initializer-string for char array is too long. After setting compile sources as Objective-C++ in Xcode

Question

I created a new single view project to test this. Inside my ViewController.m here is the code:

I'm not sure why when I set my compile sources as ObjectiveC++ it gives me this error? initializer-string for char array is too long

static const char _basex[3] = "12"; <-This is always ok
static const char _basex2[2] = "12"; <-Gives the initializer error when compiler set to Objective-C++

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

Answer 1

The C-string literal "12" takes 3 characters, 1 , 2 , and the null terminator.

If you want to initialize the 2 char array, do this:

static const char _basex2[2] = { '1', '2' };