Zero value in `is_flags` enum. about magic_enum HOT 1 OPEN

template <auto Start, auto End, auto Inc, class F>
constexpr void constexpr_for(F&& f)
{
   if constexpr (Start < End)
   {
      f(std::integral_constant<decltype(Start), Start>());
      constexpr_for<Start + Inc, End, Inc>(f);
   }
}

enum APLHABITS
{
   NONE = 0,
   A = 0x0001,
   B = 0x0002,
   C = 0x0004,
   D = 0x0008,
   E = 0x0010,
   F = 0x0020,
   G = 0x0040,
   H = 0x0080,
   I = 0x0100,
   J = 0x0200,
// K = 0x0300, // ignore this one, it's a typo
   L = 0x0400,
   M = 0x0800,
   N = 0x1000,
   O = 0x2000,
   P = 0x4000,
   Q = 0x8000
};

template <>
struct magic_enum::customize::enum_range<APLHABITS> {
   static constexpr bool is_flags = true;
};

void myfunc()
{
   constexpr std::size_t count = magic_enum::enum_count<APLHABITS>();
   printf("%ld ", count);
   constexpr auto names = magic_enum::enum_names<APLHABITS>();
   constexpr_for<0, count, 1>([&](auto i)
   {
      printf("%s:%d ", names[i].data(), magic_enum::enum_value<APLHABITS, i>());
   });
}