how to use range in switch-case

[himanshumad]

Hi! Guys

Can anyone help me in knowing how can i specify a range in switch case.
For example if the code in nested if else is as follows :

if(i<0) printf("Negative");
else if(i>0) printf("positive");
else printf("No. is Zero");

Now my point is how can one make this module using switch-case.

Thanks And regards
Himanshumad.

[Salem]

> Can anyone help me in knowing how can i specify a range in switch case.
You can't

You have to list every single value, and since you need the full range of int, that's gonna take some typing...

[alex]

You can't use ranges in switch... But you can do this:

switch((i>0)-(i<0))
{
   case 1: printf("positive\n"); break;
   case 0: printf("zero\n"); break;
   case -1: printf("negative\n"); break;
}

alex

[bigtamscot]

I will take Alex word about switch but what you could do....

if ( i == 0) printf("Zero");
else  printf("%s", i < 0 ? "Negative":"Positive");