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

[Rik]

Follow-up Comment #5, bug #52542 (project octave):

char() is located in libinterp/corefcn/strfcns.cc.  The opening lines are


  if (nargin == 0)
    retval = "";
  else if (nargin == 1)
    retval = args(0).convert_to_str (true, true,
                                     args(0).is_dq_string () ? '"' : '\'');
  else
    {


That suggests convert_to_str() has a problem, but it also means there is a
third case where multiple arguments are passed to the char function.  Indeed,
this fails as well in a different manner.


double ([char(ones(0,4), ones(4,0)); 'A'])
ans =

   65
   32
   32
   32
   32
   32




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