C++ Error Codes vs Exceptions: Performance

What are the main differences between error codes and exceptions in C++?

Error codes are return values indicating success or failure, while exceptions are objects thrown to signal errors.

Which method is more performant in C++?

Error codes are generally more performant since they avoid the overhead of stack unwinding associated with exceptions.

Are there situations where exceptions are preferred?

Yes, exceptions are preferred for handling unexpected errors and maintaining cleaner code by separating error handling from logic.

Can you give an example of using error codes?

Sure! A function might return -1 for an error, and the caller checks the return value to determine if an error occurred.