function pointer template

template.cpp

	template<const std::vector<std::string> (*function)(const std::string&)> luabind::object StringVectorAsTable(const std::string& argument, lua_State* L)
	{
		luabind::object result = luabind::newtable(L);
		std::vector<std::string> vec = function(argument);
		std::vector<std::string>::iterator end = vec.end();
		unsigned int index = 0;
		for(std::vector<std::string>::iterator it = vec.begin(); it != end; ++it)
		{
			result[++index] = *it;
		}
		return result;
	}

...

            luabind::def("GetFilesInDirectory", &StringVectorAsTable<Helpers::GetFilesInDirectory>),
            luabind::def("GetDirectoriesInDirectory", &StringVectorAsTable<Helpers::GetDirectoriesInDirectory>),