[Octave-bug-tracker] [bug #33197] sortrows does not work with single row arrays

[Marco Caliari]

Follow-up Comment #1, bug #33197 (project octave):

I confirm the problem.

When you call sortrows with a row as first argument and a scalar as second
argument, then sort_rows_idx in ov-base-scalar.h is called, which gives an
empty vector 1x0 as output. I don't know if there is a reason for that. I can
fix the problem if I replace


return Array<octave_idx_type> (dim_vector (1, 0));
-verbatim

with


Array<octave_idx_type> idx;
idx.resize (dim_vector (1, 1));
idx(0) = 0;
return idx;


which is somehow similar to the result of sort some lines above. But maybe it
is safer to modify sortrows.m with something like


if (rows (A) == 1)
  i = 1;
elseif (issparse (A))
  ...


Marco

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