Operate on coder.Constant types for global variables in Matlab Coder

Say I want 2 global variables as -globals input to a codegen in Matlab Coder. The first is is a coder.Constant, and the second depends on the first, eg:

g1 = coder.Constant(3);
g2 = g1+1;
codegen example -globals {'g1',g1,'g2',g2}

This will give the error message "Undefined operator '+' for input arguments of type 'coder.Constant'."

Is there any way to operate on coder.Constant variables?

I know there is a very simple work around for this example, but for my code it would be a lot neater to operate directly on g1.

Alternatively:

Is it possible to extract the value in g1 as a normal data type? Eg the following:

a = double(g1);

But this returns the error message: "Conversion to double from coder.Constant is not possible."

[Ryan Livingston]

Interesting idea. We've made an internal note to think about this. To your second question if you can extract the value

c = coder.Constant(1)

c = 

coder.Constant
        1
   
   
c.Value

ans =

     1

[Philip Bergander]

The .Value field solves my problem entirely! Thanks a lot, Ryan!

It would still be interesting with an answer to my first question though.

[Ryan Livingston]

Is the first question: Is there any way to operate on coder.Constant variables?

If so, then there's no direct way to operate on coder.Constant values apart from extracting the Value field. We've made a note to think about what operating on these would mean and if we could support something like that.