Default null for dynamic virtual interface array in the method parameter list

SystemVerilog
, ,
2

In reply to ilia:

Few modification to your code and it works

interface test_if;
endinterface : test_if
class test_class;
endclass : test_class
function automatic int test_func(test_class classes[], virtual interface test_if ifs[] = {});
  if (classes.size() == 0)
    return 0;
  else
    return 1;
endfunction : test_func
module main();
  test_class cls_arr[];
  bit ret;
  initial begin
    ret = test_func(cls_arr);
    $display("ret:%0d",ret);
  end
endmodule