What are some use cases for C++ lambdas?

What are some use cases for C++ lambdas?

C++ lambdas are often used for short, inline functions. Common use cases include sorting, filtering, and event handling.

Can you give me an example of using a lambda for sorting?

Sure! You can use a lambda to sort a vector of integers like this: std::sort(vec.begin(), vec.end(), [](int a, int b) { return a < b; });.

What about using lambdas with algorithms?

Lambdas work great with STL algorithms. For example, you can use them with std::for_each to apply a function to each element in a container.

Are there any performance considerations when using lambdas?

Yes, while lambdas are generally efficient, capturing large objects by value can lead to performance overhead. It's best to capture only what's necessary.