Want to check whenever my command line value is x

SystemVerilog
,
5

In reply to zain_17501:

We did not need to see all your code, just the declarations relevant to your original example.
Now that I see that mu_value is declared as

int mu_value[],mu_value1[$];

I can tell you the code

for (int i = 0; i < mu_value.size(); i++) begin
    if (mu_value[i] !== 'x) begin
        mu_value[i] = 'x;
    end
end

will set every element to 0 because int is a 2-state type. Perhaps you should use integer instead. That will set every element to 'x. Sems like a strange piece of code either way.