[Octave-bug-tracker] [bug #57830] rmdir and other file functions should not return status unless nargout > 1

[Rik]

URL:
  <https://savannah.gnu.org/bugs/?57830>

                 Summary: rmdir and other file functions should not return
status unless nargout > 1
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Sun 16 Feb 2020 10:14:36 AM PST
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: Confirmed
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: dev
         Discussion Lock: Any
        Operating System: Any

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Details:

This bug is similar to bug #57799 which resolved the same situation for
mkdir().

The Matlab compatibility issue regards file functions (such as rmdir) when
called with no output arguments, or more than 1 output argument (nargout >
1).

In Matlab, when called with no output arguments, and the file operation fails,
an error is thrown and a message printed to the screen.  If there is at least
one output argument (status) then no error is thrown because the failure of
the operation is signaled through the return variable instead.  This is a
sensible pattern that Octave should follow as well.

Functions which *appear* to require changeover are:


link
symlink
rename
rmdir
unlink
mkfifo







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