Hello everybody, I know this might have been raised a few times before in this mailing list, but I'd like to know if it's possible(or otherwise what would prevent) to have sorted and randomized adaptors so that I may have a sorted and randomized view of a range respectively. Something like vector<int> x; // operations to fill x x | boost::adaptors::sorted; x | boost::adaptors::randomized;// That one might also take an optional random generator as a parameter. I understand that in this case the adaptor isn't entirely lazy as the adapted(x here) must be completely consumed before producing a single element in the resulting range. I want to know however if having such adaptors may contradict any basic principles of the existing adaptors. P.S. Two other threads I found that discussed the same idea(for sorted only): - http://lists.boost.org/Archives/boost/2009/03/149247.php - http://lists.boost.org/Archives/boost/2006/05/105122.php