[Octave-bug-tracker] [bug #52542] Weird behaviour of vertical concatenation with empty char array

[Rik]

Follow-up Comment #6, bug #52542 (project octave):

convert_to_str is implemented by each octave_value type by the function
convert_to_str_internal.  For a real matrix like ones() the code should be in
libinterp/octave-value/ov-re-mat.cc.  The function convert_to_str internal in
that file begins with


  octave_value retval;
  dim_vector dv = dims ();
  octave_idx_type nel = dv.numel ();

  charNDArray chm (dv);

  bool warned = false;

  for (octave_idx_type i = 0; i < nel; i++)


This looks alright, unless the constructor for charNDArray is somehow not
doing the right thing.


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