107 template <typename T,
109           size_t kBitWidth = BitStructSizeOf<T>(),
112   static_assert(std::is_standard_layout<T>::value, "T must be standard layout");
114   operator T() const {  in T()  function
120             typename = std::enable_if_t<std::is_same<T, StorageType>::value, _>>
125   BitStructField& operator=(T value) {
135     return *this = static_cast<T>(other);
139     Assign(*this, static_cast<T>(other));  in BitStructField()
147   T2& Assign(T2& what, T value) {  in Assign()
156   T Get() const {  in Get()
162   void Set(T value) {  in Set()
191     T value_;
205 template <typename T, size_t kBitOffset, size_t kBitWidth>
206 struct BitStructNumber : public BitStructField<T, kBitOffset, kBitWidth, /*StorageType*/T> {
207   using StorageType = T;
209   BitStructNumber& operator=(T value) {
213   /*implicit*/ operator T() const {  in T()  function
240   using BaseType = BitStructField<T, kBitOffset, kBitWidth, /*StorageType*/T>;
299 template <typename T>
301   return T::BitStructSizeOf();  in BitStructSizeOf()