An implementation detail for the type-specific templated cell pointers. More...

#include <CellPtr.h>

Inheritance diagram for CellPtrBase:

Public Member Functions
	operator bool () const noexcept

void	reset () noexcept

auto	cmpPointers (const CellPtrBase &o) const noexcept
	This is exactly like the spaceship operator in C++20.

auto	cmpObjects (const CellPtrBase &o) const noexcept
	This is the spaceship operator acting on pointed-to objects.

auto	cmpObjects (const Observed *o) const noexcept
	This is the spaceship operator acting on pointed-to objects.

bool	IsNull () const

bool	HasOneObserved () const

bool	HasControlBlock () const

Static Public Member Functions
template<typename U >
static bool constexpr	is_pointer ()

static size_t	GetLiveInstanceCount () noexcept

Protected Member Functions
	CellPtrBase (Observed *obj=nullptr) noexcept

	CellPtrBase (const CellPtrBase &o) noexcept

	CellPtrBase (CellPtrBase &&o) noexcept

CellPtrBase &	operator= (const CellPtrBase &o) noexcept

CellPtrBase &	operator= (CellPtrBase &&o) noexcept

Observed *	base_get () const noexcept

void	base_reset (Observed *obj=nullptr) noexcept

Detailed Description

An implementation detail for the type-specific templated cell pointers.

A CellPtrBase (and thus the derived CellPtr) can be in one of 3 states:

Pointing to no object: its m_ptr is null.
A sole pointer to an object: its m_ptr points to the Observed, and observed's m_ptr points back at this pointer.
One of many pointers to the object: its m_ptr points to the Observed::ControlBlock, and the observed's m_ptr also points to the control block.

Member Function Documentation

void CellPtrBase::base_reset ( Observed * obj = nullptr )

protectednoexcept

Different objects must have control blocks that are either null or non-null but different.

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