$urandom_range(max,min) returning same value

SystemVerilog
1

Hi,
Is there a reason why this code returns the same value in all its loop iterations ?

  initial begin
    repeat(1000) begin
    
      int v  = $urandom_range(400,0);
     
      $display(v);
    end
  end

If I modify it to this code , then the value returned is different in each loop iteration :

  initial begin
    repeat(1000) begin
    
      int v ;
       v  = $urandom_range(400,0);
     
      $display(v);
    end
  end
2

In reply to karthikmaniv28:

The correct syntax is $urandom_range(min, max) the way you wanted;

3

In reply to karthikmaniv28:

The first example you wrote is illegal. It should have generated an error preventing the problem you just ran into.

See https://verificationacademy.com/forums/systemverilog/function-arguments-not-initializing-variable-inside-body#reply-54684

You need to change your code so that the call to $uramdom_range happens on each iteration of the loop as it does in the second example