I'm trying to get a C++ program to include Boost, and I've tried such statements as
# include <boost> or

#include <boost/config.hpp> and so on, and also

using namespace boost;

But all of them give an error message saying something to the effect of:

Cannot open include file: 'boost': No such file or directory (or say that the namespace doesn't exist if I try that way.  Could anyone please give me some help with this.