#ifndef STRING_H
#define STRING_H

#include  <iostream.h>
#include<string.h>
#include<stdio.h>
#include<conio.h>
//#include "block.h"
class string /*:public block*/{
 protected:
   char *st;
   int len;
public:
  string(){len=strlen(""); st=new char[len+1]; strcpy (st,"");}
  string(char *str);
  ~string(){ delete [len+1]st; }
  void   change(char *str);
  char&  getch(int x) { return st[x-1];  }    // same as operator []
  char&  operator[](int i);
  char*  getst()       {char* p; p=st; return p;       }
  void   show();
  char*  strcats(char* p);
  friend void strcopy(string& dest,string& src );
  friend ostream& operator<<(ostream& out,const string& s)
  { return  out<<(char*)s.st; }
  friend istream& operator>>(istream& in, string& s);
  string& operator=(const string& rhs);
  string& operator+=(const string& rhs);
  string operator+(const string& rhs);
};
#endif