| 41 | **/ |
| 42 | |
| 43 | class cString |
| 44 | { |
| 45 | protected: |
| 46 | inline void CopyOnWrite(); |
| 47 | |
| 48 | // -- Contained Classes -- |
| 49 | private: |
| 50 | // Declarations (only needed) |
| 51 | class cStringData; |
| 52 | |
| 53 | // cCharProxy -- To detect rvalue vs lvalue --------------------- |
| 54 | class cCharProxy |
| 55 | { |
| 56 | private: |
| 57 | cString& string; |
| 58 | int index; |
| 59 | |
| 60 | public: |
| 61 | cCharProxy(cString& _string, int _index) : string(_string), index(_index) { ; } |
| 62 | |
| 63 | inline cCharProxy& operator=(char c); // lvalue |
| 64 | inline cCharProxy& operator+=(char c); // lvalue |
| 65 | inline cCharProxy& operator-=(char c); // lvalue |
| 66 | inline cCharProxy& operator++(); // lvalue (prefix) |
| 67 | inline char operator++(int dummy); // lvalue (postfix) |
| 68 | inline cCharProxy& operator--(); // lvalue (prefix) |
| 69 | inline char operator--(int dummy); // lvalue (postfix) |
| 70 | inline operator char () const; // rvalue |
| 71 | }; |
| 72 | friend class cCharProxy; // Telling rvalue vs lvalue .... |
| 73 | |
| 74 | // cStringData -- Holds the actual data and is reference count -- |
| 75 | class cStringData : public Apto::RefCountObject<Apto::ThreadSafe> |
| 76 | { |
| 77 | // NOTE: Terminating NULL is always there (you can't assign!!) |
| 78 | private: |
| 79 | int m_size; // size of data (NOT INCLUDING TRAILING NULL) |
| 80 | char* m_data; |
| 81 | |
| 82 | cStringData(); // @not_implemented |
| 83 | |
| 84 | public: |
| 85 | explicit cStringData(int in_size); |
| 86 | cStringData(int in_size, const char* in); |
| 87 | cStringData(const cStringData& in); |
| 88 | |
| 89 | ~cStringData() |
| 90 | { |
| 91 | delete [] m_data; |
| 92 | } |
| 93 | |
| 94 | cStringData& operator=(const cStringData& in) |
| 95 | { |
| 96 | delete [] m_data; |
| 97 | m_size = in.GetSize(); |
| 98 | m_data = new char [m_size + 1]; |
| 99 | assert(m_data != NULL); // Memory Allocation Error: Out of Memory |
| 100 | for(int i = 0; i < m_size; ++i) m_data[i] = in[i]; |