObjectBase, ObjectBase > &Other) const noexcept
	Check whether a given pointer to a base class may be assigned to a pointer of the derived class.

Static Public Member Functions
static const DynPtr &	getNullPtr () noexcept
	Associated static NullPtr - avoids creation of a temporary object when a reference is needed.

Protected Member Functions
template<class AnyObject >
	DynPtr (const DynPtr< AnyObject, ObjectBase > &Other) noexcept
	Implicit type conversion within the same class hierarchy Any pointer.
	DynPtr (const std::nullptr_t &) noexcept
	Assign from nullptr.

Validity Operators
	operator void * () const noexcept
	Check if the pointer is valid.
bool	operator! () const noexcept
	Check if the pointer is invalid.
void	speak (const char *s, const char *prefix="") const noexcept
	Print some debug messages to the console.
void	Speak (const char *s, const char *prefix="") const
	Verbose information printing for this pointer.

Detailed Description

template<class Object, class ObjectBase>
class MemCore::DynPtr< Object, ObjectBase >

Encapsuled pointer class for pointers pointing to derived classes.

It performs a native dynamic_cast<> on assignment and construction and caches the result.

Member Function Documentation

isAssignable()

template<class Object , class ObjectBase >

bool MemCore::DynPtr< Object, ObjectBase >::isAssignable ( const DynPtr< ObjectBase, ObjectBase > &  Other ) const

inlinenoexcept

Check whether a given pointer to a base class may be assigned to a pointer of the derived class.

This function doesn't need to create a new pointer and is thus little lighter than pointer assignment, it basically just involves a dynamic_cast.

operator void *()

template<class Object , class ObjectBase >

MemCore::DynPtr< Object, ObjectBase >::operator void * ( ) const

inlinenoexcept

Check if the pointer is valid.

Note that the referred object might still exist, but not be of the appropriate type.

operator!()

template<class Object , class ObjectBase >

bool MemCore::DynPtr< Object, ObjectBase >::operator! ( ) const

inlinenoexcept

Check if the pointer is invalid.

Note that the referred object might still exist, but not be of the appropriate type.