Learn and Master C Programming - Arguments of main() function - Part 2

This lecture covers the use of command line arguments in C/C++ to implement sum and average operations. The instructor demonstrates setting up a project in Visual Studio, reviewing previous work, and implementing the operations. The lecture includes error handling, string comparison, and converting strings to integers. The code is compiled, tested, and debugged, with a focus on handling errors and warnings. The lecture concludes with testing the application and checking return codes using environment variables.

What is the significance of returning error codes from the program?

How does the program calculate the average of the numbers passed as arguments?

What steps are taken if the user inputs an invalid command line argument?