std::pointer_traits<Ptr>:: pointer_to
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| Member functions | ||||
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pointer_traits::pointer_to
(C++11)
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(C++20)
(optional)
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Defined in header
<memory>
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static
pointer
pointer_to ( element_type & r ) ; |
(1) |
(since C++11)
(member of
pointer_traits<Ptr>
specialization)
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| (2) | ||
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static
pointer
pointer_to ( element_type & r ) noexcept ; |
(since C++11)
(until C++20) (member of
pointer_traits<T*>
specialization)
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static
constexpr
pointer
pointer_to ( element_type & r ) noexcept ; |
(since C++20)
(member of
pointer_traits<T*>
specialization)
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Constructs a dereferenceable pointer or pointer-like object ( "fancy pointer" ) to its argument.
pointer_to
, instantiation of this function is a compile-time error.
Parameters
| r | - |
reference to an object of type
element_type
&
, except if element_type is
void
, in which case the type of
r
is unspecified
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Return value
A dereferenceable pointer to r , of the type pointer_traits <> :: pointer .
Exceptions
Notes
The Boost.Intrusive library version of this function returns pointer ( std:: addressof ( r ) ) if Ptr :: pointer_to does not exist.
See also
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(C++11)
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obtains actual address of an object, even if the
&
operator is overloaded
(function template) |
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(until C++20)
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obtains the address of an object, even if
operator
&
is overloaded
(public member function of
std::allocator<T>
)
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[static]
(C++20)
(optional)
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obtains a raw pointer from a fancy pointer (inverse of
pointer_to
)
(public static member function) |
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(C++20)
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obtains a raw pointer from a pointer-like type
(function template) |