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 primary goal of the lecture on command line arguments?

• To learn about file handling in C

• To become comfortable with command line arguments and string manipulation

• To understand memory management

• To explore advanced data structures

What is the minimum number of parameters required for the program to function properly?

• One

• Two

• Three

• Four

Which function is used to convert a string to an integer in the program?

• strcpy

• sprintf

• strtol

• atoi

How does the program handle case sensitivity when comparing strings?

• By ignoring case differences

• By using a case-insensitive comparison function

• By converting all strings to uppercase

• By using a case-sensitive comparison function

What is the purpose of returning different error codes in the program?

• To enhance user interface

• To improve memory usage

• To make the program run faster

• To indicate different types of errors

What environment variable is used to check the return code of the program?

• HOME

• ERRORLEVEL

• USER

• PATH

What is the result of the average operation when the input is 'calc average 1 2 3'?

• 1.0

• 2.0

• 3.0

• 2.5