Hi all!
I'd like to know if C++ STL has a way to count elements in a certain range from a set. I tried using lower_bound/upper_bound, but I couldn't subtract a set<int>::iterator from another.
Another way is via std::count_if and boost::lambda (the boost::lambda just allows me to do this with one line of code instead of writing a function object):
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cout << std::count_if( s.begin(), s.end(),
boost::lambda::_1 >= MIN && boost::lambda::_1 <= MAX );
Man, I've got to learn boost::lambda...I read through some of the information at boost.org, but I still haven't actually used it in my own code for anything... Is that the same one that has the bind stuff?
Set iterator difference