[Octave-bug-tracker] [bug #34967] Bad behavior of structures with an empty cell

[Mike Miller]

Update of bug #34967 (project octave):

                Severity:              3 - Normal => 2 - Minor              
                  Status:                    None => Need Info              
                 Release:                   3.4.2 => dev                    

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Follow-up Comment #4:

The following commands still produce odd results in the current development
version of Octave (4.1.0+):


octave:1> val = struct("name", {});
octave:2> val.foo
octave:3> val.bar
octave:4> [1, 2, val.name, 4, 5]
ans = [](0x0)


I'm assuming what we want is the same behavior as if val were a non-empty
struct array:


octave:1> val.name = {};
octave:2> val.foo
error: structure has no member 'foo'
octave:3> val.bar
error: structure has no member 'bar'
octave:4> [1, 2, val.name, 4, 5]
ans =
{
  [1,1] = 1
  [1,2] = 2
  [1,3] = 4
  [1,4] = 5
}


Or should array concatenation produce an error as in the assignment case, as
below?


octave:4> x = val.name
error: value on right hand side of assignment is undefined
octave:5> [1, 2, val.name, 4, 5]
error: value on right hand side of assignment is undefined


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