How can I handle errors in my C functions?

How can I handle errors in my C functions?

You can handle errors in C functions by using return values, error codes, or by implementing error handling mechanisms like errno.

Can you give me an example of using return values for error handling?

Sure! You can return a negative value to indicate an error. For example, if a function fails, it can return -1.

What about using errno? How does that work?

Errno is a global variable that gets set when a function fails. You can check its value to determine the type of error that occurred.

Are there any best practices for error handling in C?

Yes, always check return values, use meaningful error codes, and document your error handling strategy for maintainability.