[Octave-bug-tracker] [bug #55245] exist accepts empty matrix as first argument in Matlab but is error in Octave

[Richard]

URL:
  <https://savannah.gnu.org/bugs/?55245>

                 Summary: exist accepts empty matrix as first argument in
Matlab but is error in Octave
                 Project: GNU Octave
            Submitted by: crobar
            Submitted on: Wed 19 Dec 2018 04:16:56 PM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: Richard Crozier
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.4.1
        Operating System: Any

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Details:

exist accepts empty matrix as first argument in Matlab but this is an error in
Octave

In Matlab R2018b


>> exist ([])

ans =

     0.0000e+000


In Octave 4.4.1


octave:2> exist ([])
error: wrong type argument 'null_matrix'
error: exist: NAME must be a string







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