#include <cstdint>

template <class... Ts>
class type_list
{
private:
  template <class U, class V, class... Vs>
  struct type_id {
    static constexpr int id() {
      static_assert(sizeof...(Vs) != 0, "type not registered");
      return type_id<U, Vs...>::id();
    }
  };

  template <class U, class... Vs>
  struct type_id<U, U, Vs...> {
    static constexpr int id() {
      return sizeof...(Vs);
    }
  };

public:
  template <class U>
  static constexpr int id() {
    return type_id<U, Ts...>::id();
  }
};

// Register types here
using Types = type_list<int16_t, uint32_t>;

struct ElementInfo
{
  const char* name;
  const int offset;
  const int type;
};

constexpr ElementInfo info[] = {
  { "foo",    1, Types::id<uint32_t>() },
  { "bar",    2, Types::id<int16_t>() },
};

int main() {
}