What are the best practices for handling exceptions in C++?

What are the best practices for handling exceptions in C++?

In C++, best practices for exception handling include using try-catch blocks, throwing exceptions by value, and ensuring that exceptions are derived from std::exception.

Can you explain why it's important to derive from std::exception?

Deriving from std::exception allows you to leverage polymorphism, enabling catch blocks to handle different exception types uniformly.

What about performance considerations when using exceptions?

Performance can be impacted by exceptions, especially if they are used for control flow. It's best to use them for exceptional cases only.

Are there any specific guidelines for resource management during exceptions?

Yes, use RAII (Resource Acquisition Is Initialization) to manage resources automatically, ensuring they are released even if an exception occurs.