//
//	simplified version of the class string
//	matching the specifications of the standard library
//	written by Tim Budd, 1997
//

class string {
public:
	typedef char * iterator; // define iterator type

	string 	();		// constructors
	string 	(char *);
	string 	(string &);
	~string	();	// destructor

		// member functions
	iterator  begin		();
	bool  	empty		();
	iterator  end  		();
	int   	find 		(string &, unsigned int);
	int   	find_first_of    	(string &, unsigned int);
	int   	find_first_not_of	(string &, unsigned int);
	void  	insert 		(unsigned int, string &);
	int   	length 		();
	string	substr 		(unsigned int, unsigned int);
	void  	remove 		(unsigned int, unsigned int);
	void  	replace		(unsigned int, unsigned int, string &);
	void  	resize 		(unsigned int, char);

		// operators
	char &	operator [ ] 	(unsigned int);
	void  	operator =   	(string &);
	void  	operator +=  	(string &);
		
		// friends
	friend bool operator == (string &, string &);
	friend bool operator != (string &, string &);
	friend bool operator <  (string &, string &);
	friend bool operator <= (string &, string &);
	friend bool operator >  (string &, string &);
	friend bool operator >= (string &, string &);

protected:	// data areas
	char *			buffer;	// pointer to dynamic buffer
	unsigned short int	bufferLength; // length of dynamic buffer
};