Homework Help is Here – Start Your Trial Now!
Engineering
Computer Engineering
Add file i/o to your program Implement 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, when you 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 asked for 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 also ensure 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).

Add file i/o to your program Implement 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, when you 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 asked for 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 also ensure 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).

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
See similar textbooks
icon
Related questions
Question

I need help implementing this Add file i/o to my program

 

Any  help and or assistance would be appreciated I've already tried a bunch of stuff but I am very confused 

The code had too many characters so I have a link so that you fork it to continue to work on the code 

https://onlinegdb.com/I_L8bKAlb

Add file i/o to your program Implement 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, when you 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 asked for 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 also ensure 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).
Transcribed Image Text:Add file i/o to your program Implement 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, when you 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 asked for 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 also ensure 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).
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY
SEE MORE TEXTBOOKS