#include <iostream>
#include <string>
#include <vector>
#include <boost/bind.hpp>

using namespace ::std;
using namespace ::boost;

class X
{
public:
	typedef vector<string> StringList;

	// StringProcessingFunctor takes a single parameter of type
	// "const string&" and returns "void".
	template<typename StringProcessingFunctor>
	void enumerateStrings(StringProcessingFunctor functor) const
		{
			string s1("xyzzy1");
			functor(s1);
			string s2("xyzzy2");
			functor(s2);
			string s3("xyzzy3");
			functor(s3);
		}

private:
};

int main()
{
	X x;
	X::StringList strList;
	x.enumerateStrings(::boost::bind(&X::StringList::push_back, &strList, _1));

	for (X::StringList::const_iterator it = strList.begin(); it != strList.end(); ++it)
	{
		cout << *it << endl;
	}

	return 0;
}