Comparing default-constructed iterators with operator==

Question

Does the C++ Standard say I should be able to compare two default-constructed STL iterators for equality? Are default-constructed iterators equality-comparable?

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Answer 1

This is going to change in C++14. [forward.iterators] 24.2.5p2 of N3936 says

However, value-initialized iterators may be compared and shall compare equal to other value-initialized iterators of the same type.