Hello,
What you are observing is due to an optimization called constant folding. This is explained here: https://www.mathworks.com/help/coder/ug/matlab-coder-optimizations-in-generated-cc-code.html
For the particular example you shared, unfortunately, there is no straightforward way to get the generated code looking the way you expect today. However, FWIW, if your MATLAB code is rewritten to look like this:
function y = dum_func(x)
my_constant = 5;
coder.ceval('(void)', coder.ref(my_constant));
y = my_constant + x;
end
Then the generated code will look like this:
double dum_func(double x)
{
double my_constant;
my_constant = 5.0;
(void)(&my_constant);
return my_constant + x;
}
The use of ceval might stop all optimizations on the variable my_constant and yield the result above.
Hope this helps!
