std::out_ptr_t<Smart,Pointer,Args...>::out_ptr_t
// 1)
explicit out_ptr_t( Smart &sp, Args... args );
// 2)
out_ptr_t( const out_ptr_t& ) = delete;
Creates an out_ptr_t. Adapts sp as if binds it to the Smart& member, captures every argument t in args...
as if initializes the corresponding member of type T in Args... with std::forward<T>(t), then value-initializes the stored Pointer.
Copy constructor is explicitly deleted. out_ptr_t is neither copyable nor movable.
Parameters
sp - the object (typically a smart pointer) to adapt
args... - the arguments used for resetting to capture
Return value
(none)
Exceptions
May throw implementation-defined exceptions.
Notes
After construction, the Pointer or void* object pointed by the return value of either conversion function is equal to nullptr.
Every argument in args... is moved into the created out_ptr_t if it is of an object type, or transferred into the created
out_ptr_t as-is if it is of a reference type.
The constructor of out_ptr_t is allowed to throw exceptions. For example, when sp is a std::shared_ptr,
the allocation for the new control block may be performed within the constructor rather than the destructor.