rohitgeek <rohit23taneja@xxxxxxxxx> writes: > This is test.c > > main() > { > int a,b,c; > a= 5; > b=10; > d=30; > c= a*b + 30 ; > } What everyone is trying to tell you is that that program is precisely equivalent to this one: main() { } The optimizer is smart enough to reduce the former to the latter. Ian