[Octave-bug-tracker] [bug #51633] Empty indexing of struct returns empty struct array

[Rik]

Update of bug #51633 (project octave):

                  Status:                    None => Confirmed              

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Follow-up Comment #9:

Marking as confirmed.  The issue seems to be that an empty indexing expression
for structs is interpreted as indexing with a null array.

Sample Code:


octave:9> s = struct ("x", 1:10)
s =

  scalar structure containing the fields:

    x =

        1    2    3    4    5    6    7    8    9   10


octave:10> s()
ans =

  0x0 struct array containing the fields:

    x

octave:11> s([])
ans =

  0x0 struct array containing the fields:

    x

octave:12> s(1)
ans =

  scalar structure containing the fields:

    x =

        1    2    3    4    5    6    7    8    9   10



Conversely, for Arrays no index expression means perform no indexing operation
at all.


octave:13> r = [1:10]
r =

    1    2    3    4    5    6    7    8    9   10

octave:14> r()
ans =

    1    2    3    4    5    6    7    8    9   10

octave:15> r([])
ans = [](0x0)
octave:16> r(1)
ans =  1





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