...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::algorithm::find_if_not — Finds the first element in the sequence that does not satisfy the predicate.
// In header: <boost/algorithm/cxx11/find_if_not.hpp> template<typename Range, typename Predicate> BOOST_CXX14_CONSTEXPR boost::range_iterator< const Range >::type find_if_not(const Range & r, Predicate p);