...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::unit_test::find_first_not_of — this algorithm search through first collection for first element that does not belong a second one
// In header: <boost/test/utils/algorithm.hpp> template<typename ForwardIterator1, typename ForwardIterator2> ForwardIterator1 find_first_not_of(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2);