[Octave-bug-tracker] [bug #51725] Adding mxGetProperty to Matlab API

[John W. Eaton]

Follow-up Comment #10, bug #51725 (project octave):

Rik: This is what I see:


octave:1> x = containers.Map;
octave:2> mexprop (x, "FooBar")
octave:3> assert (mexprop (x, "FooBar"), [])
error: assert (mexprop (x, "FooBar"),[]) failed
error: called from
    assert at line 92 column 11
octave:3> x = mexprop (x, "FooBar")
error: value on right hand side of assignment is undefined


so it looks to me like converting a NULL mxArray pointer to an octave_value
object creates an undefined octave_value, not an empty Matrix.

What does Matlab do if plhs[0] is NULL?

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