Command line processor in UVM !!!

Command line processor provides  general interface to the command line arguments from the simulator to the UVM  test bench. To use the command line processor in your test bench singleton instance of command line processor has to be created as described below

uvm_cmdline_processor commandline_processor = uvm_cmdline_processor::get_inst();

To obtain the command line argument  get_arg_value() should be used

string  value = "intial_value";

int rt_value = commandline_processor.get_arg_value("+DIRECTION=",value);

Singleton class is the one which returns the same object irrespective of the number of time an object is created .command line processor is used as a singleton class.

Factory replacement options like set_type_override() ,set_inst_override() can be done using  command line processor arguments like +uvm_set_type_override   +uvm_set_inst_override ,