32 inline string operator+(const string &, const string &);
33 inline string operator+(const string &, const char *);
34 inline string operator+(const char *, const string &);
35 inline string operator+(const string &, char);
36 inline string operator+(char, const string &);
37 inline int operator==(const string &, const string &);
38 inline int operator!=(const string &, const string &);
50   string &operator=(const string &);  variable
51   string &operator=(const char *);  variable
52   string &operator=(char);  variable
54   string &operator+=(const string &);
55   string &operator+=(const char *);
56   string &operator+=(char);
61   int operator*() const;
65   char &operator[](int);
66   char operator[](int) const;
76   friend string operator+(const string &, const string &);
77   friend string operator+(const string &, const char *);
78   friend string operator+(const char *, const string &);
79   friend string operator+(const string &, char);
80   friend string operator+(char, const string &);
82   friend int operator==(const string &, const string &);
83   friend int operator!=(const string &, const string &);
84   friend int operator<=(const string &, const string &);
85   friend int operator<(const string &, const string &);
86   friend int operator>=(const string &, const string &);
87   friend int operator>(const string &, const string &);
99 inline char &string::operator[](int i)
105 inline char string::operator[](int i) const
121 inline int string::operator*() const
131 inline string operator+(const string &s1, const string &s2)
136 inline string operator+(const string &s1, const char *s2)
148 inline string operator+(const char *s1, const string &s2)
160 inline string operator+(const string &s, char c)
165 inline string operator+(char c, const string &s)
170 inline int operator==(const string &s1, const string &s2)
176 inline int operator!=(const string &s1, const string &s2)
188 inline string &string::operator+=(char c)