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
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.
template<typename _Ptr , typename _Elt > using std::__ptr_traits_impl< _Ptr, _Elt >::element_type = _Elt [inherited]
The type pointed to.
template<typename _Ptr , typename _Elt > using std::__ptr_traits_impl< _Ptr, _Elt >::pointer = _Ptr [inherited]
The pointer type.
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.
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.
Author
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