How to know what Mac OS the app is running on?

Question

I\'ve seen in some projects something like:

#if .....
    code...
#endif

but i can\'t find it now...
Let\'s say, for example, if the ap

Answer 1

You can get OS version like this:

NSString *version = [[NSProcessInfo processInfo] operatingSystemVersionString];

NSLog(version);

Output:

---

And I see You want to get just version. It can be done like this:

NSString *version = [[NSProcessInfo processInfo] operatingSystemVersionString];

NSRange range = NSMakeRange(8, 4);
NSString *justVersion = [version substringWithRange: range];

NSLog(@"%@", justVersion);

Result:

And for checking:

if ([justVersion isEqualToString:@"10.7"]) {
    code...
}
else {
    ...
}