std::out_ptr_t<Smart,Pointer,Args...>::out_ptr_t

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std::out_ptr_t

Member functions
out_ptr_t::out_ptr_t
out_ptr_t::~out_ptr_t
out_ptr_t::operator Pointerout_ptr_t::operator void*
Non-member functions
out_ptr

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explicit out_ptr_t( Smart&sp, Args...args);	(1)	(since C++23)
out_ptr_t(const out_ptr_t&)= delete;	(2)	(since C++23)

1) Creates anout_ptr_t. Adaptssp as if binds it to theSmart& member, captures every argumentt inargs... as if initializes the corresponding member of typeT inArgs... withstd::forward<T>(t), then value-initializes the storedPointer.
Then callssp.reset() if the expression is well-formed; otherwise, callssp= Smart() ifstd::is_default_constructible_v<Smart> istrue. The program is ill-formed if both resetting operations are ill-formed.

2) Copy constructor is explicitly deleted.out_ptr_t is neither copyable nor movable.

[edit]Parameters

sp	-	the object (typically a smart pointer) to adapt
args...	-	the arguments used for resetting to capture

[edit]Return value

(none)

[edit]Exceptions

May throw implementation-defined exceptions.

[edit]Notes

After construction, thePointer orvoid* object pointed by the return value of either conversion function is equal tonullptr.

Every argument inargs... is moved into the createdout_ptr_t if it is of an object type, or transferred into the createdout_ptr_t as-is if it is of a reference type.

The constructor ofout_ptr_t is allowed to throw exceptions. For example, whensp is astd::shared_ptr, the allocation for the new control block may be performed within the constructor rather than the destructor.