Checking iOS version in above 8.0

checking-ios-version.txt

NSString *getBuildVersion(NSString *textToBeSearch)
{
    //the pattern to search for
    //the \. escapes the . in regex. but the \ needs to be escaped in objective c
    //thus \\.
    NSString *pattern = @"Build (.*)\\)";
    
    //capture any errors when creating the NSRegularExpression Object
    NSError *error = nil;
    
    //create a regex object using our pattern and options.
    //we set the options to perform a case insensitive search
    NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:pattern options:NSRegularExpressionCaseInsensitive error: &error];
    NSRange range = NSMakeRange(0, textToBeSearch.length);
    
    if(regex == nil){//handle errors
        return nil;
    } else {
        NSTextCheckingResult *match = [regex firstMatchInString:textToBeSearch options:0 range:range];
        NSRange capture_range = [match rangeAtIndex:1]; //get the first matched group
        //        NSLog(@"Name: %@", [textToBeSearch substringWithRange:capture_range]);
        return [textToBeSearch substringWithRange:capture_range];
    }
}

int main(int argc, char *argv[])
{
    //NSOperatingSystemVersion ios_10 = (NSOperatingSystemVersion){.majorVersion = 10, .minorVersion = 0, .patchVersion = 0};
    NSOperatingSystemVersion ios8_0_1 = (NSOperatingSystemVersion){8, 0, 1};
    if ([[NSProcessInfo processInfo] isOperatingSystemAtLeastVersion:ios8_0_1]) {
      // iOS 8.0.1 and above logic
    } else {
      // iOS 8.0.0 and below logic
    }
    
    NSString *versionString = [[NSProcessInfo processInfo] operatingSystemVersionString];
    NSString *buildVersionString = getBuildVersion(versionString);

}