provide a simple implementation of std::experimental::simd #763
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[std::experimental::simd}(https://en.cppreference.com/w/cpp/experimental/simd) is currently targeted for C++26 🤞🏻.
In the meantime, it's fairly easy to hook up a simple version by using
std::array<T, 4>; and thanks to auto-vectorization, performance isn't abysmal.