32         : container_(container), pos_(0)  in container_source()
38             static_cast<std::streamsize>(container_.size() - pos_);  in read()
41             std::copy( container_.begin() + pos_,  in read()
42                        container_.begin() + pos_ + result,  in read()
44             pos_ += result;  in read()
55     size_type   pos_;  member in boost::iostreams::example::container_source
88         : container_(container), pos_(0)  in container_device()
95             static_cast<std::streamsize>(container_.size() - pos_);  in read()
98             std::copy( container_.begin() + pos_,  in read()
99                        container_.begin() + pos_ + result,  in read()
101             pos_ += result;  in read()
111         if (pos_ != container_.size()) {  in write()
113                 static_cast<std::streamsize>(container_.size() - pos_);  in write()
115             std::copy(s, s + result, container_.begin() + pos_);  in write()
116             pos_ += result;  in write()
120             pos_ = container_.size();  in write()
133             next = pos_ + off;  in seek()
144         pos_ = next;  in seek()
145         return pos_;  in seek()
153     size_type   pos_;  member in boost::iostreams::example::container_device