23 General utilities library [utilities]
static pointer pointer_traits::pointer_to(see below r);
static pointer pointer_traits<T*>::pointer_to(see below r) noexcept;
is cv void
, the type of
is unspecified; otherwise, it is element_type&.
The first member function returns a pointer to r
obtained by calling Ptr::pointer_to(r)
indirection is valid; an instantiation of this function is
ill-formed if Ptr
does not have a matching pointer_to
The second member function returns addressof(r).