#ifndef DYNSTRINGARRAY_H
#define DYNSTRINGARRAY_H

//*****************************************************************************
//
//			DynSTringArray.h
//
//*****************************************************************************
//
//      Copyright (C) 1996 
//
//                      Ronald A. MacCracken
//			Graduate Student
//                      Computer Science Department
//                      University of California
//                      Davis, CA  95616
//
//      Permission is granted to use at your own risk and 
//      distribute this software in source and binary forms 
//      provided the above copyright notice and this paragraph 
//      are preserved on all copies.  This software is provided 
//      "as is" with no express or implied warranty.
//
//*****************************************************************************

#include <iostream.h>
#include "STring.h"


class DynSTringArray 
{

private:

    int			_chunk ;
    int			_allocated ;

    int 		_length ;  
    STring*		_array ;


private:

    void		Copy   ( const DynSTringArray& ) ;
    void		Delete ( void ) ;


protected:

    void		Output ( ostream& ) const ;
    void		Input  ( istream& ) ;


public: 

			// default constructor

			DynSTringArray ( void ) ;


			// user-defined constructors

			DynSTringArray ( const int& chunk ) ;

			DynSTringArray ( const int& length ,
					 const STring& data , 
					 const int& chunk = 10 ) ;

			DynSTringArray ( const int& length ,
					 const STring* new_array ,
					 const int& chunk = 10 ) ;


			// copy constructor

			DynSTringArray ( const DynSTringArray& ) ;


			// destructor

			~DynSTringArray ( void ) ;


			// assignment operators

    DynSTringArray& 	operator= ( const DynSTringArray& ) ;


			// index operators

    STring&		operator[] ( const int& i ) ;
    const STring&	operator[] ( const int& i ) const ;


			// access functions

    int 		Get_Length ( void ) const	{ return _length ; }


			// add element or array

    void		Add ( const STring& data ) ;
    void		Add ( const DynSTringArray& a ) ;


			// remove element i from  array

    void		Remove ( const int& i ) ;


			// set all elements to data

    void		Set_All ( const STring& data ) ;


			// swap element i with element j

    void		Swap ( const int& i , const int& j ) ;


			// I/O operators

    friend ostream& 	operator<< ( ostream& , const DynSTringArray& ) ;
    friend istream& 	operator>> ( istream& , DynSTringArray& ) ;

} ;

#endif