string.h

#pragma once

#include <iostream>
#include "object.h"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

// A String is an Object
class String: public Object {
    public:
        const char* value_;
        int size_;
        size_t hash_code;

        // Constructor
        // hash code will be initialized to 0
        // the given char* will be contrcted into String
        String(const char* value) : Object() {
            value_ = value;
            size_ = strlen(value);
            hash_code = 0;
            hash();
        }
        ~String() {
            delete [] value_;
        }

        //Return the size of the String
        virtual size_t get_size();

        // Check if this String is equal to given String.
        // Gievn String is an object
        virtual bool equals(Object *object);

        //Concatinate given String to this String.
        // This String will be in the front
        String* concat(String *o);

        // Return field hash_code if hash code is not zero.
        // Otherwise go to hash_me function.
        virtual size_t hash();

        // Make hash code a valid hash code
        virtual void hash_me();

        // Return char pointer value_
        virtual const char* getValue();

};