// File: mystring.h
// Author: Matt Small
// Description: Header file for the MyString class, a custom class for storing and
// manipulating strings.

#include <iostream>
using namespace std;

class MyString
{
   friend ostream& operator<< (ostream&, const MyString&);
   friend istream& operator>> (istream&, MyString&);

   friend MyString operator+ (const MyString&, const MyString&);
   friend bool operator<  (const MyString&, const MyString&);
   friend bool operator>  (const MyString&, const MyString&);
   friend bool operator<= (const MyString&, const MyString&);
   friend bool operator>= (const MyString&, const MyString&);
   friend bool operator== (const MyString&, const MyString&);
   friend bool operator!= (const MyString&, const MyString&);

public:
   MyString();                  // default constructor
   MyString(const char*);       // conversion constructor
   MyString(const MyString&);   // copy constructor
   ~MyString();                 // destructor
	

   const MyString& operator=(const MyString&);  // assignment overload
   const MyString& operator+=(const MyString&); // assignment + overload
   char operator[] (int index) const;           //const safe [] overload 
   char& operator[](int index);                 //non-const [] overload
   
   char* cstring();             // returns char* pointer str 
   int GetLength() const;       // accessor for length

private:
   void Resize(int);            // resize the allocation to allow a string of
		                // size (int param) n, meaning allocation n+1

   char* str;                   // pointer to dynamically created char array
				// that stores the c-string
   int length;                  // number of readable characters in the stored string
				// ALLOCATED space is always to be length+1 (length plus NULL)
};