Does Simulink offer any block that can tell me if the input is signed or unsigned ?

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I am using Simulink/Embedded Coder and I was implementing a subsytem that needs to know if one of its inputs is signed or unsigned.
is there a block/function that can tell if an input is signed or unsinged? For example if the type of the input is Uint8, Uint16,Uint32 then the output of the block will be 0, and if the type is Int8, Int16, Int32 the block will be 1, let's say.
Thank you

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Answers (1)

Benjamin Thompson
Benjamin Thompson on 31 Jan 2022
There is a block in the Math Operations library called "Sign".
Diaa Younes
Diaa Younes on 1 Feb 2022
Your suggsetion of having a function block and the "isa" seems to be the solution. I tried it, it works; at least in simulation. I am yet to try to see if embeded coder will be fine with.
function y = fcn(u)
y = isa(u, 'uint8') || isa(u, 'uint16') || isa(u, 'uint32') || isa(u, 'uint64') ;
The Simulink signal attribute block didn't seem to help.
Thank for your answer.

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