What is the performance impact of exceptions in C++?

What is the performance impact of exceptions in C++?

The performance impact of exceptions in C++ can vary. Generally, throwing exceptions can be costly in terms of performance due to stack unwinding and the need to search for catch blocks.

Are there specific scenarios where exceptions are more costly?

Yes, exceptions can be particularly costly in tight loops or performance-critical code where exceptions are thrown frequently. It's often better to use error codes in such cases.

How can I minimize the performance overhead of exceptions?

To minimize overhead, you can use exception handling sparingly, avoid throwing exceptions in performance-critical paths, and consider using alternative error handling strategies.

What are the alternatives to using exceptions in C++?

Alternatives include using return codes, std::optional for functions that may fail, or even custom error handling classes that encapsulate error states.