Why doesn't evalin('caller','nargout') work?
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Why doesn't the mynargout() function correctly return n=3? How can one programmatically evaluate nargout in the calling function?
[A,B,C]=Func();
function varargout=Func
varargout={1,2,3};
nargout
mynargout
end
function n=mynargout()
n=evalin('caller','nargout');
end
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Accepted Answer
Bruno Luong
on 1 Dec 2022
Edited: Bruno Luong
on 1 Dec 2022
Obviously it is NOT a normal "function", according to the doc of nargout
"nargout returns the number of function output arguments specified in the call to the currently executing function. Use this syntax in the body of a function only."
Therfore the nargout won't be propagae by evalin but returns the result corresponds number of the output to the last function in the stack meaning mynargout
[A,B,C]=Func();
function varargout=Func
varargout={1,2,3};
a=nargout
b=mynargout
end
function n=mynargout()
n=evalin('caller','nargout');
end
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