Add file i/o to your programImplement a function writeEmpToFile that takes two arguments: a struct Employee pointer and a FILE *.It should write each field in order as an appropriate type. Note that you will probably want to write a length of the name before you write the characters of the name. By doing this, whenyou write the load function below, you can read the length of the string and use it to malloc a buffer of the proper size to hold the name.Because of the embedded name pointer, you CAN NOT write the Employee struct as a single struct. You will need to write it out field by field. You will want to write this as a binary file,not as a text file.Implement a SAVE command in your main loop that will save all the employees out to a file. The SAVE command should ask for a file name, similar to the way your FIND command askedfor a name.Implement a function readEmpFromFile that takes a FILE * as the only argument and returns a pointer to a struct employee. This function should read the information from the file(reversing what writeEmpToFile does), create a new employee and fill in the data. If the FILE has no more info (is at end of file), this function should return NULL. This function must alsoensure any employee actually created (not the NULL) is added to the array (as is done in createEmployee).Change main to load employees from a file if a command line argument is given to the program (using your readEmpFromFile function you just wrote).

Answered: ployee struct as a single struct. You…

Engineering

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ployee struct as a single struct. You wi employees out to a file. The SAVE com Y argument and returns a pointer to a

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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#include <iostream>#include <string>#include "hashT.h" using namespace std; class stateData{ friend ostream& operator<<(ostream&, const stateData&); // used to print state data on screen friend istream& operator>>(istream&, stateData&); // used to load data from file public: // setting values to the class object void setStateInfo(string sName, string sCapital, double stateArea, int yAdm, int oAdm); // retrieving data with call-by reference from the class object void getStateInfo(string& sName, string& sCapital, double& stateArea, int& yAdm, int& oAdm); string getStateName(); //return state name string getStateCapitalName(); //return state capital's name double getArea(); //return state's area int getYearOfAdmission();//return state's admision year int getOrderOfAdmission();//return state's order of admission //print stateName,…