How to define preprocessor macro to check iOS version

Question

I use it to check iOS version, but it doesn\'t work:

#ifndef kCFCoreFoundationVersionNumber_iPhoneOS_5_0
#define kCFCoreFoundationVersionNumber_iPhoneOS_5_0          


        

Answer 1

#ifdef __IPHONE_5_0 

etc

Just look for that constant. All the objective c constants start with two underscores