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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

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 109 of file pointer.h.

Author

Generated automatically by Doxygen for libstdc++ from the source code.
Tue May 19 2020 libstdc++