The Open Group Base Specifications Issue 7, 2018 edition
IEEE Std 1003.1-2017 (Revision of IEEE Std 1003.1-2008)
Copyright © 2001-2018 IEEE and The Open Group

NAME

closedir - close a directory stream

SYNOPSIS

#include <dirent.h>

int closedir(DIR *
dirp);

DESCRIPTION

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.

RETURN VALUE

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

ERRORS

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.

The following sections are informative.

EXAMPLES

Closing a Directory Stream

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); ...

APPLICATION USAGE

None.

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

dirfd, fdopendir

XBD <dirent.h>

CHANGE HISTORY

First released in Issue 2.

Issue 6

In the SYNOPSIS, the optional include of the <sys/types.h> header is removed.

The following new requirements on POSIX implementations derive from alignment with the Single UNIX Specification:

End of informative text.

 

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