closedir - close a directory
int closedir(DIR *dirp);
The closedir() function closes the directory stream associated with dirp. A successful call to closedir() also closes the underlying file descriptor associated with dirp. The directory stream descriptor dirp is not available after this call.
The closedir() function returns 0 on success. On error, -1 is returned, and errno is set appropriately.
Invalid directory stream descriptor dirp.
For an explanation of the terms used in this section, see attributes(7).
POSIX.1-2001, POSIX.1-2008, SVr4, 4.3BSD.
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