str.h

c++书籍的源代码

//str.h
#ifndef STR_H
#define STR_H
 class str
{
 public:
  str(char *p="");
  str(str&);
  ~str();
  str& operator =(str s1);
  str operator +(str& s1);
  int operator ==(str& s1);
  char operator [](int i);
  friend ostream& operator <<(ostream&,const str&);
 private:
  char *s;
  int len;
};
#endif