std::pointer_traits - Man Page

Uniform interface to all pointer-like types.

Synopsis

#include <memory>

Inherits std::__ptr_traits_impl< _Ptr, _Elt >.

Public Types

using difference_type = __detected_or_t< ptrdiff_t, __diff_t, _Ptr >
The type used to represent the difference between two pointers.
using element_type = _Elt
The type pointed to.
using pointer = _Ptr
The pointer type.
template<typename _Up > using rebind = typename __detected_or_t< __replace_first_arg< _Ptr, _Up >, __rebind, _Ptr, _Up >::type
A pointer to a different type.

Static Public Member Functions

static pointer pointer_to (element_type &__r)
Obtain a pointer to an object.

Detailed Description

template<typename _Ptr>

struct std::pointer_traits< _Ptr >"Uniform interface to all pointer-like types.

Since

C++11

Definition at line 181 of file ptr_traits.h.

Member Typedef Documentation

template<typename _Ptr , typename _Elt > using std::__ptr_traits_impl< _Ptr, _Elt >::difference_type =  __detected_or_t<ptrdiff_t, __diff_t, _Ptr> [inherited]

The type used to represent the difference between two pointers.

Definition at line 160 of file ptr_traits.h.

template<typename _Ptr , typename _Elt > using std::__ptr_traits_impl< _Ptr, _Elt >::element_type =  _Elt [inherited]

The type pointed to.

Definition at line 157 of file ptr_traits.h.

template<typename _Ptr , typename _Elt > using std::__ptr_traits_impl< _Ptr, _Elt >::pointer =  _Ptr [inherited]

The pointer type.

Definition at line 154 of file ptr_traits.h.

template<typename _Ptr , typename _Elt > template<typename _Up > using std::__ptr_traits_impl< _Ptr, _Elt >::rebind =  typename __detected_or_t<__replace_first_arg<_Ptr, _Up>, __rebind, _Ptr, _Up>::type [inherited]

A pointer to a different type.

Definition at line 164 of file ptr_traits.h.

Member Function Documentation

template<typename _Ptr , typename _Elt , bool  = is_void<_Elt>::value> static pointer std::__ptr_traits_ptr_to< _Ptr, _Elt, bool >::pointer_to (element_type & __r) [inline], [static], [inherited]

Obtain a pointer to an object.

Parameters

__r A reference to an object of type element_type

Returns

pointer::pointer_to(__r)

Precondition

pointer::pointer_to(__r) is a valid expression.

Definition at line 111 of file ptr_traits.h.

Author

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Info

Thu Jan 19 2023 libstdc++