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__gnu_cxx::_Relative_pointer_impl< _Tp >(3cxx) __gnu_cxx::_Relative_pointer_impl< _Tp >(3cxx)

NAME

__gnu_cxx::_Relative_pointer_impl< _Tp > - A storage policy for use with _Pointer_adapter<> which stores the pointer's address as an offset value which is relative to its own address.

SYNOPSIS

#include <pointer.h>

Public Types


typedef _Tp element_type

Public Member Functions


_Tp * get () const
bool operator< (const _Relative_pointer_impl &__rarg) const
bool operator== (const _Relative_pointer_impl &__rarg) const
void set (_Tp *__arg)

Detailed Description

template<typename _Tp>

class __gnu_cxx::_Relative_pointer_impl< _Tp >"A storage policy for use with _Pointer_adapter<> which stores the pointer's address as an offset value which is relative to its own address.

This is intended for pointers within shared memory regions which might be mapped at different addresses by different processes. For null pointers, a value of 1 is used. (0 is legitimate sometimes for nodes in circularly linked lists) This value was chosen as the least likely to generate an incorrect null, As there is no reason why any normal pointer would point 1 byte into its own pointer address.

Definition at line 112 of file pointer.h.

Member Typedef Documentation

template<typename _Tp > typedef _Tp __gnu_cxx::_Relative_pointer_impl< _Tp >::element_type

Definition at line 115 of file pointer.h.

Member Function Documentation

template<typename _Tp > _Tp * __gnu_cxx::_Relative_pointer_impl< _Tp >::get (void) const [inline]

Definition at line 118 of file pointer.h.

template<typename _Tp > bool __gnu_cxx::_Relative_pointer_impl< _Tp >::operator< (const _Relative_pointer_impl< _Tp > & __rarg) const [inline]

Definition at line 138 of file pointer.h.

template<typename _Tp > bool __gnu_cxx::_Relative_pointer_impl< _Tp >::operator== (const _Relative_pointer_impl< _Tp > & __rarg) const [inline]

Definition at line 144 of file pointer.h.

template<typename _Tp > void __gnu_cxx::_Relative_pointer_impl< _Tp >::set (_Tp * __arg) [inline]

Definition at line 128 of file pointer.h.

Author

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Mon Sep 5 2022 libstdc++