Class in system verilog

[sunidrak]

Can anybody plz explain the difference and meaning of the two Code Snippet highlighted...


code -1



class base;
task print();
........
endtask
endclass
class derived extends base;
task print();
........
endtask
endclass

module main();
base b; //Instance
derived d; //Instance
initial
begin
b=new();
d=b;
d.print();
end
endmodule

code-2


class base;
task print();
........
endtask
endclass
class derived extends base;
task print();
........
endtask
endclass
module main();
base b; //Instance
derived d; //Instance
initial
begin
b=new();
d=new();
d.print();
end
endmodule

plz explain the meaning of declaration in this manner


Regards
Sunil.

 

[dave_59]

You need to Understand the difference between virtual and non-virtual methods in SystemVerlog. Search for examples of that.

 

[srish]

in code1 print() task of base class will run or execute ..............in code2 print() task of class derived will execute.......you can refer to www.testbench.in and refer to inheritance section of oops