232   i.Position  = 0;  in begin()
240   i.Position  = path.size();  in end()
245   assert(Position < Path.size() && "Tried to increment past end!");  in operator ++()
248   Position += Component.size();  in operator ++()
251   if (Position == Path.size()) {  in operator ++()
262   if (is_separator(Path[Position], S)) {  in operator ++()
267       Component = Path.substr(Position, 1);  in operator ++()
272     while (Position != Path.size() && is_separator(Path[Position], S)) {  in operator ++()
273       ++Position;  in operator ++()
277     if (Position == Path.size() && Component != "/") {  in operator ++()
278       --Position;  in operator ++()
285   size_t end_pos = Path.find_first_of(separators(S), Position);  in operator ++()
286   Component = Path.slice(Position, end_pos);  in operator ++()
292   return Path.begin() == RHS.Path.begin() && Position == RHS.Position;  in operator ==()
296   return Position - RHS.Position;  in operator -()
302   I.Position = Path.size();  in rbegin()
312   I.Position = 0;  in rend()
320   size_t end_pos = Position;  in operator ++()
326   if (Position == Path.size() && !Path.empty() &&  in operator ++()
329     --Position;  in operator ++()
337   Position = start_pos;  in operator ++()
343          Position == RHS.Position;  in operator ==()
347   return Position - RHS.Position;  in operator -()