The question is not about the utility of box<T>, i am sure there are cases where such a structure would be need.
But box<T> is not a "pointer" in the C++ sense same as an array/vector of 1 is not a pointer.
The authors is needlessly complicating things and mixing concept there are pretty orthogonal. And i think this is the result of trying to fit box<T> which is not a pointer inside a taxonomy of pointers...
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And yet nobody use calls a vector of 1 a pointer.
The question is not about the utility of box<T>, i am sure there are cases where such a structure would be need.
But box<T> is not a "pointer" in the C++ sense same as an array/vector of 1 is not a pointer.
The authors is needlessly complicating things and mixing concept there are pretty orthogonal. And i think this is the result of trying to fit box<T> which is not a pointer inside a taxonomy of pointers...