Pointer Safety and Garbage Collection

Collaboration diagram for Pointer Safety and Garbage Collection:

Enumerations
enum class	std::pointer_safety { relaxed , preferred , strict }

Functions
void	std::declare_no_pointers (char *, size_t)
void	std::declare_reachable (void *)
pointer_safety	std::get_pointer_safety () noexcept
void	std::undeclare_no_pointers (char *, size_t)
template<typename _Tp >
_Tp *	std::undeclare_reachable (_Tp *__p)

Detailed Description

Utilities to assist with garbage collection in an implementation that supports strict pointer safety. This implementation only supports relaxed pointer safety and so these functions have no effect.

C++11 20.6.4 [util.dynamic.safety], Pointer safety

Enumeration Type Documentation

pointer_safety

enum class std::pointer_safety

strong

Constants representing the different types of pointer safety.

Definition at line 109 of file memory.

Function Documentation

declare_no_pointers()

void std::declare_no_pointers ( char *  , size_t    )

inline

Inform a garbage collector that a region of memory need not be traced.

Definition at line 122 of file memory.

declare_reachable()

void std::declare_reachable ( void *  )

inline

Inform a garbage collector that an object is still in use.

Definition at line 113 of file memory.

get_pointer_safety()

pointer_safety std::get_pointer_safety ( )

inlinenoexcept

The type of pointer safety supported by the implementation.

Definition at line 130 of file memory.

undeclare_no_pointers()

void std::undeclare_no_pointers ( char *  , size_t    )

inline

Unregister a range previously registered with declare_no_pointers.

Definition at line 126 of file memory.

undeclare_reachable()

template<typename _Tp >

_Tp * std::undeclare_reachable ( _Tp *  __p )

inline

Unregister an object previously registered with declare_reachable.

Definition at line 118 of file memory.