| 43 | /// Used to represent fixed-sized data types that don't have a natural |
| 44 | /// C++ representation as an array of bytes. |
| 45 | template <size_t N> class byte_array : private internal::comparable<byte_array<N> > { |
| 46 | public: |
| 47 | /// @name Sequence container typedefs |
| 48 | /// @{ |
| 49 | typedef uint8_t value_type; |
| 50 | typedef value_type* pointer; |
| 51 | typedef const value_type* const_pointer; |
| 52 | typedef value_type& reference; |
| 53 | typedef const value_type& const_reference; |
| 54 | typedef value_type* iterator; |
| 55 | typedef const value_type* const_iterator; |
| 56 | typedef std::size_t size_type; |
| 57 | typedef std::ptrdiff_t difference_type; |
| 58 | typedef std::reverse_iterator<iterator> reverse_iterator; |
| 59 | typedef std::reverse_iterator<const_iterator> const_reverse_iterator; |
| 60 | /// @} |
| 61 | |
| 62 | /// Zero-initialized byte array |
| 63 | byte_array() { std::fill(bytes_, bytes_+N, '\0'); } |
| 64 | |
| 65 | /// Size of the array |
| 66 | static size_t size() { return N; } |
| 67 | |
| 68 | /// @name Array operators |
| 69 | /// @{ |
| 70 | value_type* begin() { return bytes_; } |
| 71 | value_type* end() { return bytes_+N; } |
| 72 | value_type& operator[](size_t i) { return bytes_[i]; } |
| 73 | |
| 74 | const value_type* begin() const { return bytes_; } |
| 75 | const value_type* end() const { return bytes_+N; } |
| 76 | const value_type& operator[](size_t i) const { return bytes_[i]; } |
| 77 | /// @} |
| 78 | |
| 79 | /// @name Comparison operators |
| 80 | /// @{ |
| 81 | friend bool operator==(const byte_array& x, const byte_array& y) { |
| 82 | return std::equal(x.begin(), x.end(), y.begin()); |
| 83 | } |
| 84 | |
| 85 | friend bool operator<(const byte_array& x, const byte_array& y) { |
| 86 | return std::lexicographical_compare(x.begin(), x.end(), y.begin(), y.end()); |
| 87 | } |
| 88 | /// @} |
| 89 | |
| 90 | /// Print byte array in hex |
| 91 | friend std::ostream& operator<<(std::ostream& o, const byte_array& b) { |
| 92 | internal::print_hex(o, b.begin(), b.size()); |
| 93 | return o; |
| 94 | } |
| 95 | |
| 96 | private: |
| 97 | value_type bytes_[N]; |
| 98 | }; |
| 99 | |
| 100 | } // proton |
| 101 | |