What are the advantages of template < auto > that will (possibly) be introduced with C++17?
Is it just a natural extension of auto when I want to instantiate template code?
auto v1 = constant<5>; // v1 == 5, decltype(v1) is int
auto v2 = constant<true>; // v2 == true, decltype(v2) is bool
auto v3 = constant<'a'>; // v3 == 'a', decltype(v3) is char
What else do I gain from this language feature?
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