Randc does not work with 2d array

SystemVerilog
,
3

In reply to dave_59:

Thank you Dave,

“You call randomize() inside the for-loop displaying the array. That means randomize() gets called many times before some elements are displayed. Call randomize() once before trying to display.”



class test3_c;                 
                               
rand logic [7:0] width;        
rand logic [7:0] height;       
randc logic [2:0] arr_2d[][];  
randc logic [2:0] queue_1d[$]; 
randc logic [2:0] arr_1d[];    
randc logic [2:0] arr;         
                               
                               
constraint size_con {          
  width   inside {[0:255]};    
  height  inside {[0:255]};    
  arr inside {[2:7]};          
  arr_1d.size == 3;            
  foreach(arr_1d[i]) {         
    arr_1d[i] > 1;             
    arr_1d[i] < 6;             
  }                            
}                              
                               
//constraint uni {               
//  unique {arr_1d};             
//}                              
                               
endclass

module test3;
       
initial begin
  test3_c test;
  test = new(); 
  //for arr;
  void'(test.randomize());
  for(int i=0; i<3; i++) begin
      $display("data[%0d]=%0d", i,test.arr);
  end  
end

But if I do this, then I get the same values

data[0]=6
data[1]=6
data[2]=6