text: #ifndef __STR_H__
  #define __STR_H__
  
  #include "BankingCommonDecl.h"
  
  class Str {
  private:
  	int len;
  	char * str;
  
  public:
  	Str();
  	Str(const char * st);
  	Str(const Str& ref);
  	~Str();
  	Str& operator= (const Str& st);
  	Str& operator+ (const Str& st);
  	Str& operator+= (const Str& str);
  	bool operator== (const Str& str1);
  
  	friend std::ostream& operator<< (std::ostream& os, const Str& st);
  	friend std::istream& operator>> (std::istream& is, Str& st);
  
  };
  
  
  
  
  
  #endif