[Octave-bug-tracker] [bug #30289] save/load does not restore a variable created with ones()

[Olaf Till]

Follow-up Comment #2, bug #30289 (project octave):

According to src/data.cc:

            case oct_data_conv::dt_double:
              {
                if (val == 1 && dims.length () == 2 && dims (0) == 1)
                  retval = Range (1.0, 0.0, dims (1)); // packed form
                else
                  retval = NDArray (dims, val);
              }
              break;

it is intentional --- only saving is not yet handled. If this optimization is
kept and saving is changed accordingly, it will probably break backwards
compatibility of save-ed data, since the current format of saved data does not
seem to allow zero-increment ranges. Maybe there should be an "-oct3.2" switch
of the "save" command, leading to expansion of such ranges, for backwards
compatibility...

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