public:
// Types
- typedef std::size_t size_type;
- typedef char& reference;
- typedef const char& const_reference;
- typedef char* iterator;
- typedef const char* const_iterator;
+ using size_type = std::size_t;
+ using reference = char&;
+ using const_reference = const char&;
+ using iterator = char*;
+ using const_iterator = const char*;
// Dtor
~string()
