[Octave-bug-tracker] [bug #65153] Unexpected error when using the ~ output placeholder

[John W. Eaton]

Follow-up Comment #17, bug#65153 (group octave):

That looks like the expected behavior to me.  See my comments below.


function isatest()
        [ ~, a2 ] = isat1();  ## nargout => 2, isargout(1:3) => [0, 1, 0]

        [ ~, a2, ~ ] = isat1(); ## nargout => 3, isargout(1:3) => [0, 1, 0]
endfunction

function [ a1, a2, a3 ] = isat1()
        [ nargout(), isargout(1:3) ]

        [ a1, a2, a3 ] = isat2();  ## nargout => 3, isargout(1:3) => [1, 1,
1]
endfunction

function [ a1, a2, a3 ] = isat2()
        [ nargout(), isargout(1:3) ]

        a1 = a2 = a3 = 1;
endfunction


What do you mean by "isargout() and nargout() don't propagate to inner calls"?
 Where do you expect them to get their values from?  The only reasonable place
is the immediate caller.

"Adding a trailing ~ to a function call cause nargout to increase ... is this
expected?"

Yes, ~ counts as an output, it is just not assigned to anything


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