231   i.Position  = 0;  in begin()
239   i.Position  = path.size();  in end()
244   assert(Position < Path.size() && "Tried to increment past end!");  in operator ++()
247   Position += Component.size();  in operator ++()
250   if (Position == Path.size()) {  in operator ++()
261   if (is_separator(Path[Position], S)) {  in operator ++()
266       Component = Path.substr(Position, 1);  in operator ++()
271     while (Position != Path.size() && is_separator(Path[Position], S)) {  in operator ++()
272       ++Position;  in operator ++()
276     if (Position == Path.size() && Component != "/") {  in operator ++()
277       --Position;  in operator ++()
284   size_t end_pos = Path.find_first_of(separators(S), Position);  in operator ++()
285   Component = Path.slice(Position, end_pos);  in operator ++()
291   return Path.begin() == RHS.Path.begin() && Position == RHS.Position;  in operator ==()
295   return Position - RHS.Position;  in operator -()
301   I.Position = Path.size();  in rbegin()
311   I.Position = 0;  in rend()
319   size_t end_pos = Position;  in operator ++()
325   if (Position == Path.size() && !Path.empty() &&  in operator ++()
328     --Position;  in operator ++()
336   Position = start_pos;  in operator ++()
342          Position == RHS.Position;  in operator ==()
346   return Position - RHS.Position;  in operator -()