std::experimental::filesystem::recursive_directory_iterator::disable_recursion_pending (3) Linux Manual Page

std::experimental::filesystem::recursive_directory_iterator::disable_recursion_pending – std::experimental::filesystem::recursive_directory_iterator::disable_recursion_pending

Synopsis

void disable_recursion_pending();
(filesystem TS)

Disables recursion to the currently referred subdirectory, if any.
The call modifies the pending recursion flag on the iterator in such a way that the next time increment is called, the iterator will advance within the current directly even if it is currently referring to a subdirectory that hasn’t been visited.
The status of the pending recursion flag can be queried with recursion_pending(), which is false after this call. It is reset back to true after increment, and its initial value is also true.
The behavior is undefined if *this is the end iterator.

Parameters

(none)

Return value

(none)

Exceptions

(none)

Example

// Run this code

#include <fstream>

#include <iostream>

#include <string>

#include <experimental/filesystem>

namespace fs = std::experimental::filesystem;
int main()

{
    fs::create_directories("sandbox/a/b/c");
    fs::create_directories("sandbox/a/b/d/e");
    std::ofstream("sandbox/a/b/file1.txt");
    fs::create_symlink("a", "sandbox/syma");
    for (auto i = fs::recursive_directory_iterator("sandbox");
         i != fs::recursive_directory_iterator();
         ++i) {
        std::cout << std::string(i.depth(), ' ') << *i;
        if (fs::is_symlink(i->symlink_status()))
            std::cout << " -> " << fs::read_symlink(*i);
        std::cout << '\n';
        // do not descend into "b"
        if (i->path().filename() == "b")
            i.disable_recursion_pending();
    }
    fs::remove_all("sandbox");
}

Output:

  "sandbox/a"
   "sandbox/a/b"
  "sandbox/syma" -> "a"

See also

                  checks whether the recursion is disabled for the current directory
recursion_pending (public member function)
                  advances to the next entry
increment (public member function)
operator++