How do C++ lambdas affect performance?

How do C++ lambdas affect performance compared to regular functions?

C++ lambdas can improve performance by reducing function call overhead and enabling inlining, especially in STL algorithms.

Are there any scenarios where using lambdas might degrade performance?

Yes, using lambdas can degrade performance if they capture large objects by value, leading to unnecessary copies.

What are the best practices for using lambdas in performance-critical code?

Best practices include minimizing captures, using move semantics, and ensuring that lambdas are small and simple.

Can you give an example of a lambda that improves performance in a loop?

Sure! Using a lambda with std::for_each can eliminate the need for a separate function, reducing overhead.