What are some advanced techniques for using iterators in C++11?

What are some advanced techniques for using iterators in C++11?

In C++11, you can use range-based for loops, lambda expressions, and the new standard algorithms to enhance iterator usage.

Can you explain how range-based for loops work?

Sure! Range-based for loops allow you to iterate over elements in a container without explicitly using iterators. For example: for (auto& element : container) { /* use element */ }.

What about using lambda expressions with iterators?

Lambda expressions can be used with algorithms like std::for_each to apply a function to each element in a range. For instance: std::for_each(container.begin(), container.end(), [](int& n) { n *= 2; });.

Are there any performance considerations I should be aware of?

Yes, using iterators and algorithms can sometimes introduce overhead, but they often lead to more readable and maintainable code. Always profile if performance is critical.