What are SCARY iterators?

Question

I'm reading the VC11 Blog on VC11's C++11 features when I've come up to the SCARY iterators topic.

What are SCARY iterators and how does this affect my C++ coding experience?

Answer 1

If you're using them, there's no need to get SCAREd... just ignore their SCARY-ness.

If you're making them, that means you have to make your iterators independent of the container's allocator type, and of other generic parameters to the container that don't affect the iterators.