How to loop through all the input of a function

I have a simulink matlab function which has many inputs.

output = fcn(input1, input2, ...  inputx )

Is there a way to iterate through every input on by one inside the function?

I know if the function take input as varargin I can use varargin{i} to loop through. But what if the input to the function is fixed?

[Matt J]

Normally, if the inputs are something you would want to loop over, they shouldn't even be separate arguments in the first place. They should be combined into an array, and passed as a single argument.

[Adam Danz]

This sounds like a potential can of worms.

Here are two alternatives.

1. "Varargin" is a viable solution (as you mentioned).
2. Reducing the function to 1 input and using a cell array to pass multiple variables through the single input

[Umair Ali Shah]

I have same issue function cannot evaluate array and manual input is not a solution.

[Jonas]

aaand we could use the who() function at the start of the function together with the eval() function to work on the variables. but i would not suggest that

Answer 1

[Adam Danz]

As mentioned in the comments by Matt J and myself under this question, the only two recommended solutions to looping over input variables is

1. pack your inputs into a single array variable
2. use varargin which automatically packs all inputs into a cell array.

Then you can loop over all elements of the array.