What are the best practices for using try-catch in C++?

What are the best practices for using try-catch in C++?

When using try-catch in C++, it's important to catch exceptions by reference, avoid empty catch blocks, and use specific exception types.

Why should I catch exceptions by reference?

Catching exceptions by reference avoids slicing, which can lead to loss of information about the exception type.

What should I do instead of using empty catch blocks?

Instead of empty catch blocks, log the error or rethrow the exception to ensure that issues are not silently ignored.

Can you give an example of a good try-catch implementation?

Sure! Here's a simple example:

try {
    // code that may throw
} catch (const std::exception& e) {
    std::cerr << "Error: " << e.what() << std::endl;
}