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

Computer Science

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

See similar textbooks

Similar questions

main.cc file #include <iostream> int main() { // =================== YOUR CODE HERE =================== // 1. Create a vector Pet objects called `pets`. // Don't forget to #include <vector> and "pet.h" // ====================================================== std::string name; std::string breed_name; std::string species; std::string color; double weight = 0.0; do { std::cout << "Please enter the pet's name (q to quit): "; std::getline(std::cin, name); if (name != "q") { std::cout << "Please enter the pet's species: "; std::getline(std::cin, species); std::cout << "Please enter the pet's breed: "; std::getline(std::cin, breed_name); std::cout << "Please enter the pet's color: "; std::getline(std::cin, color); std::cout << "Please enter the pet's weight (lbs): "; std::cin >> weight; std::cin.ignore(); // =================== YOUR CODE HERE =================== //…
A for construct is a loop construct that processes a specified list of objects. As a result,it is executed as long as there are remaining objects to process. True or False?
Fill-in-the-Blank __________ are pointer-like objects used to access information stored in a container.
Assignment Submission Instructions:This is an individual assignment – no group submissions are allowed. Submit a script file that contains the SELECT statements by assigned date. The outline of the script file lists as follows:/* ******************************************************************************** * Name: YourNameGoesHere * * Class: CST 235 * * Section: * * Date: * * I have not received or given help on this assignment: YourName * ***********************************************************************************/USE RetailDB;####### Tasks: Write SQL Queries ######### -- Task 1 (Customer Information):-- List your SELECT statement below. Make sure the SQL script file can be run successfully in MySQL and show the outcome of the code on MySQL
C++ Add a search command that asks the user for a string and finds the first line that contains that string. The search starts at the first line currently displayed and stops at the end of the file. If the string is found, the line that contains it is displayed at the top. In case the user enters a string X that does not occur in the file, the program should print the error message: ERROR: string "X" was not found. Attached is the first lines of the .txt file
The program will consist of two files Program.cs - the main application file; name the class appropriately Unique.cs - class for retrieving the unique values from the user The Unique class provides the following: Constructor Private member variable to store 5 unique values (hint: use an Array or a List) Public function to get 5 unique values from the user and store them in the member variable loop to get the numbers, if a number is already stored, ignore it and keep looping until you have 5 unique numbers if a number is out of range, don't store the value, throw an exception and handle it in such a way that you don't break the loop but do message the user that the value was out of range Public functions to return the following based on the stored values: Largest number Smallest number Sum of all numbers Average of the numbers entered Last number entered divided by the first number entered The main application does the following Creates an instance of the Unique class Calls…
C++ Add a search command that asks the user for a string and finds the first line that contains that string. The search starts at the first line currently displayed and stops at the end of the file. If the string is found, the line that contains it is displayed at the top. In case the user enters a string X that does not occur in the file, the program should print the error message: ERROR: string "X" was not found.
Open the project or solution named mpg in this folder: ex_starts\ch07_ex1_mpg Review the code and run the program to refresh your memory on how it works. Notice that, unlike the program in this chapter, this program lets the user perform more than one calculation, it stores the values the user enters in a text file, and it displays the total miles, total gallons, and average miles per gallon when the program starts and after each entry. Add a function that calculates the miles per gallon Define a function named calculate_mpg() before the main() function that calculates the miles per gallon. This function should accept two double values for the miles and gallons, round the result to two decimal places, and return the result as a double type. Modify the code in the main() function so it uses the calculate_mpg() function. Note that the miles per gallon is calculated in three different places. Move the definition for the calculate_mpg() function after the main() function. When you run…
5. Charge Account Validation If you have downloaded the source code from the Computer Science Portal you will find a file named charge_accounts.txt in the Chapter 07 folder. This file has a list of a com- pany's valid charge account numbers. Each account number is a seven-digit number, such as 5658845. Programming Exercises 403 program Write a program that reads the contents of the file into a list. The program should then ask the user to enter a charge account number. The program should determine whether the number is valid by searching for it in the list. If the number is in the list, the should display a message indicating the number is valid. If the number is not in the list, the program should display a message indicating the number is invalid. (You can access the
Fill-in-the-Blank You should only use the delete operator to deallocate memory that was dynamically acquired with the __________ operator.
Java Programing Joyce Farrell 13-8 Create an application named StudentsStanding.java that allows you to enter student data that consists of an ID number, first name, last name, and grade point average. Have the program accept input until ZZZ is entered for the ID number. Depending on whether the student’s grade point average is at least 2.0, output each record either to a file of students in good standing (StudentsGoodStanding.txt) or those on academic probation (StudentsAcademicProbation.txt). Create an application named StudentsStanding2.java that displays each record in the two files created in the StudentsStanding application. Display a heading to introduce the list produced from each file. For each record, display the ID number, first name, last name, grade point average, and the amount by which the grade point average exceeds or falls short of the 2.0 cutoff. For example, the output should be formatted as follows (note that the student info may vary): Probationary Standing…
For a local variable in a function to retain its value between calls to the function, it must be declared with the _____________storage-class specifier.