template <class Fn, class T>
binder2nd<Fn> bind2nd(const Fn& op, const T& x);
Returns: binder2nd<Fn>(op, typename Fn::second_argument_type(x)).
[ Example:
find_if(v.begin(), v.end(), bind2nd(greater<int>(), 5));
finds the first integer in vector v greater than 5;
find_if(v.begin(), v.end(), bind1st(greater<int>(), 5));
finds the first integer in v less than 5. — end example ]