Coder - Static size string in sprintf

How can I prevent MATLAB Coder to generate variable size code for a simple number insertion into a string?

for i=1:4
    
    name=sprintf('Data%d.bin',int8(i));
    stuff(name)
end

In the generated C code it uses a lot of functions like emxutil to determine the size of the generated string for sprtintf.

I just want to say that i is only one digit. How can I do that?!

The followings also do not work

name=['Data',char(i),'.bin'];

Using the following also gives an error for generating code that LHS is fixed sized but RHS is varying:

coder.varsize('name',[1,14],[0,0])

Answer 1

[Walter Roberson]

If you know that it is a single digit then do not use that technique. Instead you can use

name = ['Data', char(i+'0'), '.bin']

Or if you really need to

name = 'DataX.bin';
name(5) = char(i+48);

[amin ya]

Thank you. Your code works very well with one digit.

I just tested the following again. It works good also and can be used for more digits, and it does not use var size stuff.

name=['Data',int2str(i),'.bin'];