boost::algorithm::one_of
// In header: <boost/algorithm/cxx11/one_of.hpp> template<typename InputIterator, typename Predicate> BOOST_CXX14_CONSTEXPR bool one_of(InputIterator first, InputIterator last, Predicate p);
Parameters:
first
The start of the input sequence
last
One past the end of the input sequence
p
A predicate for testing the elements of the sequence
Returns:
true if the predicate 'p' is true for exactly one item in [first, last).
