Things C++26 define_static_array can’t do
Summary
The article argues that C++26's define_static_array, while offering a cleaner compile-time path to static data, cannot replace all uses of the traditional constexpr two-step technique. It highlights limitations such as support only for structural types, issues with pointers to string literals, move-only types, and the inability to produce mutable static storage, and discusses potential future work via reflection proposals (P3380) and related papers.