Function pointer_range

deps/argsparse/argsparse.hpp:191–193

}

constexpr auto pointer_range(std::string_view s) noexcept {
  return std::tuple(s.data(), s.data() + s.size());
}

template <class CharT, class Traits>
constexpr bool starts_with(std::basic_string_view<CharT, Traits> prefix,