Neatest way to loop over a range of integers

Question

Since C++11 introduced the range-based for loop (range-based for in c++11), what is the neatest way to express looping over a range of integers?

Instead of

Answer 1

While its not provided by C++11, you can write your own view or use the one from boost:

#include 
#include 

int main(int argc, char **argv)
{
    for (auto i : boost::irange(1, 10))
        std::cout << i << "\n";
}

Moreover, Boost.Range contains a few more interesting ranges which you could find pretty useful combined with the new for loop. For example, you can get a reversed view.