Argument hardcoded as NULL

SystemVerilog
1

when an argument is hardcoded as null in a task declaration ,what does it mean

can’t we change the value of that argument in the definition

e.g.,

extern function new(string name = "Scoreboard", pkt_mbox driver_mbox = null, receiver_mbox = null);
2

In reply to yethishwar:

They are default values that allow you to omit the argument when calling the task/function. See section 13.5.3 Default argument values in the 1800-2017 LRM.