Can I get the number of a case statement in Objective-C? - objective-c

Question

I have a switch statement like this:
switch (int) {
case 0:
// do x
break;
case 1:
// do y
break;
default:
break;
}
Can I get the case number?
The reason I ask is that I have a method in each one that would use a variable int. For example:
switch (int) {
case 0:
[self doMethod:string setTag: <CASE NUMBER> ];
break;
case 1:
[self doMethod:string setTag: <CASE NUMBER> ];
break;
default:
break;
}
Is there any way to do this?
Thanks!

Answer 1

switch (x) {
case 0:
// if you're here, you know x == 0
[self doMethod:string setTag: x];
break;
...
}
But unless string is a different variable or literal in each case, this doesn't make much sense; you could as easily say
if (x == 0 || x == 1) {
[self doMethod: string setTag: x];
}

Answer 2

First off, you can't do switch (int). int is a data type. You need a variable in there.
Then all you need to do is reference the variable in the case statement:
int someVar = ... // some value
switch (someVar) {
case 0:
[self doMethod:string setTag:someVar];
break;
case 1:
[self doMethod:string setTag:someVar];
break;
}
BTW - if you do the same thing for multiple cases you can do:
int someVar = ... // some value
switch (someVar) {
case 0:
case 1:
[self doMethod:string setTag:someVar];
break;
default:
// other stuff
break;
}
And as Josh pointed out, depending on your needs, this whole thing could simply be:
int someVar = ... // some value
[self doMethod:string setTag:someVar];
or maybe:
int someVar = ... // some value
if (someVar >= 0 && someVar <= 1) {
[self doMethod:string setTag:someVar];
}