This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface

       None.

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard
       for Information  Technology  --  Portable  Operating  System  Interface  (POSIX),  The  Open  Group  Base
       Specifications  Issue  7, 2018 Edition, Copyright (C) 2018 by the Institute of Electrical and Electronics
       Engineers, Inc and The Open Group.  In the event of any discrepancy between this version and the original
       IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee  document.
       The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

       Any  typographical  or formatting errors that appear in this page are most likely to have been introduced
       during  the  conversion  of  the  source  files  to  man  page  format.  To  report  such   errors,   see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group                                   2017                                      CLOSEDIR(3POSIX)

       The  closedir() function shall close the directory stream referred to by the argument dirp.  Upon return,
       the value of dirp may no longer point to an accessible object of the type DIR.  If a file  descriptor  is
       used to implement type DIR, that file descriptor shall be closed.

       The closedir() function may fail if:

       EBADF  The dirp argument does not refer to an open directory stream.

       EINTR  The closedir() function was interrupted by a signal.

       Thefollowingsectionsareinformative.

ClosingaDirectoryStream
       The following program fragment demonstrates how the closedir() function is used.

           ...
               DIR *dir;
               struct dirent *dp;
           ...
               if ((dir = opendir (".")) == NULL) {
           ...
               }

               while ((dp = readdir (dir)) != NULL) {
           ...
               }

               closedir(dir);
           ...

       None.

       closedir — close a directory stream

       This  manual  page  is part of the POSIX Programmer's Manual.  The Linux implementation of this interface
       may differ (consult the corresponding Linux manual page for details of Linux behavior), or the  interface
       may not be implemented on Linux.

       None.

       Upon  successful  completion, closedir() shall return 0; otherwise, -1 shall be returned and errno set to
       indicate the error.

dirfd(), fdopendir()

       The Base Definitions volume of POSIX.1‐2017, <dirent.h>

       #include <dirent.h>

       int closedir(DIR *dirp);