C++ iterators & loop optimization

Question

I see a lot of c++ code that looks like this:

for( const_iterator it = list.begin(),
     const_iterator ite = list.end();
     it != ite; ++it)

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Answer 1

You can make the first version more concise and get the best of both:

for( const_iterator it = list.begin(), ite = list.end();
     it != ite; ++it)

P.S. The iterators aren't const, they're iterators to a const reference. There's a big difference.