Function BitSizeOf

Bcore/src/main/cpp/base/bit_utils.h:31–37

// Like sizeof, but count how many bits a type takes. Pass type explicitly.
template <typename T>
constexpr size_t BitSizeOf() {
  static_assert(std::is_integral<T>::value, "T must be integral");
  using unsigned_type = typename std::make_unsigned<T>::type;
  static_assert(sizeof(T) == sizeof(unsigned_type), "Unexpected type size mismatch!");
  static_assert(std::numeric_limits<unsigned_type>::radix == 2, "Unexpected radix!");
  return std::numeric_limits<unsigned_type>::digits;
}

// Like sizeof, but count how many bits a type takes. Infers type from parameter.
template <typename T>