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Showing content from https://timsong-cpp.github.io/cppwp/n4659/pointer.traits.functions below:

[pointer.traits.functions]

23 General utilities library [utilities] 23.10 Memory [memory] 23.10.3 Pointer traits [pointer.traits] 23.10.3.2 Pointer traits member functions [pointer.traits.functions]

static pointer pointer_traits::pointer_to(see below r); static pointer pointer_traits<T*>::pointer_to(see below r) noexcept;

Remarks: If element_­type is cv void, the type of r is unspecified; otherwise, it is element_­type&.

Returns: The first member function returns a pointer to r obtained by calling Ptr​::​pointer_­to(r) through which indirection is valid; an instantiation of this function is ill-formed if Ptr does not have a matching pointer_­to static member function. The second member function returns addressof(r).


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