system verilog - systemverilog return dynamic array from function -

i trying return dynamic array function, did dome job dont know how dynamic, mean without declare "data_len" helping,

module test1();  typedef integer dyn_arr[];  function dyn_arr get_register_name();     int data_len = 3;     get_register_name = new [data_len] ;     get_register_name[0] = 5;     get_register_name[1] = 2;  endfunction   dyn_arr my_q;    initial begin        my_q = get_register_name();       $display("%d",my_q[1]);       $display("%d",my_q[0]);   end  endmodule 

you can pass dynamic array reference in function purpose.

here sample code it.

module tp();   integer a[];    initial   begin     return_x(a);     $display("a - %p", a);   end endmodule  function automatic void return_x(ref integer x[]);   x = new [3];   x = '{3,3,3}; endfunction  // output -  // - '{3, 3, 3}