Simulink Compiled Code NaN

Question

B. J. 2011-8-10

1
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https://ww2.mathworks.cn/matlabcentral/answers/13485-simulink-compiled-code-nan

Hello,

I have a theoretical question I am unable to test right now...if I compile some simulink code down, and pass some "bad" data into it, what type of error handling would I receive? For example, if my simulink code was simply x (input)

y = 3*x(1)/x(2)

And I managed to have x(1) = NaN...or worse, x(2) = 0, what would my compiled code throw me?

thanks, B.

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Answer 1

Mike Hosea 2011-8-10

1
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https://ww2.mathworks.cn/matlabcentral/answers/13485-simulink-compiled-code-nan#answer_18417

Look under

Simulation-->Configuration Parameters-->Diagnostics-->Data Validity

There is a setting for "Inf or NaN block output". You can set it to "none", "warning", or "error". That's in simulation, of course. If you build code for some standalone target, e.g. exe, then you will not get an error or a warning for this condition, just Infs or NaNs, as the case may be. -- Mike