What are the new features of C++11 iterators?

Can you explain the new features of C++11 iterators?

Sure! C++11 introduced several enhancements to standard iterators, including the addition of new iterator types like 'std::begin' and 'std::end'.

What are 'std::begin' and 'std::end' used for?

They provide a way to obtain iterators for containers, making it easier to work with ranges in algorithms.

Are there any performance improvements with these new iterators?

Yes, the new iterators can lead to better performance by allowing more efficient range-based for loops and algorithm usage.

Can you give an example of using a range-based for loop with these iterators?

Certainly! Here's a simple example:

std::vector<int> vec = {1, 2, 3, 4};
for (auto& val : vec) {
    std::cout << val << ' ';
}
``` This uses 'std::begin' and 'std::end' implicitly.