< cpp‎ | experimental‎ | fs
Defined in header <experimental/filesystem>
class directory_iterator;
(filesystem TS)

directory_iterator is a LegacyInputIterator that iterates over the directory_entry elements of a directory (but does not visit the subdirectories). The iteration order is unspecified, except that each directory entry is visited only once. The special pathnames dot and dot-dot are skipped.

If the directory_iterator is advanced past the last directory entry, it becomes equal to the default-constructed iterator, also known as the end iterator. Two end iterators are always equal, dereferencing or incrementing the end iterator is undefined behavior.

If a file or a directory is deleted or added to the directory tree after the directory iterator has been created, it is unspecified whether the change would be observed through the iterator.


[edit] Member types

Member type Definition
value_type filesystem::directory_entry
difference_type std::ptrdiff_t
pointer const filesystem::directory_entry*
reference const filesystem::directory_entry&
iterator_category std::input_iterator_tag

[edit] Member functions

constructs a directory iterator
(public member function) [edit]
default destructor
(public member function) [edit]
assigns contents
(public member function) [edit]
accesses the pointed-to entry
(public member function) [edit]
advances to the next entry
(public member function) [edit]

[edit] Non-member functions

range-based for loop support
(function) [edit]

Additionally, operator== and operator!= are provided, either as members or as non-members, as required by LegacyInputIterator.

[edit] Example

#include <experimental/filesystem>
#include <fstream>
#include <iostream>
namespace fs = std::experimental::filesystem;
int main()
    for (const fs::directory_entry& entry : fs::directory_iterator{"sandbox"})
        std::cout << entry << '\n';

Possible output:


[edit] See also

an iterator to the contents of a directory and its subdirectories
(class) [edit]
options for iterating directory contents
(enum) [edit]
a directory entry
(class) [edit]