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


__gnu_cxx::_ExtPtr_allocator< _Tp > - An example allocator which uses a non-standard pointer type.


#include <extptr_allocator.h>

Public Types

typedef _Pointer_adapter< _Relative_pointer_impl< const _Tp > > const_pointer
typedef const _Tp & const_reference
typedef std::ptrdiff_t difference_type
typedef _Pointer_adapter< _Relative_pointer_impl< _Tp > > pointer
typedef _Tp & reference
typedef std::size_t size_type
typedef _Tp value_type

Public Member Functions

_ExtPtr_allocator (const _ExtPtr_allocator &__rarg) noexcept
template<typename _Up > _ExtPtr_allocator (const _ExtPtr_allocator< _Up > &__rarg) noexcept
const std::allocator< _Tp > & _M_getUnderlyingImp () const
const_pointer address (const_reference __x) const noexcept
pointer address (reference __x) const noexcept
pointer allocate (size_type __n, const void *=0)
template<typename _Up , typename... _Args> void construct (_Up *__p, _Args &&... __args)
template<typename... _Args> void construct (pointer __p, _Args &&... __args)
void deallocate (pointer __p, size_type __n)
template<typename _Up > void destroy (_Up *__p)
void destroy (pointer __p)
size_type max_size () const noexcept
bool operator== (const _ExtPtr_allocator &__rarg) const
template<typename _Up > bool operator== (const _ExtPtr_allocator< _Up > &__rarg) const


template<typename _Up > void swap (_ExtPtr_allocator< _Up > &, _ExtPtr_allocator< _Up > &)

Detailed Description

template<typename _Tp>

class __gnu_cxx::_ExtPtr_allocator< _Tp >"An example allocator which uses a non-standard pointer type.

This allocator specifies that containers use a 'relative pointer' as it's pointer type. (See ext/pointer.h) Memory allocation in this example is still performed using std::allocator.


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