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DeadXorAlive

Iterator to reverse_iterator?

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From the stl, is it possible to get a reverse_iterator from a regular iterator? Couldn't find anything mentioning this, I would guess not but I'm not sure.

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Quote:
Original post by DeadXorAlive
From the stl, is it possible to get a reverse_iterator from a regular iterator? Couldn't find anything mentioning this, I would guess not but I'm not sure.

Reverse iterators have an explicit conversion from regular iterators. The semantics are defined as follows:
&*(reverse_iterator(i)) == &*(i - 1).


CM

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int main()
{
std::vector<int> v;
std::vector<int>::iterator e = v.end();
std::vector<int>::reverse_iterator f(e);
}

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Ah thanks a bunch, that's simple. Is the reverse also possible? Thank you. I'm still trying to grok iterator_traits and all that, there's much more goodness to it all than I thought.

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