Boost filesystem iterator

Just starting to learn boost::filesystem.

1. What is a differen开发者_开发技巧ce between directory_iterator and basic_path::iterator?
2. Do the iterators iterate files in lexicographical order?

Thanks

1. path::iterator iterates through the directory that form the path. If a path is /a/b/c/d, it will iterate over /, a, b, c and d.

   directory_iterator will instead iterate through files in a directory.

2. No, directory_iterator will not sort files, they'll be returned in the same order as your operating system calls do.