Re: Synonym

[Thomas D. Dean]

On 2020-04-08 12:02, John W. Eaton wrote:
> On 4/8/20 12:59 PM, Tony Richardson wrote:
>
> > I've noticed that the two cases:
> >     varargout = cell (nargout, 1);
> >     [varargout{:}] = svd(varargin{:});
> >
> > and
> >     [varargout{1:nargout}] = svd(varargin{:});
> >
> > behave differently when called with no output arguments: xsvd(rand(2)).
> > The first case returns nothing i.e. ans is not set, while the second
> > case seems to behave normally.
>
> I pushed the following changeset to fix that problem:
>
>    http://hg.savannah.gnu.org/hgweb/octave/rev/56c209ff0a08
>
> jwe

This seems to fail.

octave:20> version("-hgid")
ans = 7ac8b3188b27+
octave:21> function varargout = xsvd (varargin)
>   numel (varargin)
>   [varargout{:}] = svd (varargin{:});
> end
octave:22> xsvd (rand (2))
ans = 1
error: invalid dimension inquiry of a non-existent value
error: called from
    xsvd at line 3 column 18

Or, did I do something wrong?

Tom Dean